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. 02, 2014
Filed:
Feb. 28, 2011
Wendy Lin, Niskayuna, NY (US);
Rainer Koeniger, Neufahrn, DE;
Rachel Marie Suffield, Simpsonville, SC (US);
Mohamad Sultan, Simpsonville, SC (US);
Jason Testa, Simpsonville, SC (US);
Wendy Lin, Niskayuna, NY (US);
Rainer Koeniger, Neufahrn, DE;
Rachel Marie Suffield, Simpsonville, SC (US);
Mohamad Sultan, Simpsonville, SC (US);
Jason Testa, Simpsonville, SC (US);
General Electric Company, Schenectady, NY (US);
Abstract
Embodiments of the present application generally provide for wind turbine blade spar caps comprising composite materials prepared using a low viscosity resin system and a high density fabric and methods for their manufacture. In particular embodiment, the low viscosity resin system has a viscosity in the range of about 1 to about 100 centipoises at a temperature in the range of about 0° C. to about 125° C. during the preparation of the composite material. By using low viscosity resin systems, composite materials have been prepared having a fiber volume fraction of greater than about 65% and a composite modulus of greater than 48000 MPa.