Polylactone foams and methods of making the same
AssigneeNovomer, Inc.
InventorUtpal Mahendra Vakil
Life of this patent
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Abstract
The present invention is directed to compositions comprising polylactone melt, extrudate, and processes for producing a foam. In exemplary embodiments of the present invention, the processes comprise: heating a polylactone composition containing a biobased polylactone in a reaction vessel; and subjecting the polylactone composition to molding to give a foamed structure.
Claims21
1-39. (canceled)
A composition, comprising:
- a. a polylactone polymer being end-capped with a thermally stable compound;
- and
- b. one or more blowing agents,
- wherein the composition is foam-able when heated and mixed.
A foam, comprising:
- a. a polylactone polymer being end capped by a thermally stable compound;
- and
- b. one or more blowing agents.
The foam of claim 51, wherein the one or more blowing agents includes one or more of water, carbonate salts, a carbon-dioxide-releasing materials, diazo compounds, nitrogen-producing materials, carbon dioxide, decomposing polymeric materials, poly(t-butylmethacrylate), polyacrylic acid, carbon dioxide, nitrogen, pentane, isopentane, cyclopentane, or a combination thereof.
A process, comprising:
- heating an end-capped polylactone to produce polylactone melt;
- and
- processing the polylactone melt to produce a foam.
Dependencies are inferred from the claim text.