The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 1991
Filed:
Nov. 06, 1989
Joseph M Bohen, King of Prussia, PA (US);
Gerald H Reifenberg, East Windsor, NJ (US);
Atochem North America, Inc., Philadelphia, PA (US);
Abstract
Flame retardancy of polyphenylene ether, polyolefin and polyethylene terphthalate resins and resin blends is increased by blending with the resin a flame retarding amount of a halogenated polyester which is the reaction product of a halogenated phthalic acid or phthalic anhydride with an epoxide or hydroxy compound containing at least two hydroxyl groups. The polyphenylene ether resin may include homopolymers or copolymers of polyphenylene ethers or blends of polyphenylene ethers with vinyl aromatic resins such as styrene polymers and copolymers. The flame retarding polyesters are also effective as processing aids in improving the flowability and moldability of the resins during melt processing.