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. 11, 1994
Filed:
Mar. 11, 1992
Applicant:
Inventors:
Takeshi Endo, Kanagawa, JP;
Toshikazu Takata, Kanagawa, JP;
Shinichi Ohno, Kanagawa, JP;
Fujio Takahashi, Hyogo, JP;
Assignee:
Nippon Oil & Fats Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
554150 ; 554151 ; 554154 ; 562856 ; 562857 ; 562847 ; 521 32 ;
Abstract
Disclosed is a process for producing a carboxylic acid chloride by reacting phosgene with a carboxylic acid or an anhydride thereof, which comprises effecting the reaction in the presence of a homopolymer or copolymer of a monomer represented by formula (I) or (II) below, a copolymer of the monomers represented by formulae (I) and (II) below, or a copolymer of at least one monomer selected from the group sensisting of the monomers represented by formulae (I) and (II) below with another monomer copolymerizable therewith: