| 摘要 |
A process for the manufacture of curable unsaturated polyester molding compositions. To a mixture of A. AT LEAST ONE UNSATURATED POLYESTER, B. AT LEAST ONE COPOLYMERIZABLE OLEFINICALLY UNSATURATED COMPOUND, C. AN ALKALINE EARTH METAL OXIDE AND/OR HYDROXIDE, D. AT LEAST ONE INHIBITOR AND, OPTIONALLY, E. CONVENTIONAL FILLERS, REINFORCING AGENTS, INERT SOLVENTS, POLYMERIZATION ACCELERATORS AND/OR OTHER AUXILIARIES CONVENTIONALLY USED IN THE PROCESSING OF POLYESTER MOLDING COMPOSITIONS, THERE IS ADDED FROM 0.005 TO 1% BY WEIGHT, BASED ON UNSATURATED POLYESTER RESIN (A) PLUS (B), OR AT LEAST ONE COMPOUND OF THE GENERAL FORMULA Z On Xm WHERE Z denotes hydrogen, deuterium, phosphorus, boron, aluminum, gallium, silicon, germanium, tin, lead, antimony, bismuth, zinc, titanium, zirconium or sulfur and X denotes fluorine, chlorine, bromine, iodine or a mixture thereof and n denotes 0, 1 or 2 and m denotes 2, 3, 4, 5 or 6. The process of the invention is used for rapid thickening of molding compositions of unsaturated polyester resins. |
