Epoxy resin for fiber reinforced composite materials

Details Epoxy resin for fiber reinforced composite materials Epoxy resin for fiber reinforced composite materials

2007-04-24

2007-04-24

Feely, Michael J. (Department: 1712)

Stock material or miscellaneous articles

Composite

Of epoxy ether

C428S297400, C523S400000, C525S523000, C525S524000, C525S529000

Reexamination Certificate

active

10420776

ABSTRACT:
An epoxy resin composition for a cured material, comprising (A) an epoxy resin comprising an epoxy compound X, the epoxy compound X has an epoxy equivalent weight of at least 400, (B) a curing agent, and (C) a liquid rubber that is liquid at room temperature and comprises a reactive group; wherein the epoxy compound X has a solubility parameter value of SpX, the liquid rubber has a solubility parameter value of SpY and the ratio of SpY/SpX could be in the range of 0.7 to 1.3; and wherein the liquid rubber could form no visible domains by optical microscopy or has a maximum domain size of at most 3 microns in the cured material is described. The epoxy resin composition provides a fiber-reinforced material with higher compressive modulus and strength, toughness and better handling ability over standard epoxy resin systems. This invention is excellent for small thin walled tube structures like fishing rods or applications that require good compressive strength.

REFERENCES:
patent: 4129670 (1978-12-01), Riew
patent: 4500660 (1985-02-01), Minamisawa et al.
patent: 4883712 (1989-11-01), Ogawa et al.
patent: 6302666 (1994-04-01), Hino et al.
patent: 6013730 (2000-01-01), McGrail et al.
patent: 6063839 (2000-05-01), Oosedo et al.
patent: 6287696 (2001-09-01), Noda et al.
patent: 6429157 (2002-08-01), Kishi et al.
patent: 6451876 (2002-09-01), Koshy
R. A. Pearson, et al., “Toughening mechanisms in elastomer-modified epoxies”, Journal of Materials Science 21 (1986) p. 2475-2488.
R. A. Pearson, et al., “Influence of particle size and particle size distribution on toughening mechanisms in rubber-modified epoxies”, Journal of Materials Science 26 (1991) p. 3828-3844.
D. Verchere et al., “Rubber-modified epoxies. IV. Influence of morphology on mechanical properties”, Journal of Applied Polymer Science, vol. 43, p. 293-304 (1991).
A. F. Yee et al., “The importance of constraint relief caused by rubber cavitation in the toughening of epoxy”, Journal of Materials Science 28 (1993) p. 6392-6398.
B. J. Caldwell et al., “Rate and temperature effects on the fracture toughness of a rubber-modified epoxy”, POLYMER, 1993, vol. 34, No. 8, p. 1695-1701.

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