Cotelomer compounds

Details Cotelomer compounds Cotelomer compounds

1985-07-10

1987-07-21

Wax, Robert A.

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

210701, 210700, 252175, 252180, 252181, 526233, 526240, 526273, 526277, 526278, C02F 514

Patent

active

046816860

ABSTRACT:
New cotelomer compounds having the formula I ##STR1## and salts thereof wherein A is a random polymeric residue comprising at least one unit of formula II ##STR2## and at least one unit of formula III, different from a unit of formula II, ##STR3## and B is hydrogen or a residue A; wherein m and n are integers such that the sum of m+n is an integer of from 3 to 100, the ratio of n:m being from 99 to 1:1 to 99, provided that the resulting telomers are water-soluble and wherein m and/or n in a residue A may be the same as or different from m and/or n in a residue B; R is hydrogen, methyl or ethyl;

REFERENCES:
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patent: 3709816 (1973-01-01), Walker et al.
patent: 3928196 (1975-12-01), Persinski et al.
patent: 4015991 (1977-04-01), Persinski et al.
patent: 4029577 (1977-06-01), Godlewski et al.
patent: 4052160 (1977-10-01), Cook et al.
patent: 4207405 (1980-06-01), Masler, III et al.
patent: 4374733 (1983-02-01), Snyder et al.
patent: 4389324 (1983-06-01), Keller
patent: 4534866 (1985-08-01), Becker
patent: 4552665 (1985-11-01), Ralston et al.

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