Teknor Apex Company

Raman Patel

John C Andries

Biing-Lin Lee

Keith G Saunders

Maryellen Cox

Tonya M McBride

Jushik Yun

Darnell C Worley, Ii

Patrick Tiberio

Harry R Howard

John J Wood, Iii

Elliot ByungHwa Lee

Dan Mallin

Marc Caruthers

James L White

Dexi Weng

Wayne Thornton

Maryellen Cobb

Cheol-Ho Choi

Compositions including a thermoplastic elastomer or thermoplastic vulcanizate derived from a styrenic block copolymer having a reactive or crosslinkable hard block including aromatic vinyl repeat units and also preferably a crosslinkable soft block, and a non-olefin thermoplastic polymer or copolymer and preferably a compatibilizer such as the reaction product of a non-olefin thermoplastic polymer and a functionalized polymer such as a maleic anhydride functionalized styrenic block copolymer that is compatible with the styrenic block copolymer having a reactive or crosslinkable hard block, and optionally a linking compound. The vulcanizates are prepared by crosslinking the styrenic block copolymer in the presence of the non-olefin thermoplastic polymer and a suitable crosslinking agent, and optionally the compatibilizer, preferably utilizing dynamic vulcanization. In a further embodiment, thermoplastic vulcanizate compositions are provided including the styrenic block copolymer, a polyolefin polymer or copolymer, a non-olefin thermoplastic polymer and the compatibilizer.

Elastomer and vulcanizate compositions having desirable high temperature properties

Toughened thermoplastic compositions comprising a thermoplastic polymer toughened by the inclusion of a thermoplastic elastomer derived from a particulate rubber dynamically vulcanized in the presence of a matrix polymer. The toughened thermoplastic composition exhibits properties including toughness, improved impact resistance, and improved hardness. The compositions are utilized wherever toughened, high performance polymers are desired. A method for forming the toughened polymer compositions is also described. Processing methods, such as rotational molding, utilizing the toughened polymer compositions are described.

Toughened polymer compositions

A compatibilizer including a first portion compatible with a fluoropolymer and a second portion compatible with a polyolefin. Compatibilized compositions comprising a polyolefin, a fluoropolymer, and a compatibilizer are also disclosed. Methods for forming both the compatibilizer and the blends contained in the compatibilizer are described. The compatibilized compositions of the present invention exhibit desired mechanical properties such as tensile strength and elongation. The flame retarded compatibilized blends exhibit desirable dielectric properties, are flame resistant and exhibit low smoke emission.

Compatibilizers for fluoropolymers and polyolefins; blends thereof

The invention is based on the discovery of useful combinations of fully cross-linked thermoplastic vulcanizates with styrenic block copolymers. The new combinations of the invention can provide a synergistic effect. Specifically, the compositions formed thereby can be both softer and more elastic than would be expected on the basis of the properties of the individual components. Such compositions can be used in numerous applications, including, for example, any application for which a soft material with very good recovery is desired.

Polymer compositions

The use of polytetrafluoroethylene micropowders having a particle size of generally less than about 20 microns as an additive for polyvinyl chloride or polyolefin unexpectedly produces compositions which are melt processable. Other unexpected properties include that the micropowder is deformable under shear and acts as a flame retardant.

Polyvinyl chloride or polyolefin melt processable compositions containing polytetrafluoroethylene micropowder

A melt-mixed blend of plasticized PVC, fluoropolymers, and a compatibilizer having acrylate functionality exhibits good mechanical and dielectric properties and is useful for wiring and cable applications.

Blends of fluoropolymer and plasticized polyvinyl chloride

Polymer compositions including an olefinic polymer, a polar polymer and a compatibilizer are disclosed. The compatibilizer can be a block or graft copolymer including polymer portions that are compatible with the olefinic polymer and polymer portions that are compatible with the polar polymer.

Polymer compositions including an olefinic polymer, a polar polymer and a compatibilizer are disclosed. The compatilizer can be a block or graft copolymer including polymer portions that are compatible with the olefinic polymer and polymer portions that are compatible with the polar polymer.

Growing community of inventors

Cumberland, RI, United States of America

Raman Patel