Erasable ink composition containing a waterborne polyurethane urea

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United States of America Patent

PATENT NO 5852072
SERIAL NO

08650592

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Abstract

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An erasable ink composition contains a water-insoluble polymeric dye obtained from the polymerization of at least two coreactive polyfunctional monomers with at least one of the monomers possessing a dye moiety covalently bonded thereto. The ink is intended for use in any of a variety of marking instruments, in particular, a ball-point pen.

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Patent Owner(s)

Patent OwnerAddress
BIC CORPORATION A CONNECTICUT CORPORATION500 BIC DRIVE MILFORD CT 06460

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Banning, Jeffery H Spartanburg, SC 61 1480
Chadwick, Barry W Simpsonville, SC 15 259
Chandler, Wayne A Mauldin, SC 6 130
Villiger, David C Greenville, SC 6 130
Wang, Aiying Simpsonville, SC 19 209

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