Abstract: Halogenated compounds of the formula ##STR1## wherein each X is independently selected from the group consisting of hydrogen, chlorine, bromine and fluorine, each X.sub.1 is independently selected from the group consisting of hydrogen, chlorine, bromine, fluorine and alkyl or alkoxy of 1 to 10 carbon atoms and halogen-substituted alkyl or alkoxy of 1 to 10 carbon atoms and each Y and Y.sub.1 is independently selected from the group consisting of hydrogen, chlorine, bromine, fluorine, aryl, alkyl or alkoxy of 1 to 10 carbon atoms and halogen-substituted alkyl or alkoxy of 1 to 10 carbon atoms, and a process for preparing these compounds are provided. These compounds are useful as flame retardant additives for various polymers.

Abstract: Described herein is a process for preparing polyarylates of improved color which comprises reacting a diester derivative of a dihydric phenol with an aromatic dicarboxylic acid in the presence of from about 10 to about 60 weight percent of at least one cycloaliphatic, substituted aromatic or heteroaromatic compound, which compounds contain at least one benzylic and/or tertiary hydrogen atom, at a temperature of from about 260.degree. to about 350.degree. C. Optionally, the process may be carried out in the presence of a magnesium, manganese, or zinc catalyst.

Abstract: The invention relates to halogenous polyesters with the recurrent general formula ##STR1## in which at least part of the R's, e.g.

Abstract: The invention relates to a linear aromatic polyester of enhanced hydrolytic stability comprising bisphenol and dicarboxylic acid monomer residues which contains carboxylate ester end groups derived from a fluoro aliphatic alcohol of 1 to 45 carbon atoms. The invention also includes the process of preparing the polyester.

Abstract: A new composition is described comprising a synthetic, artificial or natu polymer and a flameproofing additive imparting self-extinguishing properties to the composition and to the articles, such as moulded, spun or woven articles, made therefrom, said additive being the product of the reaction of melamine with acidic compounds, such as organic acids or anhydrides and inorganic acids. The process for making said additive by said reaction, preferably in the presence of water, is also described. The said composition may be made by introducing said additive in any manufacturing stage, viz. to the monomers (if the polymer is a synthetic one), to the molten polymer, to polymer solutions such as viscose dope, to polymer chips during extrusion, or to finished products e.g. by applying a finish to fabrics.

Abstract: There are described linear aromatic polyesters of a bisphenol and a dicarboxylic acid having terminal carboxylate ester substituents of an aliphatic monofunctional alcohol of 8 to 45 carbons. The polyesters have enhanced hydrolytic stability compared to conventional polyesters of bisphenol and a dicarboxylic acid. Low molecular weight polyesters of the invention have improved stability on processing compared to comparable conventional polyesters of a bisphenol and a dicarboxylic acid. Processes for preparing the polyesters are also disclosed.

Abstract: The invention comprises a method for the color stabilization of iodoalkyne carbamates by the addition thereto of selected epoxy compounds. The epoxy compounds which thus function as stabilizers may be employed as a part of solutions containing the iodoalkyl carbamates, or they may be employed as a part of the films, coatings or compositions containing the iodoalkyne compounding.

Abstract: This invention provides a blend of poly(p-methylstyrene) and a styrene-conjugated diolefin block copolymer containing between about 60 weight percent and about 80 weight percent styrene; the weight ratio of poly(p-methylstyrene: styrene-conjugated diolefin block copolymer being between about 70:30 and about 40:60.

Abstract: Oligomers of hydroxy terminated polysulfones are extended to high molecular weight polysulfones by carbonate, ester, ether or silyl ether linkages.

Abstract: This invention is directed to a process for stabilizing halogenated polymers by the addition of effective amounts of at least one aromatic triazole. More particularly, the invention is directed to the addition of at least one aromatic triazole to halogenated polymers which contain zinc ions.

