Epoxy-polyester graft copolymers suitable for chip resistant coating composition i"
CA 1305262 C · Owner: E.I. Du Pont De Nemours And Company · Inventors: Kordomenos, Panagiotis I.; Dervan, Andrew H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hydroxy functional epoxy-polyester graft copolymer and novel, solvent-based thermosetting coating composition comprising said copolymer and polyfunctional hydroxy reactive crosslinking agent. The coating composition may be formulated as a hot sprayable high, solids coating composition suitable for use as a chip resistant automotive vehicle primer adapted for use on body panel areas subject to chipping by stones gravel and, other road debris. The composition may also be formulated as a high solids composition sprayable with conventional spraying equipment. Hydroxy-functional epoxy polyester graft copolymer is prepared by polymerization of lactone monomers in the presence of hydroxy …
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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 July 14, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 2009.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.