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:
Apr. 15, 1986
Filed:
Dec. 20, 1984
Pradip S Mehta, Corpus Christi, TX (US);
USM Corporation, Flemington, NJ (US);
Abstract
Rotary processors and methods for mixing a low viscosity liquid with a viscous material while controlling plugging of the means for introducing low viscosity liquid to the processor. Viscous material is introduced to a mixing rotary processor comprising at least one annular channel carried by a rotor and enclosed by a housing to form a mixing passage. The material is dragged forward by the rotating channel walls from the passage inlet past a spreader as films on the channel walls, forming a void downstream of the spreader between the films. Low viscosity liquid is sprayed from a point within the void to be deposited on and carried downstream with the films of material and to be mixed with material collected at a passage end wall. In one embodiment, pressure sealing means permits spraying into a saturated vapor zone in the void so that liquid vaporizes and is condensed onto the films as well distributed fine droplets. An especially preferred embodiment provides devolatilizing apparatus in which a low viscosity, low boiling devolatilizing aid is deposited onto and mixed with a viscous material to aid in the removal of one or more difficultly devolatilizable impurities.