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:
Mar. 14, 1995
Filed:
Jul. 27, 1994
Applicant:
Inventor:
Robert A Smith, Clifton Park, NY (US);
Assignee:
General Electric Company, Waterford, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08L / ;
U.S. Cl.
CPC ...
523213 ; 524731 ; 524783 ; 524789 ; 524791 ; 524786 ; 524860 ; 524863 ;
Abstract
Silicone mold compositions are provided which exhibit low durometer and high tear strength properties and comprise a main filler of precipitated silica and a reinforcing co-filler selected from acicular CaSiO.sub.3 fillers, fumed aluminum oxide fillers, and spherical ceramic fillers. The co-fillers have large surface areas and small particle sizes. The co-fillers are used with alkoxy silane cross-linking agents of the formula (RO).sub.4 Si, particularly n-propylsilicate. Two-part silicone cure systems are provided which enable the rapid achievement of full die B tear strengths without the need for prolonged aging of these materials.