The Procter Gamble Company

Kelvin Lenses Limited

First Water Limited

Brian John Tighe

Hugh Semple Munro

Fabio Cinelli

Adelia Alessandra Tordone

Antonello Colaianni

Howard J Gee

A bioadhesive composition formed by polymerizing a homogeneous aqueous reaction mixture comprising from about 5% to about 50%, by weight of the reaction mixture, of at least one ionic water soluble monomer, from about 10% to about 50%, by weight of the reaction mixture, of at least one plasticizer (other than water), up to about 50%, by weight of the reaction mixture, of at least one non ionic water soluble monomer, up to about 40%, by weight of the reaction mixture, of water, optionally as well as up to about 10%, by weight of the reaction mixture, of at least one surfactant and from about 1% to about 30%, by weight of the reaction mixture, of at least one hydrophobic monomer and/or polymer. An electrolyte may be present, to enhance electrical conductivity, e.g. for use in biomedical electrodes.

Bioadhesive compositions

The present invention relates to a disposable human waste management devices such as faecal and urine management devices () which are provided with adhesives for attachment of the device to the skin. In particular the present invention relates to adhesives () that provide secure attachment and are pleasing to the skin upon application, yet cause no discomfort upon removal. In particular the present invention relates to skin attachment means which provide secure attachment under moist and wet skin conditions and which maintains adhesive peel strength even under exposure to excess water.

Disposable human waste management devices with improved adhesive flange attachment means to facilitate water adhesion stability with low pain level removal

The present invention relates to a disposable absorbent articles such as diapers and sanitary napkins which are provided with adhesives for attachment of the article to the skin. In particular the present invention relates to adhesives which provide secure attachment and are pleasing to the skin upon application, yet cause no discomfort upon removal. In particular the present invention relates to an adhesive which provide secure attachment under moist and wet skin conditions and which maintains adhesive peel strength even under exposure to excess water.

Disposable absorbent articles with improved adhesive for attachment to the skin to facilitate water adhesion stability with low pain level removal

The present invention relates to a disposable human waste management devices such as fecal and urine management devices ( ) which are provided with adhesives for attachment of the device to the skin. In particular the present invention relates to adhesives ( ) which provide secure attachment and are pleasing to the skin upon application, yet cause no discomfort upon removal. In particular the present invention relates to adhesives which provide secure attachment to oily and greasy skins. Preferably the adhesive also provides secure attachment under moist and wet skin conditions and which maintains adhesive peel strength even under exposure to excess water.

Disposable human waste management devices with improved adhesive flange to facilitate adhesion in oily conditions

The present invention relates to a disposable absorbent articles such as diapers and sanitary napkins which are provided with adhesives for attachment of the article to the skin. In particular the present invention relates to adhesives which provide secure attachment and are pleasing to the skin upon application, yet cause no discomfort upon removal. In particular the present invention relates to an adhesive which provide secure attachment to oily and greasy skin. Preferably the adhesive also provides secure attachment under moist and wet skin conditions and which maintains adhesive peel strength even under exposure to excess water.

Disposable absorbent articles with improved adhesive for attachment to the skin to facilitate adhesion in oily conditions

Polymeric materials suitable for bio-medical applications, particularly in making contact lenses, are derived by reaction of the following:

Fluorine-containing hydrogel-forming polymeric materials

Polymeric materials suitable for biomedical applications, particularly in making contact lenses, are formed by copolymerization and crosslinking of: (1) an amide of an unsaturated carboxylic acid such as acrylamide or methacrylamide; (2) an N-vinyl lactam such as N-vinyl pyrrolidone; (3) an ester of an unsaturated carboxylic acid such as a hydroxy-substituted ester of acrylic or methacrylic acid; (4) an unsaturated carboxylic acid such as acrylic or methacrylic acid; and (5) a hydrophobic monomer component comprising: (a) a fluorine-containing polymerizable monomer having a fluoroaliphatic side chain, such as fluoroalkyl acrylate or methacrylate, and (b) a non-fluorine-containing polymerizable hydrophobic vinyl monomer such as styrene; crosslinking with a crosslinking agent either being carried out during copolymerization or subsequently. The resulting polymeric materials may be machined to produce a contact lens form and then hydrated to form a hydrogel which is suitable for use as an extended wear contact lens.

Polymeric materials suitable for bio-medical applications, particularly in making contact lenses, are formed by copolymerization and crosslinking of: (1) an amide of an unsaturated carboxylic acid such as acrylamide or methacrylamide; (2) an N-vinyl lactam, such as N-vinyl pyrrolidone; (3) an ester of an unsaturated carboxylic acid, such as a hydroxy-substituted ester of acrylic or methacrylic acid; (4) an unsaturated carboxylic acid, such as acrylic or methacrylic acid; and (5) a polymerizable hydrophobic vinyl monomer, such as styrene; crosslinking with a crosslinking agent either being carried out during copolymerization or subsequently. The resulting polymeric materials may be machined to produce a contact lens form and then hydrated to form a hydrogel which is suitable for use as an extended wear contact lens.

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Birmingham, United Kingdom

Brian John Tighe