Apparatus for making post-foaming gels and method

Details Apparatus for making post-foaming gels and method Apparatus for making post-foaming gels and method

1989-05-03

1990-12-25

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

141 3, 252305, 252 90, B01J 1300

Patent

active

049800850

ABSTRACT:
An apparatus for making post-foaming gels comprising, a piston chamber having an outer case defining a chamber, a piston being slidably received in the case and separating the chamber into a first compartment adjacent one end of the case for retaining a gel base, and a second compartment adjacent the other end of the case for retaining a compressed gas, with said piston having a hollow stem extending out of the other end of the case. The apparatus has a device for circulating the gel base through the stem and first compartment, and a device for introducing a foaming agent to the gel base while it is being circulated through the piston chamber.

REFERENCES:
patent: 3541581 (1970-11-01), Monson
patent: 3705855 (1972-12-01), Marschner
patent: 4405489 (1983-09-01), Sisbarro
patent: 4589452 (1986-05-01), Clanet
patent: 4727914 (1988-03-01), Anderson, III et al.
patent: 4753747 (1988-06-01), Clark et al.
Derwent Abstract, 72-21477T/14.

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