Abstract: Polycarbonates are blended with an impact modifier to improve the impact resistance thereof. The impact modifier is a multiple phase polymer system prepared by subsequent multiple stage polymerizations. The first phase which constitutes from about 50 percent to about 90 percent by weight of the multiple phase impact modifier is generally an elastomer such as an alkyl acrylate wherein the alkyl portion has from 2 to 18 carbon atoms. The second phase polymer is generally a plastic type compound such as a vinyl substituted aromatic, an alkyl methacrylate, or an alkenyl nitrile compound. The impact modifiers are made without utilizing any crosslinking or grafting agents and thus are substantially free of any such bonds and are generally free-flowing powders.

Abstract: This invention relates to mixtures of polycarbonates with graft polymers and copolymers which have been rendered flame resistant and which are characterized by containing modified polyalkylene ethers as antistatic agents.

Abstract: Polyalkyloxazolines are useful as compatibilizing agents in polycarbonate/polyamide resin blends.

Abstract: Thermoplastic, branched, high-molecular weight polycarbonates endowed with properties of flame-resistance (self-extinguishing polycarbonates) are characterized by the presence in their polymeric chain of units deriving from a di-hydroxy-aromatic compound having the formula: ##STR1## wherein: R is a single bond; or is a substituted or non-substituted, linear or branched alkyl group containing from 1 to 5 carbon atoms; or is a group selected from O, S, SO.sub.2, CO;X and Y are equal to, or different from, each other and stay for H or CH.sub.3 ;m and n are integers, equal to or different from each other, ranging from 1 to 4;and of units deriving from a mono-halogenated tetraphenyl compound having the formula: ##STR2## wherein: R, R.sub.2, R.sub.4, R.sub.6 stay for OH;R.sub.1, R.sub.3, R.sub.5, R.sub.7, either equal to, or different, from one another, stay for OH, H, or a linear or branched alkyl group of from 1 to 5 carbon atoms.

Abstract: Polycarbonate and blends of polycarbonate with polyalkylene terephthalate are improved in impact properties by incorporation of a modifier comprising an EPM and/or EPDM elastomer in combination with an ethylene homo- or copolymer plastics component such as HDPE.

Abstract: A rubber composition which in the cured state shows improved adhesion to substrate through hydroxyl-reactive adhesives such as polyurethane comprises a first elastomer such as EPDM which shows generally poor adhesion, a minor proportion of a halogenated elastomer, phenol resin, a curative system for covulcanizing the elastomer, and an aminic substance which catalyses reaction between the resin and isocyanate containing adhesives.

Abstract: A method for preparing novel poly(aryl ether)-(poly aryl carbonate) block copolymers by the decarboxylation of copolycarbonates prepared by the condensation of two different aromatic dihydroxy compounds and a carbonate precursor such as phosgene. At least one of the aromatic diols must have at least one electron-withdrawing group located in a position ortho or para to at least one of its hydroxy groups and at least one of the diols must not have any electron-withdrawing groups in a position ortho or para to either of its hydroxy groups. The method is particularly effective in making crystalline block copolymers.

Abstract: High molecular weight polycarbonates are prepared by reacting a sterically hindered, substituted aromatic bischloroformate with an alkali metal hydroxide in the presence of a substituted pyridine.

Abstract: A new polymeric composition of matter comprises an intimate blend of an aromatic polycarbonate, polymethylmethacrylate (PMMA), and a terpolymer of ethylene propylene-diene (EPDM) rubber-toughened styrene-acrylonitrile (SAN). The blend of the present invention has improved physical properties and excellent environmental stress crack resistance toward organic solvents.

Abstract: A resin composition comprising(A) 10 to 99% by weight of a polycarbonate resin and(B) 90 to 1% by weight of a resin which comprises(b-1) 100 to 10% by weight of a copolymer which is obtainable by polymerizing 1 to 800 parts by weight of an unsaturated epoxy monomer and 0 to 2,000 parts by weight of other copolymerizable monomer in the presence of 100 parts by weight of an ethylene-.alpha.-olefin base rubber, and(b-2) 0 to 90% by weight of a copolymer which is obtainable by polymerizing at least one monomer selected from the group consisting of aromatic vinyl compounds, cyanated vinyl compounds and alkyl unsaturated carboxylates.

