Inorganic Composite
First Claim
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1. An inorganic particle and polymer composite comprising:
- (a) about 30 to 87 vol.-% of an inorganic mineral particle having a particle size PS greater than about 5 microns having a coating of about 0.005 to 5 wt-% of an interfacial modifier, the percentage based on the composite; and
(b) a polymer phase.
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Abstract
The invention relates to a nonmetallic inorganic or mineral particulate polymer composite having enhanced viscoelastic and rheological properties.
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Citations
55 Claims
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1. An inorganic particle and polymer composite comprising:
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(a) about 30 to 87 vol.-% of an inorganic mineral particle having a particle size PS greater than about 5 microns having a coating of about 0.005 to 5 wt-% of an interfacial modifier, the percentage based on the composite; and (b) a polymer phase. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A particulate polymer composite comprising a non-metal, inorganic or mineral particle in a polymer phase, the composite comprising:
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(a) about 90 to 40 vol.-% of an inorganic mineral particle, having a density greater than 0.10 gm-cm−
3 and less than 5 gm-cm−
3, a particle size PS greater than 10 microns, a circularity greater than 14 and an aspect ratio less than 3; and(b) about 10 to 70 vol.-% of a polymer phase; wherein the particulate comprising a layer comprising about 0.005 to 3 wt.-% of an interfacial modifier; and
the composite density is about 0.9 to 15 gm-cm−
3.- View Dependent Claims (44, 45, 46, 47, 52, 53, 54, 55)
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48. A method of forming an inorganic and polymer composite material which comprises forming a extrudible mass comprising a polymer phase and a particle phase, the particle phase comprising a coating of an interfacial modifier in an amount of about 0.005 to 5.0 wt-% based on the composite, the particles comprising a first particle particulate having a circularity of greater than about 15 and a second substantially round particulate having a circularity of about 12.5 to 15;
- the second particulate comprising greater than 5 vol.-% of the composite wherein upon extrusion, the shear on the extrudible mass, the wear of an extruder and the extrusion pressure is reduced.
- View Dependent Claims (49, 50, 51)
Specification