Hoechst Celanese Corporation

Inmat, Inc.

Celanese Gmbh

Other

Michelin Recherche Et Technique S.a.

Im Mat Inc.

Becton Dickinson and Company Limited

Harris A Goldberg

Carrie A Feeney

Michele Farrell

Douglas P Karim

Ilmar L Kalnin

Clyde C Williams

Keisha R Oree

James E Kuder

Rachel S Kohn

David E Nikles

Palaiyur S Kalyanaraman

Michael D Grah

Frank J Onorato

George J Breckenridge

William G Steiner

Mengshi Lu

Paul B Winston

Laxmi Samantara

Ronald G Reifenberger

Klaus Tannert

James L McGinnis

Anthony J East

Michael J Sansone

Paul N Chen, Sr

Tessie M Che

Joseph J DiBiase

Paul R Soskey

Y M Marikar

Lak M Walpita

Joseph M Pickton

Ching F Shu

Karsten Blatter

Christopher Zipp

Ian L Spain

Timothy R Hart

Spain, Ian L

Jerome F Parmer, Jr

Susan C Castles

William T Ryans

Jerome F Parmer

An evacuated container assembly suitable for use in connection with blood collection including: (a) a container member formed of a first polymeric material and having a sidewall and one or more openings; (b) a nanocomposite barrier coating disposed on the container member having a thickness of up to about 30 microns and being derived from an aqueous dispersion including (i) a dispersed barrier matrix polymer; and (ii) a substantially exfoliated silicate filler having an aspect ratio of more than 50; and (c) one or more sealing members disposed in the opening(s) operative to hermetically seal the cavity; wherein the cavity is evacuated and maintains a pressure below atmospheric pressure and exhibits a draw volume loss lower than that of a like assembly without a nanocomposite barrier film by a factor of at least 1.5.

Collection container assembly with nanocomposite barrier coating

A gas barrier film includes an anionically functionalized matrix resin and a platy mineral filler. The formed film is surface-treated with a multi-valent metal cation crosslinking agent to stabilize the barrier film against performance loss at elevated levels of relative humidity.

Barrier coatings post-formation treated with multi-valent metal cations

The invention relates in one aspect to a post-formulation concentrated nanocomposite dispersion containing an invisible marker dye. The dispersion typically includes a silicate filler and a matrix polymer dispersed in an aqueous medium as well. The dispersions form optically transparent barrier films wherein the dye is effective to indicate film thickness on a substrate. Specific embodiments of this invention include a nanocomposite coating formulation designed to provide transparent high barrier coatings at thicknesses from 1 to 10 microns that include a near infrared (NIR) or infrared (IR) dye that enables rapid measurement of coating thickness and uniformity. The preferred dye imparts no observable color or appearance change, and thus can also function as an identifier for the coating.

Aqueous nanocomposite dispersions containing invisible marker dye for transparent barrier coatings and preparations and use thereof

Films or other articles having a barrier coating derived from a concentrated nanocomposite dispersion which includes a silicate filler and a matrix polymer dispersed in an aqueous medium. The dispersions are condensed by selectively removing liquid therefrom to provide high solids coating formulations.

Films and articles having a barrier coating derived from concentrated aqueous nanocomposite dispersions

A multilayer barrier structure includes a plurality of relatively thin nanocomposite layers separated by one or more relatively thick intermediate layers selected from synthetic elastomers or non-elastomeric polymers. The composites exhibit remarkably long breakthrough and lag-times and are useful for packaging or protective apparel.

Multilayer nanocomposite barrier structures

A concentrated nanocomposite dispersion which includes a silicate filler and a matrix polymer dispersed in an aqueous medium. The dispersions are condensed by selectively removing liquid therefrom, to provide high solids coating formulations. The concentrated formulations provide coatings which are good barriers to oxygen and other gases.

Concentrated aqueous nanocomposite dispersions for barrier coatings

Barrier coating mixtures contain in a carrier liquid, (a) a non-elastomeric polymer; (b) an exfoliated layered platelet-like silicate filler which may or may not have been acid or base treated that has not been functionalized with organic cations having an aspect ratio greater than 25; and (c) at least one additive, wherein the total solids content is less than 30% and the amount of filler is between 5% to about 60% of the total solids content. Coated articles and containers, freestanding films and packaging films are produced using the barrier coating mixtures. Methods of manufacturing such coated products are also encompassed.

