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    Modified melamine-formaldehyde resins
    1.
    发明授权
    Modified melamine-formaldehyde resins 失效
    改性三聚氰胺 - 甲醛树脂

    公开(公告)号：US5322915A

    公开(公告)日：1994-06-21

    申请号：US910382

    申请日：1992-07-08

    申请人： Juergen Weiser ,  Wolfgang Reuther ,  Rolf Fikentscher ,  Wolfgang Fath ,  Heinz Berbner ,  Hans D. Zettler ,  Heinz Voelker

    发明人： Juergen Weiser ,  Wolfgang Reuther ,  Rolf Fikentscher ,  Wolfgang Fath ,  Heinz Berbner ,  Hans D. Zettler ,  Heinz Voelker

    IPC分类号： C08G14/09 ,  C08G14/06 ,  C08G14/10

    CPC分类号： C08G14/10

    摘要： A condensation polymer, obtainable by condensation of a mixture containing, as chief components,(A) from 90 to 99.9% molar of a mixture substantially consisting of(a) from 30 to 99% molar of melamine and(b) from 1 to 70% molar of a substituted melamine of the general formula I ##STR1## in which X, X', and X" are selected from the group consisting of --NH.sub.2, --NHR, and --NRR', and only one or two of X, X', and X" denote(s) --NH.sub.2, and R and R' are selected from the group consisting of hydroxy-C.sub.2 -C.sub.10 -alkyl, hydroxy-C.sub.2 -C.sub.4 -alkyl-(oxa-C.sub.2 -C.sub.4 -alkyl).sub.n, where n is an integer from 1 to 5, and amino-C.sub.2 -C.sub.12 -alkyl, or mixtures of melamines I, and(B) from 0.1 to 10% molar, based on (A) and (B), of unsubstituted phenols or phenols substituted by radicals selected from the group consisting of C.sub.1 -C.sub.9 -alkyl and hydroxy, or of C.sub.1 -C.sub.4 -alkanes substituted by two or three phenol groups, di(hydroxyphenyl)sulfones, or mixtures of said phenols,with formaldehyde or formaldehyde-liberating compounds, the molar ratio of melamine to formaldehyde ranging from 1:1.15 to 1:4.5.

    摘要翻译： 缩合聚合物，其可通过以主要组分（A）为90至99.9％摩尔的混合物缩合获得，该混合物基本上由（a）30至99％摩尔的三聚氰胺和（b）1至70 ％摩尔的通式I的取代三聚氰胺（I）其中X，X'和X“选自-NH 2，-NHR和-NRR'，并且只有一个或 X，X'和X“中的两个表示（s）-NH 2，R和R'选自羟基-C 2 -C 10 - 烷基，羟基-C 2 - C 4 - 烷基 - （氧杂-C2 -C 1-4 - 烷基）n，其中n为1至5的整数，氨基-C 2 -C 12 - 烷基或三聚氰胺I和（B）的混合物为0.1至10摩尔％，基于（A）和（ B）的未取代的酚或被选自C 1 -C 9 - 烷基和羟基的基团或被两个或三个苯酚基取代的C 1 -C 4烷烃取代的酚，二（羟基苯基）砜或所述 酚，与甲醛或甲醛释放化合物，摩尔 三聚氰胺与甲醛的比例范围为1：1.15至1：4.5。

    Preparation of addition salts of cysteamine with acids
    5.
    发明授权
    Preparation of addition salts of cysteamine with acids 失效
    半胱胺与酸的加成盐的制备

    公开(公告)号：US5017725A

    公开(公告)日：1991-05-21

    申请号：US471080

    申请日：1990-01-30

    申请人： Andreas Hohmann ,  Wolfgang Reuther ,  Rolf Fikentscher ,  Theo Proll

    发明人： Andreas Hohmann ,  Wolfgang Reuther ,  Rolf Fikentscher ,  Theo Proll

    IPC分类号： C07D277/04 ,  C07C319/02 ,  C07C319/06 ,  C07C323/25 ,  C07D277/60

    CPC分类号： C07C319/02 ,  C07C323/25

    摘要： Addition salts of cysteamine with acids are prepared by reacting aziridine with an organic sulfur compound of oxidation state -2 and with a ketone and then subjecting the thiazolidine formed as an intermediate to acid hydrolysis, by a process in which aziridine and the ketone are reacted with ammonium hydrogen sulfide or with a metal hydrogen sulfide with the addition of a moderately strong or strong acid at from -10.degree. to +100.degree. C. and a pH which is greater than or equal to 8.5 is maintained.

