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Patent Searching and Data


Title:
POLYMER DISPERSIONS CONTAINING STARCH
Document Type and Number:
WIPO Patent Application WO2002014393
Kind Code:
A8
Abstract:
The invention relates to a method for producing a polymer dispersion by copolymerisation of 20 - 70 weight parts of a monomer mixture comprising c) 2.5 - 100 wt. % of one or more (meth) acrylic acid esters of monovalent, saturated C3-C8 alcohols as monomers A, and 0 - 97.5 wt. % of one or more other ethylenlically unsaturated monomers as monomers B in 100 weight parts of an aqueous solution which contains 5 - 35 wt.- % of a starch or a starch derivative, in emulsion polymerisation in the presence of an initiator containing peroxide groups, whereby the initiator and monomer can be continually dosed. In a first supply period of 5 - 60 minutes a first amount of an initiator is dosed and in a second supply period of 15 - 180 minutes a second amount of an initiator is dosed. The first amount of initiator is greater than the second amount of initiator.

Inventors:
KUEHN INGOLF (DE)
SCHUHMACHER RUDOLF (DE)
Application Number:
PCT/EP2001/008897
Publication Date:
August 08, 2002
Filing Date:
August 01, 2001
Export Citation:
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Assignee:
BASF AG (DE)
KUEHN INGOLF (DE)
SCHUHMACHER RUDOLF (DE)
International Classes:
C08B31/00; C08F2/22; C08F251/00; C08F251/02; C09D151/02; D21H21/16; D21H17/28; D21H17/43; (IPC1-7): C08F251/00; C08F220/00; C08B31/00; C08L3/00; D21H17/00
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