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:
Jul. 20, 1999
Filed:
Feb. 13, 1998
Applicant:
Inventor:
Thomas F Steckel, Chagrin Falls, OH (US);
Assignee:
The Lubrizol Corporation, Wickliffe, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08L / ;
U.S. Cl.
CPC ...
524322 ; 524377 ; 524386 ; 524387 ; 524394 ; 524559 ; 524904 ; 523403 ; 523414 ; 523427 ; 525934 ;
Abstract
The present invention is directed to a powder coating composition containing at least one film forming resin and a non-flatting and slip-enhancing amount of at least one additive. The additive is a non-crosslinked reaction product of a hydroxy compound and a carboxylic acid where the reaction product contains at least one ester functionality and at least one straight chain hydrocarbyl group of about 10 to about 100 carbon atoms. The most preferred additive is sorbitan tristearate. The cured powder coatings exhibit lower coefficient of friction and substantial gloss retention.