    摘要翻译： 半胱胺与酸的加成盐通过使氮丙啶与氧化态-2的有机硫化合物和酮反应，然后使形成的中间体的噻唑烷进行酸水解，通过其中将氮丙啶和酮与 硫化氢铵或与金属硫化氢反应，加入中等强度或强酸的温度为-10至+ 100℃，并保持大于或等于8.5的pH值。

    Preparation of N-hydroxypyrazoles
    6.
    发明授权
    Preparation of N-hydroxypyrazoles 失效
    N-羟基吡唑的制备

    公开(公告)号：US4945166A

    公开(公告)日：1990-07-31

    申请号：US367053

    申请日：1989-06-16

    申请人： Ulf Baus ,  Wolfgang Reuther ,  Rolf Fikentscher

    发明人： Ulf Baus ,  Wolfgang Reuther ,  Rolf Fikentscher

    IPC分类号： C07D231/12 ,  C07D231/16 ,  C07D231/54 ,  C07D231/56 ,  C07D521/00

    CPC分类号： C07D249/08 ,  C07D231/12 ,  C07D231/16 ,  C07D231/56 ,  C07D233/56

    摘要： N-hydroxypyrazoles of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 may be identical or different and are each hydrogen, alkyl, halogen or aryl, or R.sup.1 and R.sup.2 or R.sup.2 and R.sup.3 together with the carbon atoms carrying these radicals form an aromatic or nonaromatic ring of 5 or 6 carbon atoms are prepared by a process in which(A) a pyrazole of the general formula II ##STR2## is converted in a conventional manner with an alkali metal hydroxide, alkali metal hydride or alkali metal carbonate into one of its metal salts of the general formula III ##STR3## where ME.sym. is a cation of an alkali metal, and (B) the resulting metal salt of the general formula III is reacted with dibenzoyl peroxide in an inert organic solvent or in a 2-phase system, in the presence or absence of a phase transfer catalyst.

    摘要翻译： 通式I的N-羟基吡唑（I）其中R 1，R 2和R 3可以相同或不同，各自为氢，烷基，卤素或芳基，或R 1和R 2或R 2和R 3与携带的碳原子一起 这些基团形成5或6个碳原子的芳族或非芳族环是通过以下方法制备的：其中（A）通式II的吡唑（II）以常规方式用碱金属氢氧化物，碱 金属氢化物或碱金属碳酸盐转化成其通式III（III）的金属盐之一，其中ME（+）是碱金属的阳离子，和（B）所得到的通式III的金属盐是 在相转移催化剂存在或不存在下，在惰性有机溶剂或2-相体系中与二苯甲酰基过氧化物反应。

    Condensates of polyalkylenepolyamines, their preparation and their use in papermaking
    7.
    发明授权
    Condensates of polyalkylenepolyamines, their preparation and their use in papermaking 失效
    聚亚烷基多胺的缩合物，它们的制备及其在造纸中的应用

    公开(公告)号：US5536370A

    公开(公告)日：1996-07-16

    申请号：US424520

    申请日：1995-05-26

    申请人： Guenter Scherr ,  Wolfgang Reuther ,  Primoz Lorencak ,  Dietmar Moench ,  Friedrich Linhart ,  Juergen Weiser

    发明人： Guenter Scherr ,  Wolfgang Reuther ,  Primoz Lorencak ,  Dietmar Moench ,  Friedrich Linhart ,  Juergen Weiser

    IPC分类号： C08G69/48 ,  C08G18/32 ,  C08G18/60 ,  C08G59/14 ,  C08G73/00 ,  C08G73/02 ,  C08G73/04 ,  D21F1/66 ,  D21H11/14 ,  D21H17/46 ,  D21H17/54 ,  D21H17/56 ,  D21H21/10

    CPC分类号： D21H17/54 ,  C08G73/022 ,  D21F1/66 ,  D21H11/14 ,  D21H21/10

    摘要： Condensates of polyalkylenepolyamines which are obtainable by(a) partial amidation of polyalkylenepolyamines and(b) condensation of the partially amidated polyalkylenepolyamines with bifunctional or polyfunctional crosslinking agentsto give crosslinked polyalkylenepolyamines which, in 20% strength aqueous solution at 20.degree. C., have a viscosity of at least 100 mPa.s, processes for the preparation of the condensates of polyalkylenepolyamines by partial amidation of polyalkylenepolyamines with carboxylic acids, carboxylic esters, carboxylic anhydrides or carbonyl halides and crosslinking of the partially amidated polyalkylenepolyamines with bifunctional or polyfunctional crosslinking agents, from 0.001 to 10 parts by weight of a crosslinking agent being used per part by weight of the partially amidated polyalkylenepolyamines, and the use of the resulting condensates as drainage aids, flocculants, retention aids and fixing agents in papermaking.

