Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Reexamination Certificate
2006-10-31
2006-10-31
Harlan, Robert D. (Department: 1713)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
C428S032320
Reexamination Certificate
active
07128972
ABSTRACT:
The present invention comprises wrinkled polymer particle comprising a polyester-containing particle having a surface covered with at least one wrinkle comprising folds, ridges, crevices and channels. The present invention further comprises a method of forming wrinkled polyester-containing particles comprising preparing a mixture of an organic phase and an aqueous phase, said mixture comprising an unsaturated precursor polyester, a water immiscible organic solvent, at least one organic-soluble ethylenically unsaturated monomer, and initiator, subjecting said mixture to high energy emulsification, initiating crosslinking of said polyester after emulsification, and removing said water immiscible organic solvent to recover wrinkled polyester-containing particles.
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Landry-Coltrain Christine J.
Leon Jeffrey W.
Blank Lynne M.
Harlan Robert D.
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