Showing papers on "Chemical resistance published in 2005"
Patent•
12 Jan 2005
TL;DR: Fluoropolyether rubber compositions comprising a polyfluorodialkenyl compound terminated with alkenyl groups are suited for injection molding, typically by LIMS as discussed by the authors, and rubber parts resulting from curing have heat resistance, chemical resistance, solvent resistance, low-temperature properties, high hardness and high strength.
Abstract: Fluoropolyether rubber compositions comprising (A) a polyfluorodialkenyl compound terminated with alkenyl groups, (B) a perfluoropolyalkenyl compound or a polyalkenylsiloxane compound, (C) a fluorine-modified organosilicon compound having at least two SiH groups, (D) a platinum group compound, and (E) hydrophobic silica powder are suited for injection molding, typically by LIMS. Rubber parts resulting from curing have heat resistance, chemical resistance, solvent resistance, low-temperature properties, high hardness and high strength.
53 citations
TL;DR: In this article, the effects of tetraethylorthosilane (TEOS) oligomers on ENLO film properties such as Young's modulus, tensile strength and elongation and on the coated film properties of pencil hardness, impact resistance, adhesion, chemical resistance and contact angles were investigated Fracture toughness and dynamic mechanical properties and thermal properties of the hybrid films were also evaluated.
50 citations
28 Jan 2005
37 citations
Patent•
10 Jan 2005TL;DR: Fluoropolyether rubber compositions comprising a polyfluorodialkenyl compound terminated with alkenyl groups are suited for injection molding, typically by LIMS as mentioned in this paper, and rubber parts resulting from curing have heat resistance, chemical resistance, solvent resistance, low-temperature properties, high hardness and high strength.
Abstract: Fluoropolyether rubber compositions comprising (A) a polyfluorodialkenyl compound terminated with alkenyl groups, (B) a perfluoropolyalkenyl compound or a polyalkenylsiloxane compound, (C) a fluorine-modified organosilicon compound having at least two SiH groups, (D) a platinum group compound, and (E) hydrophobic silica powder are suited for injection molding, typically by LIMS. Rubber parts resulting from curing have heat resistance, chemical resistance, solvent resistance, low-temperature properties, high hardness and high strength.
33 citations
TL;DR: The diblock copolymers of polystyrene and poly(tert-butyl acrylate) (PSt-b-PtBA) with various molecular weights and hydrophobic/hydrophilic (styrene/acrylic acid) chain length were prepared by atom transfer radical polymerization (ATRP) as discussed by the authors.
Abstract: The diblock copolymers of polystyrene and poly(tert-butyl acrylate) (PSt-b-PtBA) with various molecular weights and hydrophobic/hydrophilic (styrene/acrylic acid) chain length were prepared by atom transfer radical polymerization (ATRP). Selective hydrolysis of the diblock copolymers (PSt-b-PtBA) resulted in amphiphilic block copolymers of polystyrene and poly(acrylic acid) (PSt-b-PAA). The amphiphilic block copolymers of PSt-b-PAA with average molecular weight (Mn) <7500 were proved to be critical in dispersing the pigments of UV curable ink-jet inks for manufacturing the color filter. Incorporating DB2 diblock copolymer dispersants with styrene/acrylic acid ratio at 1.5 allowed more UV curable compositions in the red and blue inks without deteriorating pigment dispersing stability and jetting properties of the ink-jet inks. The ink drops can be precisely ejected into the tiny color area. Better properties of the cured red stripe such as nanoindentation hardness and chemical resistance were found. The competing absorption of UV light by the blue pigment hindered the through cure of monomers near the interface between glass substrate and the blue stripe. This leads to lower hardness and poor chemical resistance of the UV cured blue stripe. © 2005 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 43: 3337–3353, 2005
33 citations
TL;DR: In this paper, a diblock terpolymer poly(VC2-co-MA)-b-(PFDA) was synthesized by RAFT process and the migration of the additive was clearly shown by scanning electron microscopy EDX and by measurements of surface energy, and the influence of the nature of solvents used to prepare the coating was clearly established.
