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:
Dec. 20, 1977
Filed:
Feb. 25, 1976
Vasily Vladimirovich Korshak, Moscow, SU;
Irina Alexandrovna Gribova, Moscow, SU;
Alexandr Petrovich Krasnov, Moscow, SU;
Mikhail Mikhailovich Teplyakov, Moscow, SU;
Georgy Vasilievich Elerdashvili, Tbilisi, SU;
Galina Ilinichna Gureeva, Moscow, SU;
Valery Panteleimonovich Chebotarev, Moskovskaya oblast, SU;
Raisa Alexeevna Dvorikova, Moscow, SU;
Vladimir Alexandrovich Sergeev, Moscow, SU;
Dali Mitrofanovna Kakauridze, Moscow, SU;
Other;
Abstract
An antifriction polymer material which is a product of hardening of a composition consisting of a filler in amounts of 10-95 wt.% and a binder in amounts of 5-90 wt.%, a mixture of polyphenylenes being used as a binder containing ketal and/or acetyl groups of the general formula ##STR1## R.sub.3 and R.sub.4 being identical or different, the fraction with n =2-15 amounting to 4-20% of the binder weight. The proposed antifriction polymer material possesses high heat and thermal resistance of about 350.degree.C and 450.degree.C, respectively, which ensures a stable friction coefficient and a high wear resistance of the material at temperatures of up to 320.degree. C.