Abstract: A process for the production and use of branched polymers of arylene sulfide in which (A) a reaction mixture of (1) at least one p-dihalo-benzene, (2) at least one alkali metal sulfide, (3) at least one organic amide, (4) water in an amount of about 1.0 mole to about 2.

Abstract: Polyamide and polyacrylamide are useful as mold corrosion inhibitors when incorporated into a poly(arylene sulfide).

Abstract: A process for the production and use of branched polymers of arylene sulfide in which (A) a reaction mixture of (1) at least one p-dihalo-benzene, (2) at least one alkali metal sulfide, (3) at least one organic amide, (4) water in an amount of about 1.0 mole to about 2.

Abstract: A process for removing poly(arylene sulfide) deposits on fiber spinning equipment parts is provided which comprises extruding a molten olefin polymer through the particular part. In the process of extrusion, the deposits are removed.

Abstract: A composition suitable for molding applications containing from about 30 to about 50 weight percent poly(arylene sulfide), about 10 to about 30 weight percent glass fibers, about 30 to about 60 weight percent of a component chosen from glass beads, fused silica and mixtures thereof, from about 0 to about 3 weight percent colorant, and from about 0.5 to about 2 weight percent of a processing aid chosen from among N,N'-alkylenebis(alkanamides), glycerides and phosphated glycerides of saturated fatty acids containing from 10 to 30 carbon atoms, mono- and dialkanolamides derived from saturated fatty acids and esters derived from a saturated long-chained fatty acid and long-chained saturated aliphatic alcohol.

Abstract: A process for the production of branched polymers of arylene sulfide in which a reaction mixture of (1) at least one p-dihalobenzene, (2) at least one alkali metal sulfide, (3) at least one organic amide, (4) water in an amount of about 1.0 mole to about 2.4 moles per mole of alkali metal sulfide, and (5) at least one alkali metal carboxylate is contacted under polymerization conditions for a time sufficient to form arylene sulfide polymer and the arylene sulfide polymer formed in said reaction mixture is contacted under polymerization conditions with a polyhaloaromatic compound having more than two halogen substituents per molecule for a time having a range of up to about 75 minutes before entering upon termination of the polymerization process. An embodiment of the process in which the alkali metal sulfide is produced in situ by the reaction of an excess of alkali metal hydroxide with alkali metal hydrosulfide.

Abstract: A process for the production of branched polymers of arylene sulfide in which a reaction mixture of (1) at least one p-dihalobenzene, (2) at least one alkali metal sulfide, (3) at least one organic amide, (4) water in an amount of about 1.0 mole to about 2.4 moles per mole of alkali metal sulfide, and (5) at least one alkali metal carboxylate is contacted under polymerization conditions for a time sufficient to form arylene sulfide polymer and the arylene sulfide polymer formed in said reaction mixture is contacted under polymerization conditions with a polyhaloaromatic compound having more than two halogen substituents per molecule for a time having a range of up to about 75 minutes before entering upon termination of the polymerization process. An embodiment of the process in which the alkali metal sulfide is produced in situ by the reaction of an excess of alkali metal hydroxide with alkali metal hydrosulfide.

Abstract: The adhesion of poly(arylene sulfide) coatings to metal substrates is improved by incorporating an effective amount of finely divided manganese dioxide into a poly(arylene sulfide) primer coat to prime the metal substrate. The primer coat can subsequently be coated with a poly(arylene sulfide) coating or with any other suitable finish coating which will adhere to the primer coat.

Abstract: The affinity of a poly(arylene sulfide) resin composition for basic dyes is improved by contacting the composition with a sulfonating agent selected from the group consisting of sulfur trioxide, fuming sulfuric acid, and chlorosulfonic acid.

Abstract: A pipe coating composition consisting essentially of a binder, mineral aggregates, a finely divided mineral filler and synthetic organic fibers exhibits improved cracking time as compared to a pipe coating composition containing glass fibers instead of the organic fibers.

Abstract: Tenacity and boiling water shrinkage of poly(arylene sulfide) fibers are improved by a heat treatment at temperatures of at least about 100.degree. C (212.degree. F) but below the temperature at which fibers begin to stick to each other, for a time period sufficient to attain desired tenacity or boiling water shrinkage.

Abstract: A pipe coating composition consisting essentially of a binder, mineral aggregates, a finely divided mineral filler and synthetic organic fibers exhibits improved cracking time as compared to a pipe coating composition containing glass fibers instead of the organic fiber.

Abstract: High molecular weight fluorocarbon polymer is incorporated into arylene sulfide polymer coating dispersions by (a) dry milling a pigment with the fluorocarbon polymer and (b) thereafter adding the arylene sulfide polymer and a liquid capable of wetting said fluorocarbon-pigment mixture and subjecting same to intensive milling.