29 citations
TL;DR: A novel amine terminated elastomeric siloxane modifier (SA amine) for epoxy networks has been synthesized and characterized in this paper, where the dual role of SA amine not only as a curing agent and but also as a toughener was studied.
Abstract: A novel amine terminated elastomeric siloxane modifier (SA amine) for epoxy networks has been synthesized and characterized. The dual role of SA amine not only as a curing agent and but also as a toughener was studied. Curing studies of conventionally available epoxy resin, diglycidyl ether of bisphenol A (DGEBA) using SA amine along with diamino diphenyl sulfone (DDS) has been carried out. An interesting feature was the complete miscibility of the siloxane oligomer with DGEBA. In addition, the cured laminates were analyzed for thermal, mechanical, and surface morphology and also for their chemical resistance. The thermo mechanical properties were studied using dynamic mechanical analysis. The modified systems showed very high thermal stability. A single glass transition temperature was observed for the modified systems. The moisture resistance of the samples improved notably with the introduction of siloxane into the systems. The modified systems also improved the impact strength of the materials to a greater extent (35-50%) even though there was a small decrease in their tensile properties (12%). The system with maximum SA amine content showed the higher impact strength value and also a higher thermal stability without any phase separation in the morphology.
28 citations
Patent•
14 Sep 2005TL;DR: A fluorocopolymer which comprises repeating units (a) consisting of tetrafluoroethylene and/or chlorotrifluorethylene, repeating units based on a cyclic hydrocarbon monomer having a dicarboxylic anhydride group and an endocyclic polymerizable unsaturated group, and repeating units(c) based on other monomer, with a volume flow rate of from 0.1 to 1,000 mm 3 /sec., and a laminate and coated product thereof.
Abstract: A fluorocopolymer which comprises repeating units (a) based on tetrafluoroethylene and/or chlorotrifluoroethylene, repeating units (b) based on a cyclic hydrocarbon monomer having a dicarboxylic anhydride group and an endocyclic polymerizable unsaturated group, and repeating units (c) based on other monomer, wherein the repeating units (a) are from 50 to 99.89 mol %, the repeating units (b) are from 0.01 to 5 mol % and the repeating units (c) are from 0.1 to 49.99 mol %, based on the total molar amount of the repeating units (a), (b) and (c), and which has a volume flow rate of from 0.1 to 1,000 mm 3 /sec., and a laminate and coated product thereof. The fluorocopolymer is excellent in adhesion, heat resistance, weather resistance, stress cracking resistance and fuel barrier properties. The laminate is excellent in interlaminar bonding and fuel barrier properties. The coated product is excellent in heat resistance, chemical resistance, corrosion resistance, oil resistance, weather resistance, abrasion resistance and lubricating properties.
26 citations
Patent•
26 Apr 2005TL;DR: In this article, a multilayer hose for the transportation of a high-temperature liquid and/or gas chemical comprising at least two or more layers including a layer (a) comprising (A) an aliphatic polyamide and a layer comprising (B) a semi-aromatic polyamide, having a carbon number of 9 to 13.
Abstract: A multilayer hose for the transportation of a high-temperature liquid and/or gas chemical comprising at least two or more layers including a layer (a) comprising (A) an aliphatic polyamide and a layer (b) comprising (B) a semi-aromatic polyamide comprising a diamine unit containing an aliphatic diamine unit having a carbon number of 9 to 13 in an amount of 60 mol% or more based on all diamine units and a dicarboxylic acid unit containing a terephthalic acid and/or naphthalenedicarboxylic acid unit in an amount of 50 mol% or more based on all dicarboxylic acid units. The present invention provides a multilayer hose, for the transportation of a high-temperature liquid and/or gas chemical, excellent in hot water resistance, chemical resistance, durability, interlayer adhesion, and liquid and/or gas chemical permeation-preventing property, and particularly excellent in the liquid and/or gas chemical permeation-preventing property at high temperatures.
