Abstract: The invention provides a process for the preparation of a thermoplastic elastomeric resin composition comprising (a) 100 parts by weight of a block copolymer consisting of at least two polymeric blocks (A) composed of a vinyl aromatic compound and at least one polymeric block (B) composed of a conjugated diene compound, or a hydrogenated block copolymer, (b) 20 to 300 parts by weight of a non-aromatic softening agent for rubber, (c) 1 to 100 parts by weight of a peroxide-crosslinking type olefinic resin or a copolymeric rubber containing said resin, and (d) 10 to 150 parts by weight of a peroxide-decomposition type olefinic resin or a copolymer containing said resin, characterized in that the process comprises a step of heat-processing component (a), component (b), at least a part of component (c) and a part of component (d) in the presence of an organic peroxide to cause crosslinking, and a subsequent step of blending these with the remaining part of component (d) and, if any, the remaining part of component

Abstract: A resin composition comprising a polypropylene resin, a polyphenylene ether resin and a compatibility agent wherein dispersion particles comprising the polyphenylene ether resin (b) are dispersed in a matrix comprising the polypropylene resin (a), a minor diameter of the dispersion particles is 2 .mu.m or less, and the ratio of major diameter/minor diameter is 1-10.

Abstract: The invention relates to a flexible composition comprising a vinyl chloride polymer and a block copolymer. The latter comprises a poly(ethylene oxide) block and a block of a polymer which is miscible with the vinyl chloride polymer, other than the latter itself. The invention also relates to a poly(ethylene oxide)/poly-.epsilon.-caprolactone diblock copolymer which can be used in this composition, as well as to the use of this composition for the manufacture of an article and to an article comprising this composition.

Abstract: Polymer blends obtainable by thermal treatment, at not less than 150.degree. C., of a mixture containing at least one high-performance polymer and from 15 to 99 parts by weight or preferably from 40 to 90 parts by weight and particularly preferably from 55 to 75 parts by weight, of a polymer containing sulfoxide groups, and crosslinked or partly crosslinked polymer blend obtainable by thermal treatment, at not less than 150.degree. C., of a mixture containing at least one of the high-performance polymers polyesters, partly fluorinated polymers, polyethersulfones, polysulfones, polyetherimides, polyamidoimides or polyacetals and at least one polymer containing sulfoxide groups, are distinguished by high thermal and chemical stability. Polymers containing sulfoxide groups are polyarylene sulfoxides, in particular polyphenylene sulfoxide. The polymer blends are used for the production of fibers, films or shaped articles.

Abstract: Disclosed is a process for the making a polyvinylchloride/acrylonitrile-butadiene rubber blend by a) coating a polyvinylchloride resin with a stabilizer to form a precoated PVC; b) blending said precoated PVC with one or more acrylonitrile-butadiene rubbers to form a prestabilized NBR/PVC blend; and c) applying heat and pressure to intimately blend said prestabilized NBR/PVC blend into a fluxed NBR/PVC blend. Another aspect is a novel polyvinylchloride/acrylonitrile-butadiene rubber blend having a stabilizer homogeneously and uniformly distributed throughout the microscopic polyvinylchloride domains.

Abstract: A functionalized copolymer of the formulaA--B--Z--XwhereA is a block of vinylaromatic monomers of 8 to 20, preferably 8 to 12, carbon atoms,B is a block of alkadiene monomers of 4 to 12, preferably 4 to 8, carbon atoms,Z is a fundamental building block of a compound having sterically hindering groups andX is a functionalized fundamental building block,a process for its preparation, thermoplastic molding materials containing said copolymer, processes for their preparation, the use for the production of moldings and moldings comprising said molding materials.

Abstract: A polyarylene sulfide resin composition comprising (A) a polyarylene sulfide resin, (B) an aliphatic or saturated cyclic polycarbodiimide resin or a precursor thereof, and preferably (C) reactive silicone compound grains, and (D) a polyethylene naphthalate resin or (E) a filler, which improves excellent properties exhibited by polyarylene sulfide resins, and which is also endowed with an excellent adhesion characteristics to adhesives such as epoxy resins. In addition, a molded article obtained by molding a polyarylene sulfide resin composition endowed with such excellent properties is useful as a container for accommodating an electric component material. Such a molded article may also be used as an electronic component having conductive portions which are totally or partially accommodated in the container, wherein the conductive portions are seled by a sealant encapsulated in the container.

