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    FLAME-RESISTANT POLYCARBAMIDE FOAM
    81.
    发明专利
    FLAME-RESISTANT POLYCARBAMIDE FOAM 未知

    公开(公告)号：HU9503381D0

    公开(公告)日：1996-02-28

    申请号：HU9503381

    申请日：1995-03-22

    Applicant: HOECHST AG

    Inventor： STAENDEKE HORST ,  LAGODA REINHOLD

    IPC: C08J9/02 ,  C04B26/16 ,  C08G18/00 ,  C08G18/08 ,  C08G18/10 ,  C08J9/00 ,  C08L75/00 ,  C08L75/02 ,  C09K3/32

    Abstract: PCT No. PCT/EP95/01073 Sec. 371 Date Jul. 1, 1996 Sec. 102(e) Date Jul. 1, 1996 PCT Filed Mar. 22, 1995 PCT Pub. No. WO95/26322 PCT Pub. Date Oct. 5, 1995The flame-resistant polyurea foam of the invention contains calcium sulfate dihydrate as filler and ammonium polyphosphate as flame retardant. Its bulk density is from 25 to 250 kg/m3 and the number of open cells is above 80% of all its cells. The polyurea has been formed from a reaction of prepolymers of diphenylmethane 4,4'-diisocyanate with water. The polyurea foam of the invention can be used as a block foam or on-site foam for sound and/or heat insulation.

    84.
    发明专利
    未知

    公开(公告)号：DE3774093D1

    公开(公告)日：1991-11-28

    申请号：DE3774093

    申请日：1987-11-25

    Applicant: HOECHST AG

    Inventor： STAENDEKE HORST ,  KRAUSE WERNER

    IPC: C08J9/02 ,  C08G18/00 ,  C08K5/53 ,  C08K5/5333 ,  C08L75/00 ,  C08L75/04

    Abstract: Flame retardant polyurethane foams, esp. soft foams, based on polyetherpolyols, are made with a content of 2-50, esp. 5-15 pts.wt. per 100 pts.wt. polyol of at least one halogenated phosphonophosphoric acid ester of formula (I) in which X = halogen, R1 = 1-4C alkylene, A is =C=C(R3)2 or =C(R4)-C(R3)3, R3 (same or different) = 1-4C alkyl, H or halogen and R4 = H or halogen.

    DESENSITIZED RED PHOSPHORUS
    85.
    发明专利
    DESENSITIZED RED PHOSPHORUS 未知

    公开(公告)号：CA1284016C

    公开(公告)日：1991-05-14

    申请号：CA490085

    申请日：1985-09-05

    Applicant: HOECHST AG

    Inventor： STAENDEKE HORST ,  THUMMLER URSUS

    IPC: C01B25/00 ,  C01B25/023 ,  C01B25/043 ,  C08K3/02

    Abstract: DESENSITIZED RED PHOSPHORUS Desensitized pulverulent red phosphorus obtained by treating red phosphorus with a organic desensitizer which is liquid, inactive with respect to red phosphorus and has a minor vapor pressure at room temperature and atmospheric pressure, is comprised of 98 to 99.95 mass % red phosphorus having a particle size of up to about 2 mm and of 0.05 up to less than 2 mass % organic compound emulsifiable in water. The densitized phosphorus is made by introducing an aqueous emulsion of an organic desensitizer into an aqueous suspension of red phosphorus consisting of particles with a size of up to about 2 mm so as to have less than 2 to 0.05 mass parts organic desensitizer in more than 98 up to 99.95 mass parts red phsophorus; next, a pH within the range 5 to 9 is established and the mixture is stirred over a period of 0.5 to 3 hours at a temperature of 20 to 90.degree.C; the desensitized red phosphorus is ultimately filtered and dried at elevated temperature.

    PHLEGMATIZED RED PHOSPHORUS
    86.
    发明专利
    PHLEGMATIZED RED PHOSPHORUS 未知

    公开(公告)号：CA2010227A1

    公开(公告)日：1990-08-18

    申请号：CA2010227

    申请日：1990-02-16

    Applicant: HOECHST AG

    Inventor： STAENDEKE HORST ,  THUMMLER URSUS

    IPC: C01B25/00 ,  C08K3/02 ,  C08K9/04 ,  C08K9/08 ,  C01B25/023 ,  C01B25/043

    Abstract: HOE 89/H 008 Phlegmatized red phosphorus : Phlegmatized, pulverulent red phosphorus with good freeflowing properties comprises 95 to 99.95 % by weight of red phosphorus having a particle size of up to 2 mm, and 0.05 to 5 % by weight of polyurethane as phlegmatization agent. This red phosphorus is prepared by introducing an aqueous polyurethane dispersion into an aqueous suspension of red phosphorus having a particle size of up to 2 mm, after a pH of from 5 to 9 has been set, in a manner such that 5 to 0.05 parts by weight of polyurethane are present per 95 to 99.95 parts by weight of red phosphorus, then stirring the mixture at a temperature of from 20 to 90.degree.C for 0.5 to 3 hours, and finally drying the phlegmatized red phosphorus at elevated temperature after filtration.

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