| abstract |
i) einem ein- oder mehrfach ethylenisch ungesättigten Mono- oder Polyalkohol nmit ii) einem Di- oder Polyisocyanat, iii) mindestens einer Aminoverbindung nund iv) mindestens einem Säureanhydrid einer mindestens zweiwertigen Carbonsäure, wobei die Summe der NCO- und Anhydridgruppen in ii) und iv) kleiner oder gleich der Zahl der damit reaktiven Gruppen in i) und iii) ist, nerhalten worden ist.The invention relates to a reaction product containing urea and urethane groups and carboxyl groups, which by reaction of i) a mono- or poly-ethylenically unsaturated mono- or polyalcohol With ii) a di- or polyisocyanate, iii) at least one amino compound and iv) at least one acid anhydride of an at least dibasic carboxylic acid, the sum of the NCO and anhydride groups in ii) and iv) being less than or equal to the number of groups reactive therewith in i) and iii), has been obtained.n n n This reaction product is suitable for the production of radiation-sensitive materials, in particular those materials whose solubility in water or aqueous alkaline solutions increases due to radiation. |