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:
Oct. 18, 2005
Filed:
Mar. 27, 2002
Applicants:
Martin Van Duin, Sittard, NL;
Jacobus W. M. Noordermeer, Susteren, NL;
Miriam A. L. Verbruggen, Zwolle, NL;
Leen Van Der Does, Enschede, NL;
Inventors:
Martin Van Duin, Sittard, NL;
Jacobus W. M. Noordermeer, Susteren, NL;
Miriam A. L. Verbruggen, Zwolle, NL;
Leen Van Der Does, Enschede, NL;
Assignee:
DSM IP Assets B.V., Heerlen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J011/04 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for devulcanizing a sulphur-cured rubber, which rubber contains a network of a polymer, which polymer has a main chain of carbon atoms, in which for the vulcanization per 40 carbon-carbon bonds in the main chain a maximum of 1 unsaturated carbon-carbon bond occurs, by heating the rubber in the presence of a devulcanizing agent. The devulcanizing agent is an amine compound.