Chemically treated glass fibers for reinforcing thermosetting polymer matrices
CA 1340052 C · Owner: Ppg Industries Ohio, Inc. · Inventors: Watson, James Chesley; Melle, David Thomas; Raghupathi, Narasimhan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Chemically treated glass fibers having good processability are useful in producing fiber reinforced polymeric matrices wherein the, glass fibers have controlled wettability and are not detrimental to the weatherability of the fiber reinforced polymeric matrices. The chemically treated fibers have the dried residue of an aqueous chemical treating composition having a bisphenol A polyester film forming polymer compatible with and soluble in the matrix polymer poly(vinyl acetate), polymeric film former acryloxy-containing or methacryloxy-containing organo coupling agent in an effective coupling agent amount cationic, fiberous lubricant in an effective lubricating amount with or without a, …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 22, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.