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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9920163 B1

PDFFull Text
Date of Patent:
Mar. 20, 2018

Filed:

Apr. 15, 2013

Polyester polyol for use in polyurethane

Applicant:

Purac Biochem Bv, Gorinchem, NL;

Inventors:

Wilhelmus Jacobus Adrianus Honcoop, Bergambacht, NL;

Chris François Hubert Schaekens, Nijmegen, NL;

Jurgen Cornelis Henricus Maas, Tilburg, NL;

Mauraline Alison Maxine Gumbs, Dordrecht, NL;

Assignee:

PURAC BIOCHEM BV, Gorinchem, NL;

Attorney:

Oliff PLC

Primary Examiner:

Michael L Leonard

Int. Cl.
CPC ...
C08G 63/60 (2006.01); C08G 18/42 (2006.01); C08G 18/34 (2006.01); C08G 63/08 (2006.01); C08G 18/66 (2006.01); C08G 18/76 (2006.01); C08G 18/79 (2006.01); C09J 175/06 (2006.01); C08G 18/32 (2006.01); C08G 18/10 (2006.01);
U.S. Cl.
CPC ...
C08G 63/60 (2013.01); C08G 18/10 (2013.01); C08G 18/3206 (2013.01); C08G 18/348 (2013.01); C08G 18/4202 (2013.01); C08G 18/428 (2013.01); C08G 18/4266 (2013.01); C08G 18/4283 (2013.01); C08G 18/4286 (2013.01); C08G 18/4288 (2013.01); C08G 18/664 (2013.01); C08G 18/7671 (2013.01); C08G 18/797 (2013.01); C08G 63/08 (2013.01); C09J 175/06 (2013.01);
Abstract

The present invention relates to a polyester polyol, suitable for use in the manufacture of a polyurethane, suitable for use in the manufacture of a polyurethane, the polyester polyol having an ABA-structure, in which A represents a lactide-oligomer and in which B represents an initiator. The initiator includes a reaction product having long chain dicarboxylic acid components having 18 or more carbon atoms. The invention also relates to a method for the manufacture of the polyester polyol. The invention further pertains to polyurethanes including the before-mentioned polyester polyol as well as the use of these polyurethanes as an elastomer having a high toughness. The toughness is believed to originate from the combination of the hydrophobic character of the initiator and the hydrophilic character of the lactide parts in the polyol structure. The strength of the invented polylactide-polyurethane elastomers can be further improved by incorporating a carbodiimide in the elastomer material.

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Honcoop, Wilhelmus Jacobus Adrianus. (2018). Polyester polyol for use in polyurethane (U.S. Patent No. 9920163). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9920163

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