Improved polyurethane elastomers
    1.
    发明授权
    Improved polyurethane elastomers 失效
    改进的聚氨酯弹性体

    公开(公告)号:US3845019A

    公开(公告)日:1974-10-29

    申请号:US32900273

    申请日:1973-02-02

    申请人: BAYCHEM CORP

    IPC分类号: C08G18/10 C08G22/10

    摘要: 1. POLYURETHANE ELASTOMERS PREPARED BY A PROCESS COMPRISING REACTING AN ARGANIC POLYISCYANATE WITH AN ORGANIC COMPOUND HAVING ACTIVE HYDROGEN ATOMS WHICH ARE REACTIVE WITH -NCO GROUPS AND A CHAIN-EXTENDING COMPOSITION COMPRISING A MIXTURE OF A COMPOUND OF THE FORMULA

    HO-CH2-CH2-O-(1,4-PHENYLENE)-C(-R)2-(1,4-PHENYLENE)-O-CH2-

    CH2-OH

    WHEREIN R IS HYDROGEN OR METHYL; WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF C3 TO C7 ALKANE DIOLS OR A COMPOUND OF THE FORMULA

    HO-CH2-CH2-NH-CO-(C(-R'')(-R"))X-(CO)Y-NH-CH2-CH2-OH

    WHEREIN R'' AND R" ARE THE SAME OR DIFFERENT AND REPRESENTS HYDROGEN OR C1 TO C4 ALKYL; X IS 0 TO 4 AND Y IS 0 OR 1 WITH THE PROVISO THAT WHEN Y IS 0, X IS 0 AND WHEN Y IS 1, X IS O TO 4

    Flame resistant polyurethane polymers
    2.
    发明授权
    Flame resistant polyurethane polymers 失效
    耐火聚氨酯聚合物

    公开(公告)号:US3719639A

    公开(公告)日:1973-03-06

    申请号:US3719639D

    申请日:1971-03-12

    申请人: BAYCHEM CORP

    发明人: REETZ T BRITAIN J

    摘要: FLAME-RESISTANT POLYURETHANE POLYMERS ARE PREPARED BY REACTING A POLYISOCYANATE WITH AN ORGANIC COMPOUND HAVING ACTIVE HYDROGEN ATOMS WHICH ARE REACTIVE WITH -NCO GROUPS AND A CHAIN-EXTENDING COMPOSITION COMPRISING A MIXTURE OF 2,2-BIS(BROMOMETHYL)-1,3-PROPANEDIOL WITH A COMPOUND HAVING ONE OF THE FOLLOWING FORMULAS:

    HO-(CH2)2-NH-CO-NH-(CH2)2-OH (I)

    HO-(CH2)2-NH-CO-(CH2)N-CO-NH-(CH2)2-OH (II)

    1,3-BIS(HO-CH2-CH2-)-BENZIMIDAZOLIDIN-2-ONE (III)

    2-(HO-CH2-CH2-),5-(HO-CH2-CH2-NH-CO-)ISOINDOLENINE-

    1,3-DIONE (IV)

    WHEREIN N IS 0,1 OR 2.