Compatible polymer mixtures (ii)
CA 1339041 C · Owner: Terbrack, Ulrich · Inventors: Terbrack, Ulrich; Siol, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to compatible polymer mixtures PM comprising two disparate polymer components tA) and (B), wherewith, (A) is a polymer of formula (?) (I), present in the mixture in the amount of 1-99 wt.% and comprising a copolymer comprised of the following monomer units:, a) CH2 = , and, b) CH2 = , and B) A polyalkyl methacrylate, present in the mixture in the amount of 99-1 wt.% and comprised of units of one or more monomers of formula ??:, CH2 = , wherein R1 represents an aliphatic hydrocarbon group with 1-4 C atoms;, R2 represents hydrogen or methyl; R3 represents a non-cyclic aliphatic hydrocarbon group with 2-8 C atoms;, x represents 10-90 wt.% based on the amount of, polymer …
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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 April 1, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 1, 2014.
- 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
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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.