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. 29, 2016
Filed:
Jan. 26, 2015
Frank J. Feher, Copley, OH (US);
Gregory M. Whited, Belmont, CA (US);
Gopal K. Chotani, Cupertino, CA (US);
Fernando Valle, Burlingame, CA (US);
Carol Fioresi, Redwood City, CA (US);
Karl J. Sanford, Cupertino, CA (US);
Joseph Mcauliffe, Sunnyvale, CA (US);
Marguerite Cervin, Redwood City, CA (US);
Aaron S. Puhala, Kent, OH (US);
Andrei Miasnikov, Mountain View, CA (US);
Ilana S. Aldor, Palo Alto, CA (US);
Frank J. Feher, Copley, OH (US);
Gregory M. Whited, Belmont, CA (US);
Gopal K. Chotani, Cupertino, CA (US);
Fernando Valle, Burlingame, CA (US);
Carol Fioresi, Redwood City, CA (US);
Karl J. Sanford, Cupertino, CA (US);
Joseph McAuliffe, Sunnyvale, CA (US);
Marguerite Cervin, Redwood City, CA (US);
Aaron S. Puhala, Kent, OH (US);
Andrei Miasnikov, Mountain View, CA (US);
Ilana S. Aldor, Palo Alto, CA (US);
The Goodyear Tire & Rubber Company, Akron, OH (US);
Danisco US, Inc., Palo Alto, CA (US);
Abstract
It has been found that certain cells in culture can convert more than about 0.002 percent of the carbon available in the cell culture medium into isoprene. These cells have a heterologous nucleic acid that (i) encodes an isoprene synthase polypeptide and (ii) is operably linked to a promoter. The isoprene produced in such a cultured medium can then be recovered and polymerized into synthetic rubbers and other useful polymeric materials. The synthetic isoprene containing polymers of this invention offer the benefit of being verifiable as to being derived from non-petrochemical based resources. They can also be analytically distinguished from rubbers that come from natural sources. The present invention more specifically discloses a polyisoprene polymer which is comprised of repeat units that are derived from isoprene monomer, wherein the polyisoprene polymer has δC value of greater than −22%.