Compositions – Magnetic – With wax – bitumen – resin – or gum
Patent
1990-06-12
1991-01-15
Straub, Gary P.
Compositions
Magnetic
With wax, bitumen, resin, or gum
252 6253, 428403, 428405, 435176, 435180, 435188, H01F 126, H01F 128, C12N 1108, C12N 1114
Patent
active
049851667
ABSTRACT:
Magnetizable composite particles, optionally in aqueous dispersion, consisting of a matrix based on a crosslinked organopolysiloxane, optionally bearing nonvinyl reactive and/or ionic units and magnetizable components less than 300 angstroms in diameter encapsulated in the matrix. The magnetizable composite particles are prepared by homogenizing a solution of the organopolysiloxane, an organohydrogenpolysilioxane optionally bearing ionic and/or reactive units, and a magnetic fluid, in the presence of water and a surfactant, performing a hydrosilylation in an aqueous emulsion, removing the organic solvents and the organic carrier liquid, and at least partially removing the water. The magnetizable composite particles are useful in biological applications.
REFERENCES:
patent: 3159601 (1964-12-01), Ashby
patent: 3159662 (1964-12-01), Ashby
patent: 3220972 (1965-11-01), Lamoreaux
patent: 3296291 (1967-01-01), Chalk et al.
patent: 3344111 (1967-09-01), Chalk
patent: 3436366 (1969-04-01), Modic
patent: 3652761 (1972-03-01), Weetall
patent: 3715334 (1973-02-01), Karstedt
patent: 3775452 (1973-11-01), Karstedt
patent: 3814730 (1974-06-01), Karstedt
patent: 3843540 (1974-10-01), Reimers et al.
patent: 3928629 (1975-12-01), Chandra et al.
patent: 4356098 (1982-10-01), Chagnon
patent: 4369265 (1983-01-01), Buxbaum et al.
patent: 4370160 (1983-01-01), Ziemelis
patent: 4476188 (1984-10-01), Blizzard et al.
patent: 4552812 (1985-11-01), Margel et al.
patent: 4558147 (1985-12-01), Eckberg et al.
patent: 4695392 (1987-09-01), Whitehead et al.
patent: 4818614 (1989-04-01), Fukui et al.
Rhone-Poulenc Technical Bulletin, 3/3/87.
Leising Frederic
Torres Ghislaine
Kalinchak Stephen G.
Rhone-Poulenc Chimie
Straub Gary P.
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