Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1980-04-01
1981-10-13
Levin, Stanford M.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
525232, 526282, 526336, 526339, 528497, 528498, C08F 612
Patent
active
042947448
ABSTRACT:
A process for forming a powdered EPDM terpolymer, wherein the powder of said EPDM terpolymer has a volume density of about 10 to about 30 lb/ft.sup.3 which includes the steps of adding a cement of an EPDM terpolymer in a hydrocarbon solvent to water, a volume ratio of the water to the cement being about 60 to 1 to about 2 to 1; emulsify under high-shear the blend of the water and the cement thereby forming a dispersion of particles of the EPDM terpolymer in the water; steam stripping under high agitation the emulsified blend of the EPDM terpolymer, the water and the solvent thereby removing the solvent from the emulsified blend; filtering the dispersion of the particles of the EPDM terpolymer in the water to recover a wet powder of the EPDM terpolymer; and hot-air drying the wet powder of the EPDM terpolymer in a fluid-bed dryer.
REFERENCES:
patent: 3437645 (1969-04-01), Paige et al.
patent: 3895035 (1975-07-01), Berg et al.
patent: 3922240 (1975-11-01), Berg et al.
patent: 3929707 (1975-12-01), Berg et al.
patent: 3945978 (1976-03-01), Berg et al.
patent: 3998778 (1976-12-01), Berg et al.
patent: 4124559 (1978-11-01), Koch et al.
Klein Robert R.
Makowski, deceased Henry S.
Exxon Research & Engineering Co.
Levin Stanford M.
Nanfeldt Richard E.
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