Saint-gobain Performance Plastics Corporation

Paul W Ortiz

Alexander Tukachinsky

Michael L Friedman

Kevin George Hetzler

Julia DiCorleto Gibson

Boris M Friedman

Julia Dicorleto Gibson

A bushing can include a load bearing substrate having a first major surface, an adhesive film overlying the first major surface, and a friction reducing layer overlying the adhesive film. A method can include extruding an adhesive film, laminating a friction reducing layer to a load bearing substrate with the adhesive film therebetween to form a composite, and shaping the composite to form a bushing. The adhesive film can include a first adhesive layer, such as and a fluoropolymer layer. The adhesive layer can include a modified ethylene tetrafluoroethylene, and the fluoropolymer layer can include an ethylene tetrafluoroethylene.

Adhesive film for bushings

The disclosure is directed to a polymer film including a first layer and a second layer. The first layer includes a first fluoropolymer and has a melting point less than 135&#xb0; C. The second layer overlies the first layer and includes a second fluoropolymer. The second layer has a melting point greater than 135&#xb0; C.

Multi-layer polymer film

Disclosed is an intercrosslinked multilayer polymeric article having at least one thermoplastic polymer layer intercrosslinked by UV radiation at the interface with a core layer of a crosslinkable polymer. The selection of the thermoplastic polymer and the crosslinkable polymer is such that a coextruded composite product of these materials has poor interlayer adhesion prior to radiation treatment. However, the interfacial intercrosslinking provides superior bonding between the layers. The same UV radiation for intercrosslinking typically can also cure the crosslinkable polymer to give the multilayer article excellent structural integrity. Also disclosed is a method for preparing an intercrosslinked multilayer polymeric article.

Multilayer structure with intercrosslinked polymer layers

An intercrosslinked multilayer polymeric article comprises (A) at least one thermoplastic polymer layer in contact with (B) at least one crosslinkable polymer layer, wherein (A) and (B) are incompatible with each other, and wherein (A) and (B) are secured together by intercrosslinking. Also disclosed is a method for preparing an intercrosslinked polymeric article.

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Wayne, NJ, United States of America

Paul W Ortiz