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:
May. 03, 1977
Filed:
Dec. 30, 1974
Applicant:
Inventors:
Arthur L Austin, Southgate, MI (US);
William W Levis, Jr, Wyandotte, MI (US);
John T Patton, Jr, Wyandotte, MI (US);
Assignee:
BASF Wyandotte Corporation, Wyandotte, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08K / ; C08G / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 2606115 ;
Abstract
Polyether polyols may be synergistically stabilized against oxidation by incorporating therewith 4,4'-bis(alphadimethylbenzyl) diphenyl amine and a 2,6-di-t-butyl-4-(lower alkyl) phenol such as 2,6-di-t-butyl-4-methyl phenol or 2,6-di-t-butyl-4-butyl phenol. The stabilized polyols inhibit color formation when employed in the preparation of polyurethane foams.