Membrane-forming polymer systems

Details Membrane-forming polymer systems Membrane-forming polymer systems

A - Human Necessities

01

C

400/1301, 117/17

A01C 1/06 (2006.01) A01N 25/10 (2006.01) A61K 9/20 (2006.01) A61L 9/04 (2006.01) A61L 15/22 (2006.01) A61L 15/44 (2006.01) B32B 27/30 (2006.01) C08K 5/00 (2006.01) C08L 33/02 (2006.01) C08L 35/00 (2006.01) C08L 71/02 (2006.01)

Patent

CA 1233593

Membrane-forming polymer Systems Abstract of the Disclosure Membrane-forming polymeric systems, which comprise the molecular association product of a polymeric carboxylic acid having at least 10% of the monomer units containing free carboxylic groups with an ethoxylated nonionic surfactant, allow the release of volatile and water-soluble active agents at a controlled, uniform rate and over a prolonged period of time into the environment of use.

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