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Metallic Effect Pigments

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*5/3/2012

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Patents with Abstracts

8,133,938 
Radiation diffraction colorants
 
Munro and Merritt of PPG, Ohio, developed metallic effects pigments based on an ordered periodic array of particles held in a polymeric matrix is disclosed; the particles consist of  a core surrounded by a shell of a non-film forming composition that is different from the matrix.  A dispersion of core-shell particles is deposited onto a substrate in an ordered periodic array that diffracts radiation.  The cores are non-swellable and the shells are non-film forming.  This array is covered with a matrix which swells  the shells by diffusing components of the matrix into the shells; and fixing the coated array of particles.

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Roger D. Corneliussen
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Copyright 2012 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen
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** Date of latest addition; date of first entry is 5/3/2012.