Showing papers on "Chemical resistance published in 1990"

Vessel for aerosol

Abstract: A vessel (1) according to the invention has a double-layer structure in which a vessel wall is constructed so as to have an inner layer (1 b) made of a special high-nitrile resin having excellent chemical resistance, gas barrier properties and the like; and an outer layer (1 a) made of a synthetic resin having excellent heat resistance, shock resistance, and the like. The vessel is suitable for use as a vessel for aerosol.

Water-based composites with superior cure in thick films, and chemical and shock resistance

Abstract: A coating composition is used for coating or overlaying Portland cement concrete or metal. The composition includes a synthetic polymer latex, an amine-functional epoxy curing agent, an epoxy-functional or amine-functional silane, a liquid epoxy resin, and a filler having a fine particle size. The coating composition has superior crack resistance and low cost in comparison with epoxy/amine-type polymer concrete, and excellent strength development, chemical resistance, and rapid cure in thick films in comparison with latex-based cementitious compositions. The coating composition can be mixed from a pair of storage-stable components; a dry mix including the fine particle size filler and the epoxy resin, and optionally larger size aggregate, and a wet mix including the polymer latex, the silane, and the amine curing agent. The two components can be mixed on site to give a fluid coating composition having a long pot life and low viscosity, which rapidly develops strength, and ultimately develops high compressive strength, thermal shock resistance, and resistance to chemical attack, especially attack by aqueous acids.

Polymer-modified cements with improved chemical resistance

Abstract: A coating composition is used for coating or overlaying Portland cement concrete or metal The composition includes a synthetic polymer latex having ureido functional groups, an amine-functional epoxy curing agent, a liquid epoxy resin, and a hydraulic cement The coating composition has superior thermal shock resistance and low cost in comparison with epoxy/amine-type polymer concrete, and excellent strength development and chemical resistance in comparison with conventional latex-based cementitious compositions The coating composition can be mixed from a pair of storage-stable components; a dry mix including the hydraulic cement and the epoxy resin, and optionally larger size aggregate, and a wet mix including the polymer latex and the amine curing agent The two components can be mixed on site to give a fluid coating composition having a good pot life and low viscosity, which rapidly develops strength, and ultimately develops high compressive strength, thermal shock resistance, and resistance to chemical attack, especially attack by aqueous acids

Styrene-based plastics and their modification

Abstract: Polystrene modification of chemical resistance modification of impact properties - of average density and thermoinsulating properties - of durability - of flammability - of electrical conductivity - of rheological properties - of strength characteristics - of heat resistance

Blow hollow molded product

Abstract: PURPOSE:To impart excellent heat resistance, chemical resistance and impact resistance by constituting a resin composition of a PPS resin to which deionizing treatment is applied and an epoxy group-containing olefinic copolymer in a specific wt. ratio. CONSTITUTION:A PPS resin composition prepared by adding 0 - 200pts.wt. of an inorg. filler to 100pts.wt. of a resin component consisting of 95 - 60wt.% of a polyphenylene sulfide (PPS) resin to which deionizing treatment is applied and 5 - 40wt.% of an epoxy group-containing olefinic copolymer is used as a main constituent. The PPS resin to which no deionizing treatment is applied is inferior to the compatibulity with epoxy group-containing polyolefin and appearance inferiority or the marked lowering of impact resistance is generated. When the compounding amount of the PPS resin is 95wt.% or more, below moldability is lowered and, when said compounding amount is 60wt.% or less, heat resistance or chemical resistance is damaged. When a fibrous and/or granular inorg. reinforcing agent is compounded with 100pts.wt. of the PPS resin and the epoxy group-containing olefinic copolymer in total within the range not exceeding 200pts.wt., strength, rigidity, heat resistance or dimensional stability can be enhanced.

