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:
Oct. 31, 1989
Filed:
Aug. 05, 1988
Applicant:
Inventors:
Assignee:
Toshiba Silicone Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 26 ; 528 28 ; 528 18 ; 525431 ; 556419 ;
Abstract
A siloxane-amide block copolymer represented by formula (I): ##STR1## wherein the symbols are as defined in the specification, is disclosed. The polymer of formula (I) is produced by reacting a polycondensate of a diaminosiloxane and a dicarboxylic acid dihalide with an epoxysilane to induce ring-opening addition reaction between the terminal amino groups of the polymer and the epoxy group of the epoxysilane. The siloxane-amide block copolymer exhibits excellent processability and reactive curability due to the hydrolyzable silyl groups at the both terminals.