-
1.发明授权Water-absorbent resin having improved water-absorbency and improved water-dispersibility and process for producing same 失效具有改善的吸水性和改善的水分散性的吸水性树脂及其制造方法
公开(公告)号：US4507438A
公开(公告)日：1985-03-26
申请号：US448150
申请日：1982-12-09
IPC分类号： C08J3/24 , A61L15/60 , B01J20/26 , C08F20/06 , C08L33/02 , C08L63/00 , C08L3/02 , C08L9/00 , C08L31/04 , C08L33/06
摘要： Water-absorbent resins having improved water-absorbency, water-absorption rate and water-dispersibility can be produced by crosslinking a water-absorbent resin comprising a carboxylate as a constituent of the resin with a crosslinking agent having at least two functional groups in the presence of water in a proportion of 0.01 to 1.3 parts by weight per part by weight of the resin in an inert solvent.
摘要翻译： 具有改善的吸水性，吸水率和水分散性的吸水性树脂可以通过在存在下具有至少两个官能团的交联剂交联包含作为树脂成分的羧酸盐的吸水性树脂来制备 的水，其比例为在惰性溶剂中每重量份树脂0.01至1.3重量份。
-
2.发明授权Water-absorbent resin having improved water-absorbency and improved water-dispersibility and process for producing same 失效具有改善的吸水性和改善的水分散性的吸水性树脂及其制造方法
公开(公告)号：US4541871A
公开(公告)日：1985-09-17
申请号：US638601
申请日：1984-08-07
IPC分类号： C08J3/24 , A61L15/60 , B01J20/26 , C08F20/06 , C08L33/02 , C08L63/00 , C08L1/28 , C08L33/08 , C08L33/10 , C08L51/02
摘要： Water-absorbent resins having improved water-absorbency, water-absorption rate and water-dispersibility can be produced by crosslinking a water-absorbent resin comprising a carboxylate as a constituent of the resin with a crosslinking agent having at least two functional groups in the presence of water in a proportion of 0.01 to 1.3 parts by weight per part by weight of the resin in an inert solvent.
-
公开(公告)号：US4880888A
公开(公告)日：1989-11-14
申请号：US238
申请日：1987-01-05
摘要： A water-absorbent resin having excellent physical properties can be produced by a process wherein an aqueous solution containing an .alpha.,.beta.-unsaturated carboxylic acid and an alkali metal salt thereof in a total amount of 25% by weight or more is subjected to polymerization with a radical polymerization initiator in a petroleum-based hydrocarbon solvent in the presence or absence of a crosslinking agent, characterized by using, as a surfactant, a polyglycerine--fatty acid ester having an HLB of 2 to 16 and represented by the general formula ##STR1## (wherein R is an acyl group or hydrogen atom and n is an integer of 0 to 8).
摘要翻译： 具有优异物理性质的吸水性树脂可以通过以下方法制备，其中将含有总量为25重量％以上的α，β-不饱和羧酸及其碱金属盐的水溶液与 在存在或不存在交联剂的情况下，在石油基烃溶剂中的自由基聚合引发剂，其特征在于使用HLB为2〜16的聚甘油 - 脂肪酸酯作为表面活性剂，由通式
（其中R是酰基或氢原子，n是0至8的整数）。 -
4.发明授权Alkali metal acrylate or ammonium acrylate polymer excellent in salt solution-absorbency and process for producing same 失效盐溶液吸收性优异的碱金属丙烯酸酯或丙烯酸铵聚合物及其制造方法
公开(公告)号：US4340706A
公开(公告)日：1982-07-20
申请号：US209174
申请日：1980-11-21
IPC分类号： C08F2/00 , B01J20/26 , C08F2/18 , C08F2/20 , C08F2/32 , C08F20/00 , C08F20/06 , C08F120/04 , C08F220/06
CPC分类号： C08F220/06 , C08F2/32
摘要： An alkali metal acrylate polymer obtained by suspending an aqueous solution of acrylic acid and an alkali metal acrylate in an alicyclic or aliphatic hydrocarbon solvent containing a surfactant having an HLB value of 8-12 and subjecting the suspension to inverse suspension polymerization in the presence of a water-soluble radical polymerization initiator has a much higher water-absorbency and particularly salt solution-absorbency than known ones. If said polymer is crosslinked with a crosslinking agent, its stability in the fluid-absorbed state for a long period of time is improved and the absorption rate when absorbing water is also improved.
摘要翻译： 将丙烯酸和碱金属丙烯酸酯水溶液悬浮在含有HLB值为8-12的表面活性剂的脂环族或脂族烃溶剂中并在悬浮聚合反应中进行反相悬浮聚合而得到的碱金属丙烯酸酯聚合物 水溶性自由基聚合引发剂具有比已知的更高的吸水性，特别是盐溶液吸收性。 如果所述聚合物与交联剂交联，则其在长时间内在流体吸收状态下的稳定性提高，并且吸收水时的吸收速率也得到改善。
-
公开(公告)号：US4972019A
公开(公告)日：1990-11-20
申请号：US368795
申请日：1989-06-20
摘要： A water-absorbent resin composition having superior gel stability which comprises a water-absorbent resin, at least one oxygen-containing reducing inorganic salt and, optionally, at least one organic antioxidant.
-
公开(公告)号：US4863989A
公开(公告)日：1989-09-05
申请号：US53623
申请日：1987-05-26
摘要： A water-absorbent resin composition having superior gel stability which comprises a water-absorbent resin, at least one oxygen-containing reducing inorganic salt and, optionally, at least one organic antioxidant.