26 citations
TL;DR: A thermally stable UV-curable epoxy coating has been developed by using functional amino silanes, viz., N-[3-(trimethoxysily 1) propyl] ethylenediamine and a copolymer of aminopropylmethyl dimethyl siloxane in definite ratio.
25 citations
TL;DR: Granite powder-reinforced epoxy composites have been developed with varying granite powder content by weight percentage and the variation of tensile strength and impact strength has been studied as discussed by the authors.
Abstract: Granite powder-reinforced epoxy composites have been developed with varying granite powder content by weight percentage. The variation of tensile strength and impact strength has been studied and the tensile strength and impact strength were found to be at a maximum for the 50% granite powder-reinforced epoxy composite. The chemical resistance test indicates that the composite materials are resistant to acetic acid, concentrated hydrochloric acid, sodium hydroxide, benzene, carbon tetrachloride, and n-hexane.
Patent•
14 Mar 2005
TL;DR: In this paper, a photo-sensitive resin composition is proposed to provide excellent flame resistance, good solubility in an alkaline aqueous solution, good developability and chemical resistance, a dry film resist using the photosensitive resin composition, and a printed wiring board using the dry film resistor.
Abstract: PROBLEM TO BE SOLVED: To provide a photosensitive resin composition having excellent flame resistance, good solubility in an alkaline aqueous solution, good developability and chemical resistance, a dry film resist using the photosensitive resin composition, and a printed wiring board using the dry film resist. SOLUTION: The photosensitive resin composition contains, as essential components, (A) a cyclic phosphoric ester having hydrogen atoms or methyl groups and a monovalent organic group having one or more (meth)acryloyl groups or glycidyl groups, (B) a cyclic phosphazene compound, (C) a polyimide soluble in an organic solvent and/or a polyamic acid soluble in an organic solvent and (D) a photoreaction initiator. COPYRIGHT: (C)2006,JPO&NCIPI
Patent•
24 Mar 2005
TL;DR: In this article, a thermoplastic resin composition is provided, which is obtained by compounding 100 pts. wt. of polyester resins, polyamide resins and polyolefin resins.
Abstract: PROBLEM TO BE SOLVED: To provide at least one thermoplastic resin selected from a polyester resin, polyamide resin, polystyrene-based resin and polyolefin resin, excellent in workability, safety, heat resistance, mechanical strength, impact resistance, chemical resistance, hydrolysis resistance, scratch resistance, etc. SOLUTION: A thermoplastic resin composition is provided, which is obtained by compounding 100 pts. wt. of (A) at least one thermoplastic resin selected from a polyester resin, polyamide resin, polystyrene-based resin and polyolefin resin with 0-100 pts. wt. of (B) a reinforcing filler and 0.01-10 pts. wt. of (C) a polyfunctional novolak epoxy resin having in one molecule at least two epoxy groups, obtained by glycidylation of a novolak resin less than 0.5 wt.% in free monomer component content, less than 10 wt.% in free dimer component content and 2 or less in dispersion degree. COPYRIGHT: (C)2005,JPO&NCIPI
Patent•
05 Apr 2005
TL;DR: In this paper, a composite material has a substrate, an organic adhesive layer, an inorganic barrier layer and an organic protective layer provided with chemical barrier action, and a production method for the composite material is also disclosed.
Abstract: PROBLEM TO BE SOLVED: To provide a composite material characterized by the excellent adhesion and barrier action of coatings, and improved chemical resistance, and to provide a method for producing the composite material of this type. SOLUTION: The composite material has a substrate, an organic adhesive layer, an inorganic barrier layer and an organic protective layer provided with chemical barrier action. A production method for the composite material is also disclosed. COPYRIGHT: (C)2006,JPO&NCIPI
TL;DR: In this article, a Si-B-N-C ceramic matrix modified by carbonaceous structures on the surface is presented, and a catalyzed growth of multiwalled carbon nanotubes (CNTs) of the bamboo-type or of carbon layers is observed.
