Amphoteric and anionic polymer dispersions, process for their
preparation and use thereof
    1.
    发明授权
    Amphoteric and anionic polymer dispersions, process for their preparation and use thereof 失效
    两性和阴离子聚合物分散体,其制备方法和用途

    公开(公告)号:US5925722A

    公开(公告)日:1999-07-20

    申请号:US737782

    申请日:1996-11-25

    摘要: A process for producing an amphoteric aqueous polymer dispersion by two-step radical copolymerization includes (a) decomposing a starch by treatment with an enzyme or acid hydrolysis to provide a starch solution composed of decomposed starch and/or derivatives thereof having an average molecular weight ranging from 500 to 2000 g/mole and with the starch solution having an internal viscosity

    摘要翻译: PCT No.PCT / EP96 / 01193 Sec。 371日期:1996年11月25日 102(e)日期1996年11月25日PCT 1996年3月20日PCT公布。 公开号WO96 / 30420 PCT 日期:1996年10月3日通过两步自由基共聚制备两性聚合物水性分散体的方法包括:(a)通过酶或酸水解处理来分解淀粉,得到由分解的淀粉和/或其衍生物组成的淀粉溶液, 平均分子量范围为500-2000g / mol,淀粉溶液的内部粘度<0.1dl / g; (b)使含有至多30重量%的阴离子特征的单体(单体A)的烯键式不饱和单体聚合,所述单体混合物在选自烯属不饱和碳酸,磺酸和膦酸的存在下,存在至多40重量% 的淀粉溶液,其中淀粉与单体混合物的重量比范围为20:1至1:20,并且如此获得的阴离子聚合物分散体具有15至45重量%的固体含量并具有zeta电位范围 从-3到-70 mV; 和(c)使步骤(b)的分散体与含有烯属不饱和单体和至多35重量%阳离子特征的单体(单体B)的另一单体混合物聚合,步骤(b)的分散体之间的重量比 而另一种单体的范围为10:1至1:10。

    Method for increasing the absorption rate of paper
    2.
    发明授权
    Method for increasing the absorption rate of paper 失效
    提高纸张吸收率的方法

    公开(公告)号:US4632730A

    公开(公告)日:1986-12-30

    申请号:US727737

    申请日:1985-04-29

    CPC分类号: D21H17/14 D21H17/07

    摘要: Paper, especially wet- or dry-creped paper, is manufactured with a high rate of absorption of aqueous media by using carboxylic acid esters of carboxylic acids with 8 to 30 carbon atoms and at least one of ethoxylated and/or propoxylated primary and/or secondary alcohols with 12 to 40 C atoms, ethoxylated and/or propoxylated alkyl phenols, ethoxylated and/or propoxylated amines, and ethoxylated and/or propoxylated amides, with a degree of ethoxylation or propoxylation of 3 to 50; and/or by using polyethers obtained from the reaction of long-chain epoxides with 8 to 30 carbon atoms and at least one of ethoxylated and/or propoxylated primary and/or secondary alcohols with 12 to 40 C atoms, ethoxylated and/or propoxylated alkyl phenols, ethoxylated and/or propoxylated amines, and ethoxylated and/or propoxylated amides, with a degree of ethoxylation or propoxylation of 3 to 50.

    摘要翻译: 通过使用具有8至30个碳原子的羧酸的羧酸酯和至少一种乙氧基化和/或丙氧基化的伯和/或丙氧基化的主要和/或其中的至少一种,纸,特别是湿或干绉纸被制造成具有高水性介质的吸收率 具有12至40个C原子的仲醇,乙氧基化和/或丙氧基化烷基酚,乙氧基化和/或丙氧基化胺,以及乙氧基化或丙氧基化度为3至50的乙氧基化和/或丙氧基化酰胺; 和/或通过使用由具有8至30个碳原子的长链环氧化物和至少一种具有12至40个C原子的乙氧基化和/或丙氧基化伯和/或仲醇的反应获得的聚醚,乙氧基化和/或丙氧基化烷基 酚,乙氧基化和/或丙氧基化胺,和乙氧基化和/或丙氧基化酰胺,其乙氧基化度或丙氧基化度为3-50。

