Distillation: processes – separatory – Addition of material to distilland to inhibit or prevent... – For inhibiting or preventing a polymerization reaction
Patent
1976-03-30
1980-07-01
Garner, Vivian
Distillation: processes, separatory
Addition of material to distilland to inhibit or prevent...
For inhibiting or preventing a polymerization reaction
203 57, 203DIG21, 562598, 562600, 560 4, C07C 5150, C07C 5704, B01D 334
Patent
active
042104939
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:
REFERENCES:
patent: 2787634 (1957-04-01), Coover, Jr. et al.
patent: 3227628 (1966-01-01), Hess
patent: 3527822 (1970-09-01), Benson, Jr.
patent: 3830707 (1974-08-01), Kageyama et al.
Merritt Richard F.
Stewart Thomas
Garner Vivian
Rohm and Haas Company
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