| 摘要 |
The present invention relates to alkenylaminoalkylenephosphonic esters of the formula (1) <IMAGE> where R<1> to R<5>, Z, X, a and b have the meaning stated in the description, excepting the compounds of the formula (H2C=CH-CH2)2N-CH[PO3(C2H5)2]2 and (H2C=CH-CH 2)2N-CHR<4>-PO3X2, and to a process for their preparation. The invention likewise relates to a process for the preparation of copolymers comprising 0.1 - 99 % by weight, preferably 1 - 50 % by weight, of at least one monomer unit of the formula (2) <IMAGE> where R<6>, R<7>, M and Y have the meaning stated in the description, and 99.9 - 0.1 % by weight, preferably 99 - 50 % by weight, of at least one monomer unit from the group of ethylenically unsaturated carboxylic acids, sulphonic acids and their derivatives as well as other ethylenically unsaturated compounds and to the use of the copolymers as scale preventers, complexing/sequestering agents and builders or cobuilders in detergents. |
