Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1977-02-09
1978-07-25
Jacobs, Lewis T.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 312R, 260 312XA, 260 328R, 260 328N, 260 334R, 260 336R, 260 342, C08K 510
Patent
active
041028465
ABSTRACT:
A process for manufacturing a stable dispersion in an organic liquid of particles consisting of (a) a polymer insoluble in the liquid and formed by polymerization of monomer(s) at least one of which is solid at the polymerization temperature and (b) sub-particles of a solid modifying agent for the polymer, the process comprising dispersing the solid monomer and the modifying agent together in the liquid in the presence of a specified dispersing agent so as to form a stable dispersion of solid particles not larger than 50.mu., and heating the dispersion together with any other monomers required, so as to bring about polymerization, in the presence of a specified stabilizing agent for the polymer formed. The functions of dispersing agent and stabilizing agent may be combined in a single substance.
REFERENCES:
patent: 3876603 (1975-04-01), Makhlouf
patent: 3935155 (1976-01-01), Osmond et al.
patent: 3985700 (1976-10-01), Nicks et al.
Barrett, Dispersion Polymerization in Organic Media, Wiley, N.Y. (1975), p. 286.
Dow Corning Technical Bulletin, "Silane Coupling Agents" (received by PTO Oct., 1967), pp. 18-19.
Bentley John
Thompson Morice William
Imperial Chemical Industries Limited
Jacobs Lewis T.
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