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公开(公告)号：US4137201A
公开(公告)日：1979-01-30
申请号：US830296
申请日：1977-09-02
IPC分类号： C08K5/1515 , C08K5/49 , C08L1/10 , C08L1/12 , C08L1/14
CPC分类号： C08K5/1515 , C08K5/49
摘要： This invention is directed to a new thermal stabilizer system for cellulose esters and their commercially useful formulated compositions which can be molded, shaped and otherwise processed in a thermoplastic condition at elevated temperatures to provide products having (1) better molecular weight retention and (2) less discoloration after thermal processing when compared to similar cellulose ester compositions containing prior art stabilizers.
摘要翻译： 本发明涉及用于纤维素酯的新的热稳定剂系统及其商业上可用的配方组合物，其可以在高温下在热塑性条件下模制，成型和以其它方式加工，以提供具有（1）更好的分子量保留性和（2） 与含有现有技术稳定剂的类似纤维素酯组合物相比，热处理后的变色较少。
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公开(公告)号：US4590265A
公开(公告)日：1986-05-20
申请号：US724747
申请日：1985-04-18
申请人： Richard T. Bogan , Chung-Ming Kuo
发明人： Richard T. Bogan , Chung-Ming Kuo
IPC分类号： C09C3/10 , C08B1/00 , C08B3/22 , C09D11/08 , C09D11/14 , C09D17/00 , C09D101/08 , C09D101/10 , C09D175/00 , C08B15/04 , C09D3/18
CPC分类号： C09D101/10 , C08B3/22 , C09D17/00 , Y10T428/31591 , Y10T428/31703
摘要： The present invention provides a novel cellulosic material and a process for preparing the same. The cellulosic material is a carboxylated cellulose ester material having an acid number of at least about 5, an inherent viscosity of from about 0.01 to about 1.00 and wherein the anhydroglucose units thereof have ring substituents comprising by weight based on total polymer weight, of from about 0.05 to about 20% hydroxyl groups, from about 0.5 to about 44% acetyl groups, from 0 to about 54% butyryl groups, from 0 to about 47% propionyl groups, from about 0.4 to about 4.0% total carboxyl groups wherein from about 20% to about 100% of these carboxyl groups are non-saponifiable backbone, and wherein the material has a lactone level of from about 4.52.times.10.sup.-5 to about 6.13.times.10.sup.-4. The carboxylated cellulose esters of the present invention are prepared by reacting a cellulose ester with ozone at a temperature of about 25.degree. to 80.degree. C. for a period of time sufficient to yield the carboxylated cellulose ester product. Also disclosed are end use applications for the carboxylated cellulose esters, such as metal coatings, pigment dispersions, wood coatings, inks, etc.
摘要翻译： 本发明提供了一种新的纤维素材料及其制备方法。 纤维素材料是羧酸化纤维素酯材料，其酸值为至少约5，特性粘度为约0.01至约1.00，并且其中所述脱水葡萄糖单元具有包含基于总聚合物重量的重量的环取代基，为约 约0.05至约20％的羟基，约0.5至约44％的乙酰基，0至约54％的丁酰基，0至约47％的丙酰基，约0.4至约4.0％的总羧基，其中约20 这些羧基中的至少约100％是不皂化的主链，并且其中所述材料的内酯水平为约4.52×10 -5至约6.13×10 -4。 本发明的羧化纤维素酯通过使纤维素酯与臭氧在约25℃至80℃的温度下反应一段足以产生羧化纤维素酯产物的时间来制备。 还公开了用于羧化纤维素酯的最终应用，例如金属涂层，颜料分散体，木器涂料，油墨等。
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3.发明授权Direct precipitation method for producing extrusion-grade cellulose acetate powder and resulting product 失效直接沉淀法生产挤出级醋酸纤维素粉末和所得产品
公开(公告)号：US4228276A
公开(公告)日：1980-10-14
申请号：US24281
申请日：1979-03-26
申请人： Chung-Ming Kuo , Richard T. Bogan
发明人： Chung-Ming Kuo , Richard T. Bogan
CPC分类号： C08B3/28
摘要： Improved method for preparing cellulose acetate powder, particularly extrusion-grade powder, by direct precipitation, with the precipitation step occurring at a temperature of about 65.degree. C. to about 95.degree. C. and with the coagulating agent subsequently being removed from the resulting liquid powder slurry also at a temperature of about 65.degree. C. to about 95.degree. C.; and the cellulose acetate powder product resulting from the improved method, the powder being particularly adapted to take up plasticizer up to about 50 percent by weight and still flow uniformly without caking or becoming tacky.
摘要翻译： 通过直接沉淀制备乙酸纤维素粉末，特别是挤出级粉末的改进方法，沉淀步骤在约65℃至约95℃的温度下进行，随后将凝结剂从所得液体中除去 粉末浆料也在约65℃至约95℃的温度下进行。 和由改进方法得到的乙酸纤维素粉末产品，该粉末特别适用于增塑剂至多约50重量％，并仍然均匀流动，不会结块或变粘。
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公开(公告)号：US5929229A
公开(公告)日：1999-07-27
申请号：US36646
申请日：1998-03-06
申请人： Kevin J. Edgar , Richard T. Bogan
发明人： Kevin J. Edgar , Richard T. Bogan
摘要： The present invention relates to a process for preparing cellulose esters having a total DS/AGU of 0.1 to 3.0, said process consisting of contacting the following:(i) a cellulose material,(ii) a solubilizing amount of a solvent system comprising a carboxamide diluent or a urea-based diluent,(iii) an acylating reagent, and(iv) a titanium-containing compound.
