Amcol International Corporation

University of South Carolina

Eastman Chemical Company

Vasiliki Psihogios

Tie Lan

John Walker Gilmer

Shriram Bagrodia

James Christopher Matayabas, Jr

Sam Richard Turner

Gary Wayne Connell

Louis Thomas Germinario

Robert Boyd Barbee

Jeffrey Todd Owens

Ying Liang

Linda Gail Bernard

Erin K Westphal

Gary W Beall

Semeon J Tsipursky

Anthony S Tomlin

Emerson Eston Sharpe, Jr

Vladimir Dolinko

The invetion is directed to a polymer-clay nanocomposite material comprising a melt-processible matrix oplymer and a layered clay material having decreased levels of extractable material, such as extractible salts of organic cations. This invention is also derected to processes for preparing polymer-clay nanocomposites, intercalates, exfoliates, and articles or products produced from nanocomposite materials.

Intercalates and exfoliates thereof having an improved level of extractable material

The invention is directed to a polymer-clay nanocomposite material comprising a melt-processible matrix polymer and a layered clay material having low quartz content. This invention is also directed to a process for preparing polymer-clay nanocomposites, and articles or products produced from nanocomposite materials.

Polymer nanocomposite comprising a matrix polymer and a layered clay material having a low quartz content

This invention relates to a polymer-clay nanocomposite comprising (i) a melt-processible matrix polymer, and incorporated therein (ii) a mixture of at least two layered clay materials. The invention also relates to articles produced from a nanocomposite and a process for preparing a nanocomposite.

Polymer/clay nanocomposite comprising a clay mixture and a process for making same

The invention is directed to a polymer-clay nanocomposite material comprising a melt-processible matrix polymer and a layered clay material having low quartz content. This invention is also directed to a process for preparing a polymer-clay nanocomposites, and articles or products produced from nanocomposite materials.

Layered clay intercalates and exfoliates having a low quartz content

The invention is directed to a polymer-clay nanocomposite material comprising a melt-processible matrix polymer and a layered clay material having decreased levels of extractable material, such as extractable salts of organic cations. This invention is also directed to processes for preparing polymer-clay nanocomposites, and articles or products produced from nanocomposite materials.

Polymer nanocomposite comprising a matrix polymer and a layered clay material having an improved level of extractable material

This invention is directed to a polymer-clay nanocomposite, products produced from the nanocomposite, and a process for preparing a polymer-clay nanocomposite. The polymer-clay nanocomposite comprises (a) a matrix polymer, (b) an amorphous oligomer, and (c) a layered clay material.

Polymer-clay nanocomposite comprising an amorphous oligomer

Process for preparing a high barrier amorphous polyamide-clay nanocomposite

This invention relates to a composite composition comprising one or more polyamide polymers or copolymers, one or more layered clay materials, and one or more alkoxylated ammonium cations. The invention also relates to a process for preparing a nanocomposite and articles produced from the nanocomposite, including bottles.

Polyamide composition comprising a layered clay material modified with an alkoxylated onium compound

This invention is directed to a polyamide-clay nanocomposite, products produced from the nanocomposite, and a process for preparing a polyamide-clay nanocomposite. The polyamide-clay nanocomposite comprises (a) an amorphous matrix polyamide comprising (i) a residue of a dicarboxylic acid component comprising at least two diacids and (ii) a residue of a diamine component, and (b) a layered clay material, wherein the layered clay material is dispersed in the matrix polyamide.

High barrier amorphous polyamide-clay nanocomposite and a process for preparing same

Intercalated layered materials prepared by co-intercalation of a multi-charged onium ion spacing/coupling agent and a matrix polymer between the planar layers of a swellable layered material, such as a phyllosilicate, preferably a smectite clay. The spacing of adjacent layers of the layered materials is expanded at least about 3 &angst;, preferably at least about 5 &angst;, usually to about 15-20 &angst;, e.g., 18 &angst; with the di-charged onium ion spacing/coupling agent. The intercalation of the matrix polymer then increases the spacing between adjacent layers to at least about 15 &angst;, preferably to about 20 &angst; to about 30 &angst;.

LAYERED COMPOSITIONS WITH MULTI-CHARGED ONIUM IONS AS EXCHANGE CATIONS, AND THEIR APPLICATION TO PREPARE MONOMER, OLIGOMER, AND POLYMER INTERCALATES AND NANOCOMPOSITES PREPARED WITH THE LAYERED COMPOSITIONS OF THE INTERCALATES

This invention relates to a polymer-clay intercalates, exfoliates, nanocomposites and methods of manufacturing comprising (i) a melt-processible matrix polymer, and incorporated therein (ii) a mixture of at least two layered clay materials. The invention also relates to articles produced from a nanocomposite and a process for preparing a nanocomposite.

Polymer/clay intercalates, exfoliates, and nanocomposites comprising a clay mixture and a process for making same

High barrier amorphous polyamide-clay intercalates, exfoliates, and nanocomposite and a process for preparing same

Layered compositions with multi-charged onium ions as exchange cations, and their application to prepare monomer, oligomer, and polymer intercalates and nanocomposites prepared with the layered compositions of the intercalates

Nanocomposite layered materials prepared by co-intercalation of an onium ion, preferably an alkoxylated onium ion and an ethylene vinyl alcohol oligomer or polymer between the planar layers of a swellable layered material, such as a phyllosilicate, preferably a smectite clay. The spacing of adjacent layers of the layered materials is expanded at least about 3 &angst;, preferably at least about 5 &angst;, usually preferably to a d-spacing of about 15-20 &angst;, e.g., 18 &angst; with the alkoxylated onium ion spacing/coupling agent. The intercalation of the ethylene vinyl alcohol polymer then increases the spacing of adjacent layers an additional at least 2 &angst;, e.g., to at least about 20 &angst;, preferably about 25 &angst; to about 30 &angst;, generally about 28 &angst;. Improved O,barrier properties are observed over a broad range of humidity conditions when intercalation is accomplished by both the solvent route and the direct compounding route. The intercalated and exfoliated layered materials are useful for barrier layers in multi-layer packaging and for coatings.

Intercalates formed by co-intercalation of onium ion spacing/coupling agents and monomer, oligomer or polymer ethylene vinyl alcohol (EVOH) intercalants and nanocomposites prepared with the intercalates

Intercalates formed by contacting the layer material, e.g., a phyllosilicate, with an intercalant to sorb or intercalate the between adjacent platelets of the layered material. Sufficient intercalant polymer is sorbed between adjacent platelets to expand the adjacent platelets at least about 5 .ANG. (as measured after water removal to 5% by weight water), up to about 100 .ANG. and preferably in the range of about 10-45 .ANG., so that the intercalate easily can be exfoliated into individual platelets. A monovalent, divalent and/or trivalent cation is added to the intercalating composition, or after intercalation for surprising increases in viscosity. The intercalated complex is combined with an organic liquid into an unexpectedly viscous carrier material, for delivery of the carrier material, or for delivery of an active compound, e.g., a pharmaceutical, or cosmetic, or lubricant, e.g., food grade lubricants dissolved or dispersed in the carrier material. Alternatively, the intercalated complex can be exfoliated prior to combination with the organic liquid.

Growing community of inventors

Palatine, IL, United States of America

Vasiliki Psihogios