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:
Sep. 21, 1982
Filed:
Aug. 27, 1981
Applicant:
Inventor:
David A Berry, Columbus, OH (US);
Assignee:
RCA Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; C07F / ;
U.S. Cl.
CPC ...
369288 ; 556425 ; 369286 ; 252 34 ; 252 496 ; 3581285 ; 346137 ; 3461351 ; 428 64 ; 428 65 ; 428447 ; 428451 ; 428408 ; 428161 ;
Abstract
High density information discs are lubricated with a silyl quaternary ammonium salt of the formula ##STR1## wherein R is a lower alkyl group of 1-5 carbon atoms; R.sub.3 is methyl or ethyl; R.sub.4 is an alkyl group of 1-12 carbon atoms and X is --OSO.sub.2 --(CH.sub.2).sub.n CH.sub.3 wherein n is an integer of 5-12. Discs lubricated with this lubricant exhibit improved stability to high temperature, high relative humidity environments.