US 2010/0147476 A1 · Hydrophobically Modified Poly(aminoamides)

Abstract

Disclosed herein are hydrophobically-modified poly(aminoamides) useful as fixative detackifiers for stickies and pitch control in papermaking processes. These polymers are prepared via modification of amine-containing water-soluble poly(aminoamides) with reactive functional group-containing hydrophobic compounds. In particular, poly(aminoamides) may be modified, under appropriate reaction conditions, with long chain alkyl glycidyl ether, AKD (alkyl ketene dimer), ASA (alkyl succinyl anhydride), or Quab (3-chloro-2-hydroxypropyl-N,N,N-dimethylalkyl ammonium chloride). These novel polymers are effective in inhibiting deposition of organic contaminants in pulp and papermaking systems.

Claims20

Dependent claims

A water-soluble, cationic polymer comprising randomly distributed units of formula (I):

wherein X on said unit of formula (I) is a moiety selected from the group consisting of moieties of formulae (II), (III), (IV), (V), (VI), (VII), and (VIII):
wherein
(a) R1 and R2, identically or differently, are a straight chain or branched aliphatic or olefinic or aromatic group having up to 22 carbon atoms and up to 4 double bonds;
(b) Y is a straight chain or branched aliphatic or olefinic or aromatic group having up to 20 carbon atoms and up to 8 double bonds;
and
(c) p and in are integers in the range of from 2 to 10.

3 more elements

Dependencies are inferred from the claim text.

Hydrophobically Modified Poly(aminoamides)

Life of this patent

Hydrophobically Modified Poly(aminoamides)

Life of this patent

Abstract

Claims20