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:
Sep. 21, 2010
Filed:
Jan. 24, 2007
Parminder Agarwal, Evansville, IN (US);
Kristen Cohoon, Evansville, IN (US);
Sandeep Dhawan, Vienna, WV (US);
Robert Russell Gallucci, Mt. Vernon, IN (US);
Ganesh Kannan, Evansville, IN (US);
Kenneth Frederick Miller, Posey, IN (US);
Deepak Ramaraju, Kamataka, IN;
Gomatam Raghavan Ravi, Karnataka, IN;
Dhaval Shah, Evansville, IN (US);
Parminder Agarwal, Evansville, IN (US);
Kristen Cohoon, Evansville, IN (US);
Sandeep Dhawan, Vienna, WV (US);
Robert Russell Gallucci, Mt. Vernon, IN (US);
Ganesh Kannan, Evansville, IN (US);
Kenneth Frederick Miller, Posey, IN (US);
Deepak Ramaraju, Kamataka, IN;
Gomatam Raghavan Ravi, Karnataka, IN;
Dhaval Shah, Evansville, IN (US);
Abstract
The invention relates to a process for making modified polybutylene terephthalate random copolymers from a polyethylene terephthalate component. The invention relates to a three step process in which a diol component selected from the group consisting of ethylene glycol, propylene glycol, and combinations thereof reacts with a polyethylene terephthalate component under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; and where the first molten mixture is combined with 1,4-butanediol under conditions that create a second molten mixture that is subsequently placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. The invention also relates to compositions made from the process.