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公开(公告)号：US4133783A
公开(公告)日：1979-01-09
申请号：US699022
申请日：1976-06-23
CPC分类号： C09D101/14 , Y10S524/904 , Y10T428/2982
摘要： Thermosetting powder coating compositions comprising cellulose butyrate having a butyryl content of from about 35% to about 55% by weight, a hydroxyl content of from about 0.5% to about 3.0% by weight, and a viscosity of from about 0.05 to about 1.0 second are disclosed. The composition further comprises a crosslinking agent and a catalyst which allows the powder to flow out prior to fusion. Coatings formed by this composition have excellent physical properties and appearance.
摘要翻译： 包含丁酸含量为约35重量％至约55重量％，羟基含量为约0.5重量％至约3.0重量％，粘度为约0.05至约1.0秒的含丁酸丁酯的热固性粉末涂料组合物为 披露 组合物还包含交联剂和允许粉末在熔融之前流出的催化剂。 由该组合物形成的涂料具有优异的物理性能和外观。
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2.发明授权
公开(公告)号：US4166809A
公开(公告)日：1979-09-04
申请号：US863197
申请日：1977-12-22
IPC分类号： C08B3/16 , C09D101/14 , C08L1/14
CPC分类号： C08B3/16 , C09D101/14 , Y10T428/3179 , Y10T428/31794 , Y10T428/31957 , Y10T428/31982
摘要： Cellulose propionate n-butyrate adapted to be mixed with an oil-modified alkyd resin to form a coating composition. The cellulose propionate n-butyrate has unique properties as an ingredient in such coating composition. The cellulose ester has a n-butyryl content of between about 3% and about 5%, a propionyl content of between about 40% and about 50% and a hydroxyl content of between about 2% and about 3%. The coating compositions are especially useful for protection and appearance when used as a coating on such items as wooden furniture.
摘要翻译： 丙酸纤维素正丁酸酯适于与油改性醇酸树脂混合以形成涂料组合物。 丙酸正丁酸纤维素作为这种涂料组合物中的成分具有独特的性能。 纤维素酯的正丁酰基含量为约3％至约5％，丙酰含量为约40％至约50％，羟基含量为约2％至约3％。 当用作木制家具等物品上的涂层时，涂料组合物特别适用于保护和外观。
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公开(公告)号：US4314056A
公开(公告)日：1982-02-02
申请号：US182516
申请日：1980-08-29
摘要： Disclosed is a catalyst composition and a method of preparing lower fatty acid esters of cellulose which comprises esterifying at a temperature of between about 75.degree. C. and about 110.degree. C. a cellulose compound having esterifiable hydroxyl groups with an esterifying bath comprising an organic acid anhydride, a diluent, and a catalyst comprising from about 25 to about 75% by weight sulfuric acid and about 75 to about 25% by weight phosphoric acid, the catalyst being used in amounts of from about 0.3 to about 0.8% by weight based on the weight of cellulose.
摘要翻译： 公开了一种制备纤维素的低级脂肪酸酯的催化剂组合物和方法，其包括在约75℃至约110℃的温度下酯化具有可酯化羟基的纤维素化合物与含有机酸的酯化浴 酸酐，稀释剂和包含约25至约75重量％硫酸和约75至约25重量％磷酸的催化剂，所述催化剂的用量为约0.3至约0.8重量％，基于 纤维素的重量。
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公开(公告)号：US4480091A
公开(公告)日：1984-10-30
申请号：US547262
申请日：1983-10-31
申请人： Richard J. Brewer
发明人： Richard J. Brewer
IPC分类号： C08B5/14
CPC分类号： C08B5/14
摘要： The present invention relates to the preparation of water soluble cellulose sulfate esters. More particularly, it relates to an improved process of preparing cellulose sulfate esters wherein cellulose is slurried in dimethylformamide. To this cellulose-dimethylformamide slurry is then added liquid denitrogen tetroxide to form the cellulose nitrite ester. The cellulose nitrite ester is then converted to the water soluble cellulose sulfate ester by reacting with acetylsulfuric acid in an anhydrous reaction medium.
摘要翻译： 本发明涉及水溶性硫酸纤维素酯的制备。 更具体地说，本发明涉及制备纤维素硫酸酯的改进方法，其中纤维素在二甲基甲酰胺中浆化。 然后向该纤维素二甲基甲酰胺淤浆中加入四氧化四氮，形成亚硝酸纤维素酯。 然后通过与无水反应介质中的乙酰基硫酸反应，将亚硝酸纤维素酯转化成水溶性硫酸纤维素酯。
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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：US4329447A
公开(公告)日：1982-05-11
申请号：US182521
申请日：1980-08-29
摘要： Disclosed is a catalyst and a method of preparing lower fatty acid esters of cellulose which comprises esterifying at a temperature of between about 75.degree. C. and about 110.degree. C. a cellulose compound having esterifiable hydroxyl groups with an esterifying bath comprising an organic acid anhydride, a diluent, and a catalyst comprising (a) from about 0.3 to about 3.0% by weight, based on the weight of cellulose, of an acid selected from the group consisting of sulfuric acid, p-toluene sulfonic acid, methane sulfonic acid, methane disulfonic acid and m-benzene disulfonic acid, and (b) from about 0.05 to about 0.3% by weight, based on the weight of cellulose, of a dialkyl phosphite, the alkyl groups of which contain from 2 to 4 carbon atoms, the weight ratio of said bath to the cellulose being between about 5:1 and about 10:1.
摘要翻译： 公开了一种制备纤维素的低级脂肪酸酯的催化剂和方法，其包括在约75℃至约110℃的温度下酯化具有可酯化羟基的纤维素化合物与含有机酸酐的酯化浴 ，稀释剂和催化剂，其包含（a）约0.3至约3.0重量％，基于纤维素的重量，选自硫酸，对甲苯磺酸，甲磺酸， 甲烷二磺酸和间苯二磺酸，和（b）约0.05至约0.3重量％，基于纤维素的重量，亚烷基二烷基酯，其烷基含有2至4个碳原子， 所述浴与纤维素的重量比为约5:1至约10:1。
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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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