Transitorially erasable ink compositions and writing instruments containing same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9809722
APP PUB NO 20170002217A1
SERIAL NO

14788320

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Abstract

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The disclosure provides transitorially erasable ink compositions, including an aliphatic hydrocarbon solvent, a rubber dissolved in the aliphatic hydrocarbon solvent, a hydrophilic pigment, and a surfactant. The disclosure further provides methods of preparing transitorially erasable ink compositions and writing instruments comprising transitorially erasable ink compositions. The disclosed erasable ink compositions write well, have strong color and erase easily transitorially, and demonstrate color stability.

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Patent Owner(s)

Patent OwnerAddress
SANFORD L P6655 PEACHTREE DUNWOODY ROAD ATLANTA GA 30328

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kwan, Wing Sum Vincent Chicago, US 38 346
Zhu, Jiandong Aurora, US 10 28

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