Abstract: A multi-layer structure of low COF also having antistick characteristics over a wide temperature range during heat-sealing, comprising an amine containing polypropylene core layer having one or more skin layers of a low stereoregularity polyolefin containing, silica and a polysiloxane and a method of forming the same.

Abstract: A multilayer film useful in chub packaging includes a heat sealable layer, an abuse layer of very low density polyethylene, a polyamide or copolyamide layer, an oxygen barrier layer, a layer comprising nylon 6 or nucleated nylon 6, and a self-weldable layer.An alternate construction can be made without the abuse layer of very low density polyethylene, and includes an additional self-weldable layer. The film is made of a double-wound lay-flat tubular film. The film exhibits excellent impact resistant properties.

Abstract: An impact-resistant laminate has adhered to a rear glass face, opposite to the face which receives the impact, a polycarbonate sheet up to about 3 mm thick which is sufficiently thin to conform to the rear glass face and to be adhered thereto without preforming. Preferably the thickness of the polycarbonate sheet is in the range about 0.25 mm to about 0.64 mm, and it has an abrasion-resistant self-healing coating. The laminate may include toughened or annealed glass sheets.

Abstract: A non-ferrous metal mechanical part having a wear-resistant and smooth surface, and comprising a substrate of a metal selected from the group consisting of aluminum, aluminum alloy, nickel, and nickel alloy, and a surface layer formed on a surface of said substrate and containing chromium oxide (Cr.sub.2 O.sub.3) as a major constituent. The chromium oxide (Cr.sub.2 O.sub.3) is a substance which has been converted by heating a chromium compound, and an intermediate layer containing a reaction product between the substrate and chromium oxide in the surface layer is formed at an interface between the surface layer and the substrate.

Abstract: A multilayer compression-molded article produced by compression-molding a composite plastic material. The composite plastic material comprises a first synthetic resin and a second synthetic resin in which the first synthetic resin surrounds substantially the entire second synthetic resin. The compression-molded article comprises a first resin layer molded from the first synthetic resin and a second resin layer molded from the second synthetic resin in which the first resin layer surrounds substantially the entire second resin layer. The composite plastic material is obtained by an extrusion apparatus which intermittently extrudes the second synthetic resin via a subsidiary extrusion flow passage into a main extrusion flow passage in which the first synthetic resin flows.

Abstract: A thermoplastic polyolefin composite that is useful as an exterior auto or truck body part has the following layers of components:a. a layer of a glossy clear thermoplastic finish bonded firmly tob. a layer of a thermoplastic pigment containing paint firmly bonded toc. a thin size layer of a thermoplastic chlorinated polyolefin that is firmly bonded tod. a flexible sheet of a thermoplastic polyolefin resin.A thermoformable composite sheet structure that can be made into the above laminate having the layers a.-d. of the above structure also is part of this invention.

Abstract: A laminated structure comprising, laminated in the order stated,(A) a layer of polycarbonate or a layer of a polyester,(B) a layer of a modified ethylene/alpha-olefin random copolymer, the modified copolymer containing about 0.01 to 10% by weight, based on the trunk ethylene/alpha-olefin random copolymer, of an unsaturated carboxylic acid or its derivative grafted thereto, and having an ethylene content of 75 to 95 mole %, a melt flow rate of 0.1 to 50 g/10 min., a density of 0.850 to 0.905 g/cm.sup.3 and a crystallinity of less than 10%, and(C) a layer of a saponified olefin/vinyl acetate copolymer or a layer of a polyamide resin.

Abstract: Disclosed herein are pinhole-free, ultrathin, polymethylmethacrylate films having thicknesses of about 400 angstroms or less and a process to prepare them. The films find particular utility in separatory applications.

Abstract: An adhesive composition comprising a plurality of selectively hydrogenated block copolymers, each of said block copolymers comprising at least one polymeric block containing predominantly monoalkenyl aromatic hydrocarbon monomer units and at least one polymeric block containing predominantly conjugated diolefin monomer units, at least one of which block copolymers is carboxylated and at least one of which block copolymers is not carboxylated and laminated structures comprising a plurality of polymeric layers tied together with said adhesive composition. The adhesive composition contains a relatively minor amount of carboxyl groups, on average, per polymer chain in the composition and is particularly useful in the preparation of laminated structures via coextrusion or similar processes, wherein the various layers are brought together in the molten phase while in motion, when one or more layers in the laminated structure comprises a polar group reactive with the carboxyl groups.

Abstract: A photographic paper support, which carries on both sides a water resistant coating of polyethylene, is disclosed. The polyethylene is a polyethylene of relatively low density of between 0.930 and 0.936 gram per cubic centimeter, which is produced according to high pressure polymerization. In particular, low density polyethylene (LDPE) produced according to the high pressure method with a density of 0.934 gram per cubic centimeter can be employed.

Abstract: A thermosetting resin decorative laminated sheet faced with a resin-impregnated sheet layer obtained by impregnating a sheetlike material with a resin composition containing an amino resin (I) produced by the reaction of formaldehyde with an amino compound (A) having as an essential component thereof at least one carboguanamine (a) selected from the group consisting of cyclohexanecarboguanamine and norbornanecarboguanamine and curing the resultant impregnated sheetlike material excels in flexibility, crack resistance, light resistance, and chemical resistance. A decorative overlaid plywood enjoying similarly desirable properties is obtained by integrating the aforementioned sheet layer with a substrate.

