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公开(公告)号：US06797783B1
公开(公告)日：2004-09-28
申请号：US08941132
申请日：1997-09-30
IPC分类号： C08F25506
CPC分类号： C08C19/06 , C08F253/00 , C08L51/04 , C08L2666/02
摘要： A modified natural rubber is disclosed, which is obtained by modifying a deproteinized natural rubber having a nitrogen content of less than 0.10% by weight. A process for improving the graft ratio and the graft efficiency of natural rubber and a process for improving the epoxidation ratio of natural rubber are also disclosed. The modified natural rubber of the present invention has a high modifying efficiency and thus shows an excellent modifying effect. It is also useful as a means for preventing allergy.
摘要翻译： 公开了通过改性氮含量低于0.10重量％的脱蛋白天然橡胶而得到的改性天然橡胶。 还公开了改善天然橡胶的接枝率和接枝效率的方法以及改善天然橡胶的环氧化比例的方法。 本发明的改性天然橡胶具有高的改性效果，因此显示出优异的改性效果。 它也可用作防止过敏的手段。
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公开(公告)号：US5610212A
公开(公告)日：1997-03-11
申请号：US241989
申请日：1994-05-13
摘要： A means for stabilizing a deproteinized natural rubber latex is disclosed, comprising adding a stabilizer selected from the group consisting of (a) an anionic surfactant, (b) an amphoteric surfactant, (c) a nonionic surfactant, (d) a nonionic or amphoteric oligomer or polymer, and (e) an anionic oligomer or polymer. By adding the stabilizer, the mechanical stability of a deproteinized natural rubber latex can be markedly improved.
摘要翻译： 公开了一种用于稳定脱蛋白天然橡胶胶乳的方法，包括加入选自（a）阴离子表面活性剂，（b）两性表面活性剂，（c）非离子表面活性剂，（d）非离子或两性 低聚物或聚合物，和（e）阴离子低聚物或聚合物。 通过添加稳定剂，可以显着提高脱蛋白天然橡胶胶乳的机械稳定性。
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公开(公告)号：US5585459A
公开(公告)日：1996-12-17
申请号：US241714
申请日：1994-05-12
摘要： A process for producing raw rubber from a deproteinized natural rubber is disclosed, which comprises coagulating rubber particles in the deproteinized natural rubber latex by: (1) adding a nonionic surfactant having a cloud point of from 20.degree. to 100.degree. C. and a molecular weight of 300 or more to the deproteinized natural rubber latex and heating the latex to a temperature not lower than the cloud point of the nonionic surfactant; or (2) adding a coagulation assistant selected from the group consisting of: (a) an anionic surfactant, (b) an amphoteric surfactant, (c) a nonionic surfactant, (d) a nonionic or amphoteric oligomer or polymer, and (e) an anionic oligomer or polymer, to the deproteinized natural rubber latex; and then recovering the coagulated rubber particles. According to the process of the present invention, raw rubber containing substantially no metal ion can be produced with a high efficiency.
摘要翻译： 公开了一种从脱蛋白天然橡胶生产生橡胶的方法，其包括：通过以下步骤将脱蛋白天然橡胶胶乳中的橡胶颗粒凝结：（1）加入浊点为20至100℃的非离子表面活性剂和分子 重量为300以上的脱蛋白天然橡胶胶乳，并将胶乳加热至不低于非离子表面活性剂的浊点的温度; 或（2）加入选自以下的凝血助剂：（a）阴离子表面活性剂，（b）两性表面活性剂，（c）非离子表面活性剂，（d）非离子或两性低聚物或聚合物，和 ）阴离子低聚物或聚合物; 然后回收凝固的橡胶颗粒。 根据本发明的方法，可以高效率地生产基本上不含金属离子的生橡胶。
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公开(公告)号：US06335407B1
公开(公告)日：2002-01-01
申请号：US08799363
申请日：1997-02-14
申请人： Yasuyuki Tanaka , Yuichi Hioki , Naoya Ichikawa
发明人： Yasuyuki Tanaka , Yuichi Hioki , Naoya Ichikawa
IPC分类号： C08F500
CPC分类号： C08C1/04 , Y10S528/931 , Y10S528/932
摘要： A deproteinized natural rubber substantially free from any protein and a process for producing the same which comprises treating a latex with a protease and a specific surfactant or a combination of specific surfactants and separating rubber particles are disclosed. A method for elevating the green strength of a natural rubber and a method for lowering the green strength of a natural rubber are also disclosed. Furthermore, a means for preventing allergy induced by natural rubber is also disclosed.
