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:
Apr. 12, 1988
Filed:
Oct. 08, 1986
Applicant:
Inventors:
Man Vo Dinh, Serquigny, FR;
Jean-Paul Merval, Brionne, FR;
Assignee:
Atochem, , FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ; C08G / ;
U.S. Cl.
CPC ...
252 / ; 252 546 ; 528 73 ;
Abstract
The process for the manufacture of infusible and insoluble polyamide-imide powders of spheroidal form comprising first reacting at least one lactam in solution with a polyamide generator in the presence of an anionic polymerization catalyst and then adding to the polymerization reaction a polyisocyanate in an amount sufficient to first activate said polymerization and then to react with the polyamide chains being formed and to bridge the same; the resultant product; and lubricants comprising a lubricating fluid and the resultant product.