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    • 49. 发明授权
    • Fire retardant crosslinked copolymers
    • 阻燃交联共聚物
    • US3842048A
    • 1974-10-15
    • US29112872
    • 1972-09-21
    • STAUFFER CHEMICAL CO
    • JIN J
    • C08F30/02C08L23/02C08F3/62
    • C08F30/02C08L23/02
    • 1. A SOLID CROSSLINKED COPOLYMER OF (1) FROM ABOUT 2-60%, BY WEIGHT OF THE TOTAL COPOLYMER, OF AT LEAST ONE MONOMER CONTAINING TWO OR MORE POLYMERIZABLE, ETHYLENICALLY UNSATURATED BONDS; (2) FROM ABOUT 3-98% BY WEIGHT OF AT LEAST ONE BIS (HYDROCARBYL) VINYLPHOSPHONATE HAVING THE STRUTURE:

      H2C=C(-X)-P(=O)
      WHEREIN X IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, HALOGEN, CYANO, ARYL, AND HALOARYL, C1-C18 ALKYL AND HALOALKYL, AND

      -P(=O)
      WHEREIN R AND R1 ARE HYDROCARBYL AND SUBSTITUTED HYDROCARBYL GROUPS HAVING NON-INTERFERING SUBSTITUTED, SAID HYDROCARBYL AND SAID SUBSTITUTED HYDROCARBYL GROUPS CONTAINING UP TO ABOUT 18 CARBON ATOMS, INCLUSIVE, WITH THE PROVISO THAT R AND R1 CAN BE THE SAME, DIFFEVENT OR CAN JOINT; AND (3) THE REMAINDER BEING AT LEAST ONE MONOFUNCTIONAL VINYL COMONOMER SELECTED FROM THE GROUP CONSISTING OF THE VINYL HALIDES, THE VINYLIDENE HALIDENES, THE ALPHA-OLEFINS, THE VINYL ESTERS OF CARBOXYLIC ACIDS, THE C1-C20 ALKYL ESTERS OF ACRYLIC AND METHACRYLIC ACID, THE ARYHALO AND NITRO-SUBSTITTUTED BENZYL ESTERS OF ACRYLIC AND METHACRYLIC ACID, THE ETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACIDS, THE ETHYLENICALLY UNSATURATED DICARBOXYLIC ACIDS, THEIR ANHYDRIDES AND THEIR C1-C2* MONO- AND DIALKYL ESTERS, THE AMIDES OF ETHYLENICALLY UNSATURATED CARBOXYLIC ACIDS, THE VINYL ARYL COMPOUNDS, AND THE C1-C20 ALKYL VINYL ETHERS, SAID MONOFUNCTIONAL VINYL COMONOMER BEING PRESENT IN AN AMOUNT UP TO ABOUT 90% BY WEIGHT.