Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1979-11-05
1981-06-16
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
528 48, 260 334UR, C08K 505, C08K 513, C08G 1806
Patent
active
042739012
ABSTRACT:
A crosslinked vinylidene chloride polymer microgel powder is recovered from a latex and dispersed with moderate shear in a nonsolvent for vinylidene chloride polymers, such as a polyol used in the preparation of polyurethane materials. A dispersion of the powder and a polyol is eminently suited for use in the preparation of polyurethane foams to impart enhanced flame-retardancy and load-bearing properties thereto.
REFERENCES:
patent: 3317450 (1967-05-01), Grenley et al.
patent: 3424706 (1969-01-01), Smith et al.
patent: 3483154 (1969-12-01), Gibbs
patent: 3916060 (1975-10-01), Fish et al.
patent: 4186259 (1980-01-01), Bush et al.
Benson Jack H.
Fernandez Reet T.
Gibbs Dale S.
Ingraham R. B.
Kulkosky Peter F.
Schofer Joseph L.
The Dow Chemical Company
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