Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1975-10-10
1978-02-21
Hoke, V.P.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 459AD, 260 459QA, 260784, 260798, 260803, 260808, C08K 518
Patent
active
040751660
ABSTRACT:
A method of stabilization of rubbers and vulcanizates thereof which involves incorporation, into a rubber, its solution or latex, of antioxidants, viz. phenolamine resins prepared by condensation of hexamethylene tetramine with alkyl-, alkenynyl-, dialkyl-, arylalkyl-, halo-substituted phenol, dihydroxydiphenylalkanes, hydroxybenzoic acids. Said resins may be used in a combination with conventional antioxidants such as secondary amines, diamines, 2,6-dialkylderivatives of phenol, phosphorus- and sulphur-containing compounds.
Said phenolamine resins are considerably superior over conventional antioxidants in their efficiency against thermal ageing during thermomechanical processing.
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patent: 1968914 (1934-08-01), Semon
patent: 2618665 (1952-11-01), Hess et al.
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patent: 3208859 (1965-09-01), Coffield
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patent: 3638703 (1972-02-01), Endter et al.
Auxiliary Substances for Polymeric Materials, by Piotrovskii et al., Rubber and Plastics Research Association of Great Britain, June 1967; pp. 131 and 132.
Chefranova Edit Konstantinovna
Guseva Valentina Ivanovna
Kimel Esfir Abramovna
Kolesnikova Galina Prokofievna
Kosovtsev Vladimir Vasilievich
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