Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1991-09-24
1994-01-11
Seidleck, James J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 52, 422203, 422225, C08F27902
Patent
active
052782530
ABSTRACT:
A process for the continuous preparation of ABS polymers by free-radical-initiated polymerization of, in particular, styrene and acrylonitrile in the presence of polybutadiene, in the presence or absence of a solvent, in a reactor cascade comprising at least 3 stirred reactors operating essentially without back-mixing, at least some of which contain internal cooling tubes for dissipating the heat of polymerization, at from 50 to 180.degree. C., phase inversion taking place in one of the reactors which contains means for generating a high shear force, and an apparatus for carrying out the process comprising an essentially cylindrical/tubular vessel jacket and a cylindrical internal element connected to a stirrer shaft by rotational force and having an external diameter which is slightly less than the internal diameter of the vessel jacket.
REFERENCES:
patent: 3243481 (1966-03-01), Ruffing et al.
patent: 4198383 (1980-04-01), Konsetov et al.
patent: 4252911 (1981-02-01), Simon
patent: 4282334 (1981-08-01), Walter et al.
patent: 4410659 (1983-10-01), Lee et al.
patent: 4421895 (1983-12-01), Echte et al.
patent: 4925896 (1990-05-01), Matarrese et al.
European Search Report Apr. 1992.
JP 54/070 350 Chem. Abst. Jun. 1979.
JP 63/207/803 Chem. Abst. Aug. 1988.
JP 63/207 804 Chem. Abst. Aug. 1988.
JP 63/199 717 Chem. Abst. Aug. 1988.
Baumgartner Ehrenfried
Hormann Juergen
Moors Rainer
Schaech Hansjoerg
BASF - Aktiengesellschaft
Jagannathan Vasu S.
Seidleck James J.
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