Showing papers on "Plastomer published in 2015"

Optimum Blending Requirements for EVA Modified Binder

Abstract: Increase in traffic, new axle configurations and high temperature demands the use of modified binders for resisting the stresses induced in pavement. Ethylene Vinyl Acetate (EVA) is a plastomer, which is a copolymer obtained by copolymerization of ethylene and vinyl acetate. Though a potential modifier, problems of phase separation have been encountered attributable to the presence two separate phases of bitumen and polymer which are incompatible with each other. This paper focuses on obtaining the optimum blending requirement for EVA copolymer. A VG 10 binder was modified at varying percentages of EVA from 1 to 7%. Modification was carried out at different combination of mixing temperature, blending time and shear rate and a total of 80 combinations were obtained. Statistical package for social sciences (SPSS) and SOLVER function was used to assess the optimum blending requirement. Further the paper evaluated the optimum modifier content for obtaining a homogenous blend which could be stable at high temperature. Physical and rheological properties of the modified binder was also evaluated and compared with the base binder. It was found that temperature is the most critical parameter for EVA modification. Shear rate had the minimum influence over obtaining a storage stable blend. Fluorescence microscopy showed change in morphology as the modifier content increased, which could be used to assess the optimum modifier content for modification. Rheological response of the modified binder significantly improved. EVA modification was found to be best suited at high temperatures and could be very effective to resist rutting of mixtures.

Automotive material with excellent flow, high stiffness, excellent ductility and low coefficient of linear thermal expansion

Abstract: Composition having a melt flow rate MFR 2 (230 °C) in the range of 10 to 50 g/10min. said composition comprises two heterophasic polypropylenes comprising a propylene homopolymer matrix and an elastomeric copolymer. a plastomer and a mineral filler. wherein - said two heterophasic polypropylenes have different melt flow rates. - the first heterophasic polypropylene has a melt flow rate MFR 2 (230 °C) in the range of 3.0 to 30.0 g/10min and - the second heterophasic polypropylene has a xylene cold soluble (XCS) content in the range of 7.0 to 20.0 wt.-%.

Polypropylene films with improved printability

Abstract: The patent application discloses a polypropylene-plastomer-blend comprising ethylene-based plastomer,which –after conversion into final articles and exposing to surface modification like corona treatment, shows improved dyne retention behaviour and improved dyne retention ratio over time. Further disclosed are final articles and a process how to provide compositions and final articles having improved dyne retention behaviour.

Recyclable artificial turf and preparation method thereof

Abstract: The invention discloses recyclable artificial turf. An adhesive comprises, in parts by mass, 30-40 parts of a styrene-acrylic emulsion, 5-10 parts of filler, 0.5-0.8 parts of an antifoaming agent, 0.5-1 part of a thickening agent, 0.3-0.6 parts of a dispersing agent, 15-50 parts of an ethylene-vinyl acetate copolymer, 20-80 parts of a propene-ethylene copolymer, 20-80 parts of a polyolefin plastomer and 5-30 parts of an amorphous alpha-olefin copolymer. The non-woven fabric adhesive for the recyclable artificial turf and a preparation method of the adhesive are designed, the recyclable artificial turf is acid-resistant, base-resistant and corrosion-resistant, the aging-resistant life is longer than 8 years, the withdrawal force is larger than 40 N, and the artificial turf can be completely recycled through cleaning, crushing and extrusion granulation after being used for 8-10 years.

Space frame radome comprising a polymeric sheet

Abstract: The invention relates to a space frame radome comprising a sheet, said sheet comprising high strength polymeric fibers and a plastomer, wherein said plastomer is a copolymer of ethylene or propylene and one or more C2 to C12 alpha- olefin co-monomers and wherein said plastomer has a density as measured according to ISO1183 of between 860 and 940 kg/m 3 and wherein the sheet has an areal density that is with at most 500% higher than the areal density of the high strength polymeric fibers.

Polymer compositions and extrusion coated articles

Abstract: The present invention relates to a polymer composition (A) comprising a blend of i) 60 to 90 wt-% of propylene polymer composition (a) comprising a blend of (a-1) 55 to 95 wt-% of propylene polymer and (a-2) 5 to 45 wt-% of low density ethylene polymer and ii) 10 to 40 wt- % of a plastomer (b) of ethylene copolymer. The invention relates also to extrusion coating articles, comprising at least a substrate layer and a heat sealable layer, wherein composition (A) is used as said heat sealable layer, process for producing the extrusion coated articles as well use of the composition (A) as a heat sealable layer in an extrusion coated article.

Low temperature labeling construction hot melt adhesive and preparation method thereof

Abstract: The invention discloses a low temperature labeling construction hot melt adhesive and a preparation method thereof The low temperature labeling construction hot melt adhesive comprises the following components in parts by weight: 30-60 parts of polyolefin plastomer, 10-30 parts of metallocene polypropylene, 20-40 parts of petroleum resin and 03-05 part of an anti-aging agent The low temperature labeling construction hot melt adhesive is made from environment-friendly materials, and has no peculiar smell; the appetency with an OPP film, a pearl film and a paper-plastic composite film and a paper label is strong, and thus the bonding strength is better; low temperature construction at 120-130 DEG C can be performed, the construction work is smooth enough to generate no wire drawing, and the cold resistance and heat resistance are very good; the curing time is shorter, the coordination with automatic labeling equipment is better, and thus the working efficiency is higher; no aging is produced, no carbonization is produced to block a spray head, and thus spraying equipment is better protected

