C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 3/18 (2006.01) C08J 3/20 (2006.01) C08K 5/09 (2006.01) C08K 5/103 (2006.01) C08L 101/00 (2006.01) C09D 7/12 (2006.01)
Patent
CA 2668269
In addition to acting as effective plasticizers, benzoic acid ester combinations comprising diesters of glycols and at least one of the corresponding monoesters within a specified concentration range are unique in their ability to act as coalescents for aqueous polymer compositions, thereby replacing more volatile organic compounds such as diols, glycols and esters of mono-and dihydric alcohols and benzoates of monohydric alcohols containing 8-10 carbon atoms. Within a preferred concentration range the benzoate combinations impart additional desirable properties to films formed from the polymer composition. These combinations can replace at least a portion of the more volatile organic compounds without any decrease in coalescing ability of the polymers present in the composition.
Outre leur action en tant que plastifiants efficaces, les combinaisons d'ester d'acide benzoïque comprenant des diesters de glycols et au moins un des monoesters correspondants, dans une gamme spécifique de concentrations, présentent une faculté unique d'agir en tant que coalescents pour des compositions polymères aqueuses, remplaçant de ce fait des composés organiques volatiles supplémentaires tels que les diols, les glycols, les esters d'alcools mono et dihydriques et les benzoates d'alcools monohydriques contenant entre 8 et 10 atomes de carbone. Dans une gamme préférée de concentrations, les combinaisons de benzoate attribuent des propriétés souhaitables aux films formés à partir de la composition polymère. Ces combinaisons peuvent remplacer au moins un des composés organiques volatiles supplémentaires, sans aucune baisse de la capacité de coalescence des polymères présents dans la composition.
Arendt William D.
Joshi Makarand V.
Strepka Arron
Genovique Specialties Holdings Corporation
Macrae & Co.
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