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1. 发明授权

US5037927A Vinylamine copolymer and process for producing same 失效
标题翻译：乙烯胺共聚物及其制备方法
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。

2. 再颁专利

USRE34903E Vinylamine copolymer, flocculating agent and paper strength increasing agent using the same, as well as process for producing the same 失效
标题翻译：乙烯胺共聚物，絮凝剂和使用其的纸强度增加剂，以及其制备方法
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。

3. 发明授权

US4808683A Vinylamine copolymer, flocculating agent using the same, and process for preparing the same 失效
标题翻译：乙烯胺共聚物，使用其的絮凝剂及其制备方法
公开(公告)号：US4808683A
公开(公告)日：1989-02-28
申请号：US62755
申请日：1987-06-16
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 , C08F226/02
CPC分类号： C08F8/12 , C08F2810/50
摘要： Disclosed herein is a vinylamine copolymer having the structural units represented by the general formulae (I), (II) and (III): ##STR1## (wherein X represents an anion or hydroxyl ion) ##STR2## (wherein R.sup.1 represents hydrogen atom or a methyl group, R.sup.2 represents hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and R.sup.3 represents an alkyl group having 1 to 4 carbon atoms or an oxoalkyl group having 4 to 8 carbon atoms) 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 5 to 85% by mole, and the molar fraction of the structural unit (III) is 90 to 5% by mole, a flocculating agent, a drainage aid and a paper strength increasing agent using such vinylamine copolymer, and a process for producing such vinylamine copolymer.
摘要翻译：本文公开了具有由通式（I），（II）和（III）表示的结构单元的乙烯基胺共聚物：其中X表示阴离子或羟基离子。（II）（III）（式中，R 1表示氢原子或甲基，R 2表示氢原子或碳原子数1〜4的烷基，R 3表示碳原子数1〜4的烷基或碳原子数4〜 8个碳原子），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5〜85摩尔％，结构单元（I）的摩尔分数（III）为90〜5摩尔％，絮凝剂，引流助剂和使用这种乙烯胺共聚物的纸强度增加剂，以及这种乙烯基胺共聚物的制造方法。

4. 再颁专利

USRE34713E Vinylamine copolymer flocculating agent etc. 失效
公开(公告)号：USRE34713E
公开(公告)日：1994-08-30
申请号：US946530
申请日：1992-09-16
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： C08F220/48 , B01D21/01 , C02F1/54 , C08F8/12 , C08F8/44 , C08F20/52 , C08F26/00 , C08F26/02 , C08F220/04 , C08F220/06 , C08F220/42 , C08F220/56 , C08F220/58 , C08F226/00 , C08F226/02 , D21H17/34 , D21H17/36 , D21H17/37 , D21H17/43 , D21H17/45 , D21H17/56
CPC分类号： C02F1/54 , C08F226/00 , C08F226/02 , C08F8/44 , D21H17/34 , D21H17/37 , D21H17/375 , D21H17/43 , D21H17/455 , C08F2810/50
摘要： .[.Disclosed herein is a vinylamine copolymer having the structural units represented by the following formulas (I), (II), (III), (IV) and (V): ##STR1## wherein X.sup..crclbar. represents an anion or hydroxyl ion, R represents a hydrogen atom or a methyl group, M.sup..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) is 0 to 8% by mole which is based on the total content of the structural units (III), (IV) and (V), a flocculating agent and a paper strength increasing agent using the vinylamine copolymer, and a process for producing the vinylamine copolymer..]..Iadd.Disclosed herein is a vinylamine copolymer comprising structural units represented by the following formulas: ##STR2##.Iaddend. wherein X.sup..crclbar. represents an anion or hydroxyl ion, R represents a hydrogen atom or a methyl group, M.sup..sym. represents a hydrogen ion or a monovalent cation, in which the molar fraction of the structural unit (A) is 5 to 85% by mole, the molar fraction of the structural unit (B) is 2 to 85% by mole, the molar fraction of the structural unit (C) is 5 to 80% by mole, all of said molar fractions being based on the vinylamine copolymer, and the molar fraction of the structural unit (D) is 0 to 20% by mole which is based on the total content of the structural units (C) and (D), wherein the total of the molar fractions of all structural units of the vinylamine copolymer is equal to 100%.

5. 发明授权

US5064909A Vinylamine copolymer, flocculating agent and paper strength increasing agent using the same, as well as process for producing the same 失效
标题翻译：乙烯胺共聚物，絮凝剂和纸张强度增加使用它的试剂，以及其生产方法
公开(公告)号：US5064909A
公开(公告)日：1991-11-12
申请号：US564042
申请日：1990-08-07
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： C08F220/48 , B01D21/01 , C02F1/54 , C08F8/12 , C08F8/44 , C08F20/52 , C08F26/00 , C08F26/02 , C08F220/04 , C08F220/06 , C08F220/42 , C08F220/56 , C08F220/58 , C08F226/00 , C08F226/02 , D21H17/34 , D21H17/36 , D21H17/37 , D21H17/43 , D21H17/45 , D21H17/56
CPC分类号： C02F1/54 , C08F226/00 , C08F226/02 , C08F8/44 , D21H17/34 , D21H17/37 , D21H17/375 , D21H17/43 , D21H17/455 , C08F2810/50
摘要： Disclosed herein is a vinylamine copolymer having the structural units represented by the following formulas (I), (II), (III), (IV) and (V): ##STR1## wherein x.sup..crclbar. represents an anion or hydroxyl ion, R represents a hydrogen atom or a methyl group, M.sup..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) is 0 to 8% by mole which is based on the total content of the structural units (III), (IV), and (V), a flocculating agent and a paper strength increasing agent using the vinylamine copolymer, and a process for producing the vinylamine copolymer.

