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公开(公告)号：US4716186A
公开(公告)日：1987-12-29
申请号：US849930
申请日：1986-04-09
申请人： Norman A. Portnoy , Larry P. Avery
发明人： Norman A. Portnoy , Larry P. Avery
CPC分类号： C09D7/002 , C08B31/12 , C09D133/08 , C08L3/04
摘要： Cold water soluble methylated, ethylated or carboxymethylated non-gelatinized granular starch materials are provided which are particularly well suited for use as thickeners and/or rheology modifiers in latex paint compositions. Such starch materials have a methyl, ethyl or carboxymethyl degree of substitution (D.S.) of from about 0.15 to about 1 and have a ratio of total inorganic anion content (in weight percent on a starch material dry solids weight basis) to methyl, ethyl or carboxymethyl D.S. of about 14 or less.
摘要翻译： 提供了冷水溶性甲基化，乙基化或羧甲基化的非胶凝颗粒状淀粉材料，其特别适合用作胶乳涂料组合物中的增稠剂和/或流变改性剂。 这种淀粉材料具有约0.15至约1的甲基，乙基或羧甲基取代度（DS），并且具有总无机阴离子含量（以淀粉材料干固体重量计的重量百分数）与甲基，乙基或 羧甲基DS约为14或更少。
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公开(公告)号：US4108748A
公开(公告)日：1978-08-22
申请号：US563257
申请日：1975-03-28
CPC分类号： C08B15/005 , D06M14/22 , Y10S8/12
摘要： Acrylated cotton fabric is reacted with water-N,N-dimethylformamide solutions of acrylamide and then exposed to near ultraviolet light in an inert atmosphere to produce crosslinked acrylated cotton fabrics with durable press properties. The treatment is also applicable to methacrylated cotton fabric and the results obtained are similar.
摘要翻译： 丙烯酸棉织物与丙烯酰胺的N，N-二甲基甲酰胺水溶液反应，然后在惰性气氛中暴露于近紫外光下，生产具有耐久冲压性能的交联丙烯酸酯棉织物。 该处理也适用于甲基丙烯酸酯棉布，所得结果相似。
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公开(公告)号：US5451364A
公开(公告)日：1995-09-19
申请号：US179418
申请日：1994-01-10
CPC分类号： B29C47/8895 , A22C13/0013 , B29C47/0026 , A22C2013/002 , A22C2013/0096
摘要： In a method for forming a cellulose tube suitable for use as a food casing, in which a solution of nonderivatized cellulose, tertiary amine N-oxide and water is extruded through a die gap and the extruded tube downwardly flowed through an air length while being internally cooled, and passed into a water bath, the tube transverse direction tensile strength is substantially increased by drawing the extruded tube through an air length of at least about six inches.
摘要翻译： 在适合用作食品外壳的纤维素管的形成方法中，其中非分解纤维素，叔胺N-氧化物和水的溶液通过模头间隙挤出，并且挤出的管在内部向下流过空气长度 冷却并通入水浴中，通过将挤出管拉伸至少约六英寸的空气长度，管横向拉伸强度显着增加。
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公开(公告)号：USH1032H
公开(公告)日：1992-03-03
申请号：US544714
申请日：1990-06-27
IPC分类号： C08F290/10 , C08J3/12
CPC分类号： C08J3/12 , C08F290/10 , C08J2351/02
摘要： Processes for manufacturing starch copolymer compositions are provided. In one process, a modified starch is reacted with a hydrophilic vinyl monomer to produce a starch copolymer gel which is, in turn, divided in a plurality of gel fragments. The gel fragments are then dried with a stream of gel to produce a flowable, particulate starch copolymer composition. In another process, water is evaporated from the copolymer gel and further polymerization of vinyl monomers is inhibited during the evaporating by any of a variety of means such as reducing the level of residual vinyl monomer or avoiding conditions which initiate polymerization.
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5.依法登记的发明Derivatized starch products as protective colloids in emulsion polymerization processes 失效衍生淀粉产品作为乳液聚合工艺中的保护胶体
公开(公告)号：USH507H
公开(公告)日：1988-08-02
申请号：US42614
申请日：1987-04-20
IPC分类号： C08F2/30
CPC分类号： C08F2/30
摘要： Methylated, ethylated or carboxymethylated starch products which have, per anhydroglucose unit within the starch molecule, an average of from about 0.03 to about 1.0 methyl, ethyl or carboxymethyl substituents covalently bonded thereto and which contain a combined total of less than 1 weight percent, on a dry starch solids weight basis, of polyvalent inorganic anions, monovalent inorganic anions and methylsulfate and ethylsulfate anions are particularly well suited for use as protective colloids in emulsion polymerization or copolymerization processes.
