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:
Sep. 03, 1985
Filed:
Oct. 12, 1983
Applicant:
Inventor:
David L Dunkelberger, Newtown, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
525260 ; 525222 ; 525232 ; 525240 ; 525241 ; 525302 ; 525313 ; 525314 ; 525315 ; 525316 ; 525319 ; 525322 ; 525323 ; 525426 ;
Abstract
Improved impact modifier composition comprising elastomeric impact modifier polymer and dunkelsperser in a weight ratio of about 99.5/0.5 to 96/4 which is subject to substantially reduced gel formation in rigid thermoplastic matrix polymer formulations. Also disclosed are such formulations, as well as processes for preparing the improved impact modifier compositions.