Polyester molding composition
CA 2365816 A1 · Owner: Hager, Harald · Inventors: Hager, Harald; Peirick, Heinz; Schmitz, Guido
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A molding composition which comprises the following components: I. from 60 to 96.6 parts by weight of thermoplastic polyesters II. from 3 to 39.5 parts by weight of an impact-modifying component which contains anhydride groups, III. from 0.4 to 20 parts by weight of a copolymer which contains units of the monomers, a) .alpha.-olefin, b) acrylic compound and also, c) olefinically unsaturated epoxide carboxylic anhydride, carboximide, oxazoline or oxazinone where the total of the parts by weight of components I II and III is 100, has, improved low-temperature impact strength.
Read the whole patent
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 December 19, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 19, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 2023.
- 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.