Compounds for reducing background color in color change compositions

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10570294
APP PUB NO 20170066931A1
SERIAL NO

15354872

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Abstract

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Aspects of the invention include color change compositions having a color former and color developer composition that transitions from a first color state to a second color state upon application of an applied stimulus and an amount of a copolymer sufficient to eliminate background color of the color former and color developer composition during transition from the first color state to the second color state. Methods for preparing and devices employing the color change compositions of the invention are also described.

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Patent Owner(s)

Patent OwnerAddress
SEGAN INDUSTRIES INCP O BOX 367 BURLINGAME CA 94011-0367

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ribi, Hans O Hillsborough, US 73 2539

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