Retractable marker pen and inks therefor

Compositions: coating or plastic – Coating or plastic compositions – Corrosion inhibiting coating composition

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

106 19F, 401108, 401109, C09D 1100, B43K 516

Patent

active

051748142

ABSTRACT:
Retractable marker pens and ink formulations for marker pens. The ink formulation has particular utility as a fluorescent ink for highlighting text or print. The formulation reduces the rate of ink evaporation from conventional felt, fiber or plastic marker tips. This property makes the ink especially suitable for use in retractable marker pens which do not normally employ a separate tight fitting cap or a lint guard to protect the marker tip from ink evaporation when the marker pen is in non-use. The ink formulation exhibits excellent flow characteristics to conventional felt, fiber or plastic marker tips over a wide range in tip widths. The ink does not leak from the tip and does not penetrate paper so as to obscure text or printed material on the opposite side of the paper. The ink is composed of a fluorescent dye, selected from methine, xanthene and anthraquinone dyes dissolved in a multicomponent solvent system. The solvent system is preferably a four component system composed of diethylene glycol, propylene glycol, 2-pyrrolidone and demineralized water.

REFERENCES:
patent: 3637316 (1972-01-01), Bross
patent: 3912520 (1975-10-01), Miyajima et al.
patent: 4077807 (1978-03-01), Kramer et al.
patent: 4153593 (1979-05-01), Zabiak et al.
patent: 4269525 (1981-05-01), Melikian
patent: 4540300 (1985-09-01), Midorikawa
patent: 4702742 (1987-10-01), Iwata et al.
patent: 4711592 (1987-12-01), Gregory
patent: 4759650 (1988-07-01), Granoff

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Retractable marker pen and inks therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Retractable marker pen and inks therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Retractable marker pen and inks therefor will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1884391

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.