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:
Sep. 02, 2008
Filed:
Dec. 19, 2003
Henri Beerda, Assen, NL;
Ronald Boelman, Stadskanaal, NL;
Jacob Cornelis Dijt, Elede, NL;
Bertho Van DE Heisteeg, Vries, NL;
Johannes Leonardus Tabak, Zuidhorn, NL;
Henri Beerda, Assen, NL;
Ronald Boelman, Stadskanaal, NL;
Jacob Cornelis Dijt, Elede, NL;
Bertho van de Heisteeg, Vries, NL;
Johannes Leonardus Tabak, Zuidhorn, NL;
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
The present invention is directed to sizing compositions for glass fibers and glass fiber reinforced thermoplastic resins. The sizing composition comprises a maleic anhydride copolymer. Thermoplastic polyamide resin articles reinforced with glass fibers at least partially coated with a residue of the sizing composition can demonstrate a surprising improvement in strength of the reinforced polyamide resin when lubricated with a fatty acid metal salt and in the hydrolysis resistance when exposed to boiling water/ethylene glycol medium.