Joseph J. Zupancic - Bensenville IL Jean M. J. Frechet - Ithaca NY Andrew M. Zweig - Schaumburg IL Jeffery P. Conrad - Chicago IL
Assignee:
Allied-Signal Inc. - Morristown NJ
International Classification:
C08G 202 C08G 234 C08G 836 C08G 804
US Classification:
522166
Abstract:
Oligomeric condensation products of certain dialdehydes and phenols can be end-capped with a vinylbenzyl moiety and certain other moieties, especially alkyl groups, to afford thermosetting resins particularly valuable in making laminated circuit boards. Resins prepared by the reaction of 1 molar proportion of glyoxal with from 3 to 4 molar proportions of phenol and end-capped with from 50 to 85% vinylbenzyl groups with the remainder being alkyls of 1 through 11 carbon atoms are particularly useful.