Tencel Limited

Speciality Fibres and Materials Limited

Convatec Technologies, Inc.

Stephen J Law

Gregory J Askew

Heather Street

David Kershaw

Barry DeBoorder

This invention relates to absorbent materials useful in the manufacture of absorbent articles, in particular dressings for the advanced wound care market. The absorbent materials of the present invention are sulfonated polysaccharides, particularly water-insoluble cellulose alkyl sulfonates in which the cellulose is substituted by one type of alkyl sulfonate group. The invention also provides a process for the manufacture of such materials. The preferred cellulose alkyl sulfonate described herein is cellulose ethyl sulfonate. Reinforcing fibers and/or antimicrobial agents are optionally applied to the cellulose alkyl sulfonate.

Absorbent material

Cellulose ethylsulfonate-based absorbent material

The present invention relates to wound dressings, in particular to an antibacterial wound dressing based on silvered gel-forming fabric and to a process for the manufacture of such a wound dressing.

Antimicrobial wound dressing comprising gel-forming fibers and specific ratio of silver to nitrate

A method of manufacture of a nonwoven cellulose fabric is disclosed. The fabric is made from fibers formed by extrusion of a solution of cellulose through a spinning jet. The extruded fiber is attenuated with a high velocity gas flow, and the attenuated fiber is collected on a surface (such as the curved surface of a rotating drum) on which the fiber web is subsequently coagulated. Apparatus for carrying out the method is also disclosed. The method and apparatus permit the manufacture of a nonwoven lyocell fabric web in which fibers are bonded together without the use of a binder.

Method of manufacture of nonwoven fabric

A battery (,) having a battery separator (,) which is made from a cellulose film formed from a solution of cellulose in an amine oxide solvent. The separator performs well in alkaline battery cells to operationally separate the different polarity electrodes (,).

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Nuneaton, United Kingdom

Stephen J Law