Abstract: An improvement of a medium for electrophoresis which comprises a support of a plastic material and an aqueous polyacrylamide gel, wherein a resin layer comprises a resin having an oxygen permeability coefficient lower than that of the plastic material of the support is arranged betwen the support and the polyacrylamide gel. The resin preferably shows an oxygen permeability of not more than 15 cc/m.sup.2 .multidot.atm.multidot.day in the form of a resinous layer of 20 .mu.m thick, and exemplified by a vinylidene chloride-vinyl chloride copolymer, polyvinyl alcohol, polyacrylonitrile, polyvinylidene chloride, a vinyl alcohol-ethylene copolymer, a vinylidene chloride-acrylonitrile copolymer, and an acrylonitrile-methyl acrylate-butadiene copolymer.

Abstract: A paper support material for photographic layers, as well as a process for the manufacture of such a support material, includes coating the paper on at least one side with a polyolefin layer containing a polyalkylene glycol, preferably a polyethylene glycol, a polypropylene glycol, or a copolymer of ethylene oxide and propylene oxide in a quantity between 40 ppm and 1% by weight, relative to the total quantity of the polyolefin. The molecular weight of the polyethylene glycol can be between 100 and 35,000, preferably 400 to 20,000, that of the polypropylene glycol can be between 400 and 10,000, preferably between 2,000 and 4,000, and that of the copolymers of ethylene oxide and propylene oxide can be between 200 and 20,000. In addition to the polyalkylene glycol, the polyolefin layer advantageously contains a fatty acid derivative from the group of soaps and fatty acid amides.

Abstract: Covering a rigid but pliable, smooth surface with a one-sided matte embossed polyethylene film, where the non-embossed smooth side of the film is in direct contact with the smooth surface being covered. Adhesion of the smooth side of the film to the smooth surface to which it is applied is effected much like a vacuum adhesion as seen when a drop of water is placed between two sheets of glass. The embossed side of the film forms microscopic air pockets when rolled upon itself which prevents blocking. This feature allows the non-embossed side to be made as smooth as possible without the need for an anti-blocking agent.

Abstract: A barrier structure liner for food packages comprises two layers of EVOH (ethylene-vinyl alcohol copolymers), one of which is interposed between two moisture barriers. The inner layer of EVOH (in contact with the packaged food) functions as a solvent barrier which reduces the loss of flavor components from the foods, while the buried EVOH layer, protected from moisture from the packaged food and the outside atmosphere, serves as an oxygen barrier to prevent oxygen from outside the package from oxidizing the foods within the container. The barrier structure may be used in paper cartons, plastic bottles, bags and the like.

Abstract: Coated paper useful for ink jet printing comprises a cellulosic substrate coated with an intimate mixture of a particulate pigment with a binder comprising a mixture of an acrylic resin and polyvinyl alcohol.

Abstract: Molded articles of thermoplastic elastomer obtained in accordance with the present invention comprise a molded product prepared from a thermoplastic elastomer containing a partially cross-linked product of ethylene/.alpha.-olefin copolymer rubber and a polyolefin resin, a primer layer containing at least one compound selected from the group of saturated polyesters and chlorinated polyolefins and formed on the surface of said molded article, and a topcoat layer containing at least one compound selected from the group of saturated polyesters, acrylic ester resins, polyvinyl chloride and polyisocyanate (provided that the topcoat layer contains at least the acrylic ester resin when the primer layer consists only of the saturated polyester) and formed on said primer layer.

Abstract: For packaging purposes, metallized multilayer films containing a biaxially oriented polypropylene film as a base layer should have high scratch resistance, good heat-sealing properties, such as low heat-sealing temperature, attractive visual properties, such as high metallic luster, excellent metallizability of the base layer or of a covering layer, and also good processing properties during metallization, printing, slitting, and during processing on fast-running packaging machines. This requirement profile is fulfilled by a multilayer film of asymmetric structure containing a biaxially oriented base layer 4 composed of polypropylene, a heat-sealing layer 3 which contains an additive combination composed of pigment in platelet form and siloxane and which is optionally modified by an addition of polypropylene and a hydrocarbon resin, and of a corona-treated polypropylene covering layer 2 which is not capable of being heat-sealed.

Abstract: Films having a core of ethylene-vinyl alcohol copolymer (EVOH) sandwiched between polyolefin, e.g. polypropylene are coextruded so that the polyolefin also encapsulates the EVOH layer on the side edges. The films which can contain adhesive layers are oriented greater than 4 greater in the machines direction and greater than 7 greater in the transverse direction to give excellent oxygen and moisture barrier properties.

Abstract: The present invention is an adaptive laser protection device which adaptively forms a reflection holographic optical element to reflect away incident laser radiation. The laser protection device includes a layer of a nonlinear optical material which has an index of refraction varying with light intensity, a transparent layer having a depth greater than the coherence length of the expected ambient illumination and less than the coherence length of the expected laser radiation, and a partially reflecting layer on the far surface of the transparent layer. Laser radiation incident on the laser protection device forms an interference pattern in the nonlinear optical material between directly incident light and light reflected from the partially reflecting layer. This interference pattern within the nonlinear optical material causes the formation of a holographic optical element due to varying indices of refractions.