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:
Nov. 24, 1992
Filed:
Sep. 12, 1991
Terumo Kabushiki Kaisha, Tokyo, JP;
Abstract
A polymerization initiator composition controlling polymerization at interface, comprising a (thio)barbituric acid compound represented by the general formula I: ##STR1## wherein R.sup.1 is an alkyl group of 1 to 3 carbon atoms, R.sup.2 and R.sup.3 are independently hydrogen atom or an alkyl group of 1 to 3 carbon atoms, and X is oxygen atom or sulfur atom, and (a) a metal halide represented by the general formula, MY.sub.n wherein M is Cu or Fe, Y is halogen atom, and n is an integer of 2 when M is Cu or an integer of 3 when M is Fe, or (b) a halogen ion-forming compound and M.sup.m -forming compound wherein M is Cu or Fe and m is 2+ when M is Cu or 3+ when M is Fe, and a curable composition comprising the (thio)barbituric acid and radically polymerizable monomer.