Abstract: The addition of fibrillated acrylic fiber to non-asbestos type friction material compositions provides marked improvement in the flexural strength, stiffness and structural integrity of preforms used in the manufacture of friction elements. The consequent handling characteristics of the preform provide improvement in the manufacturing of the friction element.

Abstract: An antifouling coating composition comprising a settable resin and a non-metallic algicide that does not react with the resin. The composition can be applied to flexible and rigid substrates and does not contain heavy metals.

Abstract: An electric metal foil-plated laminate sheet which is obtained by laminating a cured layer of a thermosetting resin composition with electroconductive foils, said thermosetting resin composition comprising 30-85% by weight of (A) a rubber-modified vinyl ester obtained by reacting,(a) an epoxy resin,(b) a carboxyl group containing rubbery polymer derived from a conjugated diene, and(c) at least one unsaturated monocarboxylic acid selected from the group consisting of acrylic acid and methacrylic acid to react one another in amounts such that, based on 100 parts by weight of (a) the epoxy resin, (b) the carboxyl group containing rubbery polymer accounts for a proportion in the range of 5 to 80 parts by weight and that the total number of carboxylic group contained in (b) the rubbery polymer and (c) the unsaturated monocarboxylic acid falls in the range of 1.3 to 1.5 per each of the epoxy groups contained in (a) the epoxy resin at a temperature of 90.degree. to 120.degree. C.

Abstract: A solid mixture contains as essential components(A) from 40 to 99% by weight, based on the total weight of (A) and (B), of a nonnucleating thermoplastic polyamide and(B) from 1 to 60% by weight, based on the total weight of (A) and (B), of a thermoplastic polyamide which contains a nucleating agent, and in addition(C) from 0 to 60% by weight, based on the total weight of (A)+(B)+(C), of fibrous or particulate fillers.

Abstract: Thermoplastic, high-molecular-weight material which can be processed in the melt and which contains at least one nickel complex derived from a ligand of the formula I ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4, independently of one another, are --H, halogen or --CH.sub.3, R.sub.5 and R.sub.6, independently of one another, are --H or C.sub.1 -C.sub.4 alkyl, A is a para-phenylene radical of the formula II or a mixture of a para-phenylene radical of the formula II with an orthophenylene radical of the formula III ##STR2## the proportion of ortho-phenylene radical in the mixture being not more than 60% by weight, and X.sub.1 and X.sub.2, independently of one another, are --H, halogen, --CH.sub.3, --OCH.sub.3 or --OC.sub.2 H.sub.5, and Y.sub.1 and Y.sub.2, independently of one another, are --H, halogen, --CH.sub.3 or --OCH.sub.3, or Y.sub.1 is a radical of the formula ##STR3## and Y.sub.2 is --H, or Y.sub.1 and Y.sub.2 together are --NHCONH-- or --CONHCO--, where R.sub.7 is --H or C.sub.1 -C.sub.

Abstract: Damage tolerant composites comprising high strength filaments in the form of bundles or tows of continuous fiber and a tough phase separated, crosslinked epoxy resin matrix are disclosed. The crosslinked epoxy resin matrix comprises infusible particles made from a rubber polymer that reside primarily between plies of the composite and critically have a median particle size between 10-75 microns. Prepregs for making the damage tolerant composites and methods of making such prepregs and the epoxy resin compositions thereof are also disclosed. The epoxy resin compositions comprise the infusible particles which become segregated as to size on a surface layer of the prepreg during the process of combining the high strength filaments of the prepreg and the resin containing the epoxy resin composition.

Abstract: A friction material containing from about 0.5-29 wt % of carbonaceous fibers with a bond nitrogen content of from about 14 to 21 wt %, an auxiliary material and a thermosetting resin. The material has good wear and temperature resistance characteristics and can be used in power transmissions and brakes.

Abstract: A method of producing a calcium carbonate, magnesium carbonate or calcium-magnesium carbonate which is surface modified with an organic material wherein the carbonate in substantially dry, particulate form is contacted with an organic monomer, copolymers or a prepolymer, and surface polymerization or reaction in situ on the carbonate in the presence of a gaseous hydrogen atmosphere is effected. In the case where the carbonate has been wet processed and residues of a dispersing agent employed remain as a coating on the carbonate particles after drying, a minor amount of a calcined kaolin or TiO.sub.2 is used as a polymerization catalyst. When the carbonate has been dry ground so that the particles are free from processing chemicals, no catalyst is needed to initiate the polymerization.

Abstract: There is a demand for arylpararosanililinesulfonic acid pigments which, even when the pigment content is relatively low, produce on dilution with customary printing varnishes a printing ink having satisfactory rheological properties. The invention relates to such pasty pigment formulations containing(a) 5 to 50% by weight of an arylpararosanilinesulfonic acid pigment,(b) a long-oil alkyd resin having an oil content of 70-80% by weight whose oil content is based on the reaction with a drying, semidrying or nondrying oil or with a mixture of a plurality of these oils or with corresponding fatty acids whose dicarboxylic acid compontent is a mixture of isophthalic and orthophthalic acid, a small proportion of one or more .alpha.,.beta.-unsaturated dicarboxylic acids and, possibly, anhydrides thereof and whose polyalcohol component contains a mixture of glycerol and pentaerythritol,(c) a hydrocarbon resin having an average molecular weight within the range from 600 to 1700, the amount of which is 1-1.

