Phenol ethers containing epoxide groups
CA 1287640 C · Owner: Roth, Martin · Inventors: Roth, Martin; Monnier, Charles E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Phenolethers Containing Epoxide Groups ABSTRACT, Novel epoxidised phenol ethers of formula I (I) , are described wherein R1 denotes C1-C20alkyl C5-C9cycloalkyl or, C7-C14aralkyl, R2 has one of the meanings of R1 or is in addition, hydrogen or a radical or formula II (II) , R3 denotes C1-C6alkyl or halogen R4 and R5 denotes hydrogen or, C1-C6alkyl R6 denotes hydrogen or methyl, m is 0, 1 or 2 and n is an integer from 0 to 30, with the proviso that at least two radicals, R2, must be epoxide groups of formula II. The compounds are especially suitable for encasing electronic components.
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 August 13, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 13, 2008.
- 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.