Flame-retarded polycarbonate molding materials having modified impact resistance
CA 2464618 A1 · Owner: Seidel, Andreas · Inventors: Seidel, Andreas; Wittmann, Dieter; Eckel, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a composition that contains: A) 50 to 90 parts by weight of a polycarbonate and/or polyestercarbonate b) 5 to 20 parts by , weight of rubber-modified vinyl(co)polymers C) 2 to 15 parts by weight of at , least one not easily volatized halogen-free flame retardant D) 0.1 to 6 parts , by weight of a silicate mineral E) 0 to 1 parts by weight of fluorinated polyolefin, and F) 0 to 10 parts by weight of polymer additives. The composition has a rubber content, based on the total composition of at least , 2 and of not more than 6 % by weight and the sum of parts by weight of A) to F) totals 100. The invention also relates to the shaped parts that are produced from the …
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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
- Filed October 14, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 14, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 14, 2024.
- 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.