Method for nucleating polymers
AssigneeYissum Research Development Company of the Hebrew University of Jerusalem
InventorsNissim Garti, Abraham Aserin, Dima Libster
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Abstract
The present invention discloses a nucleating microemulsion comprising nanovehicles, each comprising an amphiphilic shell surrounding a nucleating agent. The microemulsion is suitable for the delivery of the nucleating agents into a thermoplastic polymer, thereby allowing crystallization of the polymer.
Claims45
A nucleating microemulsion comprising a plurality of nanovehicles, each having an amphiphilic shell substantially surrounding at least one nucleator.
(canceled)
17-18. (canceled)
32-33. (canceled)
A nanovehicle comprising an amphiphilic shell and at least one nucleator.
A method for the crystallization of a thermoplastic polymer comprising dispersing a nucleating microemulsion of a plurality of nanovehicles in a thermoplastic polymer at the molten state, wherein each of said plurality of nanovehicles comprises at least one nucleator.
A method of increasing the nucleation efficiency of a thermoplastic polymer comprising dispersing a nucleating microemulsion of a plurality of nanovehicles in a thermoplastic polymer at the molten state, wherein each of said plurality of nanovehicles comprises at least one nucleator.
A method for preparing a nucleating microemulsion having a plurality of nanovehicles, said method comprising:
- i. obtaining a microemulsion of a plurality of nanovehicles each having an amphiphatic shell, and ii. admixing into said microemulsion at least one nucleator, thereby obtaining a nucleating microemulsion having a plurality of nanovehicles, each comprising at least one nucleator.
A method of producing an isotropic thermoplastic polymer comprising:
- i. dispersing a nucleating microemulsion of a plurality of nanovehicles in a thermoplastic polymer at the molten state;
- and
- ii. cooling the resulting molten thermoplastic polymer, thereby obtaining the isotropic thermoplastic polymer;
- wherein each of said plurality of nanovehicles of step (i) comprises at least one nucleator solubilized in a system of water, oil, alcohol and at least one amphiphile.
A thermoplastic article obtained by a method of crystallization of at least one thermoplastic polymer, said method comprises:
- i. dispersing a nucleating microemulsion of a plurality of nanovehicles in a thermoplastic polymer at the molten state;
- and ii. cooling the resulting molten thermoplastic polymer;
- iii. optionally molding the resulting thermoplastic polymer into a desired shape;
- wherein each of said plurality of nanovehicles of step (i) comprises at least one nucleator solubilized in a system of water, oil, alcohol and at least one amphiphile.
47-51. (canceled)
Dependencies are inferred from the claim text.