C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 63/66 (2006.01) C08G 63/127 (2006.01) C08G 63/672 (2006.01) C11D 3/37 (2006.01)
Patent
CA 2178908
Amphiphilic polyesters having (a) ester units of polyalkylene glycols with a molar mass of 500 to 7,500 and aliphatic bicarboxylic acids and/or monohydroxy monocarboxylic acids and (b) ester units obtained from aromatic bicarboxylic acids and polyvalent alcohols and with molar masses of 1,500 to 25,000; process for producing the amphiphilic polyesters by polycondensation, in which first of all (a) aliphatic polyesters of polyalkylene glycols with a molar mass of 500 to 7,500 are produced with aliphatic biocarboxylic acids and/or monohydroxy monocarboxylic acids and then, in the aliphatic polyesters thus obtained, (b) aromatic polyesters are produced from aromatic bicarboxylic acids and polyvalent alcohols; the polycondensation sequence is reversed or oligomeric aromatic polyesters (b) are condensed with oligomeric aliphatic polyesters (a); and the use of the amphiphilic polyesters as additives in washing agents, other washing agent additives and washing after treatment agents.
L'invention concerne des polyesters amphiphiles contenant (a) des unités ester de polyalkylène glycols ayant une masse molaire comprise entre 500 et 7500 et d'acides dicarboxyliques aliphatiques et/ou d'acides monohydroxy monocarboxyliques et (b) des unités ester d'acides dicarboxyliques aromatiques et d'alcools polyvalents, et ayant des masses molaires comprises entre 1500 et 25000. L'invention concerne la préparation de polyesters amphiphiles par polycondensation qui s'effectue de la manière suivante: (a) préparation de polyesters aliphatiques de polyalkylène glycols ayant une masse molaire comprise entre 500 et 7500 avec des acides dicarboxyliques aliphatiques et/ou des acides monohydroxy monocarboxyliques, puis préparation, dans les polyesters aliphatiques ainsi obtenus, (b) de polyesters aromatiques d'acides dicarboxyliques et d'alcools polyvalents. L'ordre de la polycondensation est ensuite inversé ou des polyesters aromatiques oligomères (b) sont condensés avec des polyesters aliphatiques oligomères (a). L'invention concerne en outre l'utilisation desdits polyesters amphiphiles comme adjuvants dans des détergents, d'autres additifs pour détergents et dans des agents de traitement ultérieur après lavage.
Boeckh Dieter
Jager Hans-Ulrich
Schornick Gunnar
Basf Aktiengesellschaft
Borden Ladner Gervais Llp
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