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:
Feb. 21, 1978
Filed:
Oct. 10, 1975
Vladimir Vasilievich Moiseev, Voronezh, SU;
Vladimir Vasilievich Kosovtsev, Voronezh, SU;
Galina Prokofievna Kolesnikova, Voronezh, SU;
Viktor Alexandrovich Zimnukhov, Voronezh, SU;
Lidia Alexeevna Miroshnikova, Voronezh, SU;
Esfir Abramovna Kimel, Moscow, SU;
Edit Konstantinovna Chefranova, Ljubertsy Moskovskoi oblasti, SU;
Valentina Ivanovna Guseva, Moscow, SU;
Ljudmila Vladimirovna Masagutova, Moscow, SU;
Other;
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.