Crosslinked polymeric ammonium salts

Details Crosslinked polymeric ammonium salts Crosslinked polymeric ammonium salts

1997-11-03

1999-02-23

Truong, Duc

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

Synthetic resins

Nitrogen-containing reactant

528288, 528332, 528343, 528395, 528486, 424 7812, 424 7814, 514909, A61K 31785, C08G 7300

Patent

active

058745220

ABSTRACT:
Disclosed are novel crosslinked polymeric ammonium salts wherein in said polymeric salt: about 25% or more of the segments which link ammonium nitrogen atoms are group Y wherein Y is an n-alkylene group or alkyl substituted n-alkylene group, wherein said n-alkylene group has 7 to about 20 carbon atoms; zero to about 75% of segments which link ammonium nitrogen atoms are group Z wherein Z is a hydrocarbylene radical containing 2 or more carbon atoms, said hydrocarbylene radical optionally containing one or more hydroxyl, ether, amino, thioether, keto, or silyl groups or heterocyclic rings; and about 25% or more of the ammonium atoms are secondary ammonium atoms.

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