Compound for color-producing composition, and recording...

Details Compound for color-producing composition, and recording... Compound for color-producing composition, and recording...

2009-10-21

2010-10-05

Oh, Taylor Victor (Department: 1625)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C560S157000, C560S158000, C560S163000, C560S165000

Reexamination Certificate

active

07807738

ABSTRACT:
A urea-urethane compound having one or more urea groups and one or more urethane groups in the molecular structure, the number of said urea groups (A) and the number of said urethane groups (B) satisfying the following numerical formula:in-line-formulae description="In-line Formulae" end="lead"?10≧(A+B)≧3in-line-formulae description="In-line Formulae" end="tail"?wherein each of A and B is an integer of 1 or more.

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