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:
Jan. 31, 1989
Filed:
Nov. 27, 1987
Applicant:
Inventors:
Jerry H Smith, West Chester, PA (US);
John F Stephen, West Chester, PA (US);
Assignee:
ICI Americas Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568720 ; 568724 ;
Abstract
A noncrystalline 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane having an amorphous X-ray defraction pattern and a melt transition temperature of 113.degree.-119.degree. C. is made by an improved process and offers improvements over crystalline materials as a stabilizer of resins made from at least one ethylenically unsaturated monomer such as polypropylene.