High surface area polycondensation polymer particulates based on

Details High surface area polycondensation polymer particulates based on High surface area polycondensation polymer particulates based on

1975-05-27

1976-09-21

Woodberry, Edward M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

106288Q, 260 15, 260 71, C08G 1212

Patent

active

039818454

ABSTRACT:
A highly dispersed solid non-porous insoluble and infusible urea-formaldehyde condensation polymer in the form of a fluffy white powder, said product having a specific surface area of more than 10 square meters per gram and an average particle size smaller than 5 microns. The product preferably essentially consists of approximately spherical microparticles having substantially uniform size and shape and shows a tendency to form loosely agglomerated structures. These solids are useful as rubber reinforcing agents and as paper pigmentary fillers.

REFERENCES:
patent: 3198761 (1965-08-01), O'Donnell
patent: 3238156 (1966-03-01), Kohrn
patent: 3428607 (1969-02-01), Renner
patent: 3553115 (1971-01-01), Curchod et al.
patent: 3737404 (1973-06-01), Berstein

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