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:
May. 14, 1985
Filed:
Jun. 03, 1981
Siegfried Wolff, Bornheim-Merten, DE;
Ewe-Hong Tan, Bruhl, DE;
Degussa Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
Mouldable and vulcanisable rubber mixtures are made containing a rubber (A) which still contains double bonds and which is cross-linkable by means of sulphur and a vulcanization accelerator or a mixture of rubber (A) with a different rubber (B), 0.2 to 10 parts of sulphur, 0.2 to 10 parts of a vulcanization accelerator and 1.0 to 10 parts of a bis-(alkoxysilylalkyl)polysulfide. There can also be present a silicate filler and/or a carbon black filler of rubber. The rubber mixtures have the silane, vulcanization accelerator and sulphur, calculated as S.sub.8 present in a molar ratio which causes the rubber mixture to have a reversion R=O (.+-.5%) resulting from the cross-linking isotherm at the vulcanization temperature where the reversion R is calculated according to Formula II ##EQU1## in which D.sub.max is the maximum vulcameter moment of rotation