The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 1983
Filed:
Apr. 27, 1981
Sheik A Zahir, Oberwil, CH;
Sameer H Eldin, Birsfelden, CH;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
Mono- and polyvalent phenolglycidyl ethers which contain in the molecule at least one 1-propenyl group in the ortho- or para-position with respect to the glycidyl ether group, or isomeric mixtures of mono- or polyvalent phenolglycidyl ethers which are propenyl-substituted in the ortho or para-position with respect to the glycidyl ether group and mono- or polyvalent phenolglycidyl ethers which are allyl-substituted in the ortho- or para-position with respect to the glycidyl ether group, the proportion of propenyl groups in the isomeric mixture having to be at least 5 equivalent-%, relative to the sum of the equivalents of propenyl and allyl groups, are obtained by a process wherein the propenyl-substituted phenols, or isomeric mixtures of propenyl- and allyl-substituted phenols, are glycidylated with an epihalohydrin. The novel compounds can be converted, both by use of curing agents for epoxide resins and by radical polymerization, into polymers having valuable mechanical properties.