Active energy beam-curable composition

• US 20030158286A1
• Filed: 01/27/2003
• Published: 08/21/2003
• Est. Priority Date: 01/28/2002
• Status: Abandoned Application

• Current Assignee: Brother Kogyo Kabushiki Kaisha
• Original Assignee: Brother Kogyo Kabushiki Kaisha
• Inventors: Nishizaki, Masahiro, Maeda, Minobu
• Application Number:
  US10/351,485
• Publication Number:
  US 20030158286A1
• Time in Patent Office: Days
• US Class Current: 522/168
• CPC Class Codes: C08G 2650/16 Photopolymerisation
• CPC Class Codes: C08G 65/105 Onium compounds
• CPC Class Codes: C08G 65/18 Oxetanes
• CPC Class Codes: C09B 67/0033 Blends of pigments; Mixtured crystals; Solid solutions
• CPC Class Codes: C09B 67/009 polymeric dispersing agent
• CPC Class Codes: G03F 7/038 Macromolecular compounds which are rendered insoluble or differentially wettable G03F7/075 takes precedence; macromolecular azides G03F7/012; macromolecular diazonium compounds G03F7/021
• CPC Class Codes: G03F 7/105 having substances, e.g. indicators, for forming visible images

Abstract

An active energy beam-curable composition comprises an epoxy compound, an oxetane compound, a photo-cationic polymerization initiator, a pigment as a coloring agent, and a pigment dispersing agent. The pigment dispersing agent contains an active ingredient of a comb-shaped polymer in which an anchor is a base and which is liquid at room temperature. Therefore, the adhesion performance is satisfactory even on a base material such as polycarbonate on which it has been impossible to obtain any satisfactory adhesion performance with any conventional active energy beam-curable composition.

Claims

1. An active energy beam-curable composition comprising an epoxy compound (A), an oxetane compound (B), a photo-cationic polymerization initiator (C), a pigment (D) as a coloring agent, and a pigment dispersing agent (E), wherein:

the pigment dispersing agent (E) contains a comb-shaped polymer in which an anchor is a base and which is liquid at room temperature.

2. The active energy beam-curable composition according to claim 1, wherein the pigment dispersing agent (E) consists of the comb-shaped polymer.

3. The active energy beam-curable composition according to claim 1, wherein the comb-shaped polymer is a graft polymer.

4. The active energy beam-curable composition according to claim 1, wherein the comb-shaped polymer is a graft polymer, and the graft polymer is a graft polymer of poly(ethyleneimine)-poly(1,2-hydroxystearic acid).

5. The active energy beam-curable composition according to claim 1, wherein the epoxy compound (A) is blended in an amount of 5 to 95 parts by weight, the oxetane compound (B) is blended in an amount of 5 to 95 parts by weight, the photo-cationic polymerization initiator (C) is blended in an amount of 0.5 to 12 parts by weight, and the pigment dispersing agent (E) is blended in an amount of not more than 20 parts by weight, provided that a total amount of the epoxy compound (A) and the oxetane compound (B) is 100 parts by weight.

6. The active energy beam-curable composition according to claim 1, wherein the pigment dispersing agent (E) is blended such that a weight ratio of the dispersing agent to the pigment (D) is not more than 2.