Compatible polymer mixtures
CA 1332038 C · Owner: Terbrack, Ulrich · Inventors: Siol, Werner; Terbrack, Ulrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a molded object comprising a first molded polymer P1 coated with a second polymer P2. Polymer P1 comprises at least 30% by weight of monomers having Formula I:, (I), wherein R1 is hydrogen or methyl R2 is a, hydrocarbon group containing 1-18 carbon atoms the polymer P1 containing less than 20 weight% styrene or .alpha.-methyl styrene. Polymer P2 comprises at least 30% by weight of monomers having Formula II:, (II), wherein R3 is hydrogen methyl or a group -CH2-X-, CHR5R6, X is -C(O)-Z- -Z-C(O)-, -Z-C(O)-Z'-, wherein Z is oxygen or -NR4 Z' is oxygen or NR4, and R4 is hydrogen or an alkyl group with 1-12 carbon atoms, and -CHR5R6 is an aliphatic or araliphatic …
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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 20, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 20, 2011.
- 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.