Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2007-10-09
2007-10-09
Sellers, Robert (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C525S187000, C525S449000
Reexamination Certificate
active
10484419
ABSTRACT:
The present invention provides thermoplastic hydroxy-functional polyesters. The polyesters have at least 10 sequential units, wherein the sequential units consist of units selected from units represented by the following formula (1) and units represented by the following formula (2); Wherein each of R1independently represents hydrogen or a substituted or unsubstituted homoalkyl or heteroalkyl group; each of R2independently represents hydrogen or a substituted or unsubstituted homoalkyl or heteroalkyl group; each of R3independently represents hydrogen or a substituted or unsubstituted homoalkyl or heteroalkyl group; Each of R4independently represents a substituted or unsubstituted homoalkyl or heteroalkyl group; and said moiety having no fewer than 1 unit represented by formula (1) and no fewer than 1 unit represented by formula (2). The present invention further provides processes for making hydroxyfunctional polyesters, such as polymerizing epoxidized fatty acids in the presence of an onium salt, and compositions and articles that include or are derived from the hydroxyfuntional polyesters
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Dettloff Marvin L.
Earls Jimmy D.
Lopez Leonardo C.
Lysenko Zenon
Rabon, Jr. James A.
Dow Global Technologies Inc.
Sellers Robert
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