Phillips Petroleum Company

Dale O Tieszen

Lacey E Scoggins

Oren L Marrs

Robert E Reusser

Jennings P Blackwell

Jerry O Reed

James T Edmonds, Jr

James S Dix

Gerald E Hagler

Jack G Scruggs

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 2.4 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, (B) the reaction mixture is contacted with carbon dioxide, (C) volatiles are removed from the reaction mixture, (D) arylene sulfide polymer is recovered from the reaction mixture, (E) the recovered polymer is washed, and (F) the polymer is further processed, as by molding, extruding into film or sheet, or used as a coating. 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. An embodiment in which carbon dioxide is contacted with arylene sulfide polymer formed in the reaction mixture to stabilize the polymer. A molded object, a film, a sheet, or a coating composition that is the product of the reaction and work-up process above.

Arylene sulfide polymer, contacted with polyhaloaromatic compound

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

Mold corrosion inhibitors

Arylene sulfide polymerization; arylene sulfide polymer treated with

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.

Process for cleaning metal surfaces

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. A method for improving processability of a composition containing from about 30 to about 50 weight percent poly(arylene sulfide), from about 10 to about 30 weight percent glass fibers, from about 30 to about 60 weight percent of a component chosen from glass beads, fused silica and combinations thereof and from 0 to about 3 weight percent colorant in which there is admixed with this composition a processing aid in the amount of about 0.5 to about 2 weight percent with the processing aid chosen from N,N'-alkylenebis(alklanamides), 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.

Poly(arylene sulfide) composition suitable for molding

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. An embodiment in which carbon dioxide is contacted with arylene sulfide polymer formed in the reaction mixture to stabilize the polymer. A melt spun fiber that is the product of this reaction.

Preparation of branched chain arylene sulfide polymer

Preparation of branched polymers of arylene sulfide

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.

Poly(arylene sulfide) resin coating

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.

Basic dyeing of poly(arylene sulfide) resins

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.

Pipe coating composition

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.

Poly(arylene sulfide) fibers

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.

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.

Growing community of inventors

Bartlesville, OK, United States of America

Dale O Tieszen