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    Coarsely dispersed, sedimenting aqueous polyurethane dispersions
    3.
    发明授权
    Coarsely dispersed, sedimenting aqueous polyurethane dispersions 失效
    浓度分散，分散水性聚氨酯分散体

    公开(公告)号：US3714095A

    公开(公告)日：1973-01-30

    申请号：US3714095D

    申请日：1971-01-12

    Applicant: BAYER AG

    Inventor： REISCHL A ,  DIETERICH D

    IPC: C08G18/08 ,  C08L75/04 ,  C08G41/04 ,  C08G51/24 ,  C08J1/48

    CPC classification number: C08G18/0809 ,  C08L75/04 ,  C08L2666/20

    Abstract: Coarse, aqueous dispersions of polyurethanes that sediment but are capable of being redispersed are prepared from 40 to 99.5 percent by weight of a polyurethane polymer having a molecular weight greater than 5,000 and preferably above 20,000 which is free of salt-forming groups and from about 0.5 to about 60 percent by weight of a polyurethane polymer containing saltforming groups. Salt formation is permitted to occur until 0,0007 to 0,011 equivalent percent has taken place and the mixture is then dispersed at least in a quantity of water such that the solids content is 60 percent.

    Abstract translation: 沉淀但能够再分散的聚氨酯的粗分散水分散体由40至99.5重量％的分子量大于5,000，优选20,000以上的不含成盐基团的聚氨酯聚合物和约0.5重量％ 至约60重量％的含有成盐基团的聚氨酯聚合物。 允许产生盐形成直到发生了0,700至0,011当量百分比，然后混合物至少以一定量的水分散，使得固体含量为60％。

    4.
    发明专利
    未知

    公开(公告)号：BR7906569A

    公开(公告)日：1980-07-22

    申请号：BR7906569

    申请日：1979-10-12

    Applicant: BAYER AG

    Inventor： SCHEINPFEUG H ,  REISCHL A ,  NIGGEMANN J ,  WAGNER K ,  FINDEISEN K

    IPC: A01N63/00 ,  A01G9/10 ,  A23K1/00 ,  A23K10/12 ,  C02F11/00 ,  C05F11/00 ,  C08G8/28 ,  C08G12/40 ,  C08L61/04 ,  C08L61/20 ,  C12N11/00 ,  C12N1/00

    Abstract: 1. Agrochemical agents based on biomasses which have been subjected to a condensation reaction with carbonyl compounds, thiocarbonyl compounds and/or carbonyl compounds which are in dissociation equilibrium with low-molecular, non-condensed N-alkylol compounds, in an aqueous medium, if appropriate in the presence of a catalyst and optionally in the presence of additives, characterised in that they contain at least one modified biomass, which are obtained - by subjecting biomasses of the most diverse nature to a condensation reaction with carbonyl compounds, thiocarbonyl compounds and/or carbonyl compounds which are in dissociation equilibrium with low-molecular, non-condensed N-alkylol compounds, in an aqueous medium, if appropriate in the presence of a catalyst and optionally in the presence of additives, - by then subjecting the unreacted carbonyl compounds, thiocarbonyl compounds and/or carbonyl compounds which are in equilibrium with low-molecular, non-condensed N-alkylol compounds, to a condensation reaction with aminoplast-forming agents which optionally contain N-alkylol groups, or with phenoplast-forming agents, in an aqueous medium, if appropriate in the presence of a catalyst and if appropriate in the presence of chain stoppers and optionally in the presence of additives and - if appropriate by then freeing the modified biomasses thus formed from undesired substances still contained therein and/or by subjecting them to an after-treatment.

    6.
    发明专利
    未知

    公开(公告)号：DK472274A

    公开(公告)日：1975-05-05

    申请号：DK472274

    申请日：1974-09-06

    Applicant: BAYER AG

    Inventor： REISCHL A

    IPC: C08J9/28 ,  C08L75/00 ,  D06M15/564 ,  D06M15/643 ,  D06M15/653 ,  D06N3/14 ,  C08G

    Abstract: A method for making microporous sheets is provided wherein a dispersion of a cationic and/or anionic polyurethane is mixed with a solution containing a non-ionic polyurethane and the resulting mixture is coagulated with a non-solvent for the non-ionic polyurethane.

    9.
    发明专利
    未知

    公开(公告)号：SE437840B

    公开(公告)日：1985-03-18

    申请号：SE7709564

    申请日：1977-08-25

    Applicant: BAYER AG

    Inventor： REISCHL A ,  JABS G

    IPC: C08G18/08 ,  C08G18/00 ,  C08G18/28 ,  C08G18/30 ,  C08G18/32 ,  C08G18/64 ,  C08G18/65 ,  C08L75/04 ,  C08G18/40

    Abstract: This invention relates to solutions of polyisocyanate polyaddition products with a solids content of from 5 to 70% by weight of A. Reaction products of (a) polyisocyanates, (b) hydrazines and/or polyamines and/or dihydrazides and/or ammonia and/or urea and/or low molecular weight polyols, (c) optionally higher molecular weight polyols and (d) optionally formaldehyde in B. polyhydric alcohols having a molecular weight of between 62 and 450.

    10.
    发明专利
    未知

    公开(公告)号：SE7709564L

    公开(公告)日：1978-02-28

    申请号：SE7709564

    申请日：1977-08-25

    Applicant: BAYER AG

    Inventor： REISCHL A ,  JABS G

    IPC: C08G18/08 ,  C08G18/28 ,  C08G18/30 ,  C08G18/00 ,  C08G18/32 ,  C08G18/64 ,  C08G18/65 ,  C08L75/04 ,  C08G18/40

    Abstract: This invention relates to solutions of polyisocyanate polyaddition products with a solids content of from 5 to 70% by weight of A. Reaction products of (a) polyisocyanates, (b) hydrazines and/or polyamines and/or dihydrazides and/or ammonia and/or urea and/or low molecular weight polyols, (c) optionally higher molecular weight polyols and (d) optionally formaldehyde in B. polyhydric alcohols having a molecular weight of between 62 and 450.

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