George R Hopkins

US Patent:

39564223, May 11, 1976

Filed:

Jan 31, 1975

Appl. No.:

5/545942

Inventors:

Akio Takahashi - Amherst NY
Geoffrey H. Smith - North Tonawanda NY
George C. Hopkins - Clarence NY

Assignee:

Hooker Chemicals & Plastics Corporation - Niagara Falls NY

International Classification:

C08L 6706

US Classification:

260873

Abstract:

Polyvinyl halide or polyvinyl halide graft copolymers intimately mixed with a polyester derived mainly from an halogenated bicycloheptene carboxylic acid or anhydride such as chlorendic acid or anhydride and an alkylene glycol or alkylene oxide such as ethylene glycol or ethylene oxide are provided. The graft copolymers of the invention are obtained by polymerizing a vinyl halide in bulk in contact with an olefin polymer. The graft copolymer compositions of the invention have good clarity and provide improved processing characteristics and increased impact strength without reduction in heat distortion resulting from the addition of the polyester. The improved impact strength polyvinyl halide compositions of the invention can include blends of the polyester of the invention with modifying compounds, such as alkyl methacrylate-butadiene/styrene graft polymer impact modifiers and halogenated polyvinyl chloride. Blends of vinyl halide polymers with the polyesters of the invention provide compositions having improved processability. A reduction in melt viscosity and fusion temperature can be obtained in the blends while maintaining or increasing heat distortion temperature.

US Patent:

40368106, Jul 19, 1977

Filed:

Nov 14, 1975

Appl. No.:

5/631966

Inventors:

George C. Hopkins - Clarence NY
D. Bruce Merrifield - Houston TX

Assignee:

Hooker Chemicals & Plastics Corporation - Niagara Falls NY

International Classification:

C08K 532
C08K 511
C08K 509

US Classification:

260 4575W

Abstract:

A polymeric composition containing more than 5% halogen can be improved in heat and light stability by the incorporation therein of small amounts of a novel stabilizer which is the metallic salt of the reaction product of an alpha-olefin with maleic anhydride. The stabilizers of the invention can be used either alone or in combination with conventional stabilizers for halogen containing polymeric materials.

US Patent:

42062918, Jun 3, 1980

Filed:

Mar 12, 1979

Appl. No.:

6/019974

Inventors:

Akio Takahashi - Amherst NY
Geoffrey H. Smith - North Tonawanda NY
George C. Hopkins - Clarence NY

Assignee:

Hooker Chemicals & Plastics Corp. - Niagara Falls NY

International Classification:

C08L 6706

US Classification:

525167

Abstract:

Polyvinyl halide or polyvinyl graft copolymers intimately mixed with a polyester derived mainly from an halogenated bicycloheptene carboxylic acid or anhydride such as chlorendic acid or anhydride and an alkylene glycol or alkylene oxide such as ethylene oxide are provided. The graft copolymers of the invention are obtained by polymerizing a vinyl halide in bulk in contact with an olefin polymer. The graft copolymer compositions of the invention have good clarity and provide improved processing characteristics and increased impact strength without reduction in heat distortion resulting from the addition of the polyester. The improved impact strength polyvinyl halide compositions of the invention can include blends of the polyester of the invention with modifying compounds, such as alkyl methacrylate-butadiene/styrene graft polymer impact modifiers and halogenated polyvinyl chloride. Blends of vinyl halide polymers with the polyesters of the invention provide compositions having improved processability. A reduction in melt viscosity and fusion temperature can be obtained in the blends while maintaining or increasing heat distortion temperature.

US Patent:

39337405, Jan 20, 1976

Filed:

Jan 2, 1974

Appl. No.:

5/430115

Inventors:

George C. Hopkins - Clarence NY
D. Bruce Merrifield - Williamsville NY

Assignee:

Hooker Chemicals & Plastics Corporation - Niagara Falls NY

International Classification:

C08G 600

US Classification:

260 4575W

Abstract:

A polymeric composition containing more than 5% halogen can be improved in heat and light stability by the incorporation therein of small amounts of a novel stabilizer which is the metallic salt of the reaction product of an alpha-olefin with maleic anhydride. The stabilizers of the invention can be used either alone or in combination with conventional stabilizers for halogen containing polymeric materials.

US Patent:

41559517, May 22, 1979

Filed:

Mar 1, 1976

Appl. No.:

5/662622

Inventors:

Akio Takahashi - Amherst NY
Geoffrey H. Smith - North Tonawanda NY
George C. Hopkins - Clarence NY

Assignee:

Hooker Chemicals & Plastics Corp. - Niagara Falls NY

International Classification:

C08L 6706

US Classification:

260869

Abstract:

Polyvinyl halide or polyvinyl halide graft copolymers intimately mixed with a polyester derived mainly from an halogenated bicycloheptene carboxylic acid or anhydride such as chlorendic acid or anhydride and an alkylene glycol or alkylene oxide such as ethylene glycol or ethylene oxide are provided. The graft copolymers of the invention are obtained by polymerizing a vinyl halide in bulk in contact with an olefin polymer. The graft copolymer compositions of the invention have good clarity and provide improved processing characteristics and increased impact strength without reduction in heat distortion resulting from the addition of the polyester. The improved impact strength polyvinyl halide compositions of the invention can include blends of the polyester of the invention with modifying compounds, such as alkyl methacrylate-butadiene/styrene graft polymer impact modifiers and halogenated polyvinyl chloride. Blends of vinyl halide polymers with the polyesters of the invention provide compositions having improved processability. A reduction in melt viscosity and fusion temperature can be obtained in the blends while maintaining or increasing heat distortion temperature.

US Patent:

40555810, Oct 25, 1977

Filed:

Nov 14, 1975

Appl. No.:

5/631967

Inventors:

George C. Hopkins - Clarence NY
D. Bruce Merrifield - Houston TX

Assignee:

Hooker Chemicals & Plastics Corporation - Niagara Falls NY

International Classification:

C07F 306

US Classification:

2604299

Abstract:

A polymeric composition containing more than 5% halogen can be improved in heat and light stability by the incorporation therein of small amounts of a novel stabilizer which is the metallic salt of the reaction product of an alpha-olefin with maleic anhydride. The stabilizers of the invention can be used either alone or in combination with conventional stabilizers for halogen containing polymeric materials.

Address:

612 Winding Way Dr, Monroe, NC 28110

Phone:

585 466-7738

VIN:

KNAGE123075151766

Make:

KIA

Model:

OPTIMA

Year:

2007

Author:

George E. Hopkins

ISBN #:

0674012755

Author:

George E. Hopkins

ISBN #:

0896723577

Author:

George E. Hopkins

ISBN #:

0960970800

Author:

George W. Hopkins

ISBN #:

0892522208