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. 23, 2013
Filed:
May. 10, 2007
Lisa Saunders Baugh, Ringoes, NJ (US);
Abhimanyu Onkar Patil, Westfield, NJ (US);
Christian Peter Mehnert, Houston, TX (US);
Kevin R. Squire, Kingwood, TX (US);
Kenneth A. Cook, La Marque, TX (US);
Caiguo Gong, Pearland, TX (US);
Enock Berluche, Phillipsburg, NJ (US);
Karla Schall Colle, Houston, TX (US);
Alan J. Oshinski, Friendswood, TX (US);
Stephen Zushma, Clinton, NJ (US);
Beverly J. Poole, Houston, TX (US);
Lisa Saunders Baugh, Ringoes, NJ (US);
Abhimanyu Onkar Patil, Westfield, NJ (US);
Christian Peter Mehnert, Houston, TX (US);
Kevin R. Squire, Kingwood, TX (US);
Kenneth A. Cook, La Marque, TX (US);
Caiguo Gong, Pearland, TX (US);
Enock Berluche, Phillipsburg, NJ (US);
Karla Schall Colle, Houston, TX (US);
Alan J. Oshinski, Friendswood, TX (US);
Stephen Zushma, Clinton, NJ (US);
Beverly J. Poole, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
Disclosed is a selected type of copolymer composition comprising copolymers having units derived from ethylene and dicyclopentadiene (DCPD) co-monomers. Such copolymer compositions: a) have a DCPD-derived comonomer unit content of from about 25 mole % to about 45 mole %; b) have a Weight Average Molecular Weight, M, of greater than about 170,000; c) comprise amorphous material and have glass transition temperatures, T, of from about 8° C. to about 129° C., which also fit the equation T(in ° C.)≧[(mole % DCPD×3.142)−4.67]; and d) comprise no significant amount of crystalline polyethylene homopolymer or crystallizable polyethylene segments within the ethylene-dicyclopentadiene copolymers. Such copolymers can be readily derivatized by hydrogenation and/or epoxidation to provide polymeric materials suitable for use as engineering thermoplastics. Also disclosed are processes for preparing and optionally further derivatizing ethylene/dicyclopentadiene copolymers having the characteristics hereinbefore described.