Preparation of multimodal polymer dispersions using...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

Reexamination Certificate

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C524S556000, C524S563000, C524S459000

Reexamination Certificate

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10918121

ABSTRACT:
A description is given of a process for preparing bimodal or multimodal polymers from olefinically unsaturated monomers in an aqueous medium.The process features the introduction as initial charge of selected mixtures of polymeric stabilizers and of at least one selected ionic comonomer.In the polymerization process the monomer is metered continuously or discontinuously into the said initial charge.In this way it is possible by means of simple process measures to prepare bimodal or multimodal dispersions.

REFERENCES:
patent: 4254004 (1981-03-01), Abbey
patent: 4395500 (1983-07-01), Löhr et al.
patent: 4456726 (1984-06-01), Siol et al.
patent: 4459726 (1984-07-01), Siol et al.
patent: 5990221 (1999-11-01), Dames et al.
patent: 6706805 (2004-03-01), Weitzel
patent: 2003/0065079 (2003-04-01), Weitzel
patent: 30 36 969 (1982-05-01), None
patent: 209 837 (1984-05-01), None
patent: 19628142 (1998-01-01), None
patent: 0 081 083 (1983-06-01), None
patent: 0 567 819 (1993-11-01), None
patent: 0 818 471 (1998-01-01), None
patent: WO-84/00369 (1984-02-01), None
patent: WO-90/08786 (1990-08-01), None
Türk, Ulrich, “Herstellung von Styrol-Butadien-Copolymerdispersionen mit einem speziellen Emulgator-Initiator-System,” Die Angewandte Makromolekulare Chemie 46:109-133 (1975).
Lepizzera, S. M., et al, “Nucleation of particles in seeded emulsion polymerization of vinyl acetate with poly(vinyl alcohol) as emulsifier,” Macrolol. Chem. Phys. 195:3103-3115 (1994).

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