Process for fixing disruptive substances in papermaking
    1.
    发明授权
    Process for fixing disruptive substances in papermaking 失效
    在造纸中固定破坏性物质的方法

    公开(公告)号:US5688371A

    公开(公告)日:1997-11-18

    申请号:US664768

    申请日:1996-06-18

    IPC分类号: C08G73/00 D21H21/02 D21H17/54

    CPC分类号: C08G73/00 Y10S162/04

    摘要: Process for fixing anionic interfering substances in papermaking process by the addition of cationic polycondensation products obtained by reacting a) a monofunctional or polyfunctional amine having one or more primary and/or secondary and/or tertiary amino groups with b) cyanamide, dicyandiamide, guanidine or biguanidine, wherein up to 50 mol. % of cyanamide, dicyandiamide or biguanidine may be replaced with a dicarboxylic acid or a mono- or diester thereof, with elimination of ammonia, optionally in the presence of a catalyst, optionally together with other auxiliaries.

    摘要翻译: 通过加入通过使a)具有一个或多个伯和/或仲和/或叔氨基的单官能或多官能胺与b)氰酰胺,双氰胺,胍或胍反应获得的阳离子缩聚产物来固定造纸工艺中的阴离子干扰物质的方法 双胍,其中高达50mol。 氨基氰,双氰胺或双胍的百分比可以用二羧酸或其单酯或二酯代替,任选在催化剂存在下,任选与其它助剂一起除去氨。

    Process for the production of cellulose-containing sheet-like structures
which have been given a dry strength and/or wet strength treatment
    3.
    发明授权
    Process for the production of cellulose-containing sheet-like structures which have been given a dry strength and/or wet strength treatment 失效
    已经进行干强度和/或湿强度处理的含纤维素的片状结构体的制造方法

    公开(公告)号:US5718804A

    公开(公告)日:1998-02-17

    申请号:US538315

    申请日:1995-10-03

    摘要: Process for the production of optionally wood-containing cellulose-containing sheet-like structures, such as paper, pasteboard and card, which have been given a dry strength and/or wet strength treatment and have improved whiteness, using water-dispersible isocyanates, wherein the water-dispersible isocyanates: a) are aliphatic, cycloaliphatic, araliphatic or aromatic isocyanates having an NCO functionality of 1.8 to 4.2, mixed with polyether-modified aliphatic, cycloaliphatic, araliphatic or aromatic isocyanates having an average NCO functionality of 0.8 to 3.2, b) the isocyanate mixtures a) contain 1 to 25% by weight of isocyanate groups, c) have a content of ethylene oxide units, arranged in the form of polyether chains of average molecular weight 10 to 3500 (number-average), of 20 to 60% by weight, based on the isocyanate mixture, and if appropriate d) have a content of tertiary amino groups and/or ammonium groups of 1 to 500 milliequivalents per 100 g of isocyanate mixture a).

    摘要翻译: 使用水分散性异氰酸酯制备任意含有木材的含纤维素的片状结构物,例如纸张,纸板和卡片,其已被赋予干强度和/或湿强度处理并且具有改善的白度,其中 水分散性异氰酸酯:a)具有NCO官能度为1.8至4.2的脂族,脂环族,芳脂族或芳族异氰酸酯,与具有0.8-3.2平均NCO官能度的聚醚改性的脂族,脂环族,芳脂族或芳族异氰酸酯混合,b )异氰酸酯混合物a)含有1至25重量%的异氰酸酯基团,c)具有以平均分子量为10至3500(数均)的聚醚链形式的环氧乙烷单元的含量为20至 60重量%,基于异氰酸酯混合物,如果合适,d)每100g异氰酸酯混合物a)具有1至500毫当量的叔氨基和/或铵基团的含量。

    Water-dispersible polyisocyanates
    4.
    发明授权
    Water-dispersible polyisocyanates 失效
    水分散性多异氰酸酯

