Use of copolymers on the basis of unsaturated acids or their derivatives as foam-protecting agent

   
   

The invention relates to the use of a copolymer or a mixture of copolymers as foam-protecting agents in detergent or cosmetic formulations, comprising at least one monomer (I) selected from the acids, diacids or unsaturated C3-C5 anhydrides; or at least one monomer (II) selected from ethylene oxide and propylene oxide; or at least one monomer (III) selected from the linear or branched C4-C8 hydrocarbons, comprising at least one ethenoid unsaturation; or at least one monomer (IV) of formula R1 --COO--R2, where R1 is a possibly substituted linear or branched C1-C3 hydrocarbon radical; R2 is a linear or branched C1-C4 hydrocarbon radical which is possibly substituted by an anionic radical or a hydroxyl group; and the monomer (IV) further comprises at least one ethenoid unsaturation.

La invención se relaciona con el uso de un copolímero o de una mezcla de copolímeros como agentes de espuma-proteccio'n en formulaciones detergentes o cosméticas, abarcando por lo menos un monomer (i) seleccionado de los ácidos, diacids o los anhídridos no saturados C3-C5; o por lo menos un monomer (ii) seleccionado del óxido del etileno y del óxido del propylene; o por lo menos un monomer (iii) seleccionado de los hidrocarburos lineares o ramificados C4-C8, abarcando por lo menos una no saturación ethenoid; o por lo menos un monomer (iv) del fórmula R1 -- coo -- r2, donde está un radical R1 de hidrocarburo linear o ramificado posiblemente substituido C1-C3; R2 es un radical de hidrocarburo linear o ramificado C1-C4 que es substituido posiblemente por un radical aniónico o un grupo del oxhidrilo; y el monomer (iv) más futuro abarca por lo menos una no saturación ethenoid.

 
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