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. 04, 1999
Filed:
Mar. 25, 1997
Applicant:
Inventors:
Assignees:
Nippon Mining & Metals Co., Ltd., Tokyo, JP;
Toshiba Silicone Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
524588 ; 528 15 ; 528 10 ; 528 43 ; 524837 ;
Abstract
Compositions of a mold release agent for casting are disclosed which are excellent in heat resistance and releasing effect, and contain an organopolysiloxane expressed by the following general formula (1) ##STR1## wherein R represents methyl group or phenyl group, R.sup.1 represents an alkyl group, aralkyl group, or aryl group, R.sup.2 represents R or R.sup.1, x is an integer of from 0 to 1000, y is an integer of from 10 to 1000, and x+y is an integer of from 10 to 2000.