Core-shell particles and preparation and use thereof
First Claim
1. Core-shell particles, whose core and shell materials are capable of forming a two-phase system, the shell material being filmable, the core being essentially form-stable under shell-filming conditions and being swellable by the shell material by not more than 10% of its original value when embedded in the shell material, if at all the cores having a monodisperse size distribution, and there being a difference between the refractive indices of the core material and of the shell material, and wherein the weight ratio of core:
- shell in the particles is within the range from 1⅓
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1 to 20;
1.
1 Assignment
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Accused Products
Abstract
Disclosed are core-shell particles, whose core and shell materials are capable of forming a two-phase system, the shell material being filmable, the core being essentially form-stable under shell-filming conditions and being only very minimally swellable by the shell material, if at all, the cores having a monodisperse size distribution, and there being a difference between the refractive indices of the core material and of the shell material of at least 0.001. Also disclosed are the preparation of the core-shell particles and their use for preparing effect colorants.
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Citations
41 Claims
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1. Core-shell particles, whose core and shell materials are capable of forming a two-phase system, the shell material being filmable, the core being essentially form-stable under shell-filming conditions and being swellable by the shell material by not more than 10% of its original value when embedded in the shell material, if at all the cores having a monodisperse size distribution, and there being a difference between the refractive indices of the core material and of the shell material, and wherein the weight ratio of core:
- shell in the particles is within the range from 1⅓
;
1 to 20;
1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
- shell in the particles is within the range from 1⅓
Specification