Particles with designed different sized discrete pores

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United States of America Patent

PATENT NO 9815958
SERIAL NO

15133267

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Abstract

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Polymeric porous particles have a continuous organic solid phase and at least two sets of discrete pores that are isolated from each other within the continuous phase and that have different average sizes. One set of discrete pores has a larger average size than another set of discrete pores by at least 50%. At least one set of discrete pores is free of detectably different marker materials. There porous particles can be prepared using evaporative limited coalescence techniques with especially chosen discrete pore stabilizing hydrocolloids to protect the pores during formation and to provide the different average sizes. The resulting porous particles can be incorporated into articles of various types and having various shapes.

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Patent Owner(s)

  • EASTMAN KODAK COMPANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boris, David Charles Webster, US 5 29
Hosmer, Teresa Joy Webster, US 5 29
Nair, Mridula Penfield, US 170 1725

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