Polyurethanes based on 2,3-dibromo-but-2-ene-1,4-diol
    3.
    发明授权
    Polyurethanes based on 2,3-dibromo-but-2-ene-1,4-diol 失效
    基于2,3-二溴-2-丁烯-1,4-二醇的聚氨酯

    公开(公告)号:US3723392A

    公开(公告)日:1973-03-27

    申请号:US3723392D

    申请日:1972-01-17

    Applicant: BAYER AG

    CPC classification number: C08G18/6775

    Abstract: Noncellular polyurethane plastics are prepared from organic compounds having hydroxyl groups and a molecular weight from about 800 to about 3,000, organic diisocyanates and 2,3dibromobut-2-ene-1,4-diol. The polyurethane elastomers due to their improved chemical and thermal stability are eminently suitable in the production of molded articles.

    Abstract translation: 非聚氨酯塑料由具有羟基和分子量为约800至约3,000的有机化合物,有机二异氰酸酯和2,3-二溴丁-2-烯-1,4-二醇制备。 聚氨酯弹性体由于其改进的化学和热稳定性,尤其适用于模塑制品的生产。

    Blowing agents
    5.
    发明授权
    Blowing agents 失效
    发泡剂

    公开(公告)号:US3781233A

    公开(公告)日:1973-12-25

    申请号:US3781233D

    申请日:1972-05-25

    Applicant: BAYER AG

    CPC classification number: C08J9/108

    Abstract: THE INVENTION RELATES TO THE USE OF BISBENZAZIMIDE COMPOUNDS AS BLOWING AGENTS FOR THE PRODUCTION OF CELLULAR AND POROUS ARTICLES FROM ACRYLONITRILE, BUTADIENE AND STYRENE COPOLYMERS. THE BLOWING AGENTS DO NOT LIBERATE ANY CORROSIVE, DISCOLORING, MALODOROUS OR TOXIC DECOMPOSITION PRODUCTS.

    Polymerisable anthranilic acid esters
    7.
    发明授权
    Polymerisable anthranilic acid esters 失效
    可聚合的抗坏血酸酯

    公开(公告)号:US3821282A

    公开(公告)日:1974-06-28

    申请号:US24145972

    申请日:1972-04-05

    Applicant: BAYER AG

    CPC classification number: C08F20/34

    Abstract: Polymerisable anthranilic acid esters are obtained by heating acrylic or methacrylic acid esters containing hydroxyl groups with isatoic anhydride in an organic inert medium at temperatures of from 30* to 150*C in the presence of strong basis. They may be polymerised alone or in combination with other monomers by the methods of bulk solution suspension or emulsion polymerisation. Cross-linkage is possible even with the aid of polyisocyanates, formaldehyde and formaldehyde resins.

    9.
    发明专利
    未知

    公开(公告)号:SE378111B

    公开(公告)日:1975-08-18

    申请号:SE680771

    申请日:1971-05-26

    Applicant: BAYER AG

    Inventor: MECKEL W MULLER E

    Abstract: 1354523 Alkyl diaminobenzoates BAYER AG 21 May 1971 [27 May 1970] 16191/71 Heading C2C [Also in Division C3] Diamines of the general formula (in which R is alkyl) are prepared by esterification of 3,5- or 2,4-dinitrobenzoic acid followed by reduction of the intermediate alkyl dinitrobenzoate with Raney nickel or with iron. In Specific examples the preparation of methyl- 3,5 - diaminobenzoate, isobutyl - 3,5 - diaminobenzoate, 2 - ethylhexyl - 3,5 - diaminobenzoate, stearyl - 3,5 - diaminobenzoate and methyl-2,4-diaminobenzoate is described.

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