Curable polyphenylene ether-based resin composition

Abstract: PURPOSE: To obtain the subject composition capable of producing a cured material excellent in chemical resistance, dielectric properties, etc., and suitable for an dielectric material, an insulating material, etc., by blending a polyphenylene ether resin containing unsaturated groups with trially (iso)cyanate and a styrene-based thermoplastic resin, etc. CONSTITUTION: (A) A polyphenylene ether resin containing unsaturated groups in an amount of 98-40 pts.wt. based on 100 pts.wt. total amount of (A) and (B) is blended with (B) a triisocyanurate and/or trially cyanurate in an amount of 2-60 pts.wt. based on 100 pts.wt. total amount of (A) and (B) and (C) a styrene-based thermoplastic resin and/or polybutadiene rubber in an amount of 10-90 pts.wt. based on 100 pts.wt. total amount of (A), (B), (C). The above- mentioned composition is excellently used in a form of a film and a cured composite material can be obtained from the above-mentioned composition and a base material. In addition, a laminated material (plate) can be obtained by combining a metal foil and/or a metal base therewith. COPYRIGHT: (C)1992,JPO&Japio

Epoxy compound, precursor thereof, production processes thereof, use of the precursor and cured product of the epoxy compound

Abstract: There is provided a novolak-type hydroxycarboxylic acid or an ester thereof, an epoxy compound produced therefrom, a composite material comprising a matrix resin of the cured product and a reinforcing material, and a process for the production of the epoxy compound. The epoxy compound produces a cured product having excellent water resistance, heat resistance, chemical resistance, mechanical properties, dimensional stability and electrical properties.

Chlorinated vinyl chloride resin composition

Abstract: PURPOSE:To obtain the title composition having very excellent impact strength and moldability in addition to excellent heat resistance and chemical resistance by mixing a specified chlorinated vinyl chloride resin mixture with an impact resistance modifier CONSTITUTION:100 ptswt chlorinated vinyl chloride resin mixture (A) comprising 50-100wt% at least two chlorinated vinyl chloride resins (a) having different chlorine contents each of which is 605-68wt%, 0-15wt% chlorinated vinyl chloride resin (b) of a chlorine content >68wt% and 0-50wt% chlorinated vinyl chloride resin and/or vinyl chloride resin (c) of a chlorine content <605wt% is mixed with 2-20 ptswt impact resistance modifier (B) (eg, MBS resin or a multicomponent acrylic rubber resin) The title composition having very excellent impact resistance and moldability in addition to excellent heat resistance and chemical resistance can be obtained

Floor coating material and its production

Abstract: PURPOSE:To obtain a floor coating material having excellent chemical resistance, workability, shock loading resistance, etc., by previously blending a mixture of dispersing agent and carbon fibers with a resin or further aggregate and mixing the blend with resin mortar or resin concrete. CONSTITUTION:Resin mortar or resin concrete is blended with <=10wt.% based on the resin of carbon fibers having <=10mm fiber length. Consequently, a floor coating material having excellent chemical resistance, extremely rapidly hardening properties and low-temperature workability, strength to repeated shock loading and low heat generation and small amount of shrinkage during hardening is obtained. The floor coating material can be produced by previously blending a dispersing material with the carbon fibers and mixing the blend with a resin or further aggregate in blending of resin motor or resin concrete with the components.

Improving method for chemical resistance of anodic oxide film

Abstract: The invention concerns methods of improving the chemical resistance of porous anodic aluminium oxide membranes such as are used for filters. The membranes may simply be heated to temperatures above 650 C, typically 850 - 1250 C. Or a sol or solution of a metal compound in a volatile liquid may be applied to the membrane and decomposed to form a metal oxide coating on interior and exterior surfaces thereof, the coated membrane being heated to at least 100 C, preferably 250 - 650 C. Preferred coatings are oxides of Ta, Nb, Ti and Zr.

