Process for producing prepreg

Details Process for producing prepreg Process for producing prepreg

1994-12-12

1997-03-18

Woo, Jay H.

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Coated or impregnated woven, knit, or nonwoven fabric which...

Coated or impregnated synthetic organic fiber fabric

264126, 264137, 264147, 264257, 2642893, 264DIG47, 428902, B29C 7050, B29C 7010

Patent

active

056121253

ABSTRACT:
The present invention provides a prepreg obtained by stretching a material including, as a main component, an ultra-high-molecular-weight polyethylene having an intrinsic viscosity of 5-50 dl/g as measured at 135.degree. C. in decalin, to a total draw ratio of at least 20, subjecting the resulting stretched polyethylene material to a splitting treatment, and impregnating the resulting material with a thermosetting resin, and a process for producing said prepreg. The split stretched polyethylene material has improved adhesion to the impregnant resin and can be used as a good base material for prepreg.

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