公开(公告)号：US4783270A

公开(公告)日：1988-11-08

申请号：US115160

申请日：1987-10-30

申请人： Yoshikazu Murao ,  Shigeru Sawayama ,  Kenji Mori

发明人： Yoshikazu Murao ,  Shigeru Sawayama ,  Kenji Mori

IPC分类号： B01D21/01 ,  C02F1/54 ,  C02F1/56 ,  C08F20/00 ,  C08F20/52 ,  C08F220/58 ,  C09K3/00

CPC分类号： C02F1/54 ,  Y10S210/907

摘要： Disclosed herein are a coagulant for minute mineral particles in suspension, comprising a copolymer of 0.5 to 10 mol % of 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, 40 to 99.5 mol % of N-hydroxymethylacrylamide and 0 to 59.5 mol % of acrylamide and showing a reduced viscosity of 10 to 30 dl/g in an aqueous 1N solution of sodium chloride at a temperature of 25.degree. C. and a concentration of the copolymer of 0.1 g/dl therein, and a method for coagulating the minute mineral particles in a suspension, comprising adding the coagulant a neutral waste water.

摘要翻译： 本文公开了一种用于悬浮液中的微小矿物颗粒的凝结剂，其包含0.5至10摩尔％的2-丙烯酰胺基-2-甲基丙磺酸或其盐，40至99.5摩尔％的N-羟甲基丙烯酰胺和0至59.5摩尔％ 的丙烯酰胺，并且在1N氯化钠水溶液中在25℃的温度和共聚物的浓度为0.1g / dl的浓度下显示10至30dl / g的比浓粘度，以及使分钟 悬浮液中的矿物颗粒，包括将絮凝剂加入中性废水中。

公开(公告)号：US4567300A

公开(公告)日：1986-01-28

申请号：US690252

申请日：1985-01-10

申请人： Yoshikazu Murao ,  Shigeru Sawayama ,  Kohichi Satoh

发明人： Yoshikazu Murao ,  Shigeru Sawayama ,  Kohichi Satoh

IPC分类号： C07C231/22 ,  C07C233/18 ,  C07C103/127

CPC分类号： C07C231/22 ,  C07C233/18

摘要： Disclosed herein is a process for producing N-substituted formamide represented by the formula: ##STR1## wherein R represents a hydrogen atom or a residual radical of a primary or secondary alcohol, comprising the steps of reacting formamide with acetaldehyde in the presence of a basic catalyst and if required, further reacting the thus formed product, N-(.alpha.-hydroxyethyl)formamide, with a primary or secondary alcohol in the presence of an acid catalyst.

摘要翻译： 本文公开了一种制备由下式表示的N-取代甲酰胺的方法：其中R表示氢原子或伯醇或仲醇的残余基团，包括以下步骤：使甲酰胺与乙醛在碱存在下反应 催化剂，如果需要，在酸催化剂存在下，使如此形成的产物N-（α-羟乙基）甲酰胺与伯醇或仲醇进一步反应。

公开(公告)号：US4824913A

公开(公告)日：1989-04-25

申请号：US46382

申请日：1987-05-06

申请人： Yoshikazu Murao ,  Shigeru Sawayama ,  Kohichi Satoh

发明人： Yoshikazu Murao ,  Shigeru Sawayama ,  Kohichi Satoh

IPC分类号： C08F8/12 ,  C08F8/44 ,  C08J3/12 ,  C08F8/10

CPC分类号： C08J3/12 ,  C08F8/44 ,  C08J2339/00

摘要： Disclosed herein is a process for preparing a water-soluble polymer, which comprises granulating a hydrous gel-like polymer obtained by polymerizing N-vinylformamide in the form of an aqueous solution of which a monomer concentration is 20 to 60% by weight, dispersing the formed polymer particles in methanol and contacting them with an aqueous solution of ammonium salt of a monovalent acid in an amount of 1 to 200% by mole based on the formamide groups in said polymer, thereby partially modifying the formamide groups in the polymer.

