×

Pigment dispersed liquid, production method for the same, and light curable ink composition using the pigment dispersed liquid

  • US 7,968,621 B2
  • Filed: 12/15/2006
  • Issued: 06/28/2011
  • Est. Priority Date: 12/19/2005
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for manufacturing a pigment dispersed liquid for use in forming a light curable composition, the method consisting essentially of the following steps:

  • (a) providing a polymerizable compound of N-vinylformamide or ethyleneglycol monoallyletlher;

    (b) preparing a mixture by mixing, a pigment;

    a polyoxyalkylene polyalkylene amine of formula (C2H4N)—

    (PO)x(EO)y

    OH, wherein n, x and y are each at least one;

    a polymerization inhibitor which is p-methoxyphenol; and

    the polymerizable compound of N-vinylformamide or ethyleneglycol monoallylether, and(c) dispersing the mixture to form the pigment dispersed liquid, wherein the polymerization inhibitor is present in the pigment dispersed liquid in an amount less than 0.01 wt %.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×