Modified substrate comprising hydrophilic polymer and produced via irradiation
CA 2496096 A1 · Owner: Takahashi, Hiroshi · Inventors: Takahashi, Hiroshi; Ueno, Yoshiyuki; Sugaya, Hiroyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A modified substrate comprising a hydrophilic polymer in which the amount of soluble hydrophilic polymers contained is 15 wt.% or less and to which the sticking of human platelets amounts to 10 platelets / 4.3 x 103 µm2 or less; and a process for producing a modified substrate comprising exposing to , radiation a substrate while in contact with an aqueous solution containing a hydrophilic polymer and an antioxidant. Thus there are provided a modified , substrate having a hydrophilic polymer immobilized on a substrate surface which modified substrate ensures high blood compatibility and a process for , producing the same.
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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 August 20, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 20, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 20, 2025.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.