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:
Jul. 09, 1991
Filed:
Jun. 06, 1989
Takahiko Motoyama, Tokyo, JP;
Yoshio Miyata, Chigasaki, JP;
Fumio Matsui, Yokohama, JP;
Yoichi Namba, Yokohama, JP;
Noritoshi Kamoi, Matsudo, JP;
Yukari Ohwaki, Kawasaki, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
Disclosed is a ladder silicone oligomer composition which comprises [A] 100 weight parts of a ladder silicone oligomer containing 1 to 10 weight % of hydroxyl groups and 1 to 10 weight % of ethoxy groups, [B] 1 to 200 weight parts of at least one silicon-containing compound selected from (a) silicone oligomers and polymers having a number average molecular weight of 500 to 100,000, which are obtained by reacting a compound of the following formula (I): ##STR1## wherein R.sub.1 is lower alkyl or phenyl, and R.sub.2 is lower alkyl, with a compound of the following formula (II): ##STR2## wherein R.sub.3 is lower alkyl, or phenyl, and R.sub.4 is lower alkyl, the molar ratio of the compound (I) to the compound (II) being from 1/0.3 to 1/9, and (b) ethyl silicates having a silica content of 28.8 to 45 weight % and hydrolysis products thereof, and [C] an organic solvent. The ladder silicone oligomer composition is useful as a coating material and an adhesive.