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:
Sep. 09, 2014
Filed:
May. 04, 2009
George Jacob, Lake Jackson, TX (US);
Ha Q. Pham, Lake Jackson, TX (US);
Marvin L. Dettloff, Lake Jackson, TX (US);
Gary A. Hunter, Lake Jackson, TX (US);
Rajesh Turakhia, Lake Jackson, TX (US);
George Jacob, Lake Jackson, TX (US);
Ha Q. Pham, Lake Jackson, TX (US);
Marvin L. Dettloff, Lake Jackson, TX (US);
Gary A. Hunter, Lake Jackson, TX (US);
Rajesh Turakhia, Lake Jackson, TX (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
A windmill blade which comprises reinforcing fibers in a toughened resin matrix. The resin matrix is made from a composition which comprises (a) one or more epoxy resins and/or one or more epoxy vinyl ester resins, (b) one or more reactive diluents, and (c) at least one amphiphilic block copolymer. The amphiphilic block copolymer comprises at least two different polyether blocks and is present in the composition in an amount of from about 0.5% to about 10% by volume, based on the total volume of the matrix composition.