Process for reducing the free aldehyde content in N-alkylol amid

Details Process for reducing the free aldehyde content in N-alkylol amid Process for reducing the free aldehyde content in N-alkylol amid

1993-02-25

1995-05-16

Cannon, James C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

5263031, 526304, 528230, 548547, 560160, 562567, 564208, 427392, 428290, 428361, D04H 164

Patent

active

054159261

ABSTRACT:
In a process for the preparation of N-alkylol amide monomers wherein a polymerizable amide is reacted with an aldehyde, the improvement which comprises adjusting the pH of the resulting N-alkylol amide monomer to pH 10-11 and adding thereto an alkali or alkali earth metal borohydride at a temperature of -10.degree. to 20.degree. C. so as to convert the residual free aldehyde in the equilibrium mixture to the corresponding alcohol.

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American Cyanamid Company, Wayne, New Jersey; PRC-485; "NMA Special".
Morton International, Inc., "Pure.RTM. VenPure.RTM.", Process Stream Purification, Technical Manual and Users Guide.

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