Method for producing treated glass cloth

Details Method for producing treated glass cloth Method for producing treated glass cloth

1990-10-29

1993-08-17

Beck, Shrive

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428245, 428273, 428378, 428391, 427386, 427387, 4273898, 4274073, D03D 1510

Patent

active

052367770

ABSTRACT:
The present invention provides a method for producing a glass cloth which is suitable as a reinforcing material for making resin laminates and which comprises subjecting filaments of glass fibers to a sizing treatment with a sizing agent containing at least one water-soluble film forming agent selected from the group consisting of an amine-modified epoxy resin, an ethylene oxide-added epoxy resin and ethylene oxide-added bisphenol A as film forming component, forming glass yarns from the thus treated filaments, weaving the glass yarns to make a glass cloth, washing the glass cloth with water until the loss of ignition of the sizing agent to the glass cloth reaches 0.25% by weight or less, and then treating this glass cloth with a solution of a surface treating agent.

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