EP 1954632 A1 20080813 - NANOPARTICLES
Title (en)
NANOPARTICLES
Title (de)
NANOPARTIKEL
Title (fr)
NANOPARTICULES
Publication
Application
Priority
- EP 2006010330 W 20061026
- DE 102005056621 A 20051125
Abstract (en)
[origin: DE102005056621A1] Modified zinc oxide nano-particles with an average particle size of 3-20 nm (determined by means of particle correlation spectroscopy and/or transmissions electron microscope), whose particle surface is modified with at least a copolymer from at least one monomer with hydrophobic residues and at least one monomer with hydrophilic residues. The zinc oxide nano-particles are obtained by converting nano-particle precursor in an organic solvent to nano-particles and terminating the growth of nano-particles. Modified zinc oxide nano-particles with an average particle size of 3-20 nm (determined by means of particle correlation spectroscopy and/or transmissions electron microscope), whose particle surface is modified with at least a copolymer from at least one monomer with hydrophobic residues and at least one monomer with hydrophilic residues. The zinc oxide nano-particles are obtainable by converting nano-particle precursor in an organic solvent to nano-particles and terminating the growth of nano-particles, if the reaction solution reaches the adsorption edge to the desired value in the ultra violet/visible spectrum, by adding the copolymer. Independent claims are included for: (1) a dispersion containing the nano-particles as well as a polymer or solvents as dispersion medium; (2) an UV-stabilized polymer preparation essentially consisting of at least a polymer, where the polymer contains the nano-particles; and (3) a method for the production of UV-stabilized polymer preparation, comprising mixing a polymer material with nano-particles and/or the dispersion, preferably in an extrusion or a kneading machine.
IPC 8 full level
C01G 9/02 (2006.01); C08K 3/22 (2006.01); C08K 9/08 (2006.01); C08L 33/10 (2006.01); C09C 1/04 (2006.01); C09D 7/48 (2018.01); C09D 7/65 (2018.01)
CPC (source: EP KR US)
B82B 3/00 (2013.01 - KR); B82Y 30/00 (2013.01 - EP US); C01G 9/02 (2013.01 - EP US); C09C 1/043 (2013.01 - EP US); C09D 7/48 (2017.12 - EP US); C09D 7/65 (2017.12 - EP US); C09D 7/67 (2017.12 - EP US); C09D 7/70 (2017.12 - EP US); B82Y 40/00 (2013.01 - KR); C01P 2004/64 (2013.01 - EP US); C08K 3/22 (2013.01 - EP US); C08K 9/08 (2013.01 - EP US); Y10T 428/254 (2015.01 - EP US); Y10T 428/2927 (2015.01 - EP US)
Citation (search report)
See references of WO 2007059843A1
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 NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102005056621 A1 20070531; CN 101312911 A 20081126; EP 1954632 A1 20080813; KR 20080070865 A 20080731; US 2010221525 A1 20100902; WO 2007059843 A1 20070531
DOCDB simple family (application)
DE 102005056621 A 20051125; CN 200680043974 A 20061026; EP 06818298 A 20061026; EP 2006010330 W 20061026; KR 20087014857 A 20080619; US 6382406 A 20061026