E.i. Dupont De Nemours and Company

E. I. Du Pont Nemours and Co.

David William Litchfield

Mark Allan Lamontia

Carlo Fiorella

Caio P Faury

A knit fabric suitable as a reinforcement for elastomeric articles comprises a plurality of reinforcement yarns wherein each course of the fabric comprises either a first or second yarn, the modulus of the first yarn being different from the modulus of the second yarn, and the courses comprising the first and second yarns are arranged in one of the following sequences, (a) alternating courses comprise first and second yarns respectively, (b) the courses form a repeat pattern of, in order, a course comprising a first yarn, two courses comprising a second yarn and a course comprising a first yarn or (c) the courses form a repeat pattern of, in order, a course comprising a second yarn, two courses comprising a first yarn and a course comprising a second yarn.

Knit fabric and an article comprising same

This invention pertains to an umbilical hose comprising in order a thermoplastic inner liner, at least one fibrous reinforcement layer having a layer thickness no greater than 1.5 mm, comprising continuous filament yarns having a yarn tenacity of at least 13 g/dtex and a linear density no greater than 6667 dtex, and a thermoplastic outer cover.

Multilayer reinforced hose

A multilayer hose comprising in order, (i) a thermoplastic inner liner, (ii) at least one first fibrous reinforcement layer comprising continuous filament yarns having a yarn tenacity of at least 13 grams per dtex, (iii) at least one second fibrous reinforcement layer comprising continuous filament yarns having a yarn tenacity of at least 13 grams per dtex, and (iv) a thermoplastic outer cover wherein the continuous filament yarns of the at least one second fibrous reinforcement layer have a yarn modulus greater than the yarn modulus of the continuous filament yarns of the at least one first fibrous reinforcement.

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Midlothian, VA, United States of America

David William Litchfield