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. 15, 1985
Filed:
Apr. 23, 1982
Applicant:
Inventor:
Sundar J Rajan, Ferndale, MI (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585375 ; 585317 ; 585376 ;
Abstract
Synthesis of methylcyclopentadiene with limited amounts of dimethylcyclopentadiene by-product. Cyclopentadiene monomer is complexed with metallic sodium in diglyme (diethylene glycol dimethylether) and reacted with an alkylating agent such as methyl chloride in the presence of a large stoichiometric excess of cyclopentadiene monomer. A high yield of methylcyclopentadiene is obtained with only a small production of undesirable methylcyclopentadiene. The excess cyclopentadiene is easily recycled in a continuous process.
Rajan, Sundar. (1985). Methylcyclopentadiene synthesis (U.S. Patent No. 4547603). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4547603
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile