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公开(公告)号：US5294469A
公开(公告)日：1994-03-15
申请号：US77679
申请日：1993-06-16
IPC分类号： B32B27/12 , B65D65/46 , D01F6/62 , D03D15/00 , D06N3/12 , B32B1/02 , B32B1/08 , B32B1/10 , B32B27/02 , B32B33/00
CPC分类号： D06N3/121 , B32B27/12 , B65D65/466 , D01F6/625 , D03D15/00 , D10B2321/021 , D10B2331/04 , D10B2401/041 , Y02W90/12 , Y10S220/30 , Y10S428/913 , Y10T428/1362 , Y10T428/1366 , Y10T428/1393 , Y10T442/2025
摘要： A thermoplastic polymer composition primarily comprising polylactic acid or a copolymer of lactic acids and the other hydroxycarboxylic acids than lactic acids, industrial fabrics which can be degraded into nontoxic water and carbon dioxide within a relatively short period under the natural environment, and flexible containers, water shielding sheets and resin coated-cloth ventilation tubes which are prepared from the industrial fabrics.
摘要翻译： 主要包含聚乳酸或乳酸与其它羟基羧酸的共聚物的热塑性聚合物组合物，在天然环境下可在相对较短的时间内被分解成无毒水和二氧化碳的工业织物以及柔性容器，水 屏蔽片和由工业织物制备的树脂涂布通风管。
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公开(公告)号：US5034209A
公开(公告)日：1991-07-23
申请号：US508699
申请日：1990-04-13
摘要： Chlorine is produced by reacting hydrogen chloride and oxygen in the presence of a chromium oxide catalyst in a reactor whose catalyst-contacting part is lined with one of lining materials represented by the following general formula(I):M.sub.a X.sub.b (I)wherein M means boron, aluminum, silicon, titanium, zirconium or chromium, X denotes oxygen, nitrogen or carbon, a is an integer of 1-2 and b stands for an integer of 1-3 or with a mixture of at least two of the lining materials. The above process and reactor are effective in maintaining the activity of the catalyst.
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公开(公告)号：US06528617B1
公开(公告)日：2003-03-04
申请号：US09869154
申请日：2001-06-25
申请人： Yuji Terado , Hiroshi Suizu , Masatoshi Takagi , Masanobu Ajioka , Shoji Hiraoka , Masayuki Sakai , Hiroyuki Suzuki , Ryo Shinagawa , Shinji Ogawa , Yasushi Kotaki
发明人： Yuji Terado , Hiroshi Suizu , Masatoshi Takagi , Masanobu Ajioka , Shoji Hiraoka , Masayuki Sakai , Hiroyuki Suzuki , Ryo Shinagawa , Shinji Ogawa , Yasushi Kotaki
IPC分类号： C08F600
摘要： The invention relates to a process for producing an aliphatic polyester excellent in stability which includes subjecting an aliphatic polyester containing at least 50% of an aliphatic hydroxycarboxylic acid unit, obtainable by solid-phase polymerization under a flowing gas in the presence of a volatile catalyst so as to have a desired weight average molecular weight within the range of 50,000 to 1,000,000, to a heat treatment at a temperature equal to or higher than the reaction temperature of the solid-phase polymerization under a flowing gas with maintaining the aliphatic polyester in a solid state. According to the process of the invention, an aliphatic polyester excellent in stability at molding and storage stability is obtained.
