Method of improving the sorption capacity of polymers

Details Method of improving the sorption capacity of polymers Method of improving the sorption capacity of polymers

1976-02-27

1978-01-03

Smith, Ronald H.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8166, 260 25FP, 260 25HA, 260 25HB, 260 25N, 427245, 427322, 427343, 427373, 428311, D06P 500, B05D 304

Patent

active

040663876

ABSTRACT:
A method of improving the sorption capacity of a substantially hydrophobic, thermoplastic polymer, which comprises introducing into the polymer a halogen by contacting the polymer with a solution containing the halogen under conditions which avoid chemical reaction of the halogen with the polymer, separating the free halogen-containing polymer from the solution, and contacting the polymer with a reagent which pervades the polymer and reacts with the free halogen contained therein so as to produce a gas as one of the reaction products. The product polymers have increased sorption capacity and improved dyeability and are capable of sorbing and retaining useful substances such as medicaments, pesticides and perfumes.

REFERENCES:
patent: 2913424 (1959-11-01), Gumboldt et al.
patent: 3215486 (1965-11-01), Hada et al.

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