High surface hardness transparent resin prepared from a compound having terminal isopropenyl phenyl groups

Abstract: The present invention relates to a transparent resin which has a high surface hardness and which is excellent in scratch resistance, heat resistance and chemical resistance, a glazing material, a protective cover for display devices, an optical lens and a hard coat material comprising the above-mentioned resin, and a novel polymerizable monomer represented by the formula (I) useful as a raw material for the high surface hardness transparent resin. ##STR1## wherein R is an aliphatic residue having or not having an oxygen atom, an alicyclic ring, a heterocyclic ring or an aromatic ring, or an alicyclic residue, l is 0 or 1, each of i and j is an integer of 1 or more, and when l=0, i=j=1, when l=1, (i+j) is 4 or less, when j=1, X is oxygen or sulfur, when j≧2, all X's are oxygen or sulfur, or one X is oxygen and the other X's are sulfur, or one X is sulfur and the other X's are oxygen. The high surface hardness transparent resin comprises a crosslinked polymer prepared by copolymerizing a monomer (A) represented by the formula (I) as above and a monomer (B) containing one or more functional groups of at least one kind selected from the group consisting of CH2 ═CH--C(O)--O--, CH2 ═C(CH3)--C(O)--O-- and t,20

Multilayered structures comprising polycarbonate layers and functionalized polyamide layer

Abstract: Multilayered structures comprising polycarbonate layers and functionalized polyamide layers exhibit adhesion to each other without the use of a tie layer. The multilayered structures are useful in containers requiring the combined properties of high impact strength and chemical resistance and/or oxygen barrier resistance.

Colored-ceramic coated steel plate and manufacture thereof

Abstract: PURPOSE:To ensure decorative coloring and functionality without damaging the matrix of a surface-treated steel-plate by executing the same surface treatment as normal coating pretreatment onto the metallic material, applying a ceramic coating agent having a specific composition and heating and curing the metallic material at a low temperature. CONSTITUTION:The same formation treatment as normal coating pretreatment is executed onto a surface-treated steel plate (hot dipping, electroplating) and an Fe, SUS, Al, Cu, Mg or Ti plate, and a ceramic coating agent is applied and baked. A substance mainly comprising an alkali silicate and ultrafine silica is used as the ceramic coating agent at that time, and 150-300 deg.C are favorable as a baking temperature. Accordingly, ceramic coating having substantially all decorative coloring and functionality (a hard film, hydrophilic properties, fingerprint resistance, heat resistance, corrosion resistance, chemical resistance, weather resistance, release properties, stain resistance, abrasion resistance, insulating properties and workability) except plastics and wood is enabled.

Curable polyphenylene ether resin composition and composite material and laminated material using the same composition

Abstract: PURPOSE: To obtain the subject composition excellent in dielectric properties, chemical resistance, heat resistance, etc., and suitable for the field of electric industries, space and aircraft industries, etc., by blending an unsaturated group- containing polyphenylene ether resin with a triallyl isocyanurate, etc., in a specified ratio. CONSTITUTION: (A) A polyphenylene ether resin containing unsaturated groups is blended with (B) triallyl isocyanurate and (C) an inorganic filler so that (A) and (B) may be 98-40 pts.wt. and 2-60 pts.wt. respectively based on 100 pts.wt. (A)+(B) and so that (A)+(B) and (C) may be 99-10 pts.wt. and 1-90 pts.wt. respectively based on 100 pts.wt. total quantity of (A)-(C). (D) A base material is further blended therewith in a ratio of 5-90 pts.wt. based on 100 pts.wt. total quantity of (A)-(D) to obtain a curable composite material. The resultant composite material is combined with a metal foil and/or a metal base to obtain a laminated material and a laminated plate. COPYRIGHT: (C)1992,JPO&Japio

