Color-developing agent resin composition, emulsion thereof...

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making

Reexamination Certificate

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Details

C430S332000, C430S338000, C430S962000, C503S203000

Reexamination Certificate

active

07153628

ABSTRACT:
The present invention relates to a color-developing agent resin composition, which contains: (1) a phenolic resin represented by formula I; and (2) a blend of graft copolymers of a phenolic resin and a multivalent metal salt polymer of a substituted aryl carboxylic acid, said graft copolymers are represented by (II) and (III). The present invention further relates to a resin emulsion containing the color-developing agent resin composition and a method for preparing the same. The color-developing agent resin composition and the color-developing agent resin emulsion of the present invention are used for no-carbon copying paper as special resin color-developing agents. They have advantages of not only fast developing at a low temperature and bright colors, but also heavy developing strength and good light-aging resistance of writing, and furthermore, their coatings are not easy to turn yellow when they are hold in the air, and the like.

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CN1200378A: Graft Copolymer of Modified Phenolic Resin and Metallic Carboxylate, https://www.delphion.com/details?pn=CN)1200378A, Jun. 3, 2004, 1 page.
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