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. 19, 1993
Filed:
Sep. 02, 1992
Applicant:
Inventors:
Russell K King, Midland, MI (US);
Chi-long Lee, Midland, MI (US);
Assignee:
Dow Corning Corporation, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
525479 ; 528 15 ; 528 31 ; 528 32 ; 528 37 ; 528 38 ;
Abstract
Cluster azasilacycloalkyl functional polysiloxanes are prepared by combining vinyl-containing polysiloxane, polyfunctional hydrogen polysiloxane, and a platinum catalyst; reacting the combination to produce .tbd.Si--CH.sub.2 CH.sub.2 --Si.tbd. linkages and substantial amounts of unreacted Si--H groups remain in the reaction product. The Si--H groups in the reaction product are reacted with aliphatically unsaturated azasilacycloalkane forming the cluster compound. These cluster azasilacycloalkyl functional polysiloxanes cure when exposed to moisture to elastomers, sealants, encapsulants, and resins products.