Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1981-06-03
1985-05-14
Ziegler, Jacob
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
152330R, 152374, 1561101, 524262, 524575, 525102, 525191, C08L 900, C08L 8308
Patent
active
045173362
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
REFERENCES:
patent: 3842111 (1974-10-01), Simon
patent: 3873489 (1975-03-01), Thurn et al.
patent: 4229333 (1980-10-01), Wolff et al.
Tan Ewe-Hong
Wolff Siegfried
Degussa - Aktiengesellschaft
Ziegler Jacob
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