Abstract: Thermoplastic polyester molding materials having low-temperature impact strength essentially consist of(A) from 20 to 79 parts by weight of one or more aliphatic polyesters of an aromatic dicarboxylic acid having a relative viscosity of from 1.2 to 1.8,(B) from 20 to 79 parts by weight of one or more aromatic polycarbonates having a relative viscosity of from 1.2 to 1.5,(C) from 1 to 40 parts by weight of an elastomer blend consisting of1. from 5 to 95% by weight of an ethylene copolymer composed of(a) from 40 to 99% by weight of ethylene and(b) from 1 to 60% by weight of one or more comonomers containing carboxyl groups and/or derivatives of carboxyl groups, and2. from 5 to 95% by weight of an elastomeric graft polymer which is prepared by emulsion polymerization and composed of(a) from 70 to 95% by weight of a substantially crosslinked grafting base having a glass transition temperature T.sub.g below -20.degree. C.

Abstract: A higher solid coating composition comprises a solid resin mixture of polyol resin and alkyletherified melamine resin, 0.2.about.10 parts by weight of an aliphatic sulfonic acid compound and 1.about.100 parts by weight of a non-aqueous polymer dispersion based on 100 parts by weight of the resin mixture. The non-aqueous polymer dispersion consists of (a) organic solvent component, (b) particle component insoluble in the component (a), and (c) particular dispersion stabilizer component soluble in the component (a) and capable of stably dispersing the component (b) into the component (a).

Abstract: Poly(alkylene carbonate) polyahl polymers containing two or more acid-terminal moieties are disclosed. Acid-terminal polyahls provided herein are useful as surfactants or as intermediates for the syntheses of other polymers.

Abstract: A clear polymer blend comprising:(1) 50-90 wt. % of a glycol copolyester having repeat units from 1,4-cyclohexanedimethanol, terephthalic acid and an alkylene glycol;(2) 45-5 wt. % of a polycarbonate resin; and(3) 5-45 wt. % of an aromatic polyester having repeat units from terephthalic acid, isophthalic acid and Bisphenol A.

Abstract: The present invention relates to thermoplastic moulding compositions comprising polydiorganosiloxanepolycarbonate block copolymers, copolymers of styrene and maleic anhydrides, graft polymers and, where appropriate, further customary additives and a process for preparing these moulding compositions.

Abstract: Resin bearing material consists essentially of at least one thermoplastic resin material selected from the group consisting of polyacetal, polyamide, polycarbonate, polyphenylene sulfide, polyethylene terephthalate, and ultra-high molecular weight polyethylene, and of aromatic group, polyamide fiber, and is produced by the steps comprising kneading fand extruding said at least one thermoplastic resin material and the cutting the extruded material.The sliding characteristics are superior to the conventional oleo-bearing materials containing the carbon fiber, and glass fiber.

Abstract: A lubricating oil contains a carbon-carbon backbone polymer containing residual unsaturation and bearing graft moieties derived from graft monomers containing ethylenic unsaturation and an epoxide moiety, and bonded to at least one of said graft moieties through an opened epoxide moiety, a Mannich base, prepared by reaction of an amine, an aldehyde, and a hindered phenol containing an active hydrogen atom.

Abstract: A high solids protective coating composition based on a coreactive thermosetting binder comprises low molecular weight hydroxyl functional acrylic copolymer, low molecular weight hydroxyl functional polyester polymer, hydroxy ester functional epoxy ester diluent, and a coreactive crosslinking amine material.

Abstract: A thermoplastic resin composition with superior chemical resistance and impact resistance is disclosed. The composition comprises: 50 to 90% by weight of a rubber-modified styrene thermoplastic resin containing 10 to 60% by weight of .alpha.-methyl styrene, 5 to 48% by weight of an aromatic polyester, and 2 to 10% by weight of an aromatic polycarbonate.

Abstract: The invention relates to a synthetic resin composition comprising a phenol-formaldehyde resin and a polyurethane component, and to a substrate material for printed circuit boards, comprising a fibrous carrier material which is impregnated with such a synthetic resin composition derived from the reaction of a phenol and a formaldehyde-producing compound in the presence of the polyurethane component and a basic catalyst to form an interpolymer which upon further processing yields a substrate material which is on the one hand suitable to be provided with holes by punching and piercing and on the other is not subject to an objectionable degree of sagging during the soldering of components onto the printed circuit board by means of a wavesoldering bath.