Flame-retardant resin composition

Abstract: PURPOSE:To provide a resin composition retaining excellent dielectric characteristics and having excellent chemical resistance, heat resistance and flame resistance by compounding a curable polyphenylene oxide resin substituted with allyl group and/or propargyl groups with a flame retardant. CONSTITUTION:A composition comprises (A) 100pts.wt. of a curable polyphenylene oxide substantially composed of a polymer of formula I [m is 1 or 2; J' is a polyphenylene oxide chain containing units of formula II (R1 to R4 are H, allyl or propargyl and at least one of R1 to R4 is not H); Q is H when m is 1, or Q is the residue of a difunctional phenol compound having two phenolic OH groups in the molecule and polymerization-inactive substituents at the ortho and para positions of the OH group, etc., when m is 2] and having an average substitution degree of allyl groups and/or propargyl groups defined by an equation III is an amount of 0.1-100mol%, or a resin composition consisting of 98-40wt.% of the curable polyphenylene oxide and 2-60wt.% of triallyl (iso)cyanurate and (B) 1-50pts.wt. of a flame retardant selected from phosphate, chloride and bromide flame retardants.

Radiation-curable covering composition, solder resist, and plated resist

Abstract: PURPOSE:To improve the adhesiveness to copper, moisture resistance, water resistance, chemical resistance, heat resistance, etc., by incorporating a phosphate having unsaturated groups and a talc having a surface treated with a silane having unsaturated groups into a radical-polymerizable prepolymer. CONSTITUTION:A radiation-curable covering composition is obtained by mixing 100 pts.wt. talc (A) (having a mean particle diameter of 5mum or smaller, preferably 1.5-3.5mum) having s surface treated with a silane coupling agent having ethylenically unsaturated double bonds (e.g., methacryloxymethyltrimethoxysilane); 2-80 pts.wt., preferably 5-30 pts.wt., phosphate (B) having one or two ethylenically unsaturated double bonds in the molecule (e.g. bisacryloyloxyethyl phosphate); 20-200 pts.wt., preferably 50-100 pts.wt., radical-polymerizable monomer (C) (e.g., dipentaerithritol hexaacrylate or N-vinylpyrrolidone); and 20-200 pts.wt., preferably 50-100 pts.wt., radical- polymerizable prepolymer (D) (e.g., a bisphenol A epoxy acrylate).

Fluorine-containing aromatic compound

Abstract: NEW MATERIAL:Fluorine-containing aromatic compounds represented by formula I (R is H or CH3; Y is CO or CH2). EXAMPLE:1,1,1,3,3,3-Hexafluoro-2-methacryloyloxy-2-phenyl-propane. USE:A raw material of a novel substance having excellent functions such as higher heat resistance, chemical resistance, weather resistance, low frictional properties, water and oil repellency, low refractive index, transparency and oxygen permeability, or a fluorinating agent capable of conversion to another fluorine-containing compound in itself. PREPARATION:A compound of formula II is reacted with a compound of formula III (X is halogen) to readily obtain a compound of formula I. In addition various useful polymers of a fluorine-containing bisphenol derivative is readily prepared by homopolymerization of the resultant compound or by copolymerization thereof with various monomers having a polymerizable olefinic double bond, e.g., using the radical polymerization method.

Liquid epoxy resin composition and its cured product

Abstract: PURPOSE: To obtain the title composition which can give a cured product for sealing excellent in heat resistance, humidity resistance, chemical resistance and cracking resistance in a heat cycle by compounding a specified epoxy resin, an acid anhydride curing agent and a cure accelerator. CONSTITUTION: The title composition comprises an epoxy resin comprising 50-90wt.% at least either of epoxy resins of formulas I and II (wherein W, X, Y and Z are each H, 1-4C alkyl, Cl or Br) and 10-50wt.% bisphenol A epoxy resin of an epoxy equivalent of 1800-3000, an acid anhydride curing agent (e.g. methylhexahydrophthalic anhydride) and a cure accelerator {e.g. 2,4- diamino-6-[2'-undecylimidazole(1)]-ethyl-s-triazine}. COPYRIGHT: (C)1992,JPO&Japio

Resistance of epoxy resins cured with trichloro-tridimethylamino-cyclotriphosphazene against chemical substances.

