Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Reexamination Certificate
2006-05-02
2006-05-02
Acquah, Samuel A. (Department: 1711)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
C264S004100, C264S004300, C264S004320, C264S004330, C264S004400, C264S004700
Reexamination Certificate
active
07037582
ABSTRACT:
A series of paraffin compounds, the phase change materials (PCMs), were microencapsulated in an interfacial polymerization process to form the double-shell microcapsules with relatively low shell permeability. The inner shell is formed through the reaction between polypropylene glycols and bifunctional polyisocyanates and the outer through the reaction between bifunctional polyisocyanates and polyamines added in the continuous aqueous phase. The so prepared microencapsulated paraffin compounds emulsion can be used as the medium for temperature management in many fields.
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Li Yi
Newton Edward
Xing Jiangwei
Yeung Kwok-Wing
Acquah Samuel A.
Burns Doane Swecker & Mathis L.L.P.
The Hong Kong Polytechnic University
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