The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 13, 1981
Filed:
Apr. 01, 1980
Robert R Klein, Berkeley Heights, NJ (US);
Henry S Makowski, deceased, late of Scotch Plains, NJ (US);
Exxon Research & Engineering Co., Florham Park, NJ (US);
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.