Abstract: In the preceding paper, epoxy resins (EPIKOTE828 and 154) were cured with 1, 3, 5-trichloro-1, 3, 5-tridimethylamino-cyclotriphosphazene (C13). These epoxy resins exhibited high Young's modulus (30°C-Tg) and high elongation (around Tg) in tensile tests, and high weight remaining (500-700°C) in thermo-gravimetric analysis. In this paper, the chemical resistance of the epoxy resin cured with C13 has been investigated. As for the dimensional stability, the cured EPIKOTE828 was severely damaged by the immersion in H2O 60°C and 36% aqueous solution of HCl 25°C. For the cured EPIKOTE154, the change of dimension was 2.9-7.4% after the immersion in H2O 60°C and 0.2-1.2% in 36% HCl 25°C. Both of the cured EPIKOTE828 and 154 were rather stable in 38% aqueous solution of NaOH 25°C and 60°C, and the dimensional change was below 1%. In the vibron measurement of the cured EPIKOTE828, E' decreased remarkably by the immersion in H2O 60°C and the peak temperatures of E" were observed at 90°C and 140°C. The degradation by 38% NaOH was larger for EPIKOTE828 than for EPIKOTE154, and was larger at 60°C than at 25°C. In the torsion pendulum measurement, the cured EPIKOTE154 immersed in H2O 60°C showed almost the same rigidity as before immersion at the temperature range above 150°C. In conclusion, the epoxy resin cured with C13 is degradated by acid and is resistant to alkali.

Fiber sheet-like article having excellent heat resistance and chemical resistance

Abstract: PURPOSE: To obtain a sheet-like article having excellent heat resistance and chemical resistance by combining a sheet-like article consisting of a fiber having a recurring unit of paraphenylene sulfone with a binder having specific characteristics. CONSTITUTION: A binder unmelting or being ≥300°C in melting point and having heat resistance and chemical resistance, e.g. a resin consisting of polyparaphenylene sulfone expressed by the formula [X is 0-2 and the ratio of recurring unit in which X is 2 is ≥70% (sulfonated ratio)] is applied to a fiber, e.g. nonwoven fabric (or woven fabric) consisting of polyparaphenylene sulfone expressed by the above-mentioned formula and the resin-coated fiber is thermally cured to provide the objective fiber sheet-like article having excellent heat resistance, and chemical resistance. Furthermore, when the binder is polyimide, the sheet-like article having extremely excellent heat resistance is obtained and when the binder is tetrafluoroethylene resin, the sheet-like article having excellent chemical resistance as well as excellent water repellency and oil repellency is obtained. COPYRIGHT: (C)1991,JPO&Japio

Radio wave absorbing material and manufacture thereof

Abstract: PURPOSE:To make it possible to obtain radio wave absorbing material having heat resistance, weather resistance, chemical resistance by combining carbon with the surface of a base material made of porous ceramics and the inside of the structure. CONSTITUTION:One kind or two kinds or more among natural ceramic material, mineral and clay mineral, and artificial ceramic material are burnt at the specified temperature together with pore forming material or burning-out material to form a framework and are sintered into porous ceramics in the form of plate, block, powder, or grain, or in the desired form. And by introducing hydrocarbon compound which is in gas form or mist form when the inside of a furnace is uniform at the specified temperature into the furnace so as to reduce and burn the porous ceramics inside the furnace in the reductive atmosphere, carbon is combined with the surface of the base material made of porous ceramics as base material and the inside of the structure. Hereby, one which is a light structure type radio wave absorbing body and is excellent in heat resistance, chemical resistance, corrosion resistance, abrasion resistance can be obtained.