Abstract: A glass fiber reinforced composition comprising(a) a poly(1,4-cyclohexylene dimethylene terephthalate) resin,(b) 10-50% based on total composition weight of glass reinforcing fibers, and(c) a crystallization promoting amount of at least one linear alcohol having 30-50. These resin compositions have excellent strength, stiffness, and heat resistance and can be molded at temperatures below 150.degree. C.

Abstract: A process for enhancing the fabrication of thermoplastic polymers entailing the addition of from 0.01 to 1 part, per hundred parts of thermoplastic polymer, of a processing aid, said processing aid comprising a processing additive, such as a silicone or a polyol, and a processing adjuvant, such as a phosphate.

Abstract: A polyvinyl chloride resin composition comprises 3-30 wt. % of a graft copolymer and 97-70 wt. % of a polyvinyl chloride resin and has highly-balanced properties between impact resistance, transparency and stress-whitening resistance and excellent processing characteristics. The graft copolymer is obtained by graft-polymerizing, in the presence of a latex containing greater than 75 but not exceeding 85 parts by weight of a rubbery butadiene-styrene copolymer formed of 65-85 wt. % of butadiene, 15-35 wt. % of styrene and 0-3 wt. % of crosslinkable monomer, (i) 5-24 parts by weight of a first monomer mixture as a first-stage component, said first monomer mixture being composed of 70-97 wt. % of methyl methacrylate and 30-3 wt. % of an alkyl acrylate whose alkyl group has 1-8 carbon atoms; and then (ii) 3-21 parts by weight of a second monomer mixture as a second-stage component, said second monomer mixture being composed of 97-100 wt % of styrene and 0-3 wt. % of crosslinkable monomer.

Abstract: This invention relates to a thermoplastic formulation having a first part comprising, (i) a blend of a polyphenylene ether and a polyvinyl aromatic and (ii) a nuclear halogenated polyvinyl aromatic flame retardant, and a second part, in admixture with the first part, comprising a Diels-Alder adduct having the formulaA--R--(A).sub.nwherein n is 0, 1 or 2 and A is a polyhalogenated cycloalkylene or cycloalkyl group and R is as defined herein.

Abstract: Large molded parts made of polyphenylene ether-polyamide resin can be improved with respect to retention of physical properties after thermal aging which is accomplished by the incorporation therein of certain effective metal salts such as CuI, CuCl.sub.2, and Cu(OAc).sub.2.

Abstract: A fixing agent comprising Poly(alkylene oxide) moieties is used to fix a delayed cure of UV curable epoxy compositions exposed to UV radiation.

Abstract: Organosilicon compounds and organopolysiloxane compositions which are crosslinked by the addition of Si-bonded hydrogen with SiC-bonded vinyl groups and contain the organosilicon compounds as additives for improving the adhesion of the resultant elastomers on the substrates on which they are formed.

Abstract: In a friction material wherein sponge iron is a principle friction producing component especially on initial engagement during a brake application, the improvement wherein 10-50% of the sponge iron is replaced with mill scale without a substantial change in the operational characteristics of the friction material.

Abstract: A molding resin composition comprising (A) a saturated polyester resin, (B) a graft copolymer and (C) a rubber-reinforced resin, wherein a weight ratio of the saturated polyester resin (A) to a total weight of the graft copolymer (B) and the rubber-reinforced resin (C) is from 95:5 to 5:95, a weight ratio of the graft copolymer (B) to the rubber-reinforced resin is from 100:0 to 5:95, and the graft copolymer (B) is one prepared by copolymerizing an unsaturated epoxide monomer and at least one monomer selected from the group consisting of aromatic vinyl monomers, cyanated vinyl monomers and alkyl unsaturated carboxylates in the presence of an ethylene-.alpha.-olefin base rubber, which can provide a molded article having improved impact strength, weld strength, stiffness and mold shrinkage factor.

Abstract: Normally solid, organic solvent-soluble, thermoplastic, polyethylenically-unsaturated, cellulosic polyurethane polymers are provided. These cellulosic polyurethane polymers comprise one or more cellulose ether or ester segments, one or more alkylene moieties having at least two carbon atoms and which can be substituted or interrupted by ether oxygen atoms, ester groups, or phenylene groups, two or more residues of diisocyanates, the segments, moieties, and residues being linked together by linking groups with the proviso that said alkylene moieties contain sufficient ethylenic unsaturation that said polymer can be crosslinked to a solvent-insoluble state.

Abstract: A curable resin composition comprising an isocyanuric ring-containing urethane-modified radical-polymerizable compound. The composition can give a protective coating having excellent surface mar resistance and improved secondary adhesion.