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:
Nov. 28, 1995
Filed:
Jul. 22, 1994
Applicant:
Inventors:
Jean-Philippe Gasca, Saint-Jean De La Porte, FR;
Gerard Tardy, Grenoble, FR;
Assignee:
Vetrotex France, Chambery, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428391 ; 428375 ; 428378 ; 428392 ; 4284111 ; 428426 ; 65443 ; 65448 ; 524494 ;
Abstract
Glass fibers are coated with a sizing composition comprising an aqueous emulsion based on at least one polyolefin having grafted thereon at least one acid or anhydride which is neutralized by at least one alcoholamine, at least one aminosilane coupling agent, and at least one primary, secondary or tertiary aliphatic monoamine stabilizing agent which is miscible with water and which has a pK.sub.b value lower than the pK.sub.b value of the amine group of the coupling agent, plus 1. The glass fibers of the invention are intended more particularly for reinforcing polyolefin matrices such as polypropylene matrices.