Dispersible vinylidene chloride polymer powders as additives for

Details Dispersible vinylidene chloride polymer powders as additives for Dispersible vinylidene chloride polymer powders as additives for

1981-10-19

1986-03-11

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

521155, 521159, 521170, C08J 7500, C08G 1806

Patent

active

045755299

ABSTRACT:
A vinylidene chloride polymer powder, having a second order transition temperature of at least about 50.degree. C., is recovered from a latex and dispersed with moderate shear in a non-solvent 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 suitable for use in the preparation of polyurethane foams to impart enhanced flame retardancy and load-bearing properties thereto.

REFERENCES:
patent: 2459746 (1949-01-01), Radcliffe
patent: 3226370 (1965-12-01), Poindexter
patent: 3424706 (1969-01-01), Smith et al.
patent: 3916060 (1975-10-01), Fish et al.
patent: 4115640 (1960-09-01), Kalka
patent: 4186259 (1980-01-01), Bush et al.
patent: 4211684 (1980-07-01), Koyama et al.

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