Elastomer based adhesive compositions
CA 1195793 A · Owner: Raychem Corporation · Inventors: Toy, Lester T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A substantially solvent-free adhesive composition consists essentially of an elastomer and tackifier 3, metal oxide and, optionally, a plasticizer. The elastomer is selected from the group consisting of polar elastomers and unsaturated elastomers which have at least 5 mole percent unsaturation, said elastomer being a non-crystalline elastomer or an elastomer which has a slow rate of crystallization such that after a time period of at least 100 hours has elapsed following subjecting the elastomer to a temperature of 70°C for 30 minutes, the elastomer has a room temperature Shore A hardness of less than 60. The adhesive compositions can be formed into a shaped article such as of a tape, film, …
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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 October 22, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2002.
- 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.