Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From heterocyclic reactant containing as ring atoms oxygen,...
Patent
1976-01-26
1979-05-29
Nielsen, Earl A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From heterocyclic reactant containing as ring atoms oxygen,...
162164EP, 252 88, 260 292EP, 2605676P, 528404, C08G 6532, C08G 6524
Patent
active
041567757
ABSTRACT:
Properties of fibrous materials, e.g., wet and dry strength of paper, are significantly improved by incorporating a cationic polyether into a fibrous material such as pulp. The polyether bears ammonium salt groups exemplified by the formula: ##STR1## wherein R.sub.1 and R.sub.2 are individually hydrogen, hydrocarbyl such as alkyl, hydroxyhydrocarbyl, or hydrocarbylamino; E is individually ##STR2## or E and R.sub.1 are collectively ##STR3## wherein R is hydrogen or alkyl, R.sub.3 is hydroxyl, halogen, hydrogen or hydrocarbyl, R.sub.4 is hydrogen or hydrocarbyl; and A.sup..crclbar. is an anion of an ammonium salt. Such polyethers also function as retention aids for sizing agents and dyes and as antistatic agents.
REFERENCES:
patent: 3428680 (1969-02-01), Walker et al.
patent: 3625684 (1971-12-01), Poot et al.
patent: 3640766 (1972-02-01), Jursich et al.
patent: 3684784 (1972-08-01), Marze
patent: 3746678 (1973-07-01), Dick et al.
patent: 3824158 (1974-07-01), Rosenberg
patent: 3864288 (1975-02-01), Riew et al.
Dick et al., "Amine-Modified Polyalkylene Oxides", Chem. Abstracts 81, 106298r (1974).
Evani Syamalarao
Killat George R.
Nielsen Earl A.
The Dow Chemical Company
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