Process for production of polymeric polyblends

Details Process for production of polymeric polyblends Process for production of polymeric polyblends

1975-06-17

1976-10-19

Michl, Paul R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C08L 906

Patent

active

039871240

ABSTRACT:
This invention relates to an improved process for producing polyblends wherein said process has unexpectedly high rates of polymerization wherein a polymerizable mixture of a monovinylidene aromatic monomer and a diene rubber are partially polymerized en masse through phase inversion with the partially polymerized mixture being suspended in an inert liquid and the polymerization essentially completed; the improvement comprising utilizing a particular catalyst system, in combination with, a saturated aliphatic acid containing 12 to 20 carbon atoms and a compound selected from the group consisting of hydrated salts and water in the mass and suspension polymerization steps of the process. Said catalyst system having a half life of less than one hour at 130.degree. C., and a 10 hour half life at a temperature of 95.degree. to 115.degree. C.

REFERENCES:
patent: 3428712 (1969-02-01), Carrock
patent: 3439065 (1969-04-01), Luftglass
patent: 3448175 (1969-06-01), Doak
patent: 3579612 (1971-05-01), Lowell
patent: 3644587 (1972-02-01), Finberg

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