Skinless porous particle PVC resin and process for producing sam

Details Skinless porous particle PVC resin and process for producing sam Skinless porous particle PVC resin and process for producing sam

1987-10-06

1988-07-05

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 57, 521 59, 521145, 526201, 526202, 5263442, 526 81, C08V 928

Patent

active

047555394

ABSTRACT:
Porous particles of vinyl resin are disclosed where said particles are non-spherical in shape, highly porous, skinless and friable. Processes are also disclosed for producing these novel particles. The particles are preferably PVC and exhibit an ability to absorb large amounts of plasticizer in a short time.

REFERENCES:
patent: 3706722 (1972-12-01), Nelson et al.
patent: 4229547 (1980-10-01), Cohen et al.
patent: 4435524 (1984-03-01), Dinbergs
patent: 4458057 (1984-07-01), Basu
patent: 4603151 (1986-07-01), Dinbergs

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