Dow Global Technolgoies LLC

Zyvex Performance Materials, LLC

Weijun Wang

David H Bank

Jun Jason Cai

Kevin J Bouck

Abhijit A Namjoshi

Marsha L Langhorst

Richard Baumer

Calvin Lee Pavlicek

Mark A Spalding

Srinivas Gadthula

Srinagesh Kumar Potluri

Bao Ngoc Le

Jun Cai

The present invention provides thermosetting resin pre-impregnated or infused fiber materials or prepregs comprising a thermosetting resin mixture and a fiber material component of a heat resistant fiber, such as carbon fiber, having an areal weight of from 500 to 3,000 g/m2 having a coating of from 0.5 to 4 phr of a latent, particulate curative or solid curative, preferably, dicyandiamide, wherein the prepregs are infused with a thermosetting resin mixture comprising (a) at least one liquid epoxy resin, and (b) a hardener and/or a catalyst, as well as methods of making the same. The prepregs of present invention enables the simple provision of lightweight composites having consistent resin cure throughout.

Catalyst-doped sizing agent for preparation of high areal weight fiber shelf-stable prepreg or molding compound intermediates

Methods and compositions are provided for the efficient and beneficial use of nanoparticulates, such as carbon nanotubes. In various embodiments, a nanoparticulate entrapped in a linear polymer, where the linear polymer is formed in the presence of the nanoparticulate, is provided. The entrapped nanoparticulate provides an efficient means to introduce nanoparticulates into compositions, such as resins and fiber-reinforced resins, allowing for increased dispersion and beneficial properties.

Nanoparticulates and a linear polymer delivery system

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Midland, MI, United States of America

Weijun Wang