Production of crosslinked polyvinylidene fluoride

Abstract: PURPOSE:To obtain the title substance having a high degree of crosslinking, excellent heat resistance, water resistance, chemical resistance, etc., and being crosslinked deep into the inside by grafting a specified silane compound onto polyvinylidene fluoride and bringing the obtained product into contact with water or an aqueous medium. CONSTITUTION:A silane compound of the formula [wherein R is a vinylic group; R' is an (alkoxy)alkoxylated group; and x is 1-3], e.g., vinyltris(beta-methoxyethoxy) silane, is grafted onto polyvinylidene fluoride in the presence of a free radical generator [e.g., 1,3-bis(t-butylperoxyisopropyl)benzene], and the product is brought into contact with water or an aqueous medium in the presence of a silanol condensation catalyst.

Curable nitrogenous alkyd resin coating material

Abstract: PURPOSE:To obtain the title material improved in adhesion of coating film, corrosion resistance, chemical resistance, flexibility, etc., by using a specified nitrogenous alkyd resin as a vehicle component. CONSTITUTION:An amine compound having at least two, on the average, active hydrogen atoms and not containing two or more hydroxyl groups in the molecule, of formula I or II (wherein R1-6 are each H, an alkyl, an aryl or a cycloalkyl; n is 1-4; m is 0-4, when m is 0, at least two of R1-4 are each H, and any one of R5-6 is H; and when m is 1, at least one of R1-4 is H) is reacted with a polybasic acid (e.g., phthalic acid) and, optionally, a fatty acid (e.g., linseed oil fatty acid) at 150-250 deg.C for 1-15hr to obtain a nitrogenous alkyd resin of a hydroxyl value of 30-200. This resin is dissolved or dispersed in an organic solvent and/or water.

Fluorine-containing phenolic resin

Abstract: PURPOSE:To obtain the subject resin having excellent water and oil repellency, non-adhesiveness (stain resistance), chemical resistance, heat-resistance, slipperiness in chemical (sliding property), etc., by substituting at least a part of phenolic OH with a fluorine-containing ether substituent. CONSTITUTION:The objective resin comprises a substrate phenolic resin (preferably particulate phenolic resin having an average particle diameter of <=500mum) wherein at least a part of the phenolic OH is substituted with a fluorine- containing ether substituent of formula I. The resin can be produced by reacting a substrate phenolic resin with hexafluoropropene of formula II in the presence of a basic catalyst.

Thermoplastic molding compositions

Abstract: Compositions comprising polyetherester resins, polyetherimide ester resins, alone or combined with polyester resins, and mixtures of any of them or of polyester resins alone with copolymers of alpha-olefins and vinyl esters of aliphatic monocarboxylic acids have improved elastomeric character. For example, addition of 50 and 30 parts by weight of a vinyl acetate-ethylene copolymer having a high content of units derived from vinyl acetate to a polyetherimide ester copolymer considerably improves compressibility, elasticity, low temperature impact strength, UV light resistance and chemical resistance. Articles shaped from such compositions show desirably lower hardness, improved dynamic fatigue properties, paintability, extrudability and injection moldability.

Reinforced thermoplastic resin composition

Abstract: PURPOSE:To obtain a reinforced resin composition having excellent compatibility, heat distortion resistance, rigidity, chemical resistance and impact resistance containing a polyamide resin, unsaturated carboxylic acid-containing copolymer, rubber-containing graft copolymer and glass fibers. CONSTITUTION:100pts.wt. total amouints of (A) 5-90pts.wt. polyamide resin, (B) 5-90pts.wt., preferably 50-80pts.wt. unsaturated carboxylic acid-containing copolymer, preferably copolymer prepared by copolymerizing 40-80wt.% aromatic vinyl compound with 15-50wt.% vinyl cyanide compound, 0.5-40pts.wt. unsaturated carboxylic acid compouind and 0-30pts.wt. vinyl compound (e.g. methyl methacrylate) copolymerizable with these monomers and (C) 5-60pts.wt., preferably 20-50pts.wt. graft copolymer prepared by grafting 95-5wt.% vinyl compound in the presence of 5-95wt.% diene-based rubber are blended with (D) 2-50pts.wt. glass fibers.

