发明名称 |
Synthesis of abietic acid-based macromer for polyester resin process |
摘要 |
An improved polycondensation method for bio-based polyesters synthesized from pre-formed macromers and the corresponding compositions, which are useful for producing binder polymers for imaging applications such as emulsion-aggregation (EA) toner. |
申请公布号 |
US8835589(B2) |
申请公布日期 |
2014.09.16 |
申请号 |
US201213359034 |
申请日期 |
2012.01.26 |
申请人 |
Xerox Corporation |
发明人 |
Farrugia Valerie M.;Sacripante Guerino G.;Zhou Ke |
分类号 |
C09F1/04;G03G9/087 |
主分类号 |
C09F1/04 |
代理机构 |
Pillsbury Winthrop Shaw Pittman LLP |
代理人 |
Pillsbury Winthrop Shaw Pittman LLP |
主权项 |
1. A method of making a bio-based polyester resin, the method comprising:
a) obtaining a bio-based glycerol that is a transesterification product of crude vegetable oil; b) obtaining a bio-based abietic acid; c) performing an esterification reaction between the bio-based glycerol and the bio-based abietic acid to form a 100% bio-based abietic acid-glycerol macromere, wherein the esterification comprises heating for at least 4 hours; and d) polycondensing the macromer with at least two diacids in the presence of a catalyst to obtain the bio-based polyester resin; wherein the bio-based polyester resin is at least 80 mol % bio-based and comprises, i) a softening point of about 90° C. to about 150° C., and ii) an acid value of about 8 to about 16 mgKOH/g. |
地址 |
Norwalk CT US |