摘要翻译： 具有优异凝胶稳定性的吸水性树脂组合物，其包含吸水性树脂，至少一种含氧还原性无机盐和任选的至少一种有机抗氧化剂。
-
公开(公告)号：US4683274A
公开(公告)日：1987-07-28
申请号：US738290
申请日：1985-05-28
申请人： Morio Nakamura , Shigeji Obayashi , Takushi Yamamoto , Toshikazu Nakanishi , Hitoshi Tanaka , Yuji Sakamoto
发明人： Morio Nakamura , Shigeji Obayashi , Takushi Yamamoto , Toshikazu Nakanishi , Hitoshi Tanaka , Yuji Sakamoto
IPC分类号： C08F20/00 , A61L15/60 , C08F2/18 , C08F2/32 , C08F20/06 , C08F120/04 , C08F220/04 , C08F20/04
摘要： A water-absorbent resin usable as a suitable water absorbent in sanitary materials and other fields can be produced by subjecting an aqueous solution of an .alpha.,.beta.-unsaturated carboxylic acid and of an alkali metal salt thereof to polymerization with a radical polymerization initiator in a petroleum-based hydrocarbon solvent in the presence or absence of a crosslinking agent and, in this polymerization, using a saccharose-fatty acid ester as a protective colloid agent.
摘要翻译： 在卫生材料和其它领域中可用作合适的吸水剂的吸水性树脂可以通过使α，β-不饱和羧酸及其碱金属盐的水溶液与自由基聚合引发剂在 在存在或不存在交联剂的情况下，在石油基烃溶剂中，在该聚合中，使用蔗糖脂肪酸酯作为保护胶体剂。
-
8.发明授权Process for granulating a water-absorbent resin employing (a) water (b) inorganic powder & (c) surfactant in an inert solvent 失效使用（a）水（b）无机粉末和（c）表面活性剂在惰性溶剂中造粒吸水性树脂的方法
公开(公告)号：US4732968A
公开(公告)日：1988-03-22
申请号：US937284
申请日：1986-12-03
申请人： Shigeji Obayashi , Morio Nakamura , Takushi Yamamoto , Hitoshi Tanaka , Yuji Sakamoto , Yasuhiro Shimada
发明人： Shigeji Obayashi , Morio Nakamura , Takushi Yamamoto , Hitoshi Tanaka , Yuji Sakamoto , Yasuhiro Shimada
IPC分类号： A61L15/60 , C08F2/32 , C08J3/12 , C08L101/14
CPC分类号： C08J3/12 , A61L15/60 , C08J2300/14
摘要： A water-absorbent resin having an appropriate particle size and a narrow particle size distribution can be obtained by adding a powdered inorganic material in a proportion of 0.000005-0.2 part by weight to 1 part by weight of a water-absorbent resin containing therein a carboxylate as a component of the polymer with agitation in an inert solvent in the presence of 0.1-5.0 parts by weight of water and 0.005-0.2 part by weight of a surfactant and then removing water and the inert solvent by distillation.
摘要翻译： 通过将0.000005-0.2重量份的粉末状无机材料与1重量份含有羧酸盐的吸水性树脂相加，可以获得具有适当粒径和粒径分布窄的吸水性树脂 作为聚合物的组分，在惰性溶剂中，在0.1-5.0重量份水和0.005-0.2重量份表面活性剂的存在下搅拌，然后通过蒸馏除去水和惰性溶剂。
-
公开(公告)号：US5180798A
公开(公告)日：1993-01-19
申请号：US637155
申请日：1991-01-03
摘要： An improved process for the production of a water-absorbent resin by reversed phase suspension polymerization of a water-soluble ethylenic unsaturated monomer is disclosed. The process is conducted by subjecting an aqueous solution of a water-soluble ethylenic unsaturated monomer to reversed phase suspension polymerization reaction of a first stage in a petroleum hydrocarbon solvent in the presence of a surfactant and/or polymeric protective colloid by using a radical polymerization initiator optionally in the presence of a crosslinking agent, cooling the resulting slurry to precipitate the surfactant and/or polymeric protective colloid, and adding an aqueous solution of a water-soluble ethylenic unsaturated monomer containing a radical polymerization initiator and optionally a crosslinking agent to the first polymerization reaction system to further carry out the reversed phase suspension polymerization reaction, at least, once.
-
公开(公告)号：US5334679A
公开(公告)日：1994-08-02
申请号：US95830
申请日：1993-07-22
申请人： Takushi Yamamoto , Hiroari Hara , Nobuhiro Maeda , Morio Nakamura
发明人： Takushi Yamamoto , Hiroari Hara , Nobuhiro Maeda , Morio Nakamura
CPC分类号： C08F20/34
摘要： The present invention is directed to a method for production of a water-soluble cationic polymer comprising polymerizing a cationic vinyl monomer; either a cationic acrylate monomer alone or a mixture of said monomer and another monomer copolymerizable therewith, in dispersion medium in the presence of a surfactant by suspension polymerization method. The present invention offers an industrially advantageous method to obtain the water-soluble cationic polymer with a high degree of cationization and a high viscosity in water solution which can be used for flocculants, antistatic agents, retention aids for paper manufacturing and other purposes.
摘要翻译： 本发明涉及一种生产水溶性阳离子聚合物的方法，其包括使阳离子乙烯基单体聚合; 单独的阳离子丙烯酸酯单体或所述单体和可与其共聚的其它单体的混合物，在悬浮聚合法的表面活性剂存在下在分散介质中。 本发明提供了一种工业上有利的方法来获得水溶性阳离子聚合物，其水溶液的高粘度，可用于絮凝剂，抗静电剂，造纸用助留剂和其它目的。
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.019 秒)