Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1977-12-30
1980-11-25
Michl, Paul R.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 296WA, 428392, C08L 7700
Patent
active
042357640
ABSTRACT:
A size composition for glass fibers is disclosed. The composition consists essentially of an aqueous dispersion of a polyvinyl alcohol, a water dispersible cationic epichlorohydrin polyamide copolymer and a flocculent polymer. The polyvinyl alcohol has a degree of hydrolysis ranging from 85 percent to 90 percent and a molecular weight such that a 4 percent by weight aqueous solution thereof has a viscosity of from 4 to 6 centipoises. The cationic epichlorohydrin polyamide copolymer is one wherein the polyamide can be based upon diethylene triamine. The flocculent polymer is a medium-high to high cationic polymer or copolymer having a quaternized amine function. The polymer or copolymer is of at least 40 percent by weight of a monomer having an acrylic function and an amine function where the acrylic function is acrylate or methacrylate, any co-monomer being an acrylamide. The quaternized copolymer has a molecular weight sufficiently high that a 1 percent solution thereof in water has a Brookfield viscosity from 1200 to 1600 centipoises.
REFERENCES:
patent: 3249412 (1966-05-01), Kolek
patent: 3772870 (1973-11-01), Wong
patent: 3817898 (1974-06-01), Ward
patent: 3935344 (1976-01-01), Haggerty
patent: 4126729 (1978-11-01), Richardson
Dereser Ernst H.
Meulders Jean-Marie
Cloutier Philip R.
Hudgens Ronald C.
Michl Paul R.
Owens-Corning Fiberglas Corporation
Wilkens James B.
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