Process for monitoring polycondensation or polyaddition reaction

Details Process for monitoring polycondensation or polyaddition reaction Process for monitoring polycondensation or polyaddition reaction

1995-07-19

1996-11-26

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

25033911, 25033912, 2503418, G01N 2135

Patent

active

055788270

ABSTRACT:
This invention relates to a process for monitoring polycondensation or polyaddition reactions by measuring the OH, NH or NCO value or acid value of participating reactants by means of infra-red ATR spectroscopy of the associated, temperature-dependent absorption bands and compensating for the temperature dependence by calibrating the self-absorption of the ATR measuring crystal.

REFERENCES:
patent: 4404642 (1983-09-01), Rosenthal
patent: 4798954 (1989-01-01), Stevenson

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