摘要翻译： 公开了一种基本上不含任何蛋白质的脱蛋白天然橡胶及其制备方法，其包括用蛋白酶和特定表面活性剂或特定表面活性剂和分离橡胶颗粒的组合处理胶乳。 还公开了提高天然橡胶的生坯强度的方法和降低天然橡胶的生坯强度的方法。 此外，还公开了一种防止由天然橡胶引起的变态反应的方法。
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5.发明授权Process for producing deproteinized natural rubber using protease and anionic surfactant 有权使用蛋白酶和阴离子表面活性剂生产脱蛋白天然橡胶的方法公开(公告)号：US06204358B1
公开(公告)日：2001-03-20
申请号：US09357077
申请日：1999-07-19
申请人： Yasuyuki Tanaka , Yuichi Hioki , Naoya Ichikawa
发明人： Yasuyuki Tanaka , Yuichi Hioki , Naoya Ichikawa
IPC分类号： C08C104
CPC分类号： C08C1/04 , Y10S528/932
摘要： A deproteinized natural rubber substantially free from any protein and a process for producing the same which comprises treating a latex with a protease and a specific surfactant or a combination of specific surfactants and separating rubber particles are disclosed. A method for elevating the green strength of a natural rubber and a method for lowering the green strength of a natural rubber are also disclosed. Furthermore, a means for preventing allergy induced by natural rubberis also disclosed.
摘要翻译： 公开了一种基本上不含任何蛋白质的脱蛋白天然橡胶及其制备方法，其包括用蛋白酶和特定表面活性剂或特定表面活性剂和分离橡胶颗粒的组合处理胶乳。 还公开了提高天然橡胶的生坯强度的方法和降低天然橡胶的生坯强度的方法。 此外，还公开了一种预防由天然橡胶引起的变态反应的方法。
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公开(公告)号：US06239253B1
公开(公告)日：2001-05-29
申请号：US09356523
申请日：1999-07-19
申请人： Yasuyuki Tanaka , Yuichi Hioki , Naoya Ichikawa
发明人： Yasuyuki Tanaka , Yuichi Hioki , Naoya Ichikawa
IPC分类号： C08C104
CPC分类号： C08C1/04 , Y10S528/932
摘要： A deproteinized natural rubber substantially free from any protein and a process for producing the same which comprises treating a latex with a protease and a specific surfactant or a combination of specific surfactants and separating rubber particles are disclosed. A method for elevating the green strength of a natural rubber and a method for lowering the green strength of a natural rubber are also disclosed. Furthermore, a means for preventing allergy induced by natural rubber is also disclosed.
