Silicone emulsion having improved freeze/thaw resistance
CA 1313284 C · Owner: Dow Corning Corporation · Inventors: Bakken, Kathy Lynn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of improving the freeze/thaw stability of an anionically stabilized silicone emulsion useful as a sealant, has been developed. The method comprises the use of nonoxynol-10 in combination with ethylene glycol added to an emulsion comprising 100 parts by weight of an anionically stabilized, hydroxyl endblocked polydiorganosiloxane present as an emulsion of dispersed particles in water from 0.075 to, 0.75 part by weight of dialkyltindicarboxylate from 0.2 to 5, parts by weight of silane of the formula RSi(OR )3 and from, 50 to 200 parts by weight of inert non-siliceous filler.
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
- Granted January 26, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 26, 2010.
- 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.