Crosslinked triacrylate polymer beads

Details Crosslinked triacrylate polymer beads Crosslinked triacrylate polymer beads

1982-04-22

1983-11-08

McCamish, Marion

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

5263231, 5263232, B32B 516

Patent

active

044142781

ABSTRACT:
Discrete, substantially nonswellable crosslinked polymeric beads, 0.7 to 20 .mu.m average diameter wherein at least 90% of the beads by population are below 20 .mu.m, which are nonagglomerating in any solvent or solvents including solvents for the liquid monomer or monomers used in preparation thereof. The polymeric beads are homopolymers of tri- and tetraacrylate and tri- and tetramethacrylate monomers, copolymers thereof, copolymers of one of said acrylate or methacrylate monomers with up to 50% of a monomer having a single terminal ethylenic group or with up to 75% of a monomer having two terminal ethylenic groups or three terminal ethylenic groups different from said triacrylate or trimethacrylate monomers defined above.

REFERENCES:
patent: 2701245 (1955-02-01), Lynn
patent: 3313748 (1967-04-01), Burke, Jr.
patent: 4191672 (1980-03-01), Salome et al.
patent: 4277536 (1981-07-01), Podszun et al.

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