Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1980-12-30
1983-01-18
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523217, 106288R, 428378, 428391, 65 341, C03C 2502
Patent
active
043692648
ABSTRACT:
Glass fibers are treated with an aqueous treating composition having a lubricant and either a mixture of heat stable organic peroxide, vinyl-containing coupling agent and nonionic surfactant and optionally a film former such as polyvinylacetate or carboxylated compatible polymer film former like carboxylated polypropylene and an amino coupling agent. Other materials such as softeners, pigments and the like may be added to the aqueous treating composition. The treated glass fiber strands are used in the form of continuous glass strands or chopped strands or a mixture thereof to prepare glass fiber strand mat for use in reinforcing thermoplastic polymers. Thermoplastic polymers reinforced with mats made of the treated glass fiber strands of the present invention have improved stamping properties.
REFERENCES:
patent: 2938812 (1960-05-01), Marzocchi et al.
patent: 3849148 (1974-11-01), Temple
patent: 3852051 (1974-12-01), Fahey
patent: 3882068 (1975-05-01), Swartz
patent: 4016129 (1977-04-01), Miyosawa
patent: 4188421 (1980-02-01), Matsuura et al.
Baumann John A.
Cates Raymond H.
Picone Charles E.
PPG Industries Inc.
Sarofim N.
Schofer Joseph L.
Stachel Kenneth J.
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