Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From halogenated hydrocarbon reactant
Patent
1985-03-29
1987-06-16
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From halogenated hydrocarbon reactant
524612, 528324, 528332, 528335, 528342, 528391, 528392, 528405, 528421, 528422, C08G 6100, D21H 358
Patent
active
046737294
ABSTRACT:
The present invention relates to agents for increasing the retention of fibres, fillers and pigments and for accelerating drainage in papermaking, and as flocculating agents in the working up of effluents from papermaking by filtration, sedimentation and flotation. They are characterized in that they contain, as active components, one or more nitrogen-containing condensation products which can be obtained by reacting (A) aliphatic polyol-ether-amines which are free from halogen groups, contain cohesive polyether segments and carry no amino groups within these segments, with (B) compounds which are polyfunctional towards amino groups, optionally in the presence of (C) polyaminopolyamides and/or (D) polyalkylenepolyamines, component (B) being employed in an amount such that water-soluble polycondensates which have a viscosity of 100 to 1,000 mPa.s at 25.degree. C. in 25% strength aqueous solution are formed.
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patent: 4450045 (1984-05-01), Hertel et al.
Benn Otto
Cramm Gunther
Muszik Janos
Schroer Wolf-Dieter
Anderson Harold D.
Bayer Aktiengesellschaft
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