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. 25, 1992
Filed:
Feb. 13, 1991
Luciano M Parrinello, Allison Park, PA (US);
Narasimhan Raghupathi, Murrysville, PA (US);
PPG Industries, Inc., Pittsburgh, PA (US);
Abstract
Chemically treated glass shapes have a moisture-reduced residue of a chemical treating composition having: a first film forming polymer that is a thermoplastic polyester film forming polymer, a second film forming polymer that is an acrylic-type copolymer, at least one organosilane coupling agent selected from epoxy functional organosilane coupling agents and amino-functional organosilane coupling agents and mixtures thereof, at least one cationic lubricant and a carrier. The ratio of amounts of the first film forming polymer to the second film forming polymer is in the range of around 1:1 to 99:1. The chemically treated shapes can be in the form of beads, flakes, chopped or milled fibers, continuous fibers, strands, or bundles of fibers and yarn, and mats of continuous strand and/or chopped strand. The chemically treated glass fibers in mat form are paticularly suitable for reinforcing thermoplastic polyester polymers that are to be compression molded from the laminate of the polymer and the reinforcing material.