摘要翻译： 本文公开了一种制备水溶性聚合物的方法，其包括将通过以单体浓度为20至60重量％的水溶液的形式聚合N-乙烯基甲酰胺而获得的含水凝胶状聚合物，将 在甲醇中形成聚合物颗粒，并与基于所述聚合物中的甲酰胺基团的1至200摩尔％的量的一价酸的铵盐水溶液接触，从而部分改性聚合物中的甲酰胺基团。

公开(公告)号：US5512645A

公开(公告)日：1996-04-30

申请号：US343640

申请日：1994-11-22

申请人： Shigeru Sawayama ,  Yasuharu Mori ,  Yukino Nagai

发明人： Shigeru Sawayama ,  Yasuharu Mori ,  Yukino Nagai

IPC分类号： C08F8/48 ,  C08F226/02 ,  C08F226/06 ,  C08F220/06 ,  C08F220/10 ,  C08F220/56 ,  C08F228/02

CPC分类号： C08F226/02 ,  C08F8/48

摘要： There is provided a lactam ring-containing polymer comprising: 20 to 100 molar % of a structural unit represented by the general formula (1); 0 to 70 molar % of a structural unit represented by the general formula (2); and 0 to 70 molar % of a structural unit represented by the general formula (3) and/or a structural unit represented by the general formula (4): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each represents a hydrogen atom or a methyl group, and X represents COOR.sup.4 and/or CONR.sup.5 R.sup.6 in which R.sup.4, R.sup.5 and R.sup.6 each represents a hydrogen atom or a C1-C4 alkyl.The polymer is excellent in heat resistance and is expected to be used for resin modifiers, polymeric additives for petroleum tertiary recovery, and other various applications.

摘要翻译： 提供含有内酰胺环的聚合物，其包含：20-100摩尔％的由通式（1）表示的结构单元; 0〜70摩尔％的由通式（2）表示的结构单元; （3）表示的结构单元和/或由通式（4）表示的结构单元为0〜70摩尔％。＆lt; IMAGE＆gt;（2）＆lt; IMAGE＆gt; （4）其中R1，R2和R3各自表示氢原子或甲基，X表示COOR4和/或CONR5R6，其中R4，R5和R6各自表示氢原子或C1-C4烷基。 聚合物的耐热性优异，并且预期用于树脂改性剂，用于石油三级回收的聚合物添加剂和其它各种应用。

公开(公告)号：US5037927A

公开(公告)日：1991-08-06

申请号：US231604

申请日：1988-08-10

申请人： Takaharu Itagaki ,  Mitsuaki Shiraga ,  Shigeru Sawayama ,  Kohichi Satoh

发明人： Takaharu Itagaki ,  Mitsuaki Shiraga ,  Shigeru Sawayama ,  Kohichi Satoh

IPC分类号： B01D21/01 ,  C02F1/54 ,  C08F2/04 ,  C08F4/04 ,  C08F8/00 ,  C08F20/26 ,  C08F26/00 ,  C08F220/10 ,  C08F220/12 ,  C08F220/28 ,  C08F226/02 ,  D21H17/34 ,  D21H17/37 ,  D21H17/47

CPC分类号： D21H17/37 ,  C02F1/54 ,  C08F226/02 ,  C08F8/00 ,  D21H17/34

摘要： Disclosed herein are an N-vinylformamide copolymer having the structural units represented by the following formulas (I) and (II): ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group and R.sub.2 represents an alkyl group of 1 to 4 carbon atoms, in which the molar ratio between the structural units (I) and (II) is from 20:80 to 95:5, and a process for producing the N-vinylformamide copolymer.

摘要翻译： 本文公开了具有由下式（I）和（II）表示的结构单元的N-乙烯基甲酰胺共聚物：其中R 1表示氢原子或甲基，R 2表示 1〜4个碳原子的烷基，其结构单元（I）和（II）之间的摩尔比为20:80〜95:5，以及N-乙烯基甲酰胺共聚物的制造方法。

公开(公告)号：US5494746A

公开(公告)日：1996-02-27

申请号：US227580

申请日：1994-04-14

申请人： Mitsuaki Shiraga ,  Hiroyshi Okada ,  Shigeru Sawayama ,  Yukino Yamada

发明人： Mitsuaki Shiraga ,  Hiroyshi Okada ,  Shigeru Sawayama ,  Yukino Yamada

IPC分类号： D01F6/18 ,  D02G3/00

CPC分类号： D01F6/18 ,  Y10T428/29 ,  Y10T428/2904 ,  Y10T428/2913 ,  Y10T428/2929 ,  Y10T428/2964 ,  Y10T428/2967

摘要： An acrylic fiber has 99.9 to 85 mol % of acrylonitrile units, and 0.1 to 15 mol % of N-vinylcarboxylic acid amide units, wherein the latter unit may be modified. The fiber is excellent, e.g., in dyeing property and hygroscopicity, and can be readily converted into a functional fiber.

