Tracey Michelle Thompson

US Patent:

49687484, Nov 6, 1990

Filed:

Apr 20, 1989

Appl. No.:

7/341289

Inventors:

Tracey L. Thompson - Vienna WV
Peter H. Thompson - Parkersburg WV

Assignee:

G E Chemicals, Inc. - Parkersburg WV

International Classification:

C08L 7112

US Classification:

525 92

Abstract:

The invention provides thermoplastic blends of a polyphenylene ether, a polystyrene, a substantially hydrogenated styrene-butadiene block copolymer, and a rubbery acrylate polymer; said blends may have improved thermal stability, gloss, color, and processability, heat distortion, and impact strength.

US Patent:

49239244, May 8, 1990

Filed:

Mar 22, 1988

Appl. No.:

7/171801

Inventors:

Thomas S. Grant - Vienna WV
Ronald L. Jalbert - Parkersburg WV
David Whalen - Parkersburg WV
Brenda A. Bartges - Parkersburg WV
Tracey L. Thompson - Vienna WV

Assignee:

Borg-Warner Chemicals, Inc. - Parkersburg WV

International Classification:

C08L 7700
C08L 5900
C08L 5302

US Classification:

525 66

Abstract:

Thermoplastic blend compositions comprise a polyamide, a carboxylated polyphenylene ether resin and an impact modifier. The carboxylated polyphenylene ether resin is the product of melt mixing a mixture consisting essentially of polyphenylene ether resin and a minor amount of an ethylenically unsaturated carboxylic acid compound. The impact modifier may comprise a graft of a vinyl aromatic polymer on a rubbery substrate; a vinyl aromatic-conjugated diene-vinyl aromatic triblock polymer; a carboxylated vinyl aromatic-conjugated diene-vinyl aromatic triblock polymer; a carboxylated alpha-olefin polymer; a copolymer of an alpha-olefin compound and an unsaturated carboxylic compound; a graft of a rigid acrylic polymer on a rubber substrate; a linear low density polyethylene; or mixtures thereof.