Method and apparatus for producing hips using continuous polybut

Details Method and apparatus for producing hips using continuous polybut Method and apparatus for producing hips using continuous polybut

1999-06-11

2000-11-07

Szekely, Peter A.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

523340, C08F27902

Patent

active

061438332

ABSTRACT:
A method and apparatus for use in making high impact polystyrene by polymerizing butadiene into polybutadiene, continuously exchanging styrene monomer for the solvent used to produce the polybutadiene, and polymerizing the resultant polybutadiene/styrene solution into high impact polystyrene. Apparatus is disclosed that includes butadiene and solvent preparation means, additive metering means, butadiene polymerization means, solvent exchange means, solvent recovery means and styrene polymerization means.

REFERENCES:
patent: 4271060 (1981-06-01), Hubby
patent: 4375524 (1983-03-01), Rowe
patent: 4482677 (1984-11-01), Teranaka et al.
patent: 4495028 (1985-01-01), Rowe
patent: 4686086 (1987-08-01), Rowe
patent: 4777210 (1988-10-01), Sosa et al.
patent: 5955537 (1999-09-01), Steininge-Clites et al.

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