摘要翻译： 公开了一种基本上不含任何蛋白质的脱蛋白天然橡胶及其制备方法，其包括用蛋白酶和特定表面活性剂或特定表面活性剂和分离橡胶颗粒的组合处理胶乳。 还公开了提高天然橡胶的生坯强度的方法和降低天然橡胶的生坯强度的方法。 此外，还公开了一种防止由天然橡胶引起的变态反应的方法。
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7.发明授权Process for preparing deproteinized natural rubber latex molding and deproteinizing agent for natural rubber latex 失效制备脱蛋白天然橡胶胶乳成型和天然橡胶胶乳脱蛋白的方法
公开(公告)号：US5910567A
公开(公告)日：1999-06-08
申请号：US913863
申请日：1997-12-19
申请人： Yasuyuki Tanaka , Shinichi Nakade , Atsuko Ochi , Toshiaki Sakaki , Masaharu Hayashi , Kazuhiro Sekiguchi , Akihito Kuga , Eiji Kanamaru
发明人： Yasuyuki Tanaka , Shinichi Nakade , Atsuko Ochi , Toshiaki Sakaki , Masaharu Hayashi , Kazuhiro Sekiguchi , Akihito Kuga , Eiji Kanamaru
CPC分类号： C08J3/244 , C08C1/04 , C08J5/00 , C08J5/02 , C08J2307/00 , Y10S524/925 , Y10S524/926 , Y10S528/932 , Y10S528/934 , Y10S528/935
摘要： A method for producing a formed product of deproteinized natural rubber latex capable of reducing a content of an allergen in a natural rubber latex material to a level sufficient to keep the latex from being harmful to the human body without decreasing yields of the product and deteriorating formability of the latex. In the method, cleaning removal of a non-rubber content is carried out after each of protein decomposition, prevulcanization and forming. An aqueous alkali solution, ammonia, water containing free chlorine in an amount of 0.005 to 0.02% by weight or alcohol-water mixed liquid containing alcohol in an amount of 5 to 80% by weight is used as cleaning liquid for the cleaning removal. The method is suitably applied to production of a natural rubber product such as a rubber glove, a condom, a catheter, a foam rubber material and the like.
摘要翻译： PCT No.PCT / JP96 / 00640 Sec。 371 1997年12月19日第 102（e）日期1997年12月19日PCT 1996年3月14日PCT公布。 公开号WO96 / 28500 PCT 日本1996年9月19日一种生产能够将天然橡胶胶乳材料中的变应原含量降低至足以使乳胶不会对人体有害的水平的脱蛋白天然橡胶胶乳的成形物的制造方法， 产品和乳胶的成型性变差。 在该方法中，在蛋白质分解，预硫化和成型中进行非橡胶含量的清洗除去。 使用碱性水溶液，氨，含有0.005〜0.02重量％游离氯的水，或含有5〜80重量％醇的醇 - 水混合液，作为清洗除去用清洗液。 该方法适用于橡胶手套，避孕套，导管，泡沫橡胶材料等天然橡胶制品的制造。
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公开(公告)号：US5856600A
公开(公告)日：1999-01-05
申请号：US740786
申请日：1996-11-01
申请人： Yasuyuki Tanaka , Toshiaki Sakaki , Atsuko Kawasaki , Masaharu Hayashi , Eiji Kanamaru , Kazuhiko Shibata
发明人： Yasuyuki Tanaka , Toshiaki Sakaki , Atsuko Kawasaki , Masaharu Hayashi , Eiji Kanamaru , Kazuhiko Shibata
摘要： Described is a process for the production of depolymerized natural rubber, which makes it possible to obtain, at high reaction efficiency, of depolymerized natural rubber in the liquid form and having a narrow molecular weight distribution; and also a process for the production of depolymerized natural rubber which is free from odor or coloring peculiar to natural rubber and is also free from the danger of immediate allergy derived from protein.The process according to the present invention comprises adding a carbonyl compound to a natural rubber latex, and then subjecting the resulting natural rubber to air oxidation in the presence of a radical forming agent or adding a carbonyl compound to the latex of deproteinized natural rubber and then subjecting the deproteinized natural rubber to air oxidation optionally in the presence of a radical forming agent.