Barrier coating of a non-elastomeric polymer and a dispersed layered filler in a liquid carrier and coated articles

Barrier coating mixtures contain in a carrier liquid, (a) a non-elastomeric substantially polymerized acrylic polymer; (b) an exfoliated layered platelet-like silicate filler which has been acid treated and having an aspect ratio greater than 25; and (c) at least one additive, wherein the total solids content is less than 30% and the amount of filler is between 5% to about 60% of the total solids content. Coated articles and containers, freestanding films and packaging films are produced using the barrier coating mixtures. Methods of manufacturing such coated products and coating mixtures are also encompassed.

Barrier coating mixtures containing non-elastomeric acrylic polymer with silicate filler and coated articles

Barrier coating mixtures include (a) a mixture of pre-vulcanized and non-vulcanized elastomeric polymers; (b) an acid or base treated dispersed, substantially exfoliated silicate filler material that has not been functionalized with organic cations having an aspect ratio greater than 25; and (c) at least one additive, wherein the total solids content is less than 30% and the amount of filler is between 5% to about 60% of the total solids content. The coating retains its permeability properties under strain and has a strain to first damage of at least 10% biaxial elongation at 0% RH. Coated articles, free standing films and membranes, which are flexible and elastomeric, are produced using the barrier coating mixtures. Methods of manufacturing of such coated products are also encompassed.

Barrier coating of a mixture of cured and uncured elastomeric polymers and a dispersed layered filler in a liquid carrier and coated articles

Barrier coating mixtures include (a) a non-butyl elastomeric polymer; (b) an acid or base treated dispersed, substantially exfoliated silicate filler material that has not been functionalized with organic cations having an aspect ratio greater than 25; and (c) at least one additive, wherein the total solids content is less than 30% and the amount of filler is between 5% to about 60% of the total solids content. The coating retains its permeability properties under strain and has a strain to first damage of at least 5% biaxial elongation at 0% RH.

Barrier coating of a non-butyl elastomer and a dispersed layered filler in a liquid carrier and coated articles

Applications of barrier coating mixtures containing in a carrier liquid, (a) an elastomeric (preferably butyl-containing) polymer; (b) a dispersed exfoliated layered filler having an aspect ratio greater than 25; and (c) at least one surfactant, wherein the solids content of the mixture is less than 30% and the ratio of polymer (a) to filler (b) is between 20:1 and 1:1 include coated articles, which are elastomeric, e.g., sports balls and inflatable articles. Methods of manufacturing such coated products are also encompassed.

Barrier coating of an elastomer and a dispersed layered filler in a liquid carrier and coated articles

Barrier coating mixtures contain in a carrier liquid, (a) an elastomeric (preferably butyl-containing) polymer; (b) a dispersed exfoliated layered filler having an aspect ratio greater than 25; and (c) at least one surfactant, wherein the solids content of the mixture is less than 30% and the ratio of polymer (a) to filler (b) is between 20:1 and 1:1. Coated articles, which are rigid or flexible and elastomeric, and free-standing films and membranes, which are flexible and elastomeric, are produced using the barrier coating mixtures.

Barrier coating of an elastomer and a dispersed layered filler in a

A polymeric composition having a high dielectric constant which varies little with temperature is made from a thermoplastic polymer, a high dielectric ceramic having a dielectric constant of at least about 50 at 1.0 Ghz and 20.degree. C., and a second ceramic material having a dielectric constant of at least about 5.0 at 1.0 GHz and 20.degree. C., where the high dielectric ceramic and the second ceramic material have temperature coefficients that are opposite in sign from one another.

Polymeric compositions having a temperature-stable dielectric constant

Vibration damping composites suitable for use in construction panels or constrained-layer elements are described. The composites include a viscoelastic gel prepared from 99.5-92.5 wt. % water and 0.5-7.5 wt. % of a superabsorbent polymer. Preferably, the polymer is of the carboxylic acid type and optionally includes starch or cellulose.

Vibration damping superabsorbent composites

This invention provides novel polymers which contain discrete photoconductive and electrooptic moieties. The moieties may exist as part of the main chain of the polymer or as pendant side chains. The polymers have utility as transparent photorefractive media in photorefractive devices. An invention polymer where both the photoconductive and electrooptic moieties exist as pendant side chains is illustrated by the copolymer of the following structure: ##STR1##

Photorefractive polymers containing discrete photoconductive and

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Edison, NJ, United States of America

Harris A Goldberg