Abstract: The present invention is directed, in general, to an improved material and method of planarizing a surface on a semiconductor wafer and, more specifically, to a method of altering the properties of polymers, preferably thermoplastic foam polymers, used in polishing applications. The chemical and mechanical properties thermoplastic foam substrates can be transformed by inorganic, inorganic-organic, and or organic—organic grafting techniques, such that the polymer foam is endowed with new set of properties that more desirable and suitable for polishing.

Abstract: A bottle closure made from an olefin polymer composition (A) which includes: 1) 90-100% by weight of a crystalline propylene homopolymer or propylene/C2-C10 alpha-olefin random copolymer, those polymers containing at least 94% by weight of a fraction insoluble in xylene at room temperature; and 2) 0-10% by weight of an ethylene/C3-C10 alpha-olefin elastomeric copolymer, provided that when the amount of polymer (2) is 0% by weight, polymer (1) is one of the above random copolymers. Said composition (A) has a flexural elastic modulus value at 23° C. of at least 1620 MPa, a strength at yield at 23° C. of at least 33 MPa, and an IZOD impact resistance at 0° C. of at least 2.5 kJ/m2.

Abstract: A polyamide resin-based heat-shrinkable multilayer film is caused to satisfy various properties required of a packaging material, especially a food packaging material, at high levels, and particularly exhibit a highest level of heat-shrinkability. The multilayer film comprises at least three layers including an outer surface layer (a) which comprises a polyester resin or a polyolefin resin; an intermediate layer (b) which comprises a mixture of 85-60 wt. % of an aliphatic polyamide resin, and 15-40 wt. % of an aromatic copolyamide resin which is a copolymer of aliphatic diamine/isophthalic acid and aliphatic diamine/terephthalic acid, and an inner surface layer (c) which essentially comprises a copolymer of ethylene and &agr;-olefin having a density below 0.915. The heat-shrinkable multilayer film has been biaxially stretched and then heat-treated to have hot-water shrinkabilities at 80° C.

Abstract: A nanoporous polymer comprises hollow structures fabricated from crosslinked polymeric strands. The hollow structures are further coupled to other crosslinked polymeric strands by a covalent bond. Particularly contemplated nanoporous polymers have a Tg of no less than 400° C. and a dielectric constant k of no more than 2.5.

Abstract: Synthetic roofing products such as simulated slate and clay tile shingles, and other products, such as flower pots, floor coverings, plastic pallets and the like are compression molded from a mixture of ultra low density polyethylene binder and a filler which may comprise recycled rubber products such as E.D.P.M (ethylene propylene diene monomer) and S.B.R. (styrene butadiene rubber). Colorants may be added to the mixture prior to final molding. Many of the products, especially synthetic shingles, are less expensive, easier to handle, and more durable than the slate or clay tile shingle product simulated.

Abstract: A decorative material is provided which possesses excellent surface properties, such as excellent staining resistance, marring resistance, scratch resistance, abrasion resistance, and anti-transferability to a cellophane pressure-sensitive adhesive tape, and can be produced at low cost. This decorative material comprises: a substrate having at least on its surface an active hydrogen-containing polar functional group; and, provided on the substrate, a two-component cured urethane resin layer and a surface resin layer of a crosslinked coating formed from a ionizing radiation curable acrylate resin, the two-component cured urethane resin layer having a structure of at least three layers, the crosslinking density of the intermediate layer being lower than that of each layer provided on both sides of the intermediate layer.

Abstract: A pressure sensitive adhesive composition suitable for medical purposes comprising a rubbery elastomeric base and water soluble or water swellable hydrocolloids, where the adhesive composition includes a substantially homogeneous mixture of 15-60% of one or more rubbery components, 10-60% of a mixture of hydrocolloids that includes a cellulose derivative, amidated pectin, and potato starch, 0-50% of one or more tackifier resins, 0-15% cohesive strengthening agent, 0-10% of a plasticizer and 0-5% pigment. The adhesive shows at least as good properties as state of the art adhesives comprising gelatine with respect to resistance to biological fluids, adhesion to skin, and coherence.

