Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1976-08-30
1978-03-21
Levin, Stanford M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
260 4R, 260 5, 260772, 260816R, 260887, 260889, 260890, 260894, 526 43, 528498, C08F 610, C08C 206
Patent
active
040804950
ABSTRACT:
In the preparation of chlorinated polymers by chlorination in an organic solvent and separation of the solid product by treatment with steam or hot water the proportion of residual solvent in the product is reduced by carrying out the treatment with steam or hot water in the presence of a polymer derived from an olefinic hydrocarbon or chlorohydrocarbon and having a second-order transition temperature below 0.degree. C.
REFERENCES:
patent: 2334277 (1943-11-01), Morrell et al.
Imperial Chemical Industries Limited
Levin Stanford M.
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