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US 2011/0217498 A1Published application
Creep resistant article
AssigneePRS Mediterranean Ltd.
InventorsIzhar Halahmi, Oded Erez, Adi Erez
Life of this patent
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Abstract
Disclosed are creep resistant articles having a polyolefin in a continuous phase and fibrils or lamellae of polyester, polyamide, or mixtures thereof dispersed in the continuous phase.
Claims35
A creep resistant article, comprising:
- a continuous phase made of a polyolefin;
- and
- a dispersed phase in the form of fibrils or lamellae, made of a polyester, a polyamide, or mixtures thereof;
- wherein the dispersed phase has an average thickness of at most 2 micrometers and an average length of at least 4 micrometers.
1 more element
A method for producing an oriented polyolefin alloy, comprising:
- melt kneading a precursor composition to form an alloy, the precursor composition comprising:
- (1) a polyolefin, (2) a second polymer selected from a polyester, a polyamide, or a mixture thereof, and (3) an optional compatibilizer;
- and
- applying tensile forces to the alloy, when solid or semi-molten, to form fibrils or lamellae of the second polymer dispersed within a matrix formed by the polyolefin, thereby forming an oriented polyolefin alloy.
1 more element
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An oriented polyolefin alloy comprising:
- a polyolefin matrix;
- and
- a second polymer dispersed within the polyolefin matrix;
- wherein the second polymer is a polyester, a polyamide, or a mixture of a polyester and a polyamide;
- wherein the second polymer is in the form of fibrils or lamellae;
- and
- wherein the fibrils or lamellae have an aspect ratio of at least 2.
4 more elements
A method for producing a polyolefin composition, comprising:
- forming a dispersion comprising (1) a polyolefin, (2) a polyester, polyamide, or a mixture thereof, and (3) an optional compatibilizer;
- melt kneading the dispersion to form an alloy;
- stretching the alloy to produce fibrils or lamellae of the polyester, polyamide, or mixture thereof in a matrix of the polyolefin.
Dependencies are inferred from the claim text.