Process for producing amine functional derivatives of poly (viny

Details Process for producing amine functional derivatives of poly (viny Process for producing amine functional derivatives of poly (viny

1998-03-26

2000-08-22

Reddick, Judy M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

524503, 524557, 525 58, 525375, C08F 800, C08F 812

Patent

active

061074012

ABSTRACT:
This invention relates to a process for producing an aminoalkylal derivative of polymer containing a plurality of polymerized vinyl alcohol units which are vicinal, preferably a process for producing the 4-aminobutyral of poly(vinyl alcohol). The improved process for the amino-acetalization of such polymers described herein comprises reacting a 5 of 6 member cyclic imine of the structure ##STR1## wherein n is an integer from 3 to 4 with the polymer containing a plurality of polymerized vinyl alcohol units. In a preferred reaction, 1,2-pyrroline is reacted with the polymer containing polymerized vinyl alcohol units under acidic conditions. Preferably the reaction is carried out by a slurry phase process employing a non solvent carrier such as methanol for the poly(vinyl alcohol). The reaction scheme for preparing the 4-aminobutyral of poly(vinyl alcohol) may be characterized by the following equation. ##STR2##

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