Hydrogels containing substances

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6723781
SERIAL NO

09650926

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A blend of one or more crosslinked polymers or copolymers prepared from an olefinically unsaturated polymerizable carboxylic or anhydride monomer and at least one high molecular weight essentially linear polymer prepared from an olefinically unsaturated polymerizable carboxylic acid monomer. The blend is neutralized to typically a low pH, and generally contains a noncovalent, e.g. ionic, crosslinking agent, and a cure rate modifier. The hydrogel blend is capable of containing a large amount of water, has good tack, good adhesion, and can be utilized as an application vehicle having a backing thereon as well as containing various substances such as personal care compounds, pharmaceuticals, active ingredients, and the like. Conversely, the hydrogel blend can be dried and subsequently wetted without substantial loss of properties.

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Patent Owner(s)

Patent OwnerAddress
NOVEON INC9911 BRECKSVILLE ROAD CLEVELAND OH 44141-3247

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Frate, Dean M Cleveland, OH 5 183
Guo, Jian-Hwa Hudson, OH 17 1024

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  • 61 Citation Count
  • C08L Class
  • 98.82 % this patent is cited more than
  • 21 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges496162086834227421501 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 90100 +050100150200250300350400450500550600650

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