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. 07, 1989
Filed:
Mar. 03, 1988
Masachika Yoshino, Annaka, JP;
Nobuyuki Hasebe, Rancho Palos Verdes, CA (US);
Hironao Fujiki, Takasaki, JP;
Hiroshi Inomata, Takasaki, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
A room temperature-curable organopolysiloxane composition is proposed which is useful as a material for imprinting or blocking of forms of, for example, medical and dental prostheses without the problem of curing retardation or incomplete curing. The composition comprises a vinyl-containing organopolysiloxane, organohydrogenpolysiloxane, platinum catalyst, inorganic filler, liquid paraffin or petrolatum and antioxidant. The antioxidant serves to protect the liquid paraffin or petrolatum from oxidation to produce oxidized compounds which may deactivate the platinum catalyst to cause curing retardation or incomplete curing.