摘要翻译： 本发明涉及一种制备总DS / AGU为0.1至3.0的纤维素酯的方法，所述方法包括以下步骤：（i）纤维素材料，（ii）增溶量的包含甲酰胺的溶剂体系 稀释剂或脲基稀释剂，（iii）酰化试剂和（iv）含钛化合物。
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公开(公告)号：US5608050A
公开(公告)日：1997-03-04
申请号：US573678
申请日：1995-12-18
申请人： Chung M. Kuo , Richard T. Bogan
发明人： Chung M. Kuo , Richard T. Bogan
CPC分类号： C08B3/06
摘要： The specification discloses a process for the manufacture of cellulose acetate. The process reacts, at a temperature suitable for acetylation, an acetic acid activated pretreated cellulose raw material containing 100 parts cellulose by dry weight, and 0.5 to 40 parts of a bisulfate catalyst by dry weight of the cellulose. The bisulfate catalyst is selected from lithium bisulfate, sodium bisulfate, and potassium bisulfate. To enhance mixing with the activated and pretreated cellulose, the catalyst may be mixed with 2 to 4 parts of acetic anhydride by dry weight of the cellulose, and 4 to 6 parts of acetic acid by dry weight of the cellulose. In a further embodiment, 0.05 to 10 parts of a strong Bronsted acid by weight of the dry cellulose may be added as a co-catalyst.
摘要翻译： 该说明书公开了一种制造乙酸纤维素的方法。 该方法在适于乙酰化的温度下，将干燥重量为100份纤维素的醋酸活化预处理纤维素原料和干燥纤维素0.5至40份硫酸氢盐催化剂反应。 硫酸氢盐催化剂选自硫酸氢锂，硫酸氢钠和硫酸氢钾。 为了增强与活化和预处理的纤维素的混合，催化剂可以通过纤维素的干重与2-4重量份的乙酸酐和干燥重量的纤维素的4至6份乙酸混合。 在另一个实施方案中，作为助催化剂可加入0.05至10份重量的干纤维素的强布朗斯台德酸。
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6.发明授权
公开(公告)号：US4028436A
公开(公告)日：1977-06-07
申请号：US563992
申请日：1975-04-01
IPC分类号： C08L23/00 , C08F8/00 , C08F255/00 , C08F255/02 , C08J3/02 , C08L101/00 , C08L23/26 , C08F222/00 , C08F222/06
CPC分类号： C08F255/02
摘要： A melt phase process for the preparation of emulsifiable polyethylene waxes by reacting polyethylene waxes with an unsaturated polycarboxylic component in the presence of a free radical source in the substantial absence of oxygen.
摘要翻译： 一种用于通过在基本不存在氧气的情况下在自由基源存在下使聚乙烯蜡与不饱和多羧酸组分反应来制备可乳化的聚乙烯蜡的熔融相方法。
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公开(公告)号：US5750677A
公开(公告)日：1998-05-12
申请号：US367025
申请日：1994-12-30
申请人： Kevin J. Edgar , Richard T. Bogan
发明人： Kevin J. Edgar , Richard T. Bogan
摘要： The present invention relates to a process for preparing cellulose esters having a total DS/AGU of 0.1 to 3.0, said process comprising contacting the following: (i) a cellulose material, (ii) a solubilizing amount of a solvent system comprising a carboxamide diluent or a urea-based diluent, (iii) an acylating reagent, and (iv) a titanium-containing compound.
摘要翻译： 本发明涉及一种制备总DS / AGU为0.1至3.0的纤维素酯的方法，所述方法包括使以下物质接触：（i）纤维素材料，（ii）增溶量的包含羧酰胺稀释剂 或脲基稀释剂，（iii）酰化剂，和（iv）含钛化合物。
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公开(公告)号：US4342865A
公开(公告)日：1982-08-03
申请号：US286919
申请日：1981-07-27
IPC分类号： C08B3/22
CPC分类号： C08B3/22
摘要： Improved method for bleaching cellulose esters, such as cellulose acetate, cellulose acetate propionate and cellulose acetate butyrate, by adding during the hydrolysis reaction of the cellulose ester at from 80.degree. C. to 150.degree. C. a bleaching agent mixture of hydrogen peroxide and at least one monopersulfate salt selected from the group consisting of sodium, potassium and lithium or mixtures thereof.
摘要翻译： 通过在80℃至150℃下在纤维素酯的水解反应过程中加入纤维素酯，例如乙酸纤维素，乙酸丙酸纤维素和乙酸丁酸纤维素的改进方法。将过氧化氢和 至少一种选自钠，钾和锂的单过硫酸盐或其混合物。
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公开(公告)号：US4325997A
公开(公告)日：1982-04-20
申请号：US191791
申请日：1980-09-29
CPC分类号： B32B23/04 , Y10T428/31703
摘要： This invention is directed to processable cellulose esters having excellent adhesion to metal substrates and weatherability. These commercially useful cellulose ester compositions can be molded, extruded over metal foils, shaped and otherwise processed in a thermoplastic condition at elevated temperatures to provide products having improved ultraviolet light stability or weatherability and good color stability.
摘要翻译： 本发明涉及对金属基材具有优异粘附性和耐候性的可加工性纤维素酯。 这些商业上有用的纤维素酯组合物可以在高温下在热塑性条件下成型，挤压成金属箔，成型和另外加工，以提供具有改善的紫外光稳定性或耐候性和良好颜色稳定性的产品。
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