Patent•
29 Aug 2005TL;DR: In this paper, a molded article for clean rooms which is made of a resin composition obtained by melt-mixing 100 parts by weight of a cyclic olefin polymer (A) having a glass transition temperature of 60-200˚C, 1-150 parts of a soft copolymer (B) and 0.001-1 part of a radical initiator (C) having two or more radically polymerizable functional groups in a molecule.
Abstract: Disclosed is a molded article for clean rooms which is made of a resin composition obtained by melt-mixing 100 parts by weight of a cyclic olefin polymer (A) having a glass transition temperature of 60-200˚C, 1-150 parts by weight of a soft copolymer (B) having a glass transition temperature of not more than 0˚C and obtained by polymerizing two or more monomers selected from the group consisting of olefins, dienes and aromatic vinyl hydrocarbons, 0.001-1 part by weight of a radical initiator (C), and 0-1 part by weight of a multifunctional compound (D) having two or more radically polymerizable functional groups in a molecule. Such a molded article for clean rooms is excellent in chemical resistance, heat resistance and dimensional accuracy, and is suppressed in volatile component discharge to the environment. In addition, since the molded article is excellent in wear resistance, generation of particles can be suppressed.
Patent•
29 Mar 2005
TL;DR: In this paper, the continuous fiber reinforced semi-aromatic polyamide resin composition includes 100 parts by mass of a polyamide, comprising a dicarboxylic acid unit (a) comprising a terephtalic acid unit and a diamin unit (b) having 50-100 mol% of a 1,9-nonanediamine unit and/or a 2-methyl-1,8-octanediamines unit, and 5-300 parts of a fibrous reinforcing material (B) having a fiber length of 3 mm or longer.
Abstract: PROBLEM TO BE SOLVED: To provide a resin composition excellent in water absorbing property, heat resistance, chemical resistance, fatigue resistance and the like, particularly capable of maintaining high mechanical strength even in case of exposing for a long time under the condition of a high temperature, and a molded article comprising the resin composition. SOLUTION: The continuous fiber reinforced semi-aromatic polyamide resin composition includes 100 parts by mass of a semi-aromatic polyamide resin (A) comprising a dicarboxylic acid unit (a) having 50-100 mol% of a terephtalic acid unit and a diamin unit (b) having 50-100 mol% of a 1,9-nonanediamine unit and/or a 2-methyl-1,8-octanediamine unit, and 5-300 parts by mass of a fibrous reinforcing material (B) having a fiber length of 3 mm or longer. COPYRIGHT: (C)2007,JPO&INPIT
Patent•
16 Mar 2005
TL;DR: In this paper, a water-based coating composition for surface treatment of metallic materials having excellent chemical resistance, corrosion resistance, solvent resistance and adhesion is provided, which is obtained by chain-elongation of a cationic urethane prepolymer using water or polyamine compound.
Abstract: In order to provide a water-based coating composition for surface treatment of metallic materials having excellent chemical resistance, corrosion resistance, solvent resistance and adhesion, a cationic aqueous urethane resin (F) is prepared, which is obtained by chain-elongation of a cationic urethane prepolymer (D) using water or a polyamine compound (E), the cationic urethane prepolymer (D) being formed by neutralized a tertiary amino group by an acid or quaternarized the tertiary amino group by quaternarizing agent, the tertiary amino group being included in a urethane prepolymer comprising, as components thereof, a compound (A) having two or more active hydrogen atoms, an organic polyisocyanate (B), and a chain elongation agent (C) having the tertiary amino group.
TL;DR: In this article, the untreated and alkali-treated bamboo (Bambusa balcooa) fibers were coated with polyethylene glycol-based polyurethane (PU) and its semi-interpenetrating polymer network (SIPN) with polystyrene (PS).
Abstract: The untreated and alkali-treated bamboo (Bambusa balcooa) fibers were coated with polyethylene glycol–based polyurethane (PU) and its semi-interpenetrating polymer network (SIPN) with polystyrene (PS). The tensile strength and chemical resistance were measured on alkali-treated and untreated fibers with or without polymer coating. The PU and PU/PS (50/50) IPN-coated bamboo fibers showed improvement in tensile behavior and chemical resistance.
