EP 2121780 A2 20091125 - FINE-PARTICLED POLYMER DISPERSIONS CONTAINING STARCH
Title (en)
FINE-PARTICLED POLYMER DISPERSIONS CONTAINING STARCH
Title (de)
FEINTEILIGE, STÄRKEHALTIGE POLYMERDISPERSIONEN
Title (fr)
DISPERSIONS POLYMÈRES AMYLACÉES EN FINES PARTICULES
Publication
Application
Priority
- EP 2007061854 W 20071105
- EP 06023434 A 20061110
- EP 07822183 A 20071105
Abstract (en)
[origin: WO2008055858A2] The invention relates to fine-particled polymer dispersions which contain starch and which are obtained by the radically initiated emulsion copolymerisation of: a) 30 to 60 % by weight of at least one optionally substituted styrene, acrylonitrile and/or methacrylonitrile, b) 5 to 50 % by weight of at least one acrylic acid -C1-C12-alkyl ester and/or a methacrylic acid -C1-C12-alkyl ester, c) 5 to 30 % by weight of at least one olefin, d) 0 to 10 % by weight of at least one other ethylenically unsaturated copolymerisable monomer, and e) 15 to 35 % by weight of a degraded starch. The total (a) + (b) + (c) + (d) + (e) = 100% and refers to the total content of solid material in an aqueous medium in the presence of at least one redox initiator. The invention also relates to a method for producing the aqueous polymer dispersions by the radical emulsion copolymerisation of components (a) to (e) in an aqueous medium in the presence of a redox initiator, to the use of the thus obtained fine-particled polymer dispersions containing starch as resizing agents for paper, paperboard and cardboard.
IPC 8 full level
C08F 220/00 (2006.01); C08F 2/22 (2006.01); C08F 212/08 (2006.01)
CPC (source: EP US)
C08F 2/22 (2013.01 - EP US); C08F 2/28 (2013.01 - EP US); C08F 2/44 (2013.01 - EP US); C08F 20/44 (2013.01 - EP US); C08F 220/44 (2013.01 - EP US); C08F 251/00 (2013.01 - EP US); C08F 251/02 (2013.01 - EP US); C08L 51/003 (2013.01 - EP US); C08L 51/02 (2013.01 - EP US); C09D 133/18 (2013.01 - EP US); C09J 133/18 (2013.01 - EP US); D21H 17/28 (2013.01 - EP US); C08F 212/08 (2013.01 - EP US); C08F 220/1804 (2020.02 - EP US); C08L 3/00 (2013.01 - EP US); C08L 2666/26 (2013.01 - EP US); D21H 21/16 (2013.01 - EP US)
Citation (search report)
See references of WO 2008055858A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008055858 A2 20080515; WO 2008055858 A3 20090924; CA 2667875 A1 20080515; CN 101636419 A 20100127; EP 2121780 A2 20091125; US 2010069597 A1 20100318
DOCDB simple family (application)
EP 2007061854 W 20071105; CA 2667875 A 20071105; CN 200780041714 A 20071105; EP 07822183 A 20071105; US 51337607 A 20071105