Anionic polymers composed of dicarboxylic acids and uses...

Details Anionic polymers composed of dicarboxylic acids and uses... Anionic polymers composed of dicarboxylic acids and uses...

C - Chemistry, Metallurgy

08

F

C08F 222/06 (2006.01) A01C 1/06 (2006.01) C05G 3/10 (2006.01) C08F 222/02 (2006.01) C08F 222/04 (2006.01)

Patent

CA 2443486

Biodegradable anionic polymers are disclosed which include recurring polymeric subunits preferably made up of dicarboxylic monomers such as maleic anhydride, itaconic anhydride or citraconic anhydride. Free radical polymerization is used in the synthesis of the polymers. The polymers may be complexed with ions and/or mixed with fertilizers or seeds to yield agriculturally useful compositions. The preferred products of the invention may be applied foliarly or to the earth adjacent growing plants in order to enhance nutrient uptake by the plants.

L'invention concerne des polymères anioniques biodégradables comprenant des sous-unités polymères périodiques constituées de préférence de monomères dicarboxyliques, tels que l'anhydride maléique ou itaconique ou citraconique. On utilise une polymérisation radicalaire dans la synthèse de ces polymères. Ces polymères peuvent être complexifiés avec des ions et/ou mélangés à des engrais ou à des graines afin d'obtenir des compositions utiles sur le plan de l'agriculture. Les produits préférés de l'invention peuvent être appliqués par traitement foliaire ou sur les plantes croissant sur la terre adjacente afin d'améliorer la prise de matières nutritives des végétaux.

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