Polyester polyol

Details Polyester polyol Polyester polyol

2007-03-08

2011-11-15

Gonzalez, Porfirio Nazario (Department: 1622)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C528S067000, C528S271000, C528S361000, C525S411000, C525S412000, C525S413000, C521S142000, C521S172000

Reexamination Certificate

active

08058470

ABSTRACT:
A star-branched polyester polyol is obtained by polymerizing lactide or lactic acid, using, as an initiator, a fat and oil composed mainly of a triacylglycerol that has at least three hydroxyl groups or epoxy groups in its molecule. This polyester polyol has low crystallinity and a low melting point, and thus shows good working properties when used in various applications. Furthermore, this polyester polyol is derived from renewable resources, and, thus, it is highly desirable in view of its effectiveness in protecting the global environment and preventing fossil resources from being depleted.

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JP 2003238931, Fukunaga, Shinichi, English abstract, 2 pages.
JP 2003-23891, Fukunaga, S, Biodegradable Adhesive, English Translation, (6 pages).
Database WPI Week XP-002607886 re JP2003-253107.

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