Polyesters based upon the reaction of dimer acid, dimer...

Details Polyesters based upon the reaction of dimer acid, dimer... Polyesters based upon the reaction of dimer acid, dimer...

2007-08-21

2007-08-21

Richter, Johann (Department: 1621)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

Reexamination Certificate

active

11073109

ABSTRACT:
The present invention is related to a series of polyesters based upon the reaction of dimer acid, dimer alcohol and Guerbet alcohol. The resulting polyester is a high molecular weight product that is well tolerated by the skin and has outstanding emolliency. The Guerbet alcohol, being mono hydroxyl is a capper portion of the polymer, the dimer alcohol is a chain extender having two hydroxyl groups and the dimer acid is a diacid that reacts with the hydroxyl groups on the Guerbet and dimer alcohol to make the polyester.

REFERENCES:
patent: 6537531 (2003-03-01), Gardner
patent: 7038005 (2006-05-01), O'Lenick, Jr.

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