Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1982-06-30
1983-11-22
Hoke, Veronica P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
2605005R, 260769, 260779R, 260780, 260799, 524 94, 524 95, 524 99, 524102, 524104, 524157, 524159, 524162, 524166, 544 4, 544 64, 544107, 546 2, 546 14, 546152, 546186, C08K 547, C08K 541
Patent
active
044170122
ABSTRACT:
Additives for rubber compositions, giving vulcanisates having improved retention of optimum physical properties, are compounds containing two or more groups of the formula --S--SO.sub.2 R linked by an organic bridging group, or polymers containing two or more groups of the formula --S--SO.sub.2 R attached to an organic polymer chain, where R represents (a) a radical OM where M is a monovalent metal, the equivalent of a multivalent metal, a monovalent ion derived by the addition of a proton to a nitrogenous base, or the equivalent of a multivalent ion derived by the addition of two or more protons to a nitrogenous base, or (b) an organic radical selected from aliphatic, cycloaliphatic, aromatic and heterocyclic radicals, and radicals which are combinations of any two or more such radicals.
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Weingarten, F. W., "Taurin-Homologue and Polymethylen-dithioschwefelsaure Salze", Arzneimittel Forschung, 1954, 4, 344-6.
Milligan and Swan, "Cyclic Trisulphides from Bunte Salts", J. Chem. Soc., 1965, 2901-4.
El Hewehi, Z. & Taeger, E., "Notiz uber Bunte-Salze", Journal fur Praktische Chemil, 4 Reihe, Band 7, 1958.
Hoke Veronica P.
Monsanto Europe S.A.
Seward Gordon B.
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