Bonding resin composition
CA 1210884 A · Owner: Hercules Incorporated · Inventors: Liu, Chia-Seng
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of Disclosures, Disclosed is a bonding resin composition composed of a blend consisting essentially of (a) maleic anhydride-modified stereoregular polypropylene having a combined maleic anhydride content of about 0.5-0.8% by weight of said modified polypropylene and (b) base polymer material at about 25 parts by weight per part by weight of said maleic anhydride-modified polypropylene. The base polymer material is selected from a group of two combinations. One combination consisting essentially of stereoregular polypropylene and essentially crystalline sequentially polymerized, propylene-ethylene product having a combined ethylene content of about 25% by weight of the product. The weight …
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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 2, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 2, 2003.
- 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
Timeline From CIPO dates
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.