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Patent Searching and Data


Title:
POLYVINYL ALCOHOL BLOCK COPOLYMER AND AQUEOUS PIGMENT DISPERSIONS AND RECORDING FLUIDS MADE BY USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2004/090006
Kind Code:
A1
Abstract:
The invention aims at providing recording fluids which permit feathering-free and high-quality printing in high density and can give fast prints excellent in light fastness and water resistance and which exhibit low viscosity, good ejection and excellent storage stability. The invention relates to a polyvinyl alcohol block copolymer represented by the general formula (1); aqueous pigment dispersions each comprising an aqueous medium, the block copolymer and a pigment; and recording fluids containing the dispersions: (1) wherein A is a polyvinyl alcohol block; B is a block comprising a hydrophobic segment (B’) and a hydrophilic or hydrophobic segment (B”) other than the components (A) and (B’); X1, X2, X3, and X4 are each hydrogen, halogeno, alkyl, aryl, or aralkyl (with the proviso that each organic group has 1 to 20 carbon atoms and may be any of straight-chain, branched and cyclic ones), and X1, X2, X3, and X4 may be different from each another; and m1 and m2 are an integer of 1 to 5 and an integer of 0 to 4 respectively and the sum of m1 and m2 is 1 to 5.

Inventors:
UENO NOBUHIKO (JP)
SAITO TAKAHIRO (JP)
YOKOYAMA MASANOBU (JP)
AKAI HIDEKO (JP)
TANAKA HIDEAKI (JP)
Application Number:
PCT/JP2004/004659
Publication Date:
October 21, 2004
Filing Date:
March 31, 2004
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP (JP)
UENO NOBUHIKO (JP)
SAITO TAKAHIRO (JP)
YOKOYAMA MASANOBU (JP)
AKAI HIDEKO (JP)
TANAKA HIDEAKI (JP)
International Classes:
B41J2/01; B41M5/00; C08F293/00; C08K5/00; C08L53/00; C09D11/00; C09D11/322; C09D11/324; C09D11/328; C09D17/00; C09D153/00; (IPC1-7): C08F293/00; C09D17/00; C09D11/00
Foreign References:
JP2001019770A2001-01-23
JP2001233678A2001-08-28
JPH06134401A1994-05-17
JPH06136036A1994-05-17
JPS59189113A1984-10-26
JPS59189114A1984-10-26
Other References:
See also references of EP 1609807A4
Attorney, Agent or Firm:
Hagino, Taira (13th Floor ARK Mori Building, 12-32, Akasaka 1-chom, Minato-ku Tokyo, JP)
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