Stabilizing additives for thermochromic pigments
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United States of America Patent
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Apr 11, 2017
Issued Date -
N/A
app pub date -
Dec 18, 2015
filing date -
Dec 28, 2012
priority date (Note) -
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Abstract
A microencapsulation process is improved by adding a stabilizing agent that contains one or more catalytic organo-metal oxide materials, such as metal soaps. This functions as a crosslinker by causing unsaturated bonds in the microcapsule walls to react, thereby stabilizing the microcapsules against the effects of additives to coatings that, otherwise, degrade the functionality of thermochromic or photochromic materials at the microcapsule core.
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International Classification(s)
- C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
- B41M:PRINTING, DUPLICATING, MARKING, OR COPYING PROCESS....
- A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....
- C09D:COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQ....
- B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....
- C09B:ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PROD....
- A61Q:USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
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