摘要翻译： 丙烯酸系纤维的丙烯腈单元为99.9〜85摩尔％，N-乙烯基羧酸酰胺单元为0.1〜15摩尔％，后者可以进行改性。 该纤维例如在染色性和吸湿性方面是优异的，并且可以容易地转化成功能纤维。

公开(公告)号：US5320712A

公开(公告)日：1994-06-14

申请号：US892434

申请日：1992-06-01

申请人： Shigeru Sawayama ,  Masato Nakajima

发明人： Shigeru Sawayama ,  Masato Nakajima

IPC分类号： C08F220/04 ,  C08F26/00 ,  C08F26/02 ,  C08F220/10 ,  C08F220/12 ,  C08F220/42 ,  C08F220/48 ,  C08F226/02 ,  D21H17/14 ,  D21H17/21 ,  D21H17/34 ,  D21H21/16

CPC分类号： D21H17/34

摘要： The present invention relates to a method for sizing of paper by using a particular vinylamine polymer as a size-fixing aid. By the use of the vinylamine polymer as a size-fixing aid, it has become possible to obtain a paper having superior sizing properties by papermaking at a pH around neutrality using a hitherto known acidic sizing agents without using a neutral sizing agent. The method of the present invention further has effects that operating efficiency of papermaking is greatly improved since contaminations of a papermaking machine due to a neutral agent can be avoided, and therefore, the prices of paper can be greatly lowered. The present method has further advantages when it is applied under acidic papermaking condition of a pH of less than 5.5. In such a condition, the addition amount of alum can be decreased and the life of a papermaking machine can be prolonged. In spite of a small amount of alum added, a considerably good sizing effect can be obtained by the present method.

摘要翻译： 本发明涉及通过使用特定的乙烯胺聚合物作为尺寸固定助剂来调整纸张的方法。 通过使用乙烯胺聚合物作为尺寸固定助剂，可以使用迄今为止已知的酸性施胶剂，而不使用中性施胶剂，通过造纸在中性附近的pH值获得优异的施胶性能的纸。 本发明的方法还具有可以避免造纸机由于中性剂引起的污染而大大提高造纸作业效率的效果，因此可以大大降低纸张的价格。 当其在pH小于5.5的酸性造纸条件下使用时，本方法具有进一步的优点。 在这种情况下，可以减少明矾的添加量，延长造纸机的使用寿命。 尽管添加了少量的明矾，但是通过本发明的方法可以获得相当好的施胶效果。

公开(公告)号：US5281340A

公开(公告)日：1994-01-25

申请号：US932208

申请日：1992-08-19

申请人： Shin-ichi Sato ,  Toshiaki Sakakihara ,  Shigeru Sawayama

发明人： Shin-ichi Sato ,  Toshiaki Sakakihara ,  Shigeru Sawayama

IPC分类号： C08F8/44 ,  C08F8/48 ,  C02F11/14

CPC分类号： C08F8/48 ,  C08F8/44 ,  Y10S524/922

摘要： Disclosed herein is a flocculating agent comprising a specified cationic polymer having an amidine structure. The cationic polymer flocculating agents according to the present invention have 20 to 90% by mole of a repeating amidine unit represented by the formula (1) and/or (2): ##STR1## The agents have a reduced viscosity of 0.1 to 10 dl/g as measured in a 1N saline solution of 0.1 g/dl at 25.degree. C.The agents have a remarkably excellent performance as flocculating agents, in particular for organic sludge.

摘要翻译： 本文公开了一种絮凝剂，其包含具有脒结构的特定的阳离子聚合物。 根据本发明的阳离子聚合物絮凝剂具有式（1）和/或（2）表示的重复脒单元的20〜90摩尔％：（*化学结构*）（1）（*化学结构* ）（2）试剂在25℃下在1N盐水溶液中的浓度为0.1〜10dl / g，浓度为0.1g / dl。该试剂具有非常优异的性能，特别是絮凝剂，特别是有机污泥 。

公开(公告)号：US4158726A

公开(公告)日：1979-06-19

申请号：US864871

申请日：1977-12-27

申请人： Osamu Kamada ,  Kenzoh Watanabe ,  Shigeru Sawayama

发明人： Osamu Kamada ,  Kenzoh Watanabe ,  Shigeru Sawayama

IPC分类号： C08F2/00 ,  C08F2/10 ,  C08F2/16 ,  C08F2/32 ,  C08F20/00 ,  C08F20/34 ,  C08F2/08 ,  C08F2/20 ,  C08F120/00 ,  C08F222/00

