Opacifying particles

Details Opacifying particles Opacifying particles

2005-06-22

2009-08-25

Gulakowski, Randy (Department: 1796)

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

C428S407000, C523S201000, C523S212000

Reexamination Certificate

active

07579081

ABSTRACT:
An opacifying particle including a pigment particle having an average particle diameter of from 0.005 to 5 microns and an index of refraction of at least 1.8; a first polymer attached to the surface of the pigment particle via a silane residue; and a second polymer which substantially encapsulates the pigment particle having the attached first polymer is provided. Also provided is a method for forming the opacifying particle as is a coating composition and a plastic composition including the opacifying particle.

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