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:
May. 08, 1990
Filed:
Nov. 10, 1988
Applicant:
Inventors:
Tadashi Okawa, Ichihara, JP;
Toshio Suzuki, Kimitsu, JP;
Assignee:
Toray Silicon Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556441 ;
Abstract
There is disclosed a novel phthalic acid ester-modified organopolysiloxane having the general formula ##STR1## where in R.sup.1 is a monovalent hydrocarbon group, R.sup.2 is a group R.sup.1 or a group with the formula ##STR2## with the proviso that at least one of the groups R.sup.2 in each molecule is the group with the formula ##STR3## in which R.sup.3 is an alkyl group, R.sup.4 is an alkylene group, and m is a positive integer. The organosiloxane is useful as a co-reactant in the preparation of organic resins such as polyesters, polyamides and polyimides.