Photochromic brightening pigment
First Claim
Patent Images
1. A photochromic brightening pigment comprising:
- a brightening pigment; and
a photochromic material being encapsulated so as to adhere it to the surface of said brightening pigment.
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Abstract
A photochromic brightening pigment comprises a brightening pigment and a photochromic material which is encapsulated so as to adhere it to the surface of the brightening pigment.
12 Citations
13 Claims
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1. A photochromic brightening pigment comprising:
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a brightening pigment; and a photochromic material being encapsulated so as to adhere it to the surface of said brightening pigment. - View Dependent Claims (2, 3, 4, 12, 13)
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5. A photochromic brightening pigment comprising:
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a brightening pigment; a resin paste, having a photochromic material dissolved or dispersed therein, said resin being mixed with said brightening pigment; and a capsule wall film encapsulating the mixture of said brightening pigment and said resin paste. - View Dependent Claims (6, 7, 8)
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9. A method of preparing a photochromic brightening pigment, comprising the steps of:
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preparing a resin paste containing a photochromic material dissolved or dispersed therein; mixing said resin paste with a brightening pigment; and encapsulating said mixture. - View Dependent Claims (10, 11)
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Specification