公开(公告)号：US08088834B2

公开(公告)日：2012-01-03

申请号：US12874786

申请日：2010-09-02

申请人： Parminder Agarwal ,  Kristen Cohoon ,  Sandeep Kumar Dhawan ,  Robert Russell Galucci ,  Ganesh Kannan, Sr. ,  Kenneth Frederick Miller ,  Deepak Ramaraju ,  Gomatam Raghavan Ravi ,  Dhaval Shah

发明人： Parminder Agarwal ,  Kristen Cohoon ,  Sandeep Kumar Dhawan ,  Robert Russell Galucci ,  Ganesh Kannan, Sr. ,  Kenneth Frederick Miller ,  Deepak Ramaraju ,  Gomatam Raghavan Ravi ,  Dhaval Shah

IPC分类号： C08J11/04

CPC分类号： C08J11/24 ,  C08G63/181 ,  C08G63/78 ,  C08J2367/02 ,  Y02W30/706

摘要： The invention relates to a process for making modified polybutylene terephththalate 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.

摘要翻译： 本发明涉及一种由聚对苯二甲酸乙二醇酯组分制备改性聚对苯二甲酸丁二酯无规共聚物的方法。 本发明涉及一种三步法，其中选自乙二醇，丙二醇及其组合的二醇组分在足以将聚对苯二甲酸乙二醇酯组分解聚为第一熔融混合物的条件下与聚对苯二甲酸乙二醇酯组分反应; 并且其中在产生第二熔融混合物的条件下将第一熔融混合物与1,4-丁二醇组合，随后将其置于产生改性聚对苯二甲酸丁二醇酯无规共聚物的低于大气压条件下。 本发明还涉及由该方法制备的组合物。