COMPOSITION THAT IS SUITABLE FOR PRODUCING POLYURETHANE FOAMS AND THAT CONTAINS AT LEAST ONE NUCLEATING AGENT

摘要

The invention relates to a method for producing polyurethane or polyisocyanurate foam materials, comprising the reaction of a composition (ZI), containing a composition (ZP) at least containing a polyol and a catalyst, which catalyzes the formation of a urethane bond, urea bond, or isocyanurate bond, and a surfactant (TD), which does not have a silicon atom and which has an HLB less than 10, wherein the proportion of the sum of the surfactants (TD) in the stabilized composition is (0.05) to (10) parts by mass per (100) parts by mass of the composition (ZP), with at least one polyisocyanate, wherein the reaction occurs in the presence of a nucleating agent, selected from the group comprising perfluorinated hydrocarbons, ethers having at least one perfluorinated hydrocarbon group, and ketones having at least one perfluorinated hydrocarbon group, and in the presence of a blowing agent, wherein the nucleating agent is different from the blowing agent, and wherein the nucleating agent and the blowing agent are mixed together, a composition (Z2) thus being obtained, and the composition (Z2) is added to the composition (ZI) before the reaction with the at least one polyisocyanate. The invention further relates to a stabilized composition (ZS) and to a kit for producing a stabilized composition (ZS) for producing a polyurethane or polyisocyanurate foam material, and to methods for producing polyurethane or polyisocyanurate foam materials by reacting a stabilized composition according to the invention or a stabilized composition that is or can be obtained according to a method according to the invention.