Patent•
08 Jul 2005
TL;DR: A curable fluoropolyether composition comprises (A) a fluoropolyhedric compound, (B) a perfluoropolyether, (C) an organohydrogen polysiloxane, (D) spherical silica powder, (E) fluorinated trialkoxysilane, and (F) a platinum catalyst as mentioned in this paper.
Abstract: A curable fluoropolyether composition comprises (A) a fluoropolyether compound, (B) a perfluoropolyether, (C) an organohydrogenpolysiloxane, (D) spherical silica powder, (E) a fluorinated trialkoxysilane, and (F) a platinum catalyst. The composition can be heavily loaded with the silica (D).
By virtue of using components (A) and (B) both having a perfluoroether structure in the backbone as the base polymer, the curable fluoropolyether composition cures through heating at a low temperature for a short time into a product having good heat resistance, freeze resistance, oil resistance, solvent resistance, chemical resistance, moisture resistance, and electrical insulation.
Patent•
14 Oct 2005
TL;DR: In this article, a polyamide resin composition is obtained by melting and kneading, which not only has excellent sliding property and mechanical properties such as tensile stretch, but also has excellent productivity and quality for the production of a pellet, and good mold staining resistance during the injection molding.
Abstract: PROBLEM TO BE SOLVED: To provide a polyamide resin composition which not only has an extremely excellent sliding property and mechanical properties such as tensile stretch, and is excellent in other properties such as a low water absorption, heat resistance, and chemical resistance, but also has excellent productivity and quality for the production of a pellet, and good mold staining resistance during the injection molding SOLUTION: The polyamide resin composition is obtained by melting and kneading [A] 100 parts by mass of polyamide resin (I) comprising a dicarboxylic acid unit (a) containing 50-100 mol% of terephthalic acid unit and a diamine unit (b) containing 60-100 mol% of 6-18C aliphatic diamine unit, [B] 5-50 parts by mass of fluororesin (II) which satisfies Ra≤20 and 050≤Ra/Rb≤100 when Ra μm is a 50% particle size of the particles measured by a Microtrack FRA laser type particle size distribution analyzer, Rb μm is a particle size of 90% cumulative undersize particles which pass through a sieve mesh, and has a 1% mass-decreasing temperature of ≥380°C by thermogravimetric analysis (TGA measurement), and [C] 5-100 parts by mass of a fibrous filler and/or a needle-like filler (III) COPYRIGHT: (C)2007,JPO&INPIT
Patent•
[...]
01 Mar 2005
TL;DR: In this article, the main component of a radiation-sensitive resin composition is obtained by reacting an epoxy ester compound, a polyhydric alcohol and a polybasic carboxylic acid or its anhydride.
Abstract: PROBLEM TO BE SOLVED: To provide an alkali-soluble resin composition constituting the main component of a radiation-sensitive resin composition capable of forming a resist film which is excellent in sensitivity, residual film ratio, developability, resolution, adhesion to various kinds of substrates, transparency in the visible light region, thermal discoloration and chemical resistance, particularly has a very high heat resistance and easily forms desired patterns under a variety of curing conditions. SOLUTION: The alkali-soluble resin is obtained by reacting an epoxy ester compound, a polyhydric alcohol and a polybasic carboxylic acid or its anhydride. COPYRIGHT: (C)2006,JPO&NCIPI
Patent•
09 Sep 2005
TL;DR: In this paper, a modified polyimide suitable as a resin component of a composition for an insulating film that undergoes heat treatment to form a cured insulating material is provided.