6. 发明授权

US4957977A Vinylamine copolymer, flocculating agent etc. 失效
标题翻译：乙烯胺共聚物，絮凝剂等
公开(公告)号：US4957977A
公开(公告)日：1990-09-18
申请号：US470395
申请日：1990-01-25
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： C08F220/48 , B01D21/01 , C02F1/54 , C08F8/12 , C08F8/44 , C08F20/52 , C08F26/00 , C08F26/02 , C08F220/04 , C08F220/06 , C08F220/42 , C08F220/56 , C08F220/58 , C08F226/00 , C08F226/02 , D21H17/34 , D21H17/36 , D21H17/37 , D21H17/43 , D21H17/45 , D21H17/56
CPC分类号： C02F1/54 , C08F226/00 , C08F226/02 , C08F8/44 , D21H17/34 , D21H17/37 , D21H17/375 , D21H17/43 , D21H17/455 , C08F2810/50
摘要： Disclosed herein is a vinylamine copolymer having the structural units represented by the following formulas (I), (II), (III), (IV) and (V): ##STR1## wherein X.sup..crclbar. represents an anion or hydroxyl ion, R represents a hydrogen atom or a methyl group, M.sup..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) is 0 to 8% by mole which is based on the total content of the structural units (III), (IV) and (V), a flocculating agent and a paper strength increasing agent using the vinylamine copolymer, and a process for producing the vinylamine copolymer.

7. 发明授权

US5494746A Acrylic fiber and process for producing the same 失效
标题翻译：丙烯酸纤维及其制造方法
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。

8. 发明授权

US4567300A Process for producing N-substituted formamides 失效
标题翻译： N-取代甲酰胺的制备方法
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。

9. 发明授权

US5389203A Paper-making additives comprising cationic polymers 失效
标题翻译：包含阳离子聚合物的造纸添加剂
公开(公告)号：US5389203A
公开(公告)日：1995-02-14
申请号：US115917
申请日：1993-09-01
申请人： Shigeru Sawayama , Kohichi Satoh , Shin-ichi Sato , Toshiaki Sakakihara
发明人： Shigeru Sawayama , Kohichi Satoh , Shin-ichi Sato , Toshiaki Sakakihara
IPC分类号： C08F8/12 , C08F8/44 , C08F8/48 , D21H17/34 , D21H17/37 , D21H17/45 , D21H21/10 , D21H21/14 , D21H21/18 , D21H27/00
CPC分类号： D21H21/10 , C08F8/44 , D21H17/37 , D21H17/455 , D21H21/18
摘要： Disclosed herein is a paper-making additive.comprising a specified cationic polymer having an amidine structure. The cationic polymer additive for paper-making according to the present invention has 20 to 90% by mole of units represented by the formula (1) and/or (2): ##STR1## wherein R.sup.1 and R.sup.2 independently denote a hydrogen atom or a methyl group, and X- denotes an anion; and has 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 additives are excellent in improving paper or pulp properties, such as freeness, filler retention and paper strength.
摘要翻译：本文公开的是具有脒结构的指定阳离子聚合物的造纸添加剂。根据本发明的用于造纸的阳离子聚合物添加剂具有由式（1）和/或（2）表示的单元的20至90摩尔％：其中R1 R2独立地表示氢原子或甲基，X表示阴离子。并且在25℃下在1N盐水溶液中测得0.1至10dl / g的比浓粘度为0.1g / dl。添加剂在改善纸浆或纸浆性能方面是优异的，例如游离度，填料保留性和纸张强度。

10. 发明授权

US5554792A N-vinylformamide compositions 失效
标题翻译： N-乙烯基甲酰胺组合物
公开(公告)号：US5554792A
公开(公告)日：1996-09-10
申请号：US421018
申请日：1995-04-13
申请人： Shigeru Sawayama , Kohichi Satoh
发明人： Shigeru Sawayama , Kohichi Satoh
IPC分类号： C07C231/22 , C07C233/03 , C07C233/09 , C08F26/00 , C08F26/02 , C09K15/08 , C09K15/18 , C09K15/30 , C07C209/90 , C07C233/01
CPC分类号： C07C233/09 , C07C231/22
摘要： Disclosed herein is an N-vinylformamide composition comprising 250 ppm by weight or less of formic acid based on N-vinylformamide.According to the invention, the purity and polymerizing activity of N-vinylformamide are preserved for a long time.
摘要翻译：本文公开了包含基于N-乙烯基甲酰胺的250重量ppm或更少的甲酸的N-乙烯基甲酰胺组合物。根据本发明，N-乙烯基甲酰胺的纯度和聚合活性长时间保存。

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