Polyone Corporation

Amcol International Corporation

Guoqiang Qian

David A Jarus

Krishna Venkataswamy

Tie Lan

Anthony S Tomlin

Aaron M Fay

Roger W Avakian

Liang Xu

Malar Shetty

Vincent Zabrocki

Jae Whan Cho

A thermoplastic elastomer compound is blended from styrenic block copolymer, thermoplastic vulcanizate, thermoplastic polyurethane, a compatibilizer, and a masterbatch containing silicone, which is added to provide a qualitative silky feel on surfaces of plastic articles made from the compound.

Thermoplastic elastomers with silky feel

A thermoplastic elastomer compound is disclosed having copolyester elastomer, epoxidized soybean oil, and vulcanized vegetable oil. The compound has a biorenewable content of at least about 50 weight percent of the compound. The compound can be used to make a plastic article needing a Shore A hardness of from about 40 to about 70. The compound is a sustainable solution for extruded or molded articles.

Biorenewable copolyester thermoplastic elastomers

A blend of styrene-isobutylene-styrene based thermoplastic elastomer and organoclay-filled polyamide is disclosed which has good processability and more effective barrier properties for oxygen than the blend using amorphous or crystalline polyamide without organoclay.

Thermoplastic elastomers exhibiting superior barrier properties

A thermoplastic elastomer compound is disclosed having polyether-polyamide copolymer, epoxidized soybean oil, and vulcanized vegetable oil. The compound has a biorenewable content of the compound of at least about 70 weight percent. The compound can be used to make a plastic article needing a Shore A hardness of from about 22 to about 72. The compound is a sustainable solution for extruded or molded articles.

Biorenewable thermoplastic elastomers

A method is disclosed concerning discovering how the use of an additive in a polyolefin compound affects the weatherability of that compound, Applying that technique, a weatherable polyolefin nanocomposite is disclosed, which contains UV stabilizers that filter wavelengths in a range influenced by presence of organoclay in the nanocomposite.

Weatherable polyolefin nanocomposites

A method is disclosed concerning discovering how the use of an additive in a polyolefin compound affects the weatherability of that compound. Applying that technique, a weatherable polyolefin nanocomposite is disclosed, which contains UV stabilizers that filter wavelengths in a range influenced by presence of organoclay in the nanocomposite.

A heat stabilized polyolefin nanocomposite is disclosed, which contains metal scavengers to heat stabilize the nanocomposite.

Stabilized polyolefin nanocomposites

nuc-PP nanocomposite is made from the mixing of nuc-PP with olefin elastomer and organoclay, and optionally, a dispersion agent. Unexpectedly, processing properties such as higher melt flow, and performance properties such as higher toughness and higher stiffness, are obtained when compared with commercially available PP nanocomposite.

Nucleated polypropylene nanocomposites

HDPE nanocomposite is made by mixing HDPE with organoclay. Such HDPE nanocomposite contains concentrations of organoclay less than 4 weight percent. Unexpectedly, using less organoclay than that conventionally recommended, results in superior oxygen and water vapor transmission rates for HDPE compounds. The HDPE nanocomposite is useful for packaging films and containers for food or other perishables.

Use of organoclay in HDPE nanocomposites to provide barrier properties in containers and film

A nanocomposite concentrate composition comprising about 10 weight percent to about 90 weight percent of a layered silicate material and about 10 weight percent to about 90 weight percent of a matrix polymer comprising about 90-99.8% by weight of a polyolefin and about 0.2% to about 10%, preferably about 0.2% to about 3%, more preferably about 1% to 3% by weight, of a maleic anhydride-modified polyolefin, based on the total weight of polyolefins, wherein the layered silicate material is dispersed uniformly throughout the matrix polymer. Shearing of the concentrate and later (after shear) addition of an added matrix polymer avoids thermal degradation of the added matrix polymer and optimizes the dispersion of the nanomer throughout the matrix polymer; provides increased tensile strength; and reduces degradation of the polymer by melt formation of a concentrate thereby decreasing heat degradation of added matrix polymer.

Intercalates formed with polypropylene/maleic anhydride-modified polypropylene intercalants

A nanocomposite concentrate composition comprising about 10 weight percent to about 90 weight percent of a layered silicate material and about 10 weight percent to about 90 weight percent of a matrix polymer comprising about 90-99.5% by weight of a polyolefin and about 0.5% to about 10%, preferably about 1% to about 6% by weight, of a maleic anhydride-modified polyolefin, based on the total weight of polyolefins, wherein the layered silicate material is dispersed uniformly throughout the matrix polymer. Shearing of the concentrate and later (after shear) addition of an added matrix polymer avoids thermal degradation of the added matrix polymer and optimizes the dispersion of the nanomer throughout the matrix polymer; provides increased tensile strength; and reduces degradation of the polymer by melt formation of a concentrate thereby decreasing heat degradation of added matrix polymer.

Intercalated layered materials prepared by reacting the layered material with a coupling agent and co-intercalating an onium ion and an 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 onium ion spacing/compatibilizing agent. The intercalation of the oligomer or polymer then increases the spacing of adjacent layers an additional at least 3 &angst;, e.g., to at least about 20 &angst;, preferably about 25 &angst; to about 30 &angst;, generally about 28 &angst;, and provides a nanocomposite having increased tensile strength, flexibility, and ductility (less brittle).

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Buffalo Grove, IL, United States of America

Guoqiang Qian