Antistatically finished polymers
CA 2249892 A1 · Owner: Grob, Markus · Inventors: Minder, Ernst; Grob, Markus; Pfeiffer, Jurgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a polymer composition comprising (a) high-density polyethylene (HDPE), polyamide 11 polyamide 12 (PA 11, PA 12), a natural or synthetic elastomeric polymer or copolymer or a natural or synthetic elastic vulcanisate (b) a polyoxyalkylene of formula, R1-O-CH(R3)-CH2-O-n-CH2-CH(OH)p-CH2-Oq-C(O)r-R2 (I) wherein, R1 is H, C1-C24alkyl, C2-C24alkenyl CH2=CH-C(O) or CH2=CCH3-C(O), R2 is C1-C24alkyl C2-C24alkenyl, CH2-COOH, or N(C1-C20alkyl)2 R3 is H or CH3, n is a number higher than or equal to 2 p is a number from 1 to 6, and, q and r are independently of each other 0 or 1; and (c) a salt of formula {MZ+ a A(az/b)-b} wherein, M is a z-valent alkali metal cation alkaline …
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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, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 14, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 14, 2020.
- 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.