Removal of residual solvent from acrylic acid polymer

Details Removal of residual solvent from acrylic acid polymer Removal of residual solvent from acrylic acid polymer

1990-01-16

1992-03-03

Teskin, Fred

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

Synthetic resins

Treating polymer containing material or treating a solid...

34 10, 34 30, C08F 600

Patent

active

050934724

ABSTRACT:
The present invention relates to an acrylic acid synthetic polymer, said polymer being cross-linked, having high molecular weight and containing 56% to 68% by weight carboxy groups (--COOH), characterized in that it contains no more than 10 ppm solvent; and to a process for the preparation thereof.

REFERENCES:
patent: 4518768 (1985-05-01), Scheurer et al.
patent: 4525581 (1985-06-01), Denzinger et al.
patent: 4546160 (1985-10-01), Brand et al.
patent: 4929690 (1990-05-01), Goertz et al.
1990 U.S. Pharmacopeia National Formulary U.S.P. XXII, NF XVII, pp. 1910-1912.
Chemical Abstracts Data Base Computer Printout of Sept. 11, 1990.

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