Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1985-06-05
1986-07-22
Nielsen, Earl
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
156330, 428252, 428901, 525114, 525122, 528297, 528361, C08G 5924, C08G 5942
Patent
active
046019448
ABSTRACT:
Disclosed is a composition that includes a liquid prepolymer that is the reaction product of a monoanhydride, a cycloaliphatic epoxy, and an alcohol. Also included in the composition is a maleated polybutadiene that is a reaction product of butadiene, maleic anhydride, and an oxygen scavenger. The composition also includes a tertiary amine accelerator, a free-radical initiator, and a solvent. A prepreg is prepared from the composition by immersing a porous substrate into the composition, drying and curing to the B-stage. A laminate is prepared by forming a stack of prepregs and heating under pressure to the C-stage.
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Sawatari et al., Chemical Abstracts, 90, 153203b (1979).
Hosaka et al., Chemical Abstracts, 87, 185518n (1977).
Fuerle R. D.
Nielsen Earl
Westinghouse Electric Corp.
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