Mechanically frothed plastisols

Details Mechanically frothed plastisols Mechanically frothed plastisols

1993-10-06

1994-08-02

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 73, 521 78, 521 79, C08J 930

Patent

active

053346220

ABSTRACT:
An improved process for production and delivery of a plastisol foam is provided. By the process, plastisol foam is maintained under controlled pressures and conditioned to enhance homogeneity and percent foam. Also provided is a process for intermittently dispensing a fluid such as a plastisol foam, by which drip may be prevented. Additionally provided is novel apparatus for preventing drip.

REFERENCES:
patent: 3703485 (1972-11-01), Fischer
patent: 3970620 (1976-07-01), Idhe, Jr.
patent: 4301119 (1981-11-01), Cobbs, Jr. et al.
patent: 4423161 (1983-01-01), Cobb, Jr. et al.
patent: 4485520 (1984-12-01), Haudl et al.
Technical Data Book S-38, GE Silicones, "Surfactants for Mechanically Frothed Vinyl Plastisols," pp. 1-4, 8-9.
Joslyn, "Mechanically Frothed PVC Foam Using Silicones: State of the Art Report," parts A,B,C.1.-C.7.,D.3.-E.2, FIGS. 1-4, Tables I,II,VII,VIII, Graphs 1-4 (1975).

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