CPC分类号： C08F20/34 ,  Y10S526/909 ,  Y10S526/91 ,  Y10S526/923

摘要： Disclosed is a process for preparing a water-soluble bead polymer by dispersing drops of an aqueous solution of water-soluble vinyl monomer in a dispersing medium in the presence of a dispersion stabilizer, and polymerizing the monomer by using monomer selected from the following A and B(a) a compound of the general formula I ##STR1## wherein R.sup.1 is hydrogen or methyl, R.sup.2 and R.sup.3 may be the same or different and each is linear or branched alkyl of from 1 to 4 carbon atoms, R.sup.4 is hydrogen, linear or branched alkyl of from 1 to 8 carbon atoms, hydroxy alkyl of from 1 to 4 carbon atoms, or benzyl, Y is alkylene or hydroxyalkylene each of from 2 to 4 carbon atoms, and X.sup.- is an anion, or(B) a mixture of the compound of the formula I and a water-soluble vinyl monomer copolymerizable with the compound (I), and a cellulose ester or a cellulose ether insoluble in water but soluble in the dispersing medium is used as the dispersion stabilizer.

摘要翻译： 公开了一种通过在分散稳定剂的存在下将水溶性乙烯基单体的水溶液分散在分散介质中并通过使用选自以下A的单体和单体的聚合来制备水溶性珠粒聚合物的方法： B（A）通式I的化合物（I）其中R 1是氢或甲基，R 2和R 3可以相同或不同，并且各自是1至4个碳原子的直链或支链烷基，R4是 氢，1至8个碳原子的直链或支链烷基，1至4个碳原子的羟基烷基或苄基，Y是2至4个碳原子的亚烷基或羟基亚烷基，X-是阴离子，或（ B）式I化合物与可与化合物（I）共聚的水溶性乙烯基单体的混合物和不溶于水但可溶于分散介质的纤维素酯或纤维素醚用作分散稳定剂。

公开(公告)号：USRE34903E

公开(公告)日：1995-04-11

申请号：US148384

申请日：1993-11-08

申请人： Takaharu Itagaki ,  Mitsuaki Shiraga ,  Shigeru Sawayama ,  Kohichi Satoh

发明人： Takaharu Itagaki ,  Mitsuaki Shiraga ,  Shigeru Sawayama ,  Kohichi Satoh

IPC分类号： C08F8/12 ,  C08F8/44 ,  C08F226/02

CPC分类号： C08F226/02 ,  C08F8/12 ,  C08F8/44 ,  C08F2800/10 ,  C08F2810/50

摘要： Disclosed herein is a vinylamine copolymer having the structural units represented by the following formulas (I), (II), (III).[.,.]. .Iadd.and .Iaddend.(IV) .[.and (VI).].: ##STR1## wherein x.crclbar. represents an anion or hydroxyl ion R represents a hydrogen atom or a methyl group, M.sym. represents a hydrogen ion or a monovalent cation, in which the molar fraction of the structural unit (I) is 5 to 85% by mole, the molar fraction of the structural unit (II) is 2 to 85% by mole, the molar fraction of the structural unit (III) is 5 to 80% by mole,.[.the molar fraction of the structural unit (IV) is 0 to 40% by mole,.]. all of said molar fractions being based on the vinylamine copolymer, and the molar fraction of the structural unit .[.(V).]. (.Iadd.IV) is 0 to 8% by mole which is based on the total content of the structural units (III).[.,.]. .Iadd.and .Iaddend.(IV), .[.and (V),.]. a flocculating agent and a paper strength increasing agent using the vinylamine copolymer, and a process for producing the vinylamine copolymer.

摘要翻译： 本文公开了具有由下式（I），（II），（III）[和]和（IV）[和（VI）]表示的结构单元的乙烯基胺共聚物：表示阴离子或羟基离子R表示氢 原子或甲基，M（+）​​表示氢离子或一价阳离子，结构单元（I）的摩尔分数为5〜85摩尔％，结构单元（II）的摩尔分数为 2〜85摩尔％，结构单元（III）的摩尔分数为5〜80摩尔％[结构单元（IV）的摩尔分数为0〜40摩尔％]，所有摩尔分数 基于乙烯胺共聚物，结构单元[（V）]（IV）的摩尔分数为0-8％摩尔，其基于结构单元（III）[和]和（IV）的总含量 ），[和（V），]絮凝剂和使用该乙烯胺共聚物的纸强度增加剂，以及制备该乙烯基胺共聚物的方法。