2.
    发明专利
    未知

    公开(公告)号:CH615688A5

    公开(公告)日:1980-02-15

    申请号:CH1377174

    申请日:1974-10-14

    Applicant: HOECHST AG

    Abstract: Production of agents reducing the flammability of polyurethane moulding compositions. The agents are more particularly comprised of compounds of the following general formula (I) (I) IN WHICH R stands for an alkylene radical having from 2 to 6 carbon atoms, which may be halogen-substituted, if desired, a -CH2-CH2-O-CH2-CH2- radical, a phenylene radical or an alkyl- or halogenoalkyl-substituted diphenylene methane radical, R1 and R2, respectively, stand for a hydrogen atom, an alkyl radical or a halogen-substituted alkyl radical having from 1 to 4 carbon atoms, x + y stand for a number between 0.1 and 3, and n stands for 1 or 2.

    5.
    发明专利
    未知

    公开(公告)号:CH613225A5

    公开(公告)日:1979-09-14

    申请号:CH1431774

    申请日:1974-10-25

    Applicant: HOECHST AG

    Abstract: Production of intumescent flame-retardant coating compositions which substantially contain a film-forming binder, an ammonium polyphosphate, one or more substances carbonizing under the action of heat, dispersing agents and fillers, if desired. The compositions contain more particularly an ammonium polyphosphate of the general formula:

    8.
    发明专利
    未知

    公开(公告)号:CH612941A5

    公开(公告)日:1979-08-31

    申请号:CH1431974

    申请日:1974-10-25

    Applicant: HOECHST AG

    Abstract: 1443117 Polyurethane foams HOECHST AG 8 Nov 1974 [9 Nov 1973] 48427/74 Heading C3R [Also in Division C2] Polyurethane foams are flame retarded by incorporating in the foam-forming mixture a polyol of Formula I where A is A 1 is B is Cl-CH 2 -CH 2 -O-, R is optionally halogen-substituted C 2-6 alkylene, phenylene or diphenylenemethane optionally substituted by alkyl or haloalkyl on the methylene C atom, one of R 1 and R 2 is H and the other is C 1-4 alkyl or haloalkyl or R 1 and R 2 are each C 1-4 alkyl or haloalkyl, x + y is 0À1 to 3 and n 1 or 2. In an example the polyurethane is formed from a partially branched polyether polyol based on propylene oxide and toluylene diisocyanate (80 : 20 blend of the 2,4- and 2,6- isomers).

    STABILIZED RED PHOSPHORUS
    10.
    发明专利

    公开(公告)号:DE2961295D1

    公开(公告)日:1982-01-14

    申请号:DE2961295

    申请日:1979-03-05

    Applicant: HOECHST AG

    Abstract: The invention provides stabilized pulverulent red phosphorus comprising a homogeneous blend of red phosphorus particles with a size of at most about 2 mm, aluminum hydroxide and a further metal hydroxide as oxidation stabilizers, wherein the metal hydroxide is lead hydroxide. The homogeneous blend contains aluminum hydroxide and lead hydroxide in a total proportion of about 0.1 to 6 weight %, based on the quantity of red phosphorus, the aluminum hydroxide and lead hydroxide, calculated as Al2O3 to PbO, being used in a quantitative ratio of about 0.5 to 2.0.

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