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:
Mar. 21, 1978
Filed:
Apr. 19, 1976
Robert William Schluenz, Panama City, FL (US);
Curry Beach Davis, Panama City, FL (US);
Arizona Chemical Company, Wayne, NJ (US);
Abstract
There are provided resinous terepene maleimides useful as tackifiers for elastomers and prepared by reacting at tempertures between 140.degree. C. and 200.degree. C. substantially equimolar amounts of (a) non-conjugated monocyclic terpenes or mixtures thereof and (b) maleic acid anhydride in the presence of from 0.05% to 0.15% iodine, based on the weight of the terpene, recovering a mixture of not less than 95% mono-adduct and not more than 15% di-adduct of terpene maleic adduct, further reacting said adduct mixture with stoichiometric amounts of an aliphatic polyamine, and recovering terpene maleimide having a number average molecular weight between about 500 and about 600.