Abstract: A process including:forming a first mixture of a first fluoroelastomer, and a first polymeric siloxane containing free radical reactive functional groups; andforming a second mixture of the resulting product with a mixture of a second fluoroelastomer and a second polysiloxane compound, and wherein the resulting product of the dissimilar polymeric materials is a phase compatible blend.The phase compatible blend is useful as a component of electrostatographic and liquid ink printing machines, including long-life fuser rolls, backing rolls, transfer and transfuse belts and rolls and bias charging and bias transfer rolls.

Abstract: Disclosed is a polypropylene composition useful for making solid state oriented film. The composition comprises two predominantly isotactic polypropylenes with the melting point temperature of one of the polypropylenes being substantially lower than the melting point temperature of the other. In one embodiment of the composition the higher melting point polypropylene is made by Ziegler-Natta catalysis, while the lower melting point polypropylene is made by metallocene catalysis. Compared to polypropylene with similar melt flow rate and made by Ziegler-Natta catalysis, and solid state oriented film thereof, the composition provides a better balance of elevated temperature draw characteristics and physical properties of oriented film made therefrom. Thus, at the same or lower elevated temperature yield stress, oriented film of the composition exhibits improved properties such as stiffness, elongation-at-break, dimensional stability, and oxygen barrier.

Abstract: A thermoplastic molding composition comprisesA) from 1 to 97% by weight of a thermoplastic polyesterB) from 1 to 97% by weight of a polycarbonateC) from 1 to 40% by weight of an elastomer containing oxazoline groups and having a glass transition temperature (T.sub.g).ltoreq.0.degree. C.D) from 0.05 to 5% by weight of a bisoxazolineE) from 0 to 70% by weight of other additives and processing aids,where the total of the percentages by weight of components A) to E) is 100%.

Abstract: A resorbable polymer suitable for producing a medical product, comprising a triblock terpolymer with a structure ABA formed from a biodegradable hard segment A and a biodegradable soft segment B, has as the soft segment a statistical terpolymer with a completely amorphous structure. A process for its production comprises chemically reacting the hard segment monomer with hydroxy terminal groups of the soft segment B. The resorbable medical product produced from the triblock terpolymer can be a textile fabric, produced from multifilaments, a film, membrane or an injection molding.

Abstract: A compound comprising a blend of polypropylene with the reaction of a functionalized polypropylene and polyether amine in which the polyetheramine is grafted into the functionalized polypropylene in a customary mixing apparatus is disclosed. The blend may include an elastomer such as EP rubber and/or a filler such as glass. A process for producing the reaction product of the functionalized polypropylene and the polyether amine by melting with polypropylene in a customary mixing apparatus is also disclosed. Blends of the present invention are advantageously useful to prepare paintable automotive body parts.

Abstract: The present invention provides a rubber composition in which the coexistence of low heat build-up, heat resistance and high hardness can be achieved without damaging failure characteristics. According to the present invention, a rubber composition comprising a 100 parts by weight of matrix rubber and a 2-75 parts by weight of a polyethylene composition which contains 0-80% by weight of polyethylene and 20% by weight or more of a composite comprising a polyethylene component and a rubber component previously bonded via a coupling agent to the polyethylene component, said rubber component is crosslinked with the matrix rubber. At least at one of the kneading stages before the final stage, the compound is kneaded so that the maximum temperature of the compound of the kneading of that stage is higher than the melting point of the polyethylene component mixed, preferably, by 10.degree. C. or more.

Abstract: A blend of at least one fluorine polymer, at least one oxidized polyarylene sulfide, at least one polyarylene sulfide and, if required, conventional additives results in a reduction in the expulsion of the oxidized polyarylene sulfides in gaseous form in the production of shaped articles from this blend, so that no cracks occur in the shaped article and problem-free processing by a cutting method is permitted.

Abstract: A composition comprising:(i) a mixture of about 40 to about 80 percent by weight of a copolymer of ethylene and an alpha-olefin having a melt index in the range of about 0.1 to about 10 grams per 10 minutes and a density in the range of 0.870 to 0.930 gram per cubic centimeter and about 20 to about 60 percent by weight of a copolymer of ethylene and ethyl acrylate having a melt index in the range of about 0.1 to about 50 grams per 10 minutes and an ethyl acrylate content in the range of about 10 to about 40 percent by weight, and for each 100 parts by weight of said mixture,(ii) about 30 to about 150 parts by weight of a mixture of talc and calcium carbonate wherein the weight ratio of talc to calcium carbonate is in the range of about 0.3:1 to about 1.2:1; and(iii) about 1 to about 20 parts by weight of an organopolysiloxane having a kinematic viscosity in the range of about 0.06 to about 2 meters per second as measured at 23 degrees C.

Abstract: A propylene resin composition having excellent physical property balance (heat resistance and impact strength at low temperature), and excellent injection molding processability as well as excellent paintability is provided, which propylene resin composition comprises component (a): a propylene-ethylene block copolymer comprising 85-95% by weight of a crystalline polypropylene homopolymer portion (unit A) and 5-15% by weight of an ethylene-propylene random copolymer portion (unit B) having an ethylene content of 30-60% by weight, the melt flow rate of the total component (a) being 50-500 g/10 min in an amount of 100 parts by weight, component (b): talc having an average particle diameter of 1.5-10 .mu.m and an average aspect ratio of 4 or more in an amount of 10-60 parts by weight, and component (c): an ethylene-1-octene copolymer comprising 20-50% by weight of 1-octene, and having a density of 0.86-0.89 g/cm.sup.3 and a tensile strength at break of 10 MPa or more in an amount of 10-60 parts by weight.

Abstract: The present invention relates to battery parts comprising molded pieces made of polyolefin resin, whose surface to be bonded are treated so as to have at least one functional group selected from the group consisting of hydroxyl group, carboxyl group, carbonyl group, fluorosulfuryl group, sulfonic group and its metallic bases, said molded pieces being bonded together with reactive hot-melt adhesive.

Abstract: A polypropylene-based resin composition comprising:(1) 55 to 75% by weight of a polypropylene-based resin (A) selected from the following (i) and (ii);(i) a crystalline propylene-ethylene block copolymer composed of a propylene homopolymer portion as a first segment and a propylene-ethylene random copolymer as a second segment, and (ii) a mixture of the crystalline propylene-ethylene block copolymer (i) and a crystalline propylene homopolymer;(2) 10 to 15% by weight of an ethylene-octene copolymer rubber (B) having a melt flow rate (measured according to JIS-K-6758, 190.degree. C.) of 0.5 to 10 g/min., an octene content of 20 to 25% by weight and a density of 0.860 to 0.875; and(3) 15 to 30% by weight of talc (C) having an average particle diameter of not more than 3 .mu.m, the total amount of (A), (B) and (C) being 100% by weight, wherein said polypropylene-based resin composition satisfies the following expression:0.25.ltoreq.(A)'/[(A)'+(B')].ltoreq.0.

Abstract: This invention provides the preparation of water-dispersible polyester/acrylic hybrids via a two-stage emulsion polymerization process. For example, methacrylic acid and/or 2-hydroxyethyl methacrylate are copolymerized with styrene/acrylic monomers to yield a relatively hydrophilic and hydro-plasticized first stage. Subsequent additions of hydrophobic monomers to this first stage "seed" results in an inversion of the latex such that the more hydrophilic first stage is at the particle surface. This results not only in improved stability of the resulting latex without the use of additional surfactants, as evidenced by the production of reduced amounts of coagulum, while it also offers relatively low minimum filming temperatures due to the hydroplasticization of the shell of the particle. Furthermore, the use of the water-dispersible polyester results in extremely fine latex particle sizes which can significantly enhance coating properties such as film gloss and clarity.

Abstract: A flame retardant resin composition comprises a silicone resin having specific structure and weight-average molecular weight and a non-silicone resin having aromatic-ring. The silicone resin has R.sub.2 SiO.sub.1.0 units and RSiO.sub.1.5 units. The weight-average molecular weight of the silicone resin is in the range of not less than 10,000 to not more than 270,000. R is hydrocarbon group.