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US 6,486,231 B1Granted
Co-continuous interconnecting channel morphology composition
AssigneeCSP Technologies, Inc.
InventorIhab M. Hekal
Life of this patent
Estimating the term…
Abstract
The present invention includes a composition having a co-continuous interconnecting channel morphology. These co-continuous interconnecting channels are predominately occupied with a polymer and particles that control the percolation through the composition. The particles are composed of a material such as an absorbing agent, releasing agent and/or activation agent. The polymer composition may be used to form a desired shaped article such as plug type inserts and liners for closed containers, or it may be formed into a film, sheet, bead or pellet.
Claims16
A composition having a co-continuous interconnecting channel morphology comprising at least three components,
- (a) wherein component A is selected from the group of thermoplastics that are semicrystalline polymers and amorphous polymers, wherein the amorphous polymers, have a shear modulus greater than about 8 MPa;
- (b) wherein component B is a polymer of a hydrophobic agent;
- (c) wherein components A and B are immiscible within each other and, if components A and B react after mixing, components A and B are immiscible prior to reaction;
- (d) wherein component C is a particle of a desiccating composition;
- (e) wherein the volume, fraction of component A represents at least about 50% by volume of the total volume of components A, B and C;
- (f) wherein the preferential affinity between component B and component C is greater than between component A and component C;
- (g) wherein at least two phases are formed, one phase is composed of a majority of component A, and the second phase is composed of a majority of component B and a majority of component C;
- and
- (h) wherein the two phases form the co-continuous interconnecting channel morphology.
6 more elements
A composition having a continuous interconnecting channel morphology comprising at least three components,
- (a) wherein component A is selected from the group of thermoplastics that are semicrystalline polymers and amorphous, wherein the amorphous polymers have a shear modulus greater than about 8 MPa;
- (b) wherein component B is a polymer of a hydrophobic agent;
- (c) wherein components A and B are immiscible within each other and, if components A and B react after mixing, components A and B are immiscible prior to reaction;
- (d) wherein component C is a particle of a releasing composition;
- (e) wherein the volume fraction of component A represents at least about 50% by volume of the total volume of components A, B and C;
- (f) wherein the preferential affinity between component B and component C is greater than between component A and component C;
- (g) wherein at least two phases are formed, one phase is composed of a majority of component A, and the second phase is composed of a majority of component B and a majority of component C;
- and
- (h) wherein the two phases form the co-continuous interconnecting channel morphology.
6 more elements
A composition having a continuous interconnecting channel morphology comprising at least three components,
- (a) wherein component A is selected from the group of thermosets that are semicrystalline polymers and amorphous polymers, wherein the amorphous polymers, have a shear modulus greater than about 8 MPa;
- (b) wherein component B is a polymer;
- (c) wherein components A and B are immiscible within each other and, if components A and B react after mixing, components A and B are immiscible prior to reaction;
- (d) wherein component C is a particle;
- (e) wherein the volume fraction of component A represents at least about 50% by volume of the total volume of components A, B and C;
- (f) wherein the preferential affinity between component B and component C is greater than between component A and component C;
- (g) wherein at least two phases are formed, one phase is composed of a majority of component A, and the second phase is composed of a majority of component B and a majority of component C;
- and
- (h) wherein the two phases form the co-continuous interconnecting channel morphology.
6 more elements
A composition having a co-continuous interconnecting channel morphology comprising at least three components,
- (a) wherein component A is selected from the group of thermoplastics that are semicrystalline polymers and amorphous, wherein the amorphous polymers have a shear modulus greater than about 8 MPa;
- (b) wherein component B is a polymer of a hydrophobic agent;
- (c) wherein components A and B are immiscible within each other and, if components A and B react after mixing, components A and B are immiscible prior to reaction;
- (d) wherein component C is a particle of an activation composition;
- (e) wherein the volume fraction of component A represents at least about 50% by volume of the total volume of components A, B and C;
- (f) wherein the preferential affinity between component B and component C is greater than between component A and component C;
- (g) wherein at least two phases are formed, one phase is composed of a majority of component A, and the second phase is composed of a majority of component B and a majority of component C;
- and
- (h) wherein the two phases form the co-continuous interconnecting channel morphology.
6 more elements
A composition having a co-continuous interconnecting channel morphology comprising at least three components,
- (a) wherein component A is selected from the group of thermoplastics that are semicrystalline polymers and amorphous polymers, wherein the amorphous polymers, have a shear modulus greater than about 8 MPa;
- (b) wherein component B is a polymer of a hydrophilic agent;
- (c) wherein components A and B are immiscible within each other and, if components A and B react after mixing, components A and B are immiscible prior to reaction;
- (d) wherein component C is a particle of a desiccating composition;
- (e) wherein the volume fraction of component A represents at least about 50% by volume of the total volume of components A, B and C;
- (f) wherein the preferential affinity between component B and component C is greater than between component A and component C;
- (g) wherein at least two phases are formed, one phase is composed of a majority of component A, and the second phase is composed of a majority of component B and a majority of component C;
- and
- (h) wherein the two phases form the co-continuous interconnecting channel morphology.
6 more elements
A composition having a continuous interconnecting channel morphology comprising at least three components,
- (a) wherein component A is selected from the group of polymers that are semicrystalline polymers and amorphous polymers, wherein the amorphous polymers, have a shear modulus greater than about 8 MPa;
- (b) component B and B′ are polymers;
- (c) components A, B and B′ are immiscible within each other
- (d) components C and C′ are particles;
- (e) the volume fraction of component A represents at least about 34% by volume of the total volume of components A, B, B′, C and C′;
- (f) the preferential affinity between components B and C is greater than either between components A and C and between components B′ and C;
- (g) the preferential affinity between components B′ and C′ is greater than either between components A and C′ and between components B and C′;
- (h) at least three phases are formed, one phase is composed of a majority of component A, the second phase is composed of a majority of component B and a majority of component C, and the third phase is composed of a majority of component B′ and a majority of components C′;
- and
- (i) at least tree phases form the co-continuous interconnecting channel morphology.
7 more elements
A composition having a co-continuous interconnecting channel morphology comprising at least three components,
- (a) wherein component A is selected from the group of thermoplastics that are semicrystalline polymers and amorphous polymers, wherein the amorphous polymers, have a shear modulus greater than about 8 MPa;
- (b) wherein component B is a polymer of a hydrophilic agent;
- (c) wherein components A and B are immiscible within each other and, if components A and B react after mixing, components A and B are immiscible prior to reaction;
- (d) wherein component C is a particle of a releasing composition;
- (e) wherein the volume fraction component A represents at least about 50% by volume of the total volume of components A, B and C;
- (f) wherein the preferential affinity between component B and component C is greater than between component A and component C;
- (g) wherein at least two phases are formed, one phase is composed of a majority of component A, and the second phase is composed of a majority of component B and a majority of component C;
- and
- (h) wherein the two phases form the co-continuous interconnecting channel morphology.
6 more elements
Dependencies are inferred from the claim text.