Variable die for use in drying synthetic elastomers

Details Variable die for use in drying synthetic elastomers Variable die for use in drying synthetic elastomers

2004-05-25

2008-08-05

Davis, Robert B (Department: 1791)

Drying and gas or vapor contact with solids

Process

With nondrying treating of material

C034S398000, C034S079000, C159S002200, C159S047100, C425S191000, C425S198000

Reexamination Certificate

active

07406779

ABSTRACT:
Apparatus and methodologies are provided for flash drying liquid materials using a variable die. A die and a die body are provided with an adjustably configured pressure regulating variable obstruction in the material flow path that allows control of the pressure applied to the material and consequent control of the temperature of the material as it enters the die. Optimizing pressure and temperature allows optimization of the flash drying process.

REFERENCES:
patent: 3067462 (1962-12-01), Kullgren
patent: 3178770 (1965-04-01), Willis
patent: 3225453 (1965-12-01), Burner
patent: 3230865 (1966-01-01), Hibbel et al.
patent: 3672641 (1972-06-01), Slaby
patent: 3766848 (1973-10-01), French et al.
patent: 3834440 (1974-09-01), McCracken
patent: 6025004 (2000-02-01), Speck et al.

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