    Hydrolysis-resistant aliphatic polyester amides, their production and use
    3.
    发明授权
    Hydrolysis-resistant aliphatic polyester amides, their production and use 有权
    耐水解脂肪族聚酯酰胺,其生产和使用

    公开(公告)号:US06268465B1

    公开(公告)日:2001-07-31

    申请号:US09091306

    申请日:1999-04-12

    IPC分类号: C08G6944

    CPC分类号: C09D177/12 C08G69/44

    摘要: An aliphatic polyester amide which is hydrolysis-resistant includes a ternary polycondensation product of monomeric constituents composed of a monomeric constituent A which is at least one diol having a general formula: HO—R1—OH, where R1 is an aliphatic residue having 2-16 carbon atoms; a monomeric constituent B which is at least one dicarboxylic acid having a general formula: HOOC—R2—COOH, where R2 is an aliphatic residue having 1-14 carbon atoms; and a monomeric constituent C which is at least one diamine having a general formula: H2N—R3—NH2, where R3 is an aliphatic residue having 2-16 carbon atoms and is present in an amount of up to about 5% by weight based on total weight of the monomeric constituents, wherein polycondensation proceeds in the presence of a catalyst comprised of constituent D, which is a metal-containing catalyst, in combination with constituent E, which is at least one of an organic phosphorus compound and an inorganic phosphorus compound, and wherein the ternary polycondensation product is subsequently treated with constituent F, a multivalent isocyanate compound, at a temperature reduced to about 150° C. or less for a maximum of 10 minutes so that the aliphatic polyester amide has chain terminations which are partially isocyanate-terminated and so that the ternary polycondensation product has a viscosity of at least 50,000 cPs as measured by an automatic Ubbelohde Viskosimeter in xylene at 25° C.

    摘要翻译: 耐水解的脂肪族聚酯酰胺包括由单体成分A组成的单体成分的三元缩聚产物,该单体成分为至少一种具有以下通式的二醇:HO-R 1 -OH,其中R 1为具有2-16个 碳原子 至少一种具有以下通式的二羧酸的单体组分B:HOOC-R2-COOH,其中R2是具有1-14个碳原子的脂族残基; 和具有以下通式的至少一种二胺的单体组分C:其中R 3是具有2-16个碳原子的脂肪族残基,其存在量最多为约5重量%,基于 单体组分的总重量,其中在由作为含金属催化剂的组分D组成的催化剂存在下进行缩聚,与作为有机磷化合物和无机磷化合物中的至少一种的组分E组合 ,其中三元缩聚产物随后用降低至约150℃或更低的温度的组分F,多价异氰酸酯化合物处理最多10分钟,使得脂族聚酯酰胺具有链端部分,其为部分异氰酸酯 并且使得三元缩聚产物具有至少50,000cPs的粘度,通过自动Ubbelohde Viskosimeter在二甲苯中在25℃下测量。

    Process for the de-inking of printed waste paper
    6.
    发明授权
    Process for the de-inking of printed waste paper 失效
    印刷废纸脱墨的工艺

    公开(公告)号:US4586982A

    公开(公告)日:1986-05-06

    申请号:US644655

    申请日:1984-08-27

    IPC分类号: D21C5/02

    CPC分类号: D21C5/027 Y02W30/648

    摘要: There is disclosed an improvement to the process for the de-inking of printed waste paper which comprises (1) treating the waste paper in a pulper at an alkaline pH with alkali silicate, an oxidatively active bleaching agent, one or more acid components selected from the group consisting of fatty acids and resinic acids containing more than 10 carbon atoms, and mixtures thereof, and a dispersing agent, and (2) separating the detached printing ink particles from the fiber suspension by either flotation, washing, or a combination thereof. The improvement comprises employing the acid and the dispersing agent in the form of an oil-in-water emulsion.

    摘要翻译: 公开了对印刷废纸的脱墨方法的改进,其包括(1)用碱性硅酸盐,氧化活性漂白剂,一种或多种酸成分在碱性pH下处理碎纸机中的废纸, 由脂肪酸和含有10个以上碳原子的树脂酸组成的组,以及它们的混合物和分散剂,和(2)通过浮选,洗涤或其组合将脱模的印刷油墨颗粒与纤维悬浮液分离。 该改进包括以水包油乳液的形式使用酸和分散剂。