Method for the single-step production of vinyl polymers

Details Method for the single-step production of vinyl polymers Method for the single-step production of vinyl polymers

1985-11-08

1987-09-01

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526173, 5263441, 526918, 422135, C08F 202, C08F 1406

Patent

active

046909893

ABSTRACT:
The invention relates to a method and to a reactor for the single-step polymerization of vinyl monomers by a heterogeneous polymerization in bulk by means of organometalic catalysts. A method according to the invention consists in charging a vertical reactor, which is provided with at least two planetary stirrers situated outside the reactor axis, each stirrer formed from a planar centrally-symmetrical two-blade paddle, with a vinyl monomer, the subsequent introduction of an organometalic catalyst in a solution under stirring and in partial doses amounting to 10.sup.-5 to 10.sup.-3 mole up to the final amount of 5.times.10.sup.-4 to 5.times.10.sup.-2 mole of catalyst per mole of monomer, stirring of the batch, cutting and disintegration of the formed compact mass with the planetary stirrers and its parallel wiping from the surface of reactor with wiping blades until the batch acquires a powdery form and the resulting product is discharged.

REFERENCES:
patent: 3362793 (1968-01-01), Massoubre
patent: 3469948 (1969-09-01), Anderson et al.
patent: 3799917 (1974-03-01), Rathke
patent: 3875131 (1975-04-01), Lim et al.
patent: 3877881 (1975-04-01), Ono et al.
patent: 4277585 (1981-07-01), Fournel et al.
patent: 4325915 (1982-04-01), Sato et al.
patent: 4438074 (1984-03-01), Wilt

Affiliated with

Also associated with

Rating

Method for the single-step production of vinyl polymers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for the single-step production of vinyl polymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the single-step production of vinyl polymers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1265471