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    Fiber fleeces and synthetic leathers
    1.
    发明授权
    Fiber fleeces and synthetic leathers 失效
    纤维和合成皮革

    公开(公告)号：US3788887A

    公开(公告)日：1974-01-29

    申请号：US3788887D

    申请日：1971-07-09

    Applicant: BAYER AG

    Inventor： TRAUBEL H ,  WEBER K ,  KOCH O ,  KONIG K

    IPC: C08J9/28 ,  D04H1/4258 ,  D04H1/435 ,  D04H1/4382 ,  D04H1/587 ,  D04H1/64 ,  D04H1/68 ,  D06N3/14 ,  C09D5/00

    CPC classification number: D04H1/4258 ,  C08J9/28 ,  C08J2375/04 ,  D04H1/435 ,  D04H1/4382 ,  D04H1/587 ,  D04H1/64 ,  D04H1/68 ,  D06N3/14

    Abstract: BONDED FIBER FLEECES ARE PROVIDED AND A METHOD FOR THEIIIR PRODUCTION WHICH COMPRISES PREPARING A REACTIVE POLYADDITION REACTION MIXTURE FROM AN ORGANIC POLYISOCYANATE, AND AN ORGANIC COMPOUND CONSISTING AT LEAST TWO HYDROXYL OR AMINO HYDROGEN ATOMS CAPABLE OF REACTING WITH NCO GROUPS AS STARTING COMPONENTS IN AN INERT LIQUID ORGANIC SOLVENT FOR THE STARTING COMPONENTS WHICH BOILS AT A TEMPERATURE OF BELOW ABOUT 250*C. BUT WHICH IS A NON-SOLVENT FOR THE POLYADDITION PRODUCT, WHICH SOLVENT HAS NO SIGNIFICANT SWELLING EFFECT ON A HOMOGENEOUS, NON-POROUS FILM OF THE POLYADDITION PRODUCT AND IS PRESENT IN A QUANTITY WHICH DOES NOT EXCEED THAT WHICH THE POLYADDITION PRODUCT IS CAPABLE OF ENCLOSING AS AN INTERNAL PHASE, APPLYING THE REACTIVE MIXTURE TO AN UNBONDED FLEECE IN A QUANTITY SUFFICIENT TO YIELD FROM 10 TO 500% BY WEIGHT BASED ON THE WEIGHT OF THE FLEECE OF THE POLYADDITION PRODUCT AND TERMINATING THE POLYADDITION REACTION AT A TEMPERATURE OF FROM ABOUT 20* TO ABOUT 200*C. WHILE EVAPORATING THE SOLVENT.

    Polyurethanes based on 2,3-dibromo-but-2-ene-1,4-diol
    5.
    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

    Inventor： KONIG K ,  MULLER E ,  WAGNER K

    IPC: C08G18/67 ,  C08G22/16

    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。

    7.
    发明专利
    未知

    公开(公告)号：BR8101283A

    公开(公告)日：1981-09-08

    申请号：BR8101283

    申请日：1981-03-05

    Applicant: BAYER AG

    Inventor： KONIG K ,  SEIFERT P ,  ILLGER H ,  MEYBORG H

    IPC: C08G18/00 ,  C08G18/08 ,  C08G18/32 ,  C08G18/65 ,  C08G18/66 ,  C08L75/04 ,  C08J9/00

    Abstract: A solution of a polyurethane in a polyol is made from (a) the reaction product of a polyisocyanate and a diprimary diol, and (b) a polyether in which the reaction product constitutes from 3 to 60 wt. % of the solution. Suitable diprimary diols have a molecular weight of from 90 to 800 and a structure at both hydroxyl groups corresponding to the general formula: in which R1 represents chlorine, an alkyl, cycloalkyl, aralkyl or aryl radical having from 1 to 10 carbon atoms, which carbon atoms may be substituted or interrupted by chlorine, ester groups, ether groups, amide groups, urethane groups or nitrile groups, and R2 represents hydrogen or a radical within the definition of R1. Polyethers which may be employed have at least two hydroxyl groups (at least 80% of which are secondary hydroxyl groups) and an average molecular weight of from 500 to 12,000. The disclosed solutions are particularly useful in the production of flexible polyurethane plastics which are suitable for flamecoating and high frequency bonding.

    SOLUTIONS OF POLYURETHANE IN POLYETHERS AND POLYURETHANE FOAMS
    9.
    发明专利
    SOLUTIONS OF POLYURETHANE IN POLYETHERS AND POLYURETHANE FOAMS 未知

    公开(公告)号：AU6689881A

    公开(公告)日：1981-09-10

    申请号：AU6689881

    申请日：1981-02-04

    Applicant: BAYER AG

    Inventor： KONIG K

    IPC: C08G18/00 ,  C08G18/08 ,  C08G18/32 ,  C08G18/65 ,  C08G18/66 ,  C08L75/04 ,  C08L71/00 ,  C08L71/02 ,  C08G18/14 ,  C08G18/48

    Abstract: A solution of a polyurethane in a polyol is made from (a) the reaction product of a polyisocyanate and a diprimary diol, and (b) a polyether in which the reaction product constitutes from 3 to 60 wt. % of the solution. Suitable diprimary diols have a molecular weight of from 90 to 800 and a structure at both hydroxyl groups corresponding to the general formula: in which R1 represents chlorine, an alkyl, cycloalkyl, aralkyl or aryl radical having from 1 to 10 carbon atoms, which carbon atoms may be substituted or interrupted by chlorine, ester groups, ether groups, amide groups, urethane groups or nitrile groups, and R2 represents hydrogen or a radical within the definition of R1. Polyethers which may be employed have at least two hydroxyl groups (at least 80% of which are secondary hydroxyl groups) and an average molecular weight of from 500 to 12,000. The disclosed solutions are particularly useful in the production of flexible polyurethane plastics which are suitable for flamecoating and high frequency bonding.

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