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:
Feb. 08, 1983
Filed:
Jan. 28, 1982
Applicant:
Inventors:
Rack H Chung, Clifton Park, NY (US);
William D Kray, Burnt Hills, NY (US);
Assignee:
General Electric Co., Waterford, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
20415913 ; 525100 ; 525403 ; 525477 ; 528 32 ; 528 34 ; 528 40 ; 528 43 ;
Abstract
Silane-functionalized ultraviolet screening agent precursors comprise compounds of the formula: ##STR1## wherein R is ##STR2## R.sup.1 is C.sub.1 -C.sub.6 alkyl, R.sup.2 is C.sub.1 -C.sub.6 alkyl or C.sub.2 -C.sub.6 alkanoyl, R.sup.3 is hydrogen or C.sub.1 -C.sub.6 alkoxyl, X is 0,1 or 2, y is 1,2, or 3 and x+y=3. Under ultraviolet radiation the compounds rearrange to the corresponding .alpha.-hydroxybenzophenones which protect substrates, especially transparent plastics, against degradation.