Ball point pen filled with erasable ink

Details Ball point pen filled with erasable ink Ball point pen filled with erasable ink

1998-01-09

1999-11-02

Jagannathan, Vasu

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

Synthetic resins

Processes of preparing a desired or intentional composition...

106 3164, 106 3166, 106 3113, C09D 1100, C09D 1116, C09D 1118

Patent

active

059772115

ABSTRACT:
A ball point pen filled with an erasable ink which comprises a resin or rubber having a filming temperature of 0.degree. C. or lower or a glass transition temperature of 0.degree. C. or lower, pigment particles and water. The erasability and the writing feeling are improved by further blending the ink with a gelatinizer and a lubricant.

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patent: 5840883 (1998-11-01), Suzuki et al.

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