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. 28, 1982
Filed:
Dec. 09, 1980
Applicant:
Inventors:
Silvio L Giolito, Whitestone, NY (US);
Stanley B Mirviss, Stamford, CT (US);
Assignee:
Stauffer Chemical Company, Westport, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
260974 ; 260976 ; 260978 ; 260980 ;
Abstract
Monoisopropylphenyl/phenyl phosphate containing mixtures are prepared by, (1) alkylating phenol with propylene to C.sub.3 /.phi. ratio of less than 0.30 with a p-toluene sulfonic acid catalyst, (2) removing unreacted phenol as distillate to yield a distilland having a C.sub.3 /.phi. ratio above 0.3 and thereafter, (3) phosphorylating the distilland to yield a triaryl phosphate mixture having a reduced 2,6-diisopropylphenyl phosphate content.