Abstract: Flame-retarded, reinforced and unreinforced thermoplastic compositions having improved arc resistance are provided comprising a high molecular weight linear polyester, such as poly(1,4-butylene terephthalate) and the like, a flame-retarding amount of a flame-retardant, such as an aromatic polycarbonate and a particulate material selected from the group consisting of finely divided mica and finely divided clay. A process for improving the arc resistance of reinforced or unreinforced flame retardant polyester compositions is also provided, the process comprising admixing finely divided mica or finely divided surface treated clay with a high molecular weight linear polyester and a flame-retardant.

Abstract: Fine particle size CaCO.sub.3 is encapsulated with low density polyethylene (LDPE) in a fluid energy mill. Very thin extrusion oriented films (as low as 0.4 mil.) were made using the LDPE encapsulated CaCO.sub.3 at high concentrations of 32-61%. Such films are soft and have a dry "feel" and translucent appearance with slip and anti-block properties. They can be heat sealed, printed, and folded. The films can be used as paper and paper tissue substitutes.

Abstract: A non-discoloring glass strand size comprises a thermoplastic polyurethane emulsion produced by the chain extension of an NCO-terminated prepolymer, which prepolymer is prepared by the reaction of an aliphatic or cycloaliphatic diisocyanate with a polyalkylene ether polyol and is particularly suitable for glass incorporated in polyamide resins.

Abstract: Thermoplastic molding compositions are provided comprising from about 80 to 98% by weight of a polycarbonate obtained from diphenols, having a mean weight-average molecular weight M.sub.w from about 10,000 to 200,000 and from about 20 to 2% by weight of a polyester-carbonate and/or polyether-carbonate with mean weight-average molecular weights M.sub.w of from about 50,000 to 300,000, which contain between about 50 and 70% by weight of soft polyester segments or soft polyether segments with mean number-average molecular weights M.sub.n of from about 10,000 to 20,000. The instant invention also relates to a process for the production of said thermoplastic molding compositions.

Abstract: Block copolymers of a vinyl-substituted aromatic hydrocarbon and a conjugated diene, having alkali metal atoms linked to at least one terminal of the polymer chain are obtained by polymerizing vinyl-substituted aromatic hydrocarbon and conjugated diene monomers with use of an alkali metal or organo alkali metal initiator. The block copolymer thus obtained is treated with a polar reactant to introduce polar groups into the polymer chain terminal.Compositions for paints and printing inks are prepared by incorporating inorganic pigments into the block copolymer having the terminal polar group.

Abstract: A novel composition comprising 100 parts by weight of an aromatic polyester, 5 to 150 parts by weight of powdery feldspar and optionally 5 to 120 parts by weight of a plate-like inorganic filler such as glass flakes and/or 1 to 100 parts by weight of a rubbery elastomer such as acrylic rubber. Up to a half of the powdery feldspar may be replaced by another pulverulent inorganic filler such as talc. The composition is useful as engineering plastics because it gives molded articles having high impact strength and heat distortion temperatures and reduced warping.

Abstract: Poly(meta-phenylene isophthalamide) comprising encapsulated filler, a process for the preparation of these compositions by addition of the filler to the polymer solution before precipitation, and molded articles prepared from these materials characterized by increased strength at equal filler loadings.

Abstract: A powder coating composition useful for coating metal substrates to provide a low gloss finish; the powder particles are a blend of(a) a polyester or a blend of polyesters,(b) an epoxy resin,(c) triglycidyl isocyanurate,(d) calcium carbonate pigment and(e) finely divided polypropylene particles;The composition is particularly useful for providing the interior of automobiles, station wagons and trucks with a low gloss finish.

Abstract: A process for pigmenting polyolefins and rigid polyvinyl chloride, which comprises the use of perylenetetracarboxylic acid diimide pigments of the formula ##STR1## wherein R.sub.1 represents an aliphatic or cycloaliphatic radical of at least 12 carbon atoms and R.sub.2 represents hydrogen or an aliphatic or cycloaliphatic radical. These pigments are exceptionally suitable for pigmenting polyolefins and rigid polyvinyl chloride.

Abstract: Polyurethane elastomers having nearly Newtonian flow characteristics and having reduced thixotropy are provided by admixing with a pigmented polyol a minor amount of a sodium alkyl sulfate. The polyurethanes hereof are employed as surface coatings for athletic arenas, such as gymnasiums and the like.

Abstract: A novel, heat curable, liquid polymer composition is disclosed which comprises a modified urethane oligomer containing ethylenic unsaturation, a free radical catalyst, a polyfunctional mercaptan, and a filler.

Abstract: A novel amine-promoted, peroxide-cured polyester composition which can be utilized at low temperatures, e.g. 25.degree. to 50.degree. F., but which will not react at an excessively rapid rate should the amine be added to the curing agent before the curing agent is mixed with the polyester. The preferred system comprises, in addition to the polyester resin and peroxide curing agent, (a) an organoalkanolamine and (b) a hydrated inorganic filler on which the amine is distributed.

Abstract: Molding compositions containing a phenol-aldehyde resin, a filler material and processed mineral fiber as a processing aid are described. The compositions are suited to be extruded and comminuted to produce a nodular product essentially uniform in size and useful in injection, transfer, and compression molding processes.

Abstract: Polyester moulding compositions and polyester resins resulting therefrom are rendered fire-protecting by incorporating in the moulding composition a combination of three materials: a source of carbon, such as e.g. pentaerythritol, a source of phosphoric acid, such as e.g. ammonium polyphosphate, and a source of non-inflammable gases such as melamine-formaldehyde, in proportions of 5-20%, 20-40% and 5-20% by weight respectively, calculated on the total weight of this combination plus polyester and monomer.

Abstract: A method of manufacturing a thermally expansible rubber tube for use in gas pipes and gas pipe joints. About 2 to 30 parts by weight of oxidized, thermally expansible graphite powder is mixed with 100 parts by weight of raw rubber, and a predetermined quantity of a curing agent and a cure accelerator are added to the rubber and graphite mixture, followed by its formation into a tubular shape.

Abstract: A process for dyeing textile materials, containing natural and/or synthetic fibers, in an aqueous liquor by means of dyes which are sparingly soluble or insoluble in water, in the presence of dyeing assistants, wherein the dispersant used is a water-soluble sulfonic acid which is derived from a random copolymer of olefins of 3 to 6 carbon atoms and styrene and/or substituted styrenes and/or their alkali metal salts or ammonium salts.

Abstract: An improved thermoplastic nylon molding resin comprising intimately mixed nylon molding resin and glass reinforcing agents in the presence of polyethylene terephthalate resin.

Abstract: A polyolefin composition having a high level of impact resistance and high temperature flow resistance comprising 30 to 90 weight percent resin containing greater than 50 to less than 75 weight percent of polyolefin and greater than 25 to less than 50 weight percent elastomer, and 10 to 70 weight percent filler.

Abstract: An improved friction material for brakes and clutches, in which asbestos is partly or completely replaced by an artificial mineral fibre, in particular a blown alumino-silicate fibre made from the mineral kaolin.

Abstract: A non-aqueous,water-soluble, quick-setting sizing composition suitable for application in the molten state to textile yarns of both continuous-filament and staple types, and for later removal by aqueous means, comprising a combination of a film-forming thermoplastic polymer with a melt-miscible viscosity reducer and solification promoter, and yarns so sized. The polymer protects and consolidates the yarn, while its companion component promotes the even application and particularly the quick set-up of the molten size. Optionally, if desired, water-soluble lubricants may also be added to increase the lubricity and flexibility of the sized yarn.