Process for preparing polymer resins

Details Process for preparing polymer resins Process for preparing polymer resins

1977-10-25

1980-06-17

Michl, Paul R.

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

Synthetic resins

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

525252, 525253, 525255, C08F27902

Patent

active

042084903

ABSTRACT:
A process for preparing polymer resins by polymerization of at least one ethylenic monomer onto at least one rubbery polymer optionally grafted with at least one ethylenic monomer which comprises initiating the polymerization in an emulsion system, adding a suspension stabilizer to the polymerization system at the stage after the conversion of the ethylenic monomer to be polymerized reaches 5% by weight and before the emulsion system is broken and then continuing the polymerization in a suspension system until completion of the polymerization. By the process, polymer resins can be produced in particles having a beautiful appearance and an even particle size with a narrow range of particle size distribution.

REFERENCES:
patent: 3436440 (1969-04-01), Abe
patent: 3657172 (1972-04-01), Gallagher
patent: 3663655 (1972-05-01), Sturt
patent: 3663657 (1972-05-01), Sturt
patent: 3862913 (1975-01-01), Sturt
patent: 4011283 (1977-03-01), Sturt

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