Abstract: PROBLEM TO BE SOLVED: To provide a modified polyimide suitable as a resin component of a composition for an insulating film that undergoes heat treatment to form a cured insulating film (a protective film) which rarely causes curling (curling resistance), has flexibility, is excellent in heat resistance and soldering resistance, has good adhesion to a wiring pattern, a polyimide film and a sealing material and in addition is excellent in solvent resistance, chemical resistance, bending resistance, electrical properties and the like, to provide a composition for an insulating film using the modified polyimide and an epoxy compound and to provide its cured insulating film and the like. SOLUTION: The modified polyimide resin produced by reacting (a) a diisocyanate compound, (b) one or more kinds of diol compounds including a difunctional hydroxy-terminated polybutadiene and (c) a difunctional hydroxy-terminated imide oligomer is provided. The composition for an insulating film using the modified polyimide and an epoxy compound is provided. The cured insulating film formed from the composition for the insulating film is provided. COPYRIGHT: (C)2006,JPO&NCIPI
Patent•
08 Jul 2005
TL;DR: In this paper, a silicone polymer is obtained by subjecting a silicon compound expressed by general formula (n is 0 or 1; R 1 is Cl, Br, F or H, when n=0, and R 2 is a 1-4C hydrocarbon group, an aromatic hydrocar group, H or carboxy when n = 1; and R 3 is a 3-3C polycarbon group or an aromatic polycondensation reaction
Abstract: PROBLEM TO BE SOLVED: To provide a silica-based film excellent in etching resistance, chemical resistance, and moisture resistance, having good adhesion, and having a low dielectric constant as well, and to provide a silica-based film forming material suitable for forming the silica-based film SOLUTION: This silica-based film forming material contains a silicone polymer which has CHx (x is an integer of 0 to 2), a Si-O-Si bond, a Si-CH 3 bond, and a Si-CHx- bond as a part of a structure thereof The silicone polymer is preferably obtained by subjecting a silicon compound expressed by general formula (1) (n is 0 or 1; R 1 is Cl, Br, F or H, when n=0, and a 1-4C hydrocarbon group, an aromatic hydrocarbon group, H or carboxy, when n=1; and R 2 is a 1-4C hydrocarbon group, an aromatic hydrocarbon group or H), (2) (R 3 is a 1-3C hydrocarbon group or an aromatic hydrocarbon group), or (3) and a silicon compound expressed by general formula (4), (5), (6), or (7) to hydrolytic polycondensation reaction COPYRIGHT: (C)2007,JPO&INPIT
Patent•
08 Feb 2005
TL;DR: In this article, a curable polyphenylene copolymics with high chemical resistance, dielectric properties, heat resistance, flame retardancy and mechanical properties and low water absorption is presented.
Abstract: This invention relates to a curable resin composition which shows excellent chemical resistance, dielectric characteristics, heat resistance, flame retardancy and mechanical properties and low water absorption and is suitable for dielectric materials, insulating materials, heat-resistant materials, structural materials and the like. This curable resin composition comprises component (A) or polyphenylene ether resin and component (B) or a solvent-soluble polyfunctional vinyl aromatic copolymer having constitutional units derived from monomers composed of divinyl aromatic compound (a) and monovinyl aromatic compound (b) or, more particularly, having 20 mol % or more of a repeating unit derived from divinyl aromatic compound (a) and constitutional units represented by the following formulas (2) and (3)
wherein R 5 represents an aromatic hydrocarbon group containing 6-30 carbon atoms, Y represents an aliphatic hydrocarbon group, an aromatic hydrocarbon group or an unsubstituted or substituted aromatic ring condensed with the benzene ring of the indane ring and n is an integer of 0-4.
