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:
Apr. 14, 1987
Filed:
Sep. 24, 1982
Applicant:
Inventor:
James M Renga, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07C / ;
U.S. Cl.
CPC ...
549229 ; 549230 ; 558260 ;
Abstract
Carbonate compounds are prepared by equilibrium interchange of carbonate functionality between lower alkyl carbonates especially dimethyl carbonate and alkyl halides such as allyl chloride at about 50.degree. C. to about 250.degree. C. in the presence of an initiator such as homogeneous or heterogeneous amines, phosphines, and ammonium or phosphonium quaternary salts.