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.:
Date of Patent:
Dec. 16, 2014
Filed:
Jun. 28, 2013
Dow Global Technologies Llc, Midland, MI (US);
Giuseppe Lista, Modena, IT;
Dow Global Technologies LLC, Midland, MI (US);
Abstract
The present invention discloses low viscosity aromatic polyester polyols suitable for blending with other polyols or other materials mutually compatible with the polyester polyols to achieve polyurethane and polyisocyanurate products. In particular the present invention discloses polyester polyols comprising the reaction of: A) an aromatic component comprising at 80 mole percent or greater of terephthalic acid; B) polyethylene glycol having a molecular weight from 150 to 1000; and C) a glycol different from the glycol of B); wherein A, B, and C are present in the reaction on a percent weight bases of 20 to 60 weight percent A); 40 to 75 weight percent of B); and 0 to 40 weight percent of C).