Polymerizing hydrogels including modifying compounds to comprise low amount of residual monomers and by-products and to optimize material properties
CA 2489685 A1 · Owner: The Procter & Gamble Company · Inventors: Goldman, Stephen A.; Goerth, Felix Christian; Stephan, Oskar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to polymerized hydrogels and processes to make such hydrogels, in particular hydrogel adhesives which are capable of attaching to mammalian skin and can be used in various personal care products such as waste-management articles, and a variety of functional articles to be worn by a human. The hydrogels described herein are characterized by very low amount of residual starting monomers, impurities and/or by-products that , could be formed during polymerization. Specifically the hydrogels are made by , adding scavengers and/or chain transfer agent prior to polymerization.It has been found, that upon addition of same scavengers the material properties of 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 June 20, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 20, 2023.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.