Eastman-kodak Company

Joseph J Watkins

David R Fagerburg

Paul B Lawrence

Mark Rule

Winston J Jackson, Jr

Shriram Bagrodia

Jerry Steven Fauver

Herbert F Kuhfuss

Steven C Gedon

Ernest W Arnold

Disclosed is a composition comprising an admixture of

Blends of copoly(arylene sulfide) and poly(aryl sulfone)

Disclosed is composition comprising an admixture of

Blends of copoly(arylene sulfide) and polcarbonate

Blends of copoly(arylene sulfide) and ethylene-propylene rubber

Blends of copoly(arylene sulfide) and polyamide

Disclosed is a process for preparing a final copoly(arylene sulfide) by contacting an original copoly(phenylene sulfide) with a poly(phenylene sulfide) in the melt phase. The final copoly(arylene sulfide) exhibits an enhanced rate of crystallization.

Process for the preparation of copoly(arylene sulfide) having an

A process for preparing a polymer having repeating units corresponding to the structure ##STR1## wherein y is in the range of 0.005 to 0.15, x is in the range of 0.02 to 0.25, n is at least 200, and R a divalent aromatic radial. The polymer is prepared by reacting a diiodoaromatic compound and elemental sulfur.

Copoly(phenylene sulfide)

A process for preparing a polymer having repeating units corresponding to the structure ##STR1## wherein R is ##STR2## y is in the range of 0.005 to 0.10, x is in the range of 0.01 to 0.50 when R is ##STR3## x is in the range of 0.01 to 0.30 when R is ##STR4## and n is at least 200. The polymer is prepared by reacting a diiodoaromatic compound and elemental sulfur.

A process for producing elemental iodine and a copoly(arylene sulfide) corresponding to the structure ##STR1## wherein y is in the range of 0.001 to 0.15, x is in the range of 0.02 to 0.65 and n is at least 100, consisting essentially of (1) reacting at a temperature above about 175.degree. C., a mixture of diiodobenzene and diiodobiphenyl and elemental sulfur to produce the copoly(arylene sulfide), and (2) recovering the elemental iodine.

A process for preparation of a copoly(arylene sulfide) which has a decreased amount of disulfide radicals and corresponds to the structure ##STR1## wherein A is a divalent substituted or unsubstituted aromatic radical, x is in the range of 0.45 to 0 and n is at least 50,

Process for the preparation of copoly(arylene sulfide) having a

A process for preparation of a copoly(arylene sulfide) corresponding to the structure ##STR1## wherein A is a divalent substituted or unsubstituted aromatic radical, T is a monovalent aromatic radical, x is in the range of 0.5 to 0.001 and n is an integer from 1 to 100.

Terminated copoly(arylene sulfide) of low molecular weight

A copoly(arylene sulfide) corresponding to the structure ##STR1## wherein A is a divalent substituted or unsubstituted aromatic radical, T is a monovalent aromatic radical, x is n the range of 0.5 t 0.001 and n is at least 100.

Terminated copoly(arylene sulfide)

A process comprising heating for a sufficient period of time and at a temperature in the range of the glass transition temperature of the polymer to 5 degrees C below the melting point of the polymer, a solid, comminuted, copoly(arylene sulfide) prepared by reacting at a polymer producing temperature a mixture of a diiodoaromatic compound and elemental sulfur which contains less than 0.05 weight percent carbon, the copoly(arylene sulfide) corresponding to the structure

Preparation of low color copoly(arylene sulfide) by heating

A process for preparing a copoly(arylene sulfide) corresponding to the structure

Process for preparation of copoly(arylene sulfide)

A composition comprising an admixture of (A) from 99.9 to 90 weight percent, based on the weight of the admixture, of a polymer having repeating units corresponding to the structure ##STR1## wherein y is in the range of 0.001 to 0.15, x is in the range of 0.01 to 0.50 and n is at least 100, and (B) from 0.1 to 10 weight percent, based on the weight of the admixture, of a poly(phenylene sulfide) corresponding to the structure ##STR2## where r is at least 25.

Growing community of inventors

Kingsport, TN, United States of America

Joseph J Watkins