Copper powder for electroconductive coating compound and electroconductive coating compound composition

Abstract: PURPOSE:To obtain copper powder for electroconductive coating compound having improved storage stability and chemical resistance without lowering electroconductivity and shielding effects on electromagnetic wave by coating the surface of copper powder with a specific complex organometallic compound having a main chain consisting of a specific repeating unit. CONSTITUTION:The surface of copper powder is coated with a complex organometallic compound having a main chain consisting of a repeating unit shown by the formula (M and M are metallic atom comprising Ti, Si, Zr, Al, Ca, Li, Fe, Ge, Sr, In, Ba, Ta, Bi, Mg or Na) to give the aimed copper powder. The metallic atom of the main chain preferably has one or more readily hydrolyzable hydrophobic group and one or more slightly hydrolyzable hydrophobic group.

Polyvinylidene fluoride composition

Abstract: PURPOSE:To obtain the title composition which can give a molding having a decreased coefficient of thermal expansion and excellent mechanical properties by mixing polyvinylidene fluoride with a specified aromatic polyamide. CONSTITUTION:70-99.8 pts.wt. polyvinylidene fluoride (A) is mixed with 30-0.2 pts.wt. polymethyl methacrylategrafted aromatic polyamide (B) (desirably, an aromatic polyamide comprising a graft structural unit of formula I, a diamine structural unit of formula II and at least either of a dicarboxylic acid structural unit of formula III and an aminocarboxylic acid structural unit of formula IV. In the formulas, R, R and R are each an aromatic group, and n=10-200. This composition can give a molding having highly decreased coefficient of thermal expansion, and excellent mechanical properties without detrimental to the features of inherent in component A, such as weathering resistance, chemical resistance, abrasion resistance and stain resistance, and therefore it is applicable to plant members used in the presence of strong acids or solvents such as pipes, tubes and valves; machine parts such as bearings; and wire coat ing materials and electronic components requiring a dimensional accuracy.

Production of decorative sheet used for furniture

Abstract: PURPOSE:To improve quality such as surface hardness, gloss, heat resistance, and chemical resistance by adhering a decorative sheet made of a vinyl chloride resin to the surface of a raw material and coating a primer therein, then coating any of a polyester resin, enamel resin, polyurethane resin or lacquer resin thereon, polishing the coated surface and subjecting the surface to UV painting. CONSTITUTION:The decorative sheet made of the vinyl chloride resin which is compounded with a plasticizer at a slightly smaller ratio and is formed with arbitrary patterns on the surface is adhered to the surface of the raw material and the primer is spray-coated on the sheet surface in order to prevent the exfoliation of a polyester resin, etc., and to improve the adhesive property. Either of the polyester resin, enamel resin, polyurethane resin or lacquer resin is coated thereon in 2-3 layers upon drying of the primer and the surface is polished by sandpaper. The surface is thereafter subjected to UV painting; namely, a UV curing type paint is used and coated on the surface, then the surface is irradiated with UV rays by a UV lamp to dry and cure the paint by the photopolymn. effect among the photochemical effects thereof, by which the aesthetic gloss analogous to the gloss of Japanese lacquer coating is exhibited.

Environment-resistant cable

Abstract: PURPOSE:To improve the oil resistance or the like by bringing the surface of a rubber/plastic film on the outermost layer of a cable into contact with the fluorine gas atmosphere to fluoridize it. CONSTITUTION:A CV cable obtained by assembling three cross-linking polyethylene insulated cores 1 and providing a winding layer 2 made of a presser tape and a vinyl chloride resin sheath 3 on it in sequence is stored in an airtight container, the surface of the film is exposed to the fluorine gas atmosphere at the ordinary temperature and the ordinary pressure. Hydrogen atoms with a hydrogen carbide skeleton are substituted with fluorine atoms on the surface of the rubber/plastic film of the cable due to the contact with the high- concentration fluorine gas, a fluoride with the excellent chemical characteristics such as oil resistance and chemical resistance is generated. The oil resistance, chemical resistance, and watertightness are improved.