    公开(公告)号:US6080831A

    公开(公告)日:2000-06-27

    申请号:US860144

    申请日:1997-06-19

    摘要: Cellulose-containing, optionally wood-containing materials which have been obtained using water-dispersible polyisocyanates which in turn have been prepared by reaction of the following starting components:a) modified polyisocyanates of the formula (I) ##STR1## in which: R.sup.1 denotes an aliphatic hydrocarbon radical having 2 to 18 carbon atoms; a cycloaliphatic hydrocarbon radical having 4 to 15 carbon atoms; an aromatic hydrocarbon radical having 6 to 15 carbon atoms or an araliphatic hydrocarbon radical having 8 to 15 carbon atoms,R.sup.2 denotes an aliphatic hydrocarbon radical which has 10 to 35 carbon atoms and optionally contains double bonds,R.sup.3 denotes a hydrocarbon radical which is at least divalent and can also be heterocyclic, with inclusion of the ester oxygen or amide nitrogen from X, ##STR2## where R.dbd.H or C.sub.1 -C.sub.4 -alkyl, or R is a constituent of a cyclic structure,n denotes a number .gtoreq.2 and y denotes a number .gtoreq.1,b) non-modified polyisocyanates,c) polyethylene oxide polyether alcohols optionally containing ester groups,d) optionally cycloaliphatic and/or aliphatic amines which optionally contain ether, ester or amide groups, have at least one functional group which is reactive towards isocyanates and contain at least one tertiary amino group and/or ammonium group.

    摘要翻译: PCT No.PCT / EP95 / 04868 Sec。 371日期:1997年6月19日 102(e)日期1997年6月19日PCT提交1995年12月11日PCT公布。 公开号WO96 / 20309 日期1996年7月4日使用水分散性多异氰酸酯获得的含有纤维素的任选的含木材料,其又通过以下起始组分的反应制备:a)式(I)的改性多异氰酸酯,其中: R1表示碳原子数2〜18的脂肪族烃基; 具有4至15个碳原子的脂环族烃基; 具有6至15个碳原子的芳族烃基或具有8至15个碳原子的芳脂族烃基,R 2表示具有10至35个碳原子并且任选地包含双键的脂族烃基,R 3表示至少为 二价并且也可以是杂环,其中R是H或C 1 -C 4 - 烷基,或者R是环状结构的组成,X包括酯氧或酰胺氮,其中n表示数字≥2且Y 表示数值> / = 1,b)未改性的多异氰酸酯,c)任选地含有酯基的聚环氧乙烷聚醚醇,d)任选地含有醚,酯或酰胺基的脂环族和/或脂族胺,具有至少一个官能 对异氰酸酯反应并含有至少一个叔氨基和/或铵基的基团。

    Use of polyaspartic acid amides as leather auxiliary products
    10.
    发明授权
    Use of polyaspartic acid amides as leather auxiliary products 失效
    使用聚天冬氨酸酰胺作为皮革辅助产品

    公开(公告)号:US5885474A

    公开(公告)日:1999-03-23

    申请号:US11241

    申请日:1998-01-28

    IPC分类号: C08G73/10 C14C9/00

    摘要: Leather can be pretreated to obtain good body, soft feel, and excellent grain smoothness and solidity with products having a molecular weight of 700 to 30,000 and which are obtainable by reaction ofA. polysuccinimide having a molecular weight, determined as the number-average, of 500 to 10,000, withB. 5 to 90 mol % based on the succinimide units of polysuccinimide A, and/or secondary amine, the nitrogen substituents of which contain 1 to 60 carbon atoms and which can be unsubstituted or substituted, at least 2.5 mol % of the nitrogen substituents of the amine containing at least 12 carbon atoms,C. optionally, (i) derivatives of C.sub.1 -C.sub.18 -monocarboxylic acids, C.sub.2 -C.sub.10 -dicarboxylic acids, and/or (ii) monoisocyanates, diisocyanates epichlorohydrin (for reaction of amino and/or hydroxyl groups on the nitrogen substituents of the reaction product of A and B), andD. 95 to 10 mol % of ring-opening base in the presence of water.

    摘要翻译: PCT No.PCT / EP96 / 03241 Sec。 371日期1998年1月28日 102(e)1998年1月28日PCT PCT 1996年7月23日PCT公布。 公开号WO97 / 06279 日期1997年2月20日可以预处理具有分子量为700〜30,000的产品的良好的身体,柔软的手感和良好的颗粒光滑度和稳定性,并且可以通过将分子量为A的聚琥珀酰亚胺 数均分子量为500〜10000,B为5〜90摩尔%,基于琥珀酰亚胺单元的聚琥珀酰亚胺A,和/或仲胺,其氮取代基含有1〜60个碳原子,可以是未取代的或 至少2.5mol%含有至少12个碳原子的胺的氮取代基,C.任选地,(i)C 1 -C 18 - 一元羧酸的衍生物,C 2 -C 10 - 二羧酸和/或(ii) 单异氰酸酯,二异氰酸酯表氯醇(用于在A和B的反应产物的氮取代基上的氨基和/或羟基的反应)和D.95至10摩尔%的开环碱在水的存在下反应。