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. 20, 2012
Filed:
Feb. 04, 2011
Parminder Agarwal, Evansville, IN (US);
Kristen Cohoon-brister, Charlotte, NC (US);
Sandeep Dhawan, Newburgh, IN (US);
Robert Russell Gallucci, Mt. Vernon, IN (US);
Ganesh Kannan, Evansville, IN (US);
Kenneth Frederick Miller, Posey, IN (US);
Dhaval Shah, Evansville, IN (US);
Parminder Agarwal, Evansville, IN (US);
Kristen Cohoon-Brister, Charlotte, NC (US);
Sandeep Dhawan, Newburgh, IN (US);
Robert Russell Gallucci, Mt. Vernon, IN (US);
Ganesh Kannan, Evansville, IN (US);
Kenneth Frederick Miller, Posey, IN (US);
Dhaval Shah, Evansville, IN (US);
Abstract
In one embodiment, the invention relates to a two step process in which a 1,4-butane diol component reacts with a polyethylene terephthalate component under conditions that depolymerize the polyethylene terephthalate component into a molten mixture and the molten mixture is placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. In another embodiment, 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-butane diol 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 processes of the invention.