Compositions containing hollow microspheres
CA 2083676 A1 · Owner: Oatey Company · Inventors: Naton, Paul E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title: COMPOSITIONS CONTAINING HOLLOW MICROSPHERES Abstract of the Disclosure, A composition is described with comprises a mixture of (A) from about 5% to about 60% by weight of at least one water-insoluble polymer;, (B) from about 1% to about 30% by weight of inorganic or synthetic resinous hollow microspheres; and (C) from about 20% to about 70% of at ieast one volatile organic liquid which is a solvent for the polymer of (A). The compositions also may contain (D) at least one solid particulate inorganic filter. Adhesive compositions such as solvent cements prepared in accordance with the present invention are characterized as low VOC compositions wherein the VOC is, for example, less …
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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 November 24, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 24, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 24, 2014.
- 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.