Sterilisable polysiloxane-modified polyester coatings
CA 1068037 A · Owner: Bayer Aktiengesellschaft · Inventors: Raichle, Karl; Kuhn, Peter; Kuchenmeister, Rolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
It is known to prepare coatings which can be subjected to deformation processes such as deep drawing without delamination from the substrate. Unfortunately such coatings do delaminate upon being subjected to sterilization procedures The present invention seeks to overcome this drawback by providing a coating composition comprising: (A) 5 to 30 parts by weight of aminoplasts derived from benzoguanamine resins; and, (B) 95 to 70 parts by weight of the reaction product of (1) 99 to 89 parts by weight of a saturated polyester which consists of dicarboxylic acid residues wherein 85 to 50 mol % of the dicarboxylic acid residues are residues of aromatic dicarboxylic acids and 15 to 50 mol % 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
- Granted December 11, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 11, 1996.
- 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.