Patent•
17 Aug 2005
TL;DR: In this paper, a surface-covered metallic material is obtained by the processing with the surface processing agent by mixing a water dispersible urethane resin (a) having the glass transition temperature exceeding 50°C and the minimum film forming temperature of ≤40°C, at least one kind of organic compounds (B) selected among methylol phenol and its condensate, a carbodiimide resin, an epoxy resin, a silane coupling agent, organic phosphonic acids and their partial alkali metal salt/ammonium salt/alkylester,
Abstract: PROBLEM TO BE SOLVED: To provide an aqueous surface processing agent for a metallic material, and a surface-covered metallic material capable of foming a film excellent in corrosion resistance, formability, chemical resistance and moisture resistance. SOLUTION: The aqueous surface processing agent for a metallic material is obtained by mixing a water dispersible urethane resin (A) having the glass transition temperature exceeding 50°C and the minimum film forming temperature of ≤40°C, at least one kind of organic compounds (B) selected among methylol phenol and its condensate, a carbodiimide resin, an epoxy resin, a silane coupling agent, organic phosphonic acids and their partial alkali metal salt/ammonium salt/alkylester, organic phosphinic acids, phosphoric ester of polyol, amine compound, isocyanate compound, aldehyde compound, carbonic acid, amino resin, and urethane pre-polymer protecting isocyanate group by adding alkali metal salt bisulphite to isocyanate group, and a zirconium compound (C) in water. A surface-covered metallic material is obtained by the processing with the surface processing agent. COPYRIGHT: (C)2007,JPO&INPIT
Patent•
30 Dec 2005TL;DR: In this article, a heat-resistant ABS thermoplastic resin composition including a graft ABS polymer, an α-methylstyrene copolymer, an imide-substituted copolymers, and an additive for improving elongation and impact strength is provided.
Abstract: Thermoplastic resin compositions are provided. A heat-resistant ABS thermoplastic resin composition including a graft ABS polymer, an α-methylstyrene copolymer, an imide-substituted copolymer, and an additive for improving elongation and impact strength is excellent in weld strength, chemical resistance, impact strength, and elongation. A thermoplastic resin composition including a graft ABS polymer, a α- methylstyrene copolymer, and an additive for improving wettability is excellent in weld strength and wettability.
Patent•
23 Jun 2005
TL;DR: In this article, the polyamide-imide-based porous film with high chemical resistance consists of a polyamideimide based resin-based material, having numerous open micropores with a mean size of 0.01-10μm.
Abstract: PROBLEM TO BE SOLVED: To provide a porous film excellent in chemical resistance and having uniform micropores, and to provide a method for easily producing the same. SOLUTION: The polyamide-imide-based porous film with high chemical resistance consists of a polyamide-imide-based resin-based material, having numerous open micropores with a mean size of 0.01-10μm. The maximum dimensional change percentage d b (%) of this porous film when immersed in tetrahydrofuran is within ±10%. The porous film includes a porous film obtained by heat treatment of the above porous film. COPYRIGHT: (C)2005,JPO&NCIPI
Patent•
22 Mar 2005
TL;DR: In this article, a silicon-modified acrylic resin is applied to the surface of the metal, ceramics, glass, cement, plastics, an electrodeposition coated plate or the like, and an inorganic coating composition is subsequently applied to obtain the coated article, which is excellent in heat resistance, abrasion resistance, chemical resistance, weatherability, etc., and further excellent in adhesion and water resistance.
Abstract: PROBLEM TO BE SOLVED: To provide a coated article, which is excellent in heat resistance, abrasion resistance, chemical resistance, weatherability, etc., and further excellent in adhesion and water resistance, on the surface of a metal, ceramics, glass, cement, plastics, an electrodeposition coated plate or the like. SOLUTION: After a silicon-modified acrylic resin is applied to the surface of the metal, ceramics, glass, cement, plastics, an electrodeposition coated plate or the like, an inorganic coating composition is subsequently applied to the coated surface to obtain the coated article, which is excellent in heat resistance, abrasion resistance, chemical resistance, weatherability, etc., and further excellent in adhesion and water resistance. COPYRIGHT: (C)2007,JPO&INPIT
TL;DR: In this article, the polyethylene glycol (PEG) based polyurethane (PU) and polyurethene-polyacrylonitrile (PU/PAN) semi-interpenetrating polymer networks (SIPNs) have been coated on the surface of alkali-treated and untreated bamboo fibers (Bambusa balcooa).
Abstract: The polyethylene glycol (PEG) based polyurethane (PU) and polyurethane-polyacrylonitrile (PU/PAN) semi-interpenetrating polymer networks (SIPNs) have been coated on the surface of alkali-treated and untreated bamboo fibers (Bambusa balcooa). The chemical resistance and tensile load at break of bamboo fibers before and after coating with SIPNs have been studied. It is observed that the tensile load at break and chemical resistance of bamboo fibers have increased on coating.