E.i. Dupont De Nemours and Company

Xun Ma

Mikhail R Levit

Larry John Prickett

Bruce A Yost

Roger Curtis Wicks

Paul Ellis Rollin, Jr

Peter J Hollberg

Brian P Little

Brian Keith Trask

Paul Ellis Rollin

David Matthews Laura

Paul Ellis Rollin Jr

Brian Paul Little

Peter John Hollberg

This invention relates to a laminate electrical insulation part for an electrical device comprising a thermoplastic film positioned between, adjacent to, and attached to two nonwoven sheets. Each of the nonwoven sheets consists of multicomponent polymeric fibers comprising at least a first polymer and a second polymer, the first polymer having a melting point that is at least 15 degrees Celsius lower than both the melting point of the second polymer and the melting point of the thermoplastic film, and the film is attached to the nonwoven sheets by the first polymer in the nonwoven sheets. The electrical insulation part has a breakdown voltage of at least 3 kilovolts, and a surface having a dynamic frictional coefficient of 0.25 or less. This invention also relates to an electrical device component comprising the laminate electrical insulation part.

Laminate electrical insulation part

This invention relates to a multicomponent fiber having an exposed outer surface, comprising at least a first component of polyarylene sulfide polymer, and at least a second component of a thermoplastic polymer free of polyarylene sulfide polymer, wherein said thermoplastic polymer forms the entire exposed surface of the multicomponent fiber.

Multicomponent fiber with polyarylene sulfide component

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Midlothian, VA, United States of America

Xun Ma