Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2005-02-08
2005-02-08
Zalukaeva, Tatyana (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S287000, C526S307500, C524S556000, C524S560000, C524S817000, C524S401000, C524S431000, C524S432000, C524S437000
Reexamination Certificate
active
06852817
ABSTRACT:
This invention provides a pigment dispersing resin which is a copolymer of:(A) sulfonic group-containing polymerizable unsaturated monomer,(B) polyoxyalkylene chain-containing nonionic polymerizable unsaturated monomer,(C) (C-1) (meth)acrylic acid ester type polymerizable monomer having two tertiary alkyl groups per molecule and/or (C-2) (meth)acrylic acid ester type polymerizable monomer having one tertiary alkyl group and one secondary hydroxyl group per molecule, and(D) other ethylenically unsaturated monomer; and also provides water-based pigment dispersion which comprises said pigment dispersing resin, pigment, aqueous medium and, as circumstances may demand, basic neutralizer and/or dispersing agent as well.
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Hoshida Yuko
Kamimori Isao
Yukawa Yoshiyuki
Kansai Paint Co. Ltd.
Sastri Satya
Wenderoth , Lind & Ponack, L.L.P.
Zalukaeva Tatyana
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