Title:
FLUORESCENT POLYACRYLATE DISPERSIONS
Document Type and Number:
WIPO Patent Application WO/2013/092515
Kind Code:
A3
Abstract:
An aqueous secondary polyacrylate dispersion comprising a fluorescent dye. The dispersion is obtainable by a method comprising the steps of: a) reacting a first reaction mixture comprising: (M1) hydroxy-functional, free-radically polymerizable monomers; and (M2) hydroxyl-and carboxyl-free (meth)acrylic esters having C1 to C8hydrocarbon radicals in the alcohol moiety and/or vinyl aromatics, thereby obtaining a first reaction mixture product; b) adding a second reactionmixture comprising: (M3) acid-functional, free-radically polymerizable monomers; and (M4) hydroxyl-and carboxyl-free (meth)acrylic esters having C1 to C8hydrocarbon radicals in the alcohol moiety and/or vinyl aromatics to the first reaction mixture product, followed by the reaction of the mixture thus obtained and thereby obtaining a second reaction mixture product; wherein the first reaction mixture further comprises: (M5) nitrile-functional, free-radically polymerizable monomers and the method further comprises the steps adding a neutralizing agent and water and adding a fluorescent dye. The invention furthermore relates to its use as a fluorescent ink and to a method of producing such a dispersion.
Inventors:
SCHINNER MARC CLAUDIUS (DE)
GEWISS HEINZ-DIETMAR (DE)
GEWISS HEINZ-DIETMAR (DE)
Application Number:
PCT/EP2012/075838
Publication Date:
October 10, 2013
Filing Date:
December 17, 2012
Export Citation:
Assignee:
BAYER IP GMBH (DE)
International Classes:
C08F2/00; C08F2/04; C08F2/18; C08L33/08; C08L33/10; C08L33/12; C08L33/20; C09D11/00
Foreign References:
| US4151143A | 1979-04-24 | |||
| EP0225612A2 | 1987-06-16 | |||
| EP0947557A2 | 1999-10-06 | |||
| EP1266941A1 | 2002-12-18 |
Attorney, Agent or Firm:
BIP PATENTS (Creative Campus MonheimAlfred-Nobel-Str. 10, Monheim, DE)
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