Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1995-03-24
1997-08-19
Warzel, Mark L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528162, 528212, 528219, 528230, 528232, 210723, 210728, 210730, 210736, C08G 804, C02F 156
Patent
active
056590024
ABSTRACT:
The invention is a process for preparing alkylated tannin Mannich polymers by reacting a tannin Mannich condensation polymer, prepared from a condensed tannin, and amine, and formaldehyde, with an alkylating agent at a pH between 5 and 14. Optionally, the alkylated tannin Mannich polymer may be reacted further with formaldehyde to increase its viscosity.
The invention further comprises a method of removing color form waste water utilizing the alkylated tannin Mannich polymer produced by the above process.
REFERENCES:
patent: 4558080 (1985-12-01), Quamme et al.
Finck Martha R.
Reed Peter E.
Charlier Patricia A.
Drake James J.
Miller Robert A.
Nalco Chemical Company
Warzel Mark L.
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