Chevron Research Company

Phillip H Parker

Gar L Woo

Robert Bacskai

Carroll J Wedel

Carl S Weisner

Carl B Olson

Reaction products of C.sub.9 -C.sub.30 alkylbenzenes with styrene and sulfonated derivatives thereof and processes for preparing such products and derivatives. The sulfonate salts of reaction products are especially useful as detergents.

Styrene alkylbenzene copolymers and sulfonates thereof and method of

Polyarylate polymers derived from (A) substituted phenolphthalein compounds or mixtures of these compounds with other bisphenols, and (B) a mixture of isophthalic and terephthalic acid. Also disclosed are polyarylate alloy compositions comprising a phenolphthalein polyarylate and a polymer resin selected from polybisphenol A carbonate and polystyrene.

Alkyl substituted phenolphthalein polyarylate polymer and alloy

Polyarylate polymers derived from (A) mixtures of bis(hydroxyphenyl)fluorene compounds with anthracene bisphenols, and (B) a mixture of isophthalic and terephthalic acid. Also disclosed are polyarylate alloy compositions comprising a bis(hydroxyphenyl)fluorene polyarylate and a polymer resin selected from polybisphenol A carbonate and polystyrene.

Bis(hydroxyphenyl)fluorene polyarylate polymers and alloys

Polyarylate polymers derived from (A) mixtures of 5-keto-bis(hydroxyphenyl)anthracene compounds with other bisphenols and (B) a mixture of isophthalic and terephthalic acid. Also disclosed are polyarylate alloy compositions comprising a 5-keto-bis(hydroxyphenyl)anthracene polyarylate and a polymer resin selected from polybisphenol A carbonate and polystyrene.

5-keto-bis(hydroxyphenyl)anthracene polyarylate copolymers and alloys

Poly-2-pyrrolidone polymer and compositions having improved thermal stability via the capping of at least a portion of the amino and/or carboxy end group of the polymer and processes for preparing such polymers and compositions. The processes are characterized by the reaction of the polymer with alkanolamines and/or alkyl polyamines. The products afford improved melt processability.

Stabilized polypyrrolidone end capped with alkanolamine and process for

Poly-2-pyrrolidone polymer compositions having improved melt processability via the capping of at least a portion of the amino and/or carboxy end group of the polymer and the incorporation therewith of certain epoxide organic isocyanate and/or polyol additive compositions. The melt extrusion of such compositions is also disclosed.

Stabilized polypyrrolidone composition

Poly-2-pyrrolidone compositions having improved resistance to thermal reversion to pyrrolidone via the incorporation of certain polyesters and methods of melt extruding such compositions.

Poly-2-pyrrolidone composition having improved stability and method of

Film extrusion-fibrillation and film extrusion-narrow slitting processes for preparing fibrillated or narrow-width thermoplastic tape. The process is characterized by conducting the extrusion-orientation stage and the slitting or fibrillation stage as separate operations, thereby minimizing process disruptions caused by film defects and breakage, and further characterized by certain film shrinkage and heat treatment modifications which facilitate such separate stage operation. The fibrillated tapes can be twisted into cordage products. The narrow-width tapes are used to make carpet backing and indoor-outdoor carpet.

Method for extruding slitting and fibrillating thermoplastic film tapes

A grass-like carpet comprises 1-20 plies of a fibrous web needle-punched into a substrate. The fibrous web is made from a uniaxially oriented polymer film.

Needle-punched grass-like carpets

Hydroquinone and alkylhydroquinone are thermal stabilization additives for normally solid polypyrrolidone at melt temperatures.

Extrusion stabilization of polypyrrolidone by hydroquinones

Alkyl epoxides are thermal stabilization additives for normally solid polypyrrolidone at melt temperatures.

Epoxide thermal stabilization additive for polypyrrolidone

Extra-wide, heat-sealed nonwoven sheets of thermoplastic synthetic polymer monofilaments are prepared by folding said sheets in layers with heat-insulating fabric between said layers before contact with heating and pressing means to effect heat sealing, followed by removal of the insulating fabric and heat sealing of the fold areas.

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San Rafael, CA, United States of America

Phillip H Parker