    摘要翻译： PCT No.PCT / EP93 / 03205 Sec。 371日期：1995年5月26日 102（e）日期1995年5月26日PCT提交1993年11月16日PCT公布。 公开号WO94 / 12560 PCT 日本1994年6月9日。聚亚烷基多胺的缩聚物可通过（a）聚亚烷基多胺的部分酰胺化得到并且（b）部分酰胺化的聚亚烷基多胺与双功能或多官能交联剂的缩合得到交联的聚亚烷基多胺，其在20％强度水溶液中 20℃，具有至少100mPa.s的粘度，通过聚羧酸，羧酸酯，羧酸酐或羰基卤的部分酰胺化制备聚亚烷基多胺的缩合物的方法，部分酰化的聚亚烷基多胺的交联与 双官能或多官能交联剂，每重量份部分酰胺化的聚亚烷基多胺使用0.001至10重量份的交联剂，以及所得缩合物作为造纸中的助滤剂，絮凝剂，助留剂和固定剂的用途。

    Recycling of cured aminoplast resins
    8.
    发明授权
    Recycling of cured aminoplast resins 失效
    固化的氨基塑料树脂的回收

    公开(公告)号：US5356938A

    公开(公告)日：1994-10-18

    申请号：US196493

    申请日：1994-02-15

    申请人： Juergen Weiser ,  Wolfgang Reuther ,  Erwin Hahn

    发明人： Juergen Weiser ,  Wolfgang Reuther ,  Erwin Hahn

    IPC分类号： C08G14/10 ,  C08J11/16 ,  C09D161/34 ,  C14C3/20 ,  C08J11/04

    CPC分类号： C08J11/16 ,  C08G14/10 ,  C09D161/34 ,  C14C3/20 ,  C08J2361/20 ,  Y02W30/705 ,  Y10T428/31504 ,  Y10T428/4935

    摘要： Cured aminoplast resins are recycled by a process in which said resins, which may contain fillers, are treated with an aqueous sulfite, hydrogen sulfite or disulfite solution and the resulting low molecular weight degradation products are used in chemical processes. The resulting low molecular weight degradation products of cured aminoplast resins are used for coating moldings, for tanning leather and skins and for the production of moldings which contain cured aminoplast resins or consist thereof.

    摘要翻译： 固化的氨基塑料树脂通过其中可以含有填料的所述树脂用亚硫酸氢盐，亚硫酸氢盐或二亚硫酸盐溶液处理的方法再循环，并且所得到的低分子量降解产物用于化学方法。 所得到的固化的氨基塑料树脂的低分子量降解产物用于涂布模制品，用于鞣制皮革和皮肤，以及用于生产包含固化的氨基塑料树脂或由其组成的模制品。

    Recycling of cured aminoplast resins
    10.
    发明授权
    Recycling of cured aminoplast resins 失效
    固化的氨基塑料树脂的回收

    公开(公告)号：US5382476A

    公开(公告)日：1995-01-17

    申请号：US247184

    申请日：1994-05-20

    申请人： Juergen Weiser ,  Wolfgang Reuther ,  Erwin Hahn

    发明人： Juergen Weiser ,  Wolfgang Reuther ,  Erwin Hahn

    IPC分类号： C08G14/10 ,  C08J11/16 ,  C09D161/34 ,  C14C3/20 ,  B32B9/04 ,  C14C9/00

    CPC分类号： C08J11/16 ,  C08G14/10 ,  C09D161/34 ,  C14C3/20 ,  C08J2361/20 ,  Y02W30/705 ,  Y10T428/31504 ,  Y10T428/4935

    摘要： Cured aminoplast resins are recycled by a process in which said resins, which may contain fillers, are treated with an aqueous sulfite, hydrogen sulfite or disulfite solution and the resulting low molecular weight degradation products are used in chemical processes. The resulting low molecular weight degradation products of cured aminoplast resins are used for coating moldings, for tanning leather and skins and for the production of moldings which contain cured aminoplast resins or consist thereof.

    摘要翻译： 固化的氨基塑料树脂通过其中可以含有填料的所述树脂用亚硫酸氢盐，亚硫酸氢盐或二亚硫酸盐溶液处理的方法再循环，并且所得到的低分子量降解产物用于化学方法。 所得到的固化的氨基塑料树脂的低分子量降解产物用于涂布模制品，用于鞣制皮革和皮肤，以及用于生产包含固化的氨基塑料树脂或由其组成的模制品。