Abstract: Artificial leather has a base sheet and a resin layer arranged on at least one side of the base sheet.

Abstract: A polymeric membrane system containing a polymeric membrane and a substrate with interstitial gaps. Polymeric membrane components reside within the interstitial gaps of the substrate and below the surface of the substrate. Also, the layer of polymeric membrane components is thinner than the cross-sectional thickness of the substrate.

Abstract: The present invention relates to a wood-filled thermoplastic resin composition comprising wood meal, thermoplastic resin particles and a binder solution, and a process for producing the same.

Abstract: Daylight fluorescent articles are disclosed that utilize durable fluorescent pigment particles resulting from a fluorescent dye incorporated within a matrix polymer selected from polycarbonate, polyester and mixtures thereof and where the particles are of various desired shapes and sizes. Embodiments of such fluorescent pigment particles may also be retroreflective and are especially useful for pavement marking surfaces and retroreflective products for highway transportation safety.

Abstract: A tetrafluoroethylene polymer having high stretchability, a fibrillatable character and a non-melt fabricable quality, which has a standard specific gravity of at most 2.160, and a tensile break strength of from 32.0N (3.26 kgf) to 49.0N (5.0 kgf) or an endothermic ratio of at most 0.15 as calculated from the measurement by differential thermal analysis. The tetrafluoroethylene polymer is suitable for stretching operation after paste extrusion.

Abstract: A pressure sensitive adhesive is based on a polymer having a glass transition temperature ≦10° C. and obtained by free-radically initiated polymerization of ethylenically unsaturated monomers in a liquid medium in the presence of >0 and ≦5% by weight, based on the overall amount of the ethylenically unsaturated monomers used for the polymerization, of at least one oligomeric compound itself obtained by free-radically initiated polymerization of ethylenically unsaturated monomers.

Abstract: According to the invention, a polytrimethylene terephthalate is provided having 0.6 to less than 2 mole percent dipropylene glycol. Such compositions have a reduced tendency to generate acrolein when heated in air. These PTT polymer compositions exhibit improved and enhanced dyeability as compared to conventional PTT made by the DMT process and the TPA polycondensation/solid state polymerization processes.

Abstract: Disclosed is a polyimide coated shape memory material suitable for thermomechanical treatment to shape-set the material into the desired configuration and activate shape memory properties. The polyimide coating is subjected to a curing regime that imparts higher heat resistance in the polyimide coating to withstand the elevated temperatures required during the shape-setting treatment.

Abstract: A heat activatable adhesive composition including a thermoplastic resin, and a hindered phenol compound which is solid at 20° C. and which is fusible at an elevated temperature. The adhesive composition is useful as a heat activatable adhesive layer of labels or sheets including a heat-sensitive recording label.

Abstract: Synthetic roofing products such as simulated slate and clay tile shingles, and other products, such as flower pots, floor coverings, plastic pallets and the like are compression molded from a mixture of ultra low density polyethylene binder and a filler which may comprise recycled rubber products such as E.D.P.M (ethylene propylene diene monomer) and S.B.R. (styrene butadiene rubber). Colorants may be added to the mixture prior to final molding. Many of the products, especially synthetic shingles, are less expensive, easier to handle, and more durable than the slate or clay tile shingle product simulated.

Abstract: A foam sheet including a blend of polypropylene and homogeneous ethylene/alpha-olefin copolymer, wherein the polypropylene is present in the blend at a weight percentage ranging from 70 to 95 and the homogeneous ethylene/alpha-olefin copolymer is present in the blend at a weight percentage ranging from 5 to 30. Foam composite structures in which the aforedescribed foam sheet is bonded to polyethylene and/or polypropylene foam sheets are also disclosed.

Abstract: An adhesive tape comprising: (a) a polymer film; (b) a primer coat on said polymer film; and (c) an adhesive layer on the primer coat comprising: (i) a natural rubber latex; and (ii) a tackifier.

Abstract: An adhesive tape comprising: (a) a polymer film; (b) a primer coat on said polymer film; and (c) an adhesive layer on the primer coat comprising: (i) a natural rubber latex; and (ii) a tackifier.