Molding process using curable silicone release compositions
CA 1134585 A · Owner: Dow Corning Corporation · Inventors: Battice, David R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved molding process is provided which comprises treating a mold surface with certain curable silicone compositions to improve the release of a molded article from the mold. The curable silicone release composition is obtained by mixing a vinyl-endblocked polydiorganosiloxane, a xyl?ne--soluble vinyl-containing resinous polysiloxane, a methylhydrogenpolysiloxane crosslinking agent and a hydrosilylation catalyst. The curable silicone release composition is easily applied to and rapidly cured onto the ?old surface and when cured, provides, many easy releases of molded articles such as high resiliency polyurehtane foam cushions, polyurethane elastomeric shoe soles and polyester boat …
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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
- Granted November 2, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 2, 1999.
- 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.