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. 01, 1994
Filed:
Jul. 23, 1991
Sergio Custro, Ravenna, IT;
Gian T Viola, Ravenna, IT;
Enichem Elastomeri s.r.l., Milan, IT;
Abstract
A branched and hydrogenated block copolymer can be defined by the formula [(EB).sub.1 --HT--A--(EB).sub.2 ].sub.n X, where (EB).sub.1 and (EB).sub.2 are hydrogenated polydiene blocks, A is a polyvinylaromatic block, HT is a random copolymer segment made up of hydrogenated dienic monomeric and vinylaromatic units, X is a coupling radical having a valence equal to n, and n is a whole number ranging from 3 to 20. This kind of block copolymer shows excellent mechanical characteristics and resistance to atmospheric agents, even when used in combination with other resins.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile