Water-based ink composition for ballpoint pen

Details Water-based ink composition for ballpoint pen Water-based ink composition for ballpoint pen

2007-10-09

2007-10-09

Shosho, Callie (Department: 1714)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S500000

Reexamination Certificate

active

10495229

ABSTRACT:
A water-based ink composition for a ballpoint pen containing at least colored resin particles which have an average particle diameter of 2 to 20 μm and which are non-thermoplastic in a proportion of 5 to 30% by weight based on the total amount of the ink composition and non-colored particles having a glass transition point of lower than 0° C. The average particle diameter of the non-colored particles is controlled preferably to 0.01 to 10 μm. The composition preferably includes at least one selected from ethylene oxide or propylene oxide adducts of glycerin and ethylene oxide or propylene oxide adducts of diglycerin in a proportion of 1 to 30% by weight based on the total amount of the ink composition.

REFERENCES:
patent: 5281262 (1994-01-01), Saito
patent: 5814685 (1998-09-01), Satake et al.
patent: 6099629 (2000-08-01), Morita et al.
patent: 6498203 (2002-12-01), Kito et al.
patent: 556668 (1993-08-01), None
patent: 10-330673 (1998-12-01), None
patent: 2000-103997 (2000-04-01), None
patent: 2000-136339 (2000-05-01), None
patent: 2000136339 (2000-05-01), None
patent: 2001-019888 (2001-01-01), None
patent: 2001-019889 (2001-01-01), None
patent: 2001019890 (2001-01-01), None
Machine Translation of JP 10-330673 A (1998).
Machine Translation of JP 2001-019890 A (2001).
Machine Translation of JP 20000-136339 (2000).

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