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    12.
    发明专利
    未知

    公开(公告)号：DE3003963A1

    公开(公告)日：1981-08-13

    申请号：DE3003963

    申请日：1980-02-04

    Applicant: BASF AG

    Inventor： HORACEK HEINRICH DR ,  BARL MANFRED DIPL CHEM DR ,  WURMB ROLF DIPL CHEM DR ,  MARX MATTHIAS DIPL CHEM DR

    IPC: C08G18/18

    Abstract: A process for making a polyurethane which comprises reacting an organic polyisocyanate with a higher molecular weight organic polyhydroxyl compound in the presence of a catalyst having the following formula: wherein X is sulfur or NH and n is a whole number from 2 to 6. Also used is a catalyst which is a combination of the above-mentioned catalyst and an organic tin compound.

    15.
    发明专利
    未知

    公开(公告)号：DE3318218A1

    公开(公告)日：1984-11-22

    申请号：DE3318218

    申请日：1983-05-19

    Applicant: BASF AG

    Inventor： HORACEK HEINRICH DR

    IPC: B01D21/01 ,  C02F1/54 ,  C08J3/05 ,  C08L33/00 ,  C08J3/06 ,  C08L33/26 ,  C08L33/02 ,  C08L33/14 ,  C02F1/56 ,  C02F11/14

    Abstract: Process for the preparation of water-in-water secondary dispersions of homo- or copolymers of (meth)acryl compounds through the dispersion of fine particle polymers of the type cited in an aqueous solution which contains in dissolved form from 2 to 50 weight percent of a polymer of ethylene oxide and/or propylene oxide having a molecular weight of from 500 to 10,000. The secondary dispersions can be easily diluted with water and are used as flocculants.

    Polyurethane integral foam and non-polyurethane foam composite - have closed compact external polyurethane integral foam skin surface
    18.
    发明专利
    Polyurethane integral foam and non-polyurethane foam composite - have closed compact external polyurethane integral foam skin surface 未知

    公开(公告)号：DE2902255A1

    公开(公告)日：1980-07-31

    申请号：DE2902255

    申请日：1979-01-20

    Applicant: BASF AG

    Inventor： HORACEK HEINRICH DR ,  NISSEN DIETMAR DIPL CHEM DR ,  HAARDT UDO ING GRAD ,  REICH ERHARDT DIPL CHEM DR

    IPC: B29C44/04 ,  B32B5/32 ,  C08J9/34 ,  B32B27/40 ,  B29D27/00

    Abstract: Composite foams, having a closed, compact outer skin of polyurethane integral foam on >=1 side of surface, consist of a polyurethane integral foam, (A), and of a non-polyurethane foam (B). The composite foams are prepd. by (i) introducing the foamable polyurethane integral foam mixt., in flowable condition, into a sealable mould, in quantities such that compression ratio achieved on foaming is 1.5-3, (ii) the non-polyurethane foam is laid so as to float on the still flowable polyurethane integral foam mixt.; (iii) the mould is closed and (iv) the polyurethane integral foam mixt. is left to foam. The outer skin of (A) has high tensile- and flexural strength. Properties such as bulk wt., compressive stress and combustibility, are determined by (B). Composite foam, contg. polyethylene foam as (B) and soft, elastic (A) are used as sports mats (claimed) and opt. as wall claddings for gymnasia. Polystyrene and rigid (A) foams can be used as wood substitutes, partitions and furniture parts. Rigid (A) and foamed phenoplast or aminoplast as (B), opt. with inorganic-, e.g. silicate-, foams, are used as building components requiring good heat-insulation and non-flammability.

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