Divinylacetylenes as polymerization inhibitors for acrylic and m

Details Divinylacetylenes as polymerization inhibitors for acrylic and m Divinylacetylenes as polymerization inhibitors for acrylic and m

1975-08-21

1977-03-01

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Addition of material to distilland to inhibit or prevent...

For inhibiting or preventing a polymerization reaction

203DIG21, 260526N, C07C 5704, B01D 334

Patent

active

040100820

ABSTRACT:
A method is disclosed for inhibiting the polymerization of acrylic and methacrylic acids at ambient or above ambient temperature, such as during preparation, purification or storage of the acids under substantially anaerobic conditions, by adding thereto a polymerization inhibiting amount of a compound having the formula: ##STR1## where R, R', R", R"' are hydrogen, alkyl or aryl.

REFERENCES:
patent: 2805190 (1957-09-01), Monroe
patent: 3117167 (1964-01-01), Burch
patent: 3150166 (1964-09-01), Pohlemann
patent: 3227628 (1966-01-01), Hess

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