Silicon containing polyacetal copolymer and manufacturing method thereof
CA 1312979 C · Owner: Hijikata, Kenji · Inventors: Hijikata, Kenji; Kageyama, Yukihiko; Nakane, Toshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
65702-312, Abstract of the Disclosure, A silicon-containing polyacetal copolymer comprises silicone oil units having the formula (A) and polyacetal units:, (A), (where R1 stands for an alkyl or phenyl group; R2 a diva-, lent organic group; X, a group selected from among -NH2 -OH, , -R4OH, -R5COOH, -R6COOR7, -R8 and OR9 R3 representing a divalent organic group R4 ? R6 alkylene, groups with number of carbon atoms 1 ? 10 R7 ? R9 alkyl, groups with number of carbon atoms 1 ? 10 and n a number, of 5 ? 1000). The silicon-containing polyacetal copolymer has excellent impact, water and wear resistance.
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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 January 19, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 19, 2010.
- 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.