Co-continuous interconnecting channel morphology composition

• US 20040122175A1
• Filed: 11/26/2003
• Published: 06/24/2004
• Est. Priority Date: 03/05/1996
• Status: Active Grant

• Current Assignee: CSP Technologies North America LLC (AptarGroup Incorporated)
• Original Assignee: Ihab M. Hekal
• Inventors: Hekal, Ihab M.
• Granted Patent: US 7,005,459 B2
• Time in Patent Office: Days
• US Class Current: 525/191
• CPC Class Codes: B01J 20/28014 characterised by their form
• CPC Class Codes: B01J 20/28033 Membrane, sheet, cloth, pad, lamellar or mat
• CPC Class Codes: B01J 20/28042 Shaped bodies; Monolithic structures
• CPC Class Codes: B01J 20/28097 being coated, filled or plugged with specific compounds
• CPC Class Codes: B29C 45/16 Making multilayered or multicoloured articles B29C45/0062 takes precedence; feeding colouring materials into the injection unit B29C45/1816
• CPC Class Codes: B65D 81/264 for absorbing liquids
• CPC Class Codes: B65D 81/266 for absorbing gases, e.g. oxygen absorbers or desiccants B65D51/244, B65D51/30 take precedence
• CPC Class Codes: C08J 9/26 by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
• CPC Class Codes: C08L 101/00 Compositions of unspecified macromolecular compounds
• CPC Class Codes: C08L 2203/16 used for films
• CPC Class Codes: C08L 23/02 not modified by chemical after-treatment
• CPC Class Codes: C08L 23/0861 Saponified vinylacetate
• CPC Class Codes: C08L 23/10 Homopolymers or copolymers of propene
• CPC Class Codes: C08L 2666/02 Organic macromolecular compounds, natural resins, waxes or and bituminous materials
• CPC Class Codes: C08L 2666/04 Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
• CPC Class Codes: C08L 2666/14 Macromolecular compounds according to C08L59/00 - C08L87/00; Derivatives thereof
• CPC Class Codes: C08L 2666/22 Macromolecular compounds not provided for in C08L2666/16 - C08L2666/20
• CPC Class Codes: C08L 29/00 Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 29/04 Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
• CPC Class Codes: C08L 69/00 Compositions of polycarbonates; Compositions of derivatives of polycarbonates
• CPC Class Codes: C08L 71/00 : Compositions of polyethers obtained by reactions forming an ether link in the main chain of polyacetals C08L59/00; of epoxy resins C08L63/00; of polythioether-ethers C08L81/02; of polyether-sulfones C08L81/06; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 71/02 : Polyalkylene oxides
• CPC Class Codes: C08L 77/00 : Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain of polyhydrazides C08L79/06; of polyamideimides or polyamide acids C08L79/08; Compositions of derivatives of such polymers
• CPC Class Codes: F26B 21/083 : by using sorbent or hygroscopic materials, e.g. chemical substances, molecular sieves
• CPC Class Codes: Y10S 521/905 : Hydrophilic or hydrophobic cellular product

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.

Claims

1. A composition having a co-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) 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. The composition of claim 1, wherein component A is selected from the group consisting of polyolefins, polycarbonates and polyamides.

7. The composition of claim 1, wherein component B is selected from the group consisting of polyglycols, poly(ethylene vinyl alcohols), and polyvinyl alcohol.

8. The composition of claim 1, wherein the composition is in the form, of a shaped article and the shaped article is selected from the group consisting of sheets, films, pellets and beads.

9. The composition of claim 1, wherein component A is selected from the group consisting of polyolefins, polycarbonates and polyamides, and component B is selected from the group consisting of polyglycols.

2. 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;

(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.

3. A composition having a co-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 Ma;

(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.

4. 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;

(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.

5. A composition having a co-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 Ma;

(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.

10. A composition having co-continuous interconnecting channel morphology comprising at least five 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 components B′ and

a majority of components C′

; and

(i) at least three phases form the co-continuous interconnecting channel morphology.