摘要翻译： 描述了一种生产解聚天然橡胶的方法，其可以以高反应效率获得液体形式的解聚天然橡胶并具有窄的分子量分布; 还有一种天然橡胶不含气味或着色的解聚天然橡胶的生产方法，也没有来自蛋白质的立即过敏的危险。 根据本发明的方法包括向天然橡胶胶乳中加入羰基化合物，然后将所得天然橡胶在自由基形成剂存在下进行空气氧化或向脱蛋白天然橡胶的胶乳中加入羰基化合物，然后 任选地在自由基形成剂存在下使脱蛋白天然橡胶经受空气氧化。
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公开(公告)号：US5622998A
公开(公告)日：1997-04-22
申请号：US527322
申请日：1995-09-12
申请人： Yasuyuki Tanaka , Toshiaki Sakaki , Atsuko Kawasaki , Masaharu Hayashi , Eiji Kanamaru , Kazuhiko Shibata
发明人： Yasuyuki Tanaka , Toshiaki Sakaki , Atsuko Kawasaki , Masaharu Hayashi , Eiji Kanamaru , Kazuhiko Shibata
CPC分类号： C08C19/08
摘要： A depolymerized natural rubber having a number-average molecular weight of from 2,000 to 50,000 obtained by the depolymerization of a deproteinized natural rubber. A process for the preparation of a depolymerized natural rubber comprises dissolving a deproteinized natural rubber into an organic solvent so as to give a concentration of from 1 to 30% by weight and then carrying out air oxidation of the resulting solution in the presence of a metallic catalyst. The depolymerized natural rubber can provide the same physical properties as ordinary vulcanized rubbers, exhibits no odor or color characteristic to natural rubbers and causes no immediate allergy induced by protein.
摘要翻译： 通过脱蛋白天然橡胶的解聚得到的数均分子量为2000〜50,000的解聚天然橡胶。 制备解聚天然橡胶的方法包括将脱蛋白天然橡胶溶解在有机溶剂中，使其浓度为1〜30重量％，然后在金属的存在下进行所得溶液的空气氧化 催化剂。 解聚天然橡胶可以提供与普通硫化橡胶相同的物理性能，对天然橡胶不产生气味或颜色特征，并且不会引起蛋白质引起的即时过敏。
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公开(公告)号：US5569740A
公开(公告)日：1996-10-29
申请号：US390031
申请日：1995-02-17
申请人： Yasuyuki Tanaka , Kazuhiko Shibata , Kenichi Ikeda , Yuji Nishida , Masaharu Hayashi , Shinichi Nakade , Akihito Kuga , Eiji Kanamaru
发明人： Yasuyuki Tanaka , Kazuhiko Shibata , Kenichi Ikeda , Yuji Nishida , Masaharu Hayashi , Shinichi Nakade , Akihito Kuga , Eiji Kanamaru
CPC分类号： B01D61/145 , B01D63/16 , C08C1/04
摘要： There are provided a deproteinized natural rubber latex which comprises a purified product of proteolytically treated natural rubber latex and contains fine particles of natural rubber latex, a deproteinized natural rubber which comprises a dehydrated product of the deproteinized natural rubber latex, and a process for the production of deproteinized natural rubber latex which comprises subjecting a latex solution prepared by (1) adding water and/or a surfactant to a natural rubber latex and then proteolytically treating the resulting latex solution or (2) proteolytically treating a natural rubber latex and then adding water and/or a surfactant to the treated natural rubber latex, to purification using a rotary plate membrane separation apparatus. The deproteinized natural rubber latex contains substantially no protein, is excellent in film-forming property, and provides a raw rubber film having excellent green strength, and the process can produce the deproteinized natural rubber latex in a high yield with high production efficiency.
摘要翻译： 提供了一种脱蛋白天然橡胶胶乳，其包含蛋白水解处理的天然橡胶胶乳的纯化产物，并含有天然橡胶胶乳的细颗粒，包含脱蛋白天然橡胶胶乳的脱水产物的脱蛋白天然橡胶和生产方法 的脱蛋白天然橡胶胶乳，其包括将（1）将水和/或表面活性剂加入天然橡胶胶乳制备的胶乳溶液，然后蛋白水解处理所得胶乳溶液或（2）蛋白水解处理天然橡胶胶乳，然后加入水 和/或表面活性剂加入到经处理的天然橡胶胶乳中，使用旋转板膜分离装置进行纯化。 脱蛋白天然橡胶胶乳基本上不含蛋白质，成膜性优异，并且提供具有优异生坯强度的生橡胶膜，该方法可以高产率高生产率地生产脱蛋白天然橡胶胶乳。
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