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公开(公告)号：US4992539A
公开(公告)日：1991-02-12
申请号：US173333
申请日：1988-03-24
CPC分类号： C08B31/12 , C08B30/12 , C08B31/006
摘要： A cold-water-swellable granular starch which affords aqueous solutions or dispersions having high-viscosity and/or excellent clarity is provided. In one embodiment, the granular starch is made cold-water swellable by contact with aqueous alcohol, then derivatized with an .alpha.-halocarboxylic acid, and then isolated under condition which inhibit esterification of the granular starch, e.g. high pH, to afford a starch that has excellent paste clarity. In other embodiments, the cold-water-swellable granular starch is crosslinked to afford a starch that has very high paste viscosity.
摘要翻译： 提供了提供具有高粘度和/或优异透明度的水溶液或分散体的冷水 - 可溶胀颗粒淀粉。 在一个实施方案中，颗粒状淀粉通过与含水醇接触而制成冷水可膨胀，然后用α-卤代羧酸衍生化，然后在抑制颗粒淀粉酯化的条件下分离。 高pH值，得到具有优异的糊状清晰度的淀粉。 在其它实施方案中，将冷水可溶胀颗粒淀粉交联以提供具有非常高的糊粘度的淀粉。
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公开(公告)号：US4086418A
公开(公告)日：1978-04-25
申请号：US662134
申请日：1976-02-27
摘要： Hollow cellulosic fibers are produced by nitrosating and dissolving a cellulosic material in an aprotic solvent selected from the group consisting of a dialkylacylamide and dimethylsulfoxide and regenerating the dissolved cellulose by contacting the cellulose solution with a regenerant. The regenerant is n-octanol where the solvent is a dialkylacylamide and n-hexanol where the solvent is dimethylsulfoxide. The fibers are hollow as regenerated and require no special spinnerette designs nor special spinning conditions.
摘要翻译： 中空纤维素纤维通过将纤维素材料亚硝化并溶解在选自二烷基酰胺和二甲基亚砜的非质子溶剂中并通过使纤维素溶液与再生剂接触来再生溶解的纤维素来生产。 再生剂是正辛醇，其中溶剂是二烷基酰胺和正己醇，其中溶剂是二甲基亚砜。 纤维是中空的再生，不需要特殊的喷丝板设计和特殊的纺丝条件。
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公开(公告)号：US4044090A
公开(公告)日：1977-08-23
申请号：US594325
申请日：1975-07-09
申请人： Norman A. Portnoy
发明人： Norman A. Portnoy
摘要： A regenerated cellulosic product is produced by nitrosating and dissolving a cellulosic material in a solution comprising a dialkylacylamide solvent and adding from 2 to 25% by weight, based on the weight of the solution, of a tertiary amine to form a soluble cellulose nitrite ester, contacting the cellulose ester with a coagulant therefore, stretching the coagulated cellulose ester prior to complete regeneration thereof and then completing the regeneration of the cellulose to produce a regenerated cellulosic product.
摘要翻译： 通过将纤维素材料亚硝化并溶解在包含二烷基酰胺溶剂的溶液中并基于溶液的重量加入2至25重量％的叔胺以形成可溶性亚硝酸纤维素酯来生产再生纤维素产品， 使纤维素酯与凝结剂接触，从而在完全再生之前拉伸凝固的纤维素酯，然后完成纤维素的再生以产生再生纤维素产品。
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公开(公告)号：US4082617A
公开(公告)日：1978-04-04
申请号：US715422
申请日：1976-08-18
CPC分类号： C08J11/02 , B01D3/34 , C08J2301/08
摘要： Recovery of the chemical components of a cellulosic organic solvent regenerating solution containing a dialkylacylamide, a lower aliphatic monohydric alcohol, a nitrite of the alcohol and nitric acid. The process comprises distilling the solution to remove the alcohol nitrite and alcohol, leaving the dialkylacylamide and nitric acid, recovering the alcohol, hydrolyzing to convert the alcohol nitrite to the alcohol and nitrous acid, neutralizing the nitric and nitrous acid with an alkali or alkaline earth metal oxide or hydroxide and distilling the solution to remove water and to separate and recover the remaining alcohol, the dialkylacylamide and the nitrate and nitrite salts. The nitrite and nitrate salts are converted by pyrolysis to nitrogen dioxide. The process results in substantially total recovery of the process chemicals.
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公开(公告)号：US4022631A
公开(公告)日：1977-05-10
申请号：US578934
申请日：1975-05-19
CPC分类号： C08B16/00
摘要： Cellulosic articles are regenerated from a cellulosic solution formed by the addition of cellulosic material to dimethyl sulfoxide and formaldehyde or paraformaldehyde by contacting the cellulosic solution with an aqueous solution having a pH greater than seven of a water soluble nucleophilic compound selected from the group consisting of ammonia, ammonium salts, saturated amines and salts of sulfur compounds in which the sulfur has a valence of less than six.
摘要翻译： 纤维素制品从通过将纤维素材料加入二甲基亚砜和甲醛或多聚甲醛形成的纤维素溶液中再生，通过使纤维素溶液与pH大于7的水溶性亲核化合物的水溶液接触，所述水溶性亲核化合物选自氨 ，铵盐，饱和胺和硫化合物的盐，其中硫的价数小于6。
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