Abstract: This development is concerned with aromatic thermoplastic polycarbonates with special chain terminators which give the polymers enhanced hydrolysis resistance and impact toughness. These chain terminators are alkyl substituted monohydroxy phenyls in which each phenyl is substituted by one alkyl group having 8 or 9 carbon atoms and about 47 to 89% of its hydrogen atoms trisubstituted on carbon atoms with up to about 20% of the substituents in the ortho position and the balance at the para position. This development is also concerned with a process for synthesizing such polymers by using such chain terminators as reactants in generically known synthesis methods for polycarbonates.

Abstract: Block copolymers are prepared by heating at above 250.degree. C. (i) a halophenate, (ii) dihalobenzenoid compound plus bisphenate, and/or (iii) a polymer formed from (i) or (ii) having at least one phenate end group, said halophenate and/or dihalobenzenoid compound containing SO.sub.2 groups ortho or para to the halogen atoms, in the presence of a suspension of a crystalline polyetherketone or etherketone/sulphone copolymer.

Abstract: An asphalt base stock comprising a solvent refined asphalt having a penetration less than 25 and low ductility mixed with an asphalt cement. The base stock has a low penetration, 25-45, but unexpected high ductility, 150+. The base stock is especially suited for emulsification. When mixed with soils and aggregates, as for road surfaces, the stabilized product exhibits a significant increase in bearing strength over comparable asphalt-emulsion pavements and hot-mix asphalt pavements.

Abstract: A blend comprising (1) 20 to 70 weight percent of a styrene polymer, and (2) 30 to 80 weight percent of a resinous copolymer having a polymerized monovinyl-substituted aromatic compound block and a polymerized monovinyl-substituted aromatic compound/conjugated diene random copolymer block. Such blends have been found to possess outstanding toughness and excellent clarity.

Abstract: The invention entitled "Polymers containing polyalkylpiperidines and use thereof as stabilizers" provides a class of polymers in which groups containing sterically hindered polyalkylpiperidines are linked in the main chain of the polymers via bridging members containing 2-hydroxy-1,3-trimethylene groups.The polymers show superior stabilizing effects for various synthetic polymers such as polyolefins against degradation thereof induced by light and/or heat. The polymers have advantages, as compared with known stabilizer compounds, that they hardly volatile upon processing with heating or during storage of articles containing thereof, and that they are resistant to extraction with solvents from articles containing thereof.

Abstract: Polymeric polyesters containing a 2,2,6,6-tetralkyl piperidine moiety in the repeating unit are disclosed as light stabilizers for polymers subject to degradation by ultra-violet light.

Abstract: A process is provided for producing a pressure-sensitive carbonless record sheet comprising the steps of preparing a hot melt coating composition, the hot melt coating composition having a melting point of from about 60.degree. C. to about 140.degree. C. The hot melt coating composition comprises a chromogenic material and a solid alkane dioic acid. The hot melt coating composition is heated to a temperature above its melting point and the heated coating composition is applied to a substrate, the coating composition being applied at a coat weight of from about 0.2 pounds to about 8.0 pounds per 3300 square feet of substrate. The coating composition is set by cooling the coated substrate. A pressure-sensitive carbonless record sheet comprising a substrate having a plurality of surfaces and at least one surface of which is coated with about 0.2 pounds to about 8 pounds per 3300 square feet of a set hot melt coating composition is produced.

Abstract: A flame retardant for imparting excellent flame retardancy to polyamides used as engineering plastics, is a reaction product obtained by reacting a benzenesulfonic acid type compound having the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 respectively represent H, SO.sub.3 H, NH.sub.2, COOH, OH, CN or NO.sub.2, with dicyandiamide or melamine.

Abstract: An aqueous emulsion of a multi-component synthetic resin capable of forming a film having superior properties is obtained by emulsion-polymerizing ethylene and styrene in a first step, and emulsion-polymerizing ethylene and a vinyl ester in a second step in the presence of the aqueous emulsion obtained in the first step.

Abstract: Improvement in the weathering properties of polyolefin resins has been achieved by intimate compositions comprising Ziegler-process crystalline polyolefins containing halogen-magnesium compounds as catalytic carrier residues, and organic phosphorus compounds such as organic phosphites. The compositions may contain auxiliary components normally used in polyolefin resins; antioxidants and/or ultraviolet absorbers are especially useful.