Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Reexamination Certificate
2007-07-05
2010-11-30
Vo, Hai (Department: 1787)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
C428S315500, C428S317900, C264S415000, C264S419000, C521S180000
Reexamination Certificate
active
07842379
ABSTRACT:
Polymeric foams having nanocellular morphology are formed from a polymeric material having structural units derived from 2-hydrocarbyl-3,3-bis(hydroxyphenyl)phthalimidine compound. The foams include a plurality of cells having an average diameter of less than 1 micron. Processes for forming the foams include melting a polymeric material having structural units derived from 2-hydrocarbyl-3,3-bis(hydroxyphenyl)phthalimidine compounds; diffusing a blowing agent into the polymeric material to form a mixture; nucleating bubbles in the mixture is at a sufficient temperature and pressure to enable the production of cells having an average diameter of less than 1 micron; stabilizing the cells; and forming the mixture into a desired shape.
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Chatterjee Gautam
Rajendran Santhosh Kumar
Sriraman Ravi
Thiagarajan Chinniah
Vaidyalingam Anand
Cantor & Colburn LLP
Sabic Innovative Plastics IP B.V.
Vo Hai
LandOfFree
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