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:
Oct. 25, 1988
Filed:
Jan. 25, 1988
Applicant:
Inventors:
John T Lai, Broadview Heights, OH (US);
Pyong N Son, Akron, OH (US);
Assignee:
The B. F. Goodrich Company, Akron, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C08K / ;
U.S. Cl.
CPC ...
524100 ; 44 63 ; 252 / ; 544231 ; 544382 ; 544384 ; 544386 ; 544389 ; 544400 ; 544397 ; 544393 ;
Abstract
N-(substituted)-1-(piperazinealkyl)-.alpha.-(3,5-dialkyl-4-hydroxyphenyl)-. alpha.,.alpha.-disubstited acetamides, are novel compounds prepared by a novel modification of the ketoform process. The compounds are useful as stabilizers for organic materials subject to degradation in an environment in which the materials are exposed to heat, oxidation and light, particularly ultraviolet light. The compounds are especially useful in combination with known secondary stabilizers.