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. 21, 1989
Filed:
Aug. 05, 1988
Hisayuki Nagaoka, Gunma, JP;
Michio Zenbayashi, Gunma, JP;
Toshiba Silicone Co., Ltd., Tokyo, JP;
Abstract
A siloxane-amide block copolymer having an alkenyl group or a photopolymerizable organic group at both terminals thereof which is represented by formula (I): ##STR1## wherein R.sup.1 represents a reaction residual group of an epoxy compound containing an alkenyl group or a photopolymerizable organic group and/or a substitution reaction product between said reaction residual group and an organosilyl group and the other symbols are as defined in the specification. The copolymer is produced by reacting a polycondensate of a diaminosiloxane and a dicarboxylic acid dihalide with a compound containing an alkenyl group or a photopolymerizable organic group at one terminal thereof and an epoxy group at the other terminal thereof. The siloxane-amide block copolymer exhibits excellent processability and reactive curability by application of heat, light or radiation.