Morphology control of substituted diacetylenic monomers for...

Details Morphology control of substituted diacetylenic monomers for... Morphology control of substituted diacetylenic monomers for...

2007-01-09

2007-01-09

Davis, Brian (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C436S056000

Reexamination Certificate

active

10900448

ABSTRACT:
A system for recovering a diacetylenic monomer shelf life monitoring compound of reduced particle size and narrow size distribution range which comprises quenching a solution of the monomer by mixing the solution in a lower temperature quenching fluid having a base temperature which is at least about 30° C. below the nominal temperature at which the monomer compound recrystallizes from solution, the mixing being effected in such a manner as to limit the resulting quenching mixture temperature to one which is not higher than a maximum of about 15° C. above the quenching fluid base temperature.

REFERENCES:
patent: 3999946 (1976-12-01), Patel et al.
patent: 4189399 (1980-02-01), Patel
patent: 4384980 (1983-05-01), Patel
patent: 4788151 (1988-11-01), Preziosi et al.
patent: 4789637 (1988-12-01), Preziosi et al.

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