COMPOSITIONS FOR RESIN MOLDING (HYBRID) POLYESTER-POLYURETHANE, RETICULABLE AND FOAMMAKER, MOLDED AND FOAMED ARTICLES, FOAM MATERIALS AND USE THEREOF, AND PREPARATION PROCESS

摘要

crosslinkable (foam) polyester-polyurethane resin molding compositions, foamed and molded articles, foam materials and their use, and process for preparing crosslinkable polyester-foam polyurethane resin molding composition comprising: a component a comprising: al) at least one polyfunctional isocyanate compound, and a2) at least one free radical polymerization initiator; a component b comprising by weight: b) 100 parts of at least one polyol resin comprising: b11) 50 to 80 parts of at least one ethylenically unsaturated polyester polyol, b12) 20 to 50 parts of at least one ethylenically unsaturated monomer, with, bll) being the reaction product of: a) an acid component comprising: al) at least one ethylenically unsaturated diacid, and a2) at least one saturated diacid having an al / a2 molar ratio that varies such that the content of unsaturation in b1) from 0.25 / 1 to 5/1 and, b) an excess diol component over component a) b2) from 0.01 to 1.1 parts of water, b3) optionally up to 35 % of at least one hydroxy alkyl (meth) acrylate, b4) at least one isocyanate / hydroxyl reaction catalyst, b5) at least one free radical initiator decomposition accelerator, b6) at least one foam stabilizer, b7) optionally , fillers and / or other additives, said composition being free from any primary amine or and any low pm polyol chain extender. The invention further relates to a process of preparing and specific uses of lightweight articles in sanitary, construction or automotive uses.