Multilayer film for packaging welding rod

Abstract: The invention discloses a multilayer film for packaging a welding rod The multilayer film comprises a surface layer, an intermediate layer and a heat-seal layer, wherein the surface layer and the heat-seal layer are adhered to the intermediate layer through a bonding layer; the surface layer comprises 70wt% of aliphatic polyester resin and 30wt% of glycerin fatty acid ester; the heat-seal layer comprises ultra low density polyethylene, and one or more than one of reinforced medium density polyethylene, linear low density polyethylene, low density polyethylene, ethylene alpha-olefin plastomer copolymer, metallocene polyethylene and ethylene-vinyl acetate copolymer; the intermediate layer comprises ethylene-alpha olefin copolymer The surface roughness of the film is in the range from 02nm to 35nm, the temperature range is from -40 to 130 degrees centigrade, and the tensile modulus is in the range from 500 to 1600MPa The multilayer shrink film is wider in heat-seal temperature range and better in mechanical and optical performances

All-purpose gripper with magneto-rheological plastomer

Abstract: The utility model relates to an all-purpose gripper with a magneto-rheological plastomer. The gripper comprises a U-shaped supporting frame, a coil wound around the middle of the supporting frame, a partition plate arranged in the middle of the supporting frame, an interlayer formed between the partition plate and the coil as well as between the partition plate and the U-shaped supporting frame, a rubber jacket arranged outside in a close wrapping mode, and the high-performance magneto-rheological plastomer arranged between the U-shaped supporting frame and the rubber jacket in a filling mode, wherein a rechargeable battery and a circuit control circuit are placed in the interlayer. According to the all-purpose gripper, the grab strength can be adjusted, the shape of the gripper can be changed so that the gripper can be better attached to the surface of an article, meanwhile, the overall structure is simple, and manufacturing cost is low.

Hot Melt Adhesive Composition

Abstract: The present disclosure provides a composition. In an embodiment an adhesive composition is provided and includes A) a propylene based plastomer or elastomer (PBPE) comprising up to 10 wt % units derived from ethylene and having (i) a Koenig B-value less than 1.0; (ii) a total unsaturation per mole of propylene from 0.01% to 0.03%; (iii) a density from 0.870 g/cc to 0.890 g/cc; (iv) a melt viscosity at 177° C. from 800 mPa·s to 11,000 mPa·s; and (v) a weight average molecular weight from 20,000 to 50,000 g/mol; B) a tackifier; and C) a wax.

Polyolefin-based resin thin layer foam sheet and manufacturing method therefor and adhesive sheet

Abstract: PROBLEM TO BE SOLVED: To provide a polyolefin-based resin thin layer foam sheet suitable for using in electronic apparatuses, substrates for adhesive tape and substrates for wearable which are thin, weight saved and downsized.SOLUTION: The polyolefin-based resin thin foam sheet is a sheet having a plurality of air bubbles compartmented by walls containing a polyolefin-based resin composition, where the polyolefin-based resin composition contains (a) a polyolefin-based resin and (b) (b1) an elastomer and (b2) a plastomer with specific mass ratio relationship, and has an average thickness of 0.05 to 0.5 mm, foam ratio of 2 to 15 times, open cell ratio of 30 to 95% and air babble breaking ratio of 1 to 30%, a resin part ratio in a first area of one sheet surface side of 40 to 80% and the resin part ratio in a second area of another sheet surface side of 20 to 50%.

Polypropylene films with improved sealing behaviour, especially in view of improved sealing properties

Abstract: The present invention relates to a polymer blend and the film of the polymer blend or the film layers of the polymer blend as a surface layer or coating. More particularly, the invention relates to a polymer blend which may be extruded as such or extruded onto one or both sides of packaging film to give a sealing surface(s) which exhibits surprisingly heat sealability suitable for form-fill-and-seal-packaging. The present invention also relates the use of ethylene based plastomer to reduce sealability of films comprising polypropylene.

A film, a method of making the film, a packaging comprising the film and a method of making the packaging

Abstract: A film comprising a polymer blend which comprises from 90 to 95 wt % of a low density olefm-based plastomer or elastomer having a density equal to or less than 0.905 g/cc; from 5 to 10 wt % of a high modulus amorphous polymer; wherein a film comprising the polymer blend exhibits an oxygen transmission rate (OTR) of equal to or greater than 10,000 cc/m 2 ·day is provided. Also provided is a packaging comprising the film, a method of making the film and a method of forming and filling a packaging comprising the film.

Hot melt adhesive composition made from metallocene catalyzed ethylene based plastomer

Abstract: Novel hot melt adhesive composition which is mainly composed of a specific metallocene catalyzed ethylene based plastomer and optionally one or more tackifiers and/or plasticizers as well as to its use.

Plastomer-modified asphalt binders meeting mscr specifications, asphalt paving materials with such asphalt binders, and methods for fabricating such asphalt binders

Abstract: Plastomer-modified asphalt binders meeting MSCR specifications, asphalt paving materials with such asphalt binders, and methods for fabricating such asphalt binders are provided. The asphalt binder contains a base asphalt and a plastomer. If the plastomer has a drop point no greater than about 139C, the asphalt binder further contains sulfur; sulfurcontaining compounds, such as hydrocarbyl polysulfides and thiuram disulfides; phenolic resins; metal oxides; or a combination thereof. The asphalt binder is substantially free of elastomer.

Nonwoven melt-blown webs made from metallocene catalyzed ethylene based plastomer

Abstract: New soft nonwoven melt-blown webs based on melt-blown fibers comprising metallocene catalyzed ethylene based plastomer and to articles made therefrom, in particular hygiene products, such as sanitary wipes, baby diapers, adult incontinence products and feminine hygiene products, or protective films or articles for medical/surgical applications.