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:
Dec. 17, 1996
Filed:
Jan. 11, 1991
Applicant:
Inventors:
Leslie A Cohen, Langhorne, PA (US);
Darnell DeGraff, Bensalem, PA (US);
Harry C Fromuth, Trevose, PA (US);
Theodore D Goldman, Washington Crossing, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524102 ; 524 91 ; 524120 ; 428447 ;
Abstract
Polymers of (N-lower alkyl)dimethylglutarimide or (N-hydrogen)dimethylglutarimide are resistant to surface crazing, molecular weight degradation and yellowing on exposure to ultraviolet light, by inclusion of a hindered amine stabilizer.