Process of preparing free-flowing antiozonant blends

Details Process of preparing free-flowing antiozonant blends Process of preparing free-flowing antiozonant blends

1974-03-11

1976-08-17

Padgett, Benjamin R.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

260 459R, 252401, C09K 1516, C08K 516

Patent

active

039752976

ABSTRACT:
A mixture of diaryl-p-phenylenediamines is added in solid form to a partially crystallized melt of N-1,3-dimethylbutyl,N'-phenyl-p-phenylenediamine, and the crystallization completed to form a free-flowing antiozonant blend. Other rubber additives can be substituted for the amine mixture.

REFERENCES:
patent: 3247161 (1966-04-01), Cox
patent: 3304284 (1967-02-01), Cox
patent: 3304285 (1967-02-01), Cox
patent: 3384614 (1968-05-01), Rosenwald
patent: 3424713 (1969-01-01), Oberster
patent: 3502615 (1970-03-01), Rosenwald
patent: 3507826 (1970-04-01), Lal
patent: 3530076 (1970-09-01), Sparks
patent: 3542692 (1970-11-01), Spaent
patent: 3674705 (1972-07-01), Hytrek
patent: 3785995 (1974-01-01), Kalil
Encyclopedia of Polymer Science and Technology 1965, vol. No. 2, pp. 197-203.

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