Recycling of cured aminoplast resins
    1.
    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

    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
    3.
    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

    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。

    Condensates of polyalkylenepolyamines, their preparation and their use
in papermaking
    4.
    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

    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。

    Water-soluble condensation products of amino-containing compounds and
crosslinkers, preparation thereof and use thereof
    5.
    发明授权
    Water-soluble condensation products of amino-containing compounds and crosslinkers, preparation thereof and use thereof 失效
    含氨基化合物和交联剂的水溶性缩合产物,其制备及其用途

    公开(公告)号:US5641855A

    公开(公告)日:1997-06-24

    申请号:US464623

    申请日:1995-06-26

    摘要: There are described water-soluble condensation products of amino-containing compounds and crosslinkers, obtainable by reacting(a) polyalkylenepolyamines, polyamidoamines, ethylene-imine-grafted polyamidoamines, polyetheramines and mixtures thereof, with(b) monethylenically unsaturated carboxylic acids, salts, esters, amides or nitriles of monoethylenically unsaturated carboxylic acids, chlorocarboxylic acids and/or glycidyl compounds such as glycidic acid, glycidamide or glycidyl esters, and(c) at least bifunctional crosslinkers having a halo-hydrin, glycidyl, aziridine or isocyanate unit or a halogen atom as functional group,to form water-soluble condensation products having a viscosity of at least 100 mPas in a 20% strength by weight aqueous solution at 20.degree. C., processes for preparing the water-soluble condensation products by reacting the abovementioned compounds of groups (a), (b) and (c), and the use of the condensation products as drainage, flocculation and retention aids in papermaking.

    摘要翻译: PCT No.PCT / EP93 / 03573 371日期:1995年6月26日 102(e)日期1995年6月26日PCT提交1993年12月16日PCT公布。 公开号WO94 / 14873 日本1994年7月7日描述了含有氨基的化合物和交联剂的水溶性缩合产物,其可通过使(a)聚亚烷基多胺,聚酰胺胺,亚乙基 - 亚胺接枝的聚酰胺胺,聚醚胺及其混合物与(b)单烯属不饱和羧酸 单烯属不饱和羧酸的酸,盐,酯,酰胺或腈,氯代羧酸和/或缩水甘油化合物如缩水甘油酸,缩水甘油酰胺或缩水甘油酯,和(c)至少双官能交联剂,其具有卤代醇,缩水甘油基,氮丙啶或 异氰酸酯单元或卤素原子作为官能团,在20℃的20重量%水溶液中形成粘度为至少100mPas的水溶性缩合产物,通过以下步骤制备水溶性缩合产物: 使上述(a),(b)和(c)组的化合物反应,并使用缩合产物作为引流剂,絮凝剂 d造纸中的助留剂。

    Modified melamine-formaldehyde resins
    9.
    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

    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。