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:
Apr. 18, 2000
Filed:
May. 15, 1998
Applicant:
Inventors:
Albertus O Dozeman, Born, NL;
Pieter Gijsman, Sittard, NL;
Herman A Schepers, Stein, NL;
Wilhelmus A Debets, Sittard, NL;
Assignee:
DSM N.V., Heerlen, NL;
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
528485 ; 528488 ; 528492 ; 524433 ; 524437 ; 525197 ; 525232 ;
Abstract
The invention relates to a process for the preparation of a thermoplastic elastomer comprising preparing a blend of a rubber and a thermoplastic resin, in which the rubber is at least partially vulcanized by using a phenolic curative. The invention is that, to overcome problems with surface quality, an effective amount of a Lewis base is added after the desired degree of vulcanization of the rubber is obtained. The invention also relates to a process for the preparation of an UV-stable thermoplastic elastomer.