Composition of liquid, solid and semisolid epoxy resins

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

Reexamination Certificate

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C250S258000, C525S056000, C525S423000, C525S481000, C525S488000, C525S524000, C525S526000

Reexamination Certificate

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07989561

ABSTRACT:
A thermosetting resin composition include a liquid epoxy resin, a solid epoxy resin, a semisolid epoxy resin, an epoxy curing agent, and a filler. The liquid epoxy resin is liquid at 20° C. and has at least two epoxy groups in a molecule. A solid epoxy resin is solid at 40° C. and has at least three epoxy groups in a molecule. A semisolid epoxy resin is solid at 20° C. and liquid at 40° C. and has at least two epoxy groups in a molecule. A ratio of mass of the liquid epoxy resin to a sum of mass of the solid epoxy resin and mass of the semisolid epoxy resin is about 1:1 to about 1:10, and a ratio of the mass of the solid epoxy resin to the mass of the semisolid epoxy resin is about 1:0.5 to about 1:2.

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Tactix 742, Ciba Data Sheet, Mar. 1998, one page.
Japan Epoxy Resin Co., Ltd., “Product Information”, pp. 1-3 Japan, 2011.
Yuka Shell Epoxy Co., Ltd., “EPIKOTE”, (Oct. 1996), pp. 1-3, Japan.

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