Glass sizing composition
AssigneeCelanese International Corporation
InventorsCharles R. Key, Rajeev Farwaha
Life of this patent
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Abstract
The present invention relates to a sizing composition for use on glass fibers which are used to reinforce plastic resins used in the formation of fiber-reinforced plastics (FRPs). The sizing composition comprises a copolymer formed from at least one functional monomer that is selected from the group consisting of hydroxy, phenyl and alkoxylated functional groups. The glass fibers sized with the sizing composition of the invention have excellent computability with resins used in forming FRPs, as seen by a low level of white glass.
Claims17
A sizing composition for glass fibers comprising a film-forming functional copolymer binder comprising:
- a) 0.1 to 30 percent by weight of functional monomer units selected from the group consisting of hydroxy functional monomer units, phenyl functional monomer units, alkoxylated functional monomer units, and mixtures thereof;
- and
- b) 70 to 99.9 percent by weight of one or more non-functional ethylenically unsaturated monomer units.
A glass fiber which is used to prepare a fiber-reinforced plastic wherein said glass fiber has directly deposited thereon a film-forming functional copolymer composition comprising on a solids/solids basis:
- a) 0.1 to 30 percent by weight of functional monomer units selected from the group consisting of hydroxy functional monomer units, phenyl functional monomer units, alkoxylated functional monomer units, and mixtures thereof;
- and
- b) 70 to 99.9 percent by weight of one or more non-functional ethylenically unsaturated monomer units.
A fiber-reinforced plastic comprising a plastic resin and glass fibers, said glass fibers having directly coated thereon a film-forming functional copolymer composition comprising:
- a) 0.1 to 30 percent by weight of functional monomer units selected from the group consisting of hydroxy functional monomer units, phenyl functional monomer units, alkoxylated functional monomer units, and mixtures thereof;
- and
- b) 70 to 99.9 percent by weight of one or more non-functional ethylenically unsaturated monomer units.
Dependencies are inferred from the claim text.