Ronald Paul Mathis

US Patent:

45489718, Oct 22, 1985

Filed:

Jul 30, 1984

Appl. No.:

6/626842

Inventors:

Robert J. Martinovich - Bartlesville OK
Ronald D. Mathis - Bartlesville OK
Roger T. Shiflet - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

C08K 322
C08K 340
C08K 534
C08L 8104

US Classification:

524101

Abstract:

Polymer compositions and method for improving processability of compositions of normally solid polymers of arylene sulfides by the addition of at least one of cyanurate and isocyanurate compounds in an amount effective to improve the processability of the composition. In a preferred embodiment the amount of cyanurate and isocyanurate in the total composition is in the range of about 0. 1 to about 10 weight percent. The invention is applicable to improving the processing characteristics and other properties of arylene sulfide polymers and filled arylene sulfide polymers.

US Patent:

44459416, May 1, 1984

Filed:

Jul 22, 1982

Appl. No.:

6/401033

Inventors:

Ronald D. Mathis - Bartlesville OK
Jerry O. Reed - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

C23G 502

US Classification:

134 3

Abstract:

A process for the removal of poly(arylene sulfide) deposits on metal surfaces is provided by contacting the deposit with at least one diaryl ether under temperature conditions and for a time sufficient to remove said poly(arylene sulfide) deposits. A process for the cleansing of metal parts having poly(arylene sulfide) deposits is also provided which comprises treatment with a diaryl ether, and thereafter contacting the ether treated part with an alcohol, washing the part with water, drying the part, and thereafter contacting the dried part with concentrated HNO. sub. 3 followed by water washing and drying.

US Patent:

44341229, Feb 28, 1984

Filed:

May 11, 1982

Appl. No.:

6/377233

Inventors:

Jerry O. Reed - Bartlesville OK
Ronald D. Mathis - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

C08K10000

US Classification:

264211

Abstract:

The heat stability of arylene sulfide resins, such as poly(p-phenylene sulfide) resin, is improved by the addition of cure retarders comprising phenolic amide or ester-based antioxidants. The resin compositions of the invention are particularly applicable for reducing gel formation during melt extrusion.

US Patent:

44475977, May 8, 1984

Filed:

Sep 24, 1982

Appl. No.:

6/422787

Inventors:

Ronald D. Mathis - Bartlesville OK
Jerry A. Reed - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

C08G 7514

US Classification:

528388

Abstract:

A method for adjusting the cure rate of a mixture of arylene sulfide polymer particles in which the particles of an arylene sulfide polymer mixture are classified by size groups, the size groups of classified particles are segregated, and at least one size group is removed from the mixture. In a further embodiment at least one size group of classified particles removed from one mixture is added to another mixture of polymer particles. In another embodiment the further use of the segregated size groups of classified particles is based upon a determination of the cure rate of at least one segregated size group of particles.

US Patent:

45432244, Sep 24, 1985

Filed:

Feb 3, 1984

Appl. No.:

6/576979

Inventors:

Jerry O. Reed - Bartlesville OK
Ronald D. Mathis - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

C08K 520
C08K 513
C08K 510

US Classification:

264211

Abstract:

The heat stability of arylene sulfide resins, such as poly(p-phenylene sulfide) resin, is improved by the addition of cure retarders comprising phenolic amide or ester-based antioxidants. The resin compositions of the invention are particularly applicable for reducing gel formation during melt extrusion.

US Patent:

45351171, Aug 13, 1985

Filed:

Nov 2, 1983

Appl. No.:

6/548049

Inventors:

Ronald D. Mathis - Bartlesville OK
Jerry O. Reed - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

C08K 509

US Classification:

524397

Abstract:

The heat stability of arylene sulfide polymers, such as poly(p-phenylene sulfide) is improved by the addition of cure retarders comprising metal sorbates and, optionally, an alkaline earth metal nitrite.

US Patent:

44789696, Oct 23, 1984

Filed:

Jun 22, 1983

Appl. No.:

6/506949

Inventors:

Jerry O. Reed - Bartlesville OK
Ronald D. Mathis - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

C08K 534
C08G 7514

US Classification:

524106

Abstract:

The heat stability of arylene sulfide resins, such as poly(p-phenylene sulfide) resin, is improved by the addition of cure retarders comprising an aminotriazole. The resin compositions of the invention are particularly applicable for reducing gel formation during melt extrusion.

US Patent:

44352212, Mar 6, 1984

Filed:

Jul 30, 1982

Appl. No.:

6/403434

Inventors:

Ronald D. Mathis - Bartlesville OK
Jerry O. Reed - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

C23G 502

US Classification:

134 2

Abstract:

A process for the removal of poly(arylene sulfide) deposits is provided which comprises contacting said deposits with a solution comprising an alkali metal hydrosulfide in a lactam. In addition, a process for the cleaning of metal parts having poly(arylene sulfide) deposits is provided by contacting the metal parts in the manner as described immediately above, contacting the metal part with a lower alkyl alcohol, washing said metal part with water, drying said metal part, contacting the dried part with concentrated HNO. sub. 3 followed by water washing and drying.