摘要翻译： 本发明涉及稳定性优异的脂肪族聚酯的制造方法，其特征在于，在挥发性催化剂的存在下，使含有至少50％脂肪族羟基羧酸单元的脂肪族聚酯，在流动气体下通过固相聚合得到， 为了使所需的重均分子量在50,000〜1,000,000范围内，在等于或高于流动气体下的固相聚合反应温度的温度下进行热处理，同时保持脂族聚酯为固体 州。 根据本发明的方法，获得了在成型时的稳定性优异且储存稳定性优异的脂肪族聚酯。
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公开(公告)号：US6140458A
公开(公告)日：2000-10-31
申请号：US300292
申请日：1999-04-27
申请人： Yuji Terado , Hiroshi Suizu , Masatoshi Takagi , Masanobu Ajioka , Shoji Hiraoka , Masayuki Sakai , Hiroyuki Suzuki , Ryo Shinagawa , Shinji Ogawa , Yasushi Kotaki
发明人： Yuji Terado , Hiroshi Suizu , Masatoshi Takagi , Masanobu Ajioka , Shoji Hiraoka , Masayuki Sakai , Hiroyuki Suzuki , Ryo Shinagawa , Shinji Ogawa , Yasushi Kotaki
摘要： The invention provides a process for producing high-molecular aliphatic polyesters capable of being substitutes for general-purpose resins that are required to have high toughness, in a simplified manner and at a high volume efficiency. Specifically, in the process, used as the starting material is an easily-available, low-molecular aliphatic polyester prepolymer to be prepared through polycondensation of inexpensive materials of an aliphatic hydroxycarboxylic acid such as lactic acid, glycolic acid or the like, an aliphatic polyalcohol such as butanediol or the like, and an aliphatic polycarboxylic acid such as succinic acid or the like, and the starting prepolymer is crystallized and thereafter polycondensed in a solid phase in the presence of a catalyst to give the intended, tough and high-molecular aliphatic polyester.
摘要翻译： 本发明提供了一种制备高分子量脂肪族聚酯的方法，其能够以简单的方式和高体积效率代替要求具有高韧性的通用树脂。 具体地说，在作为起始原料的方法中，作为通过脂肪族羟基羧酸如乳酸，乙醇酸等的廉价材料的缩聚制备的容易获得的低分子量脂肪族聚酯预聚物，脂肪族多元醇 例如丁二醇等，和脂肪族多元羧酸如琥珀酸等，并将起始预聚物结晶化，然后在催化剂存在下在固相中缩聚，得到所需的韧性和高分子量脂族 聚酯。
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公开(公告)号：US5691424A
公开(公告)日：1997-11-25
申请号：US450927
申请日：1995-05-25
摘要： A preparation process of heat-resistant molded articles of a lactic acid-based polymer comprising mixing the lactic acid-based polymer and poly-.epsilon.-caprolactone so as to obtain a L-lactic acid ratio of 75% by weight or more, adding to the polymer mixture a crystalline inorganic powder containing 50% by weight or more of SiO.sub.2, melt-kneading the resultant composition, filling the same into a mold which is set at 85.degree..about.125.degree. C. and forming a shape while promoting crystallization. The molded articles have excellent heat resistance and impact strength, are suitably used for food trays and beverage cups, and can be degraded, in the case of waste, into nontoxic water and carbon dioxide like natural products within a relatively short period in the natural environment.
摘要翻译： 一种乳酸类聚合物的耐热成型体的制备方法，其特征在于，将乳酸类聚合物和聚ε-己内酯混合，得到75重量％以上的L-乳酸比例，添加到 聚合物混合物是含有50重量％以上SiO 2的结晶无机粉末，将所得组合物熔融捏合，将其填充到设定在85℃125℃的模具中并形成同时促进结晶。 模塑制品具有优异的耐热性和冲击强度，适用于食品托盘和饮料杯，并且在废物的情况下可以在自然环境相对短的时间内降解成无毒的水和二氧化碳如天然产物 。
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公开(公告)号：US5409751A
公开(公告)日：1995-04-25
申请号：US32284
申请日：1993-03-17
CPC分类号： B65D65/466 , B29C49/0005 , C08L67/04 , B29K2067/00 , B29K2067/046 , B29K2995/0026 , B29K2995/0063 , B29K2995/0089 , Y02W90/12 , Y02W90/13 , Y10T428/139 , Y10T428/1397
摘要： A degradable container which is excellent in transparency and impact strength and can be decomposed into nontoxic water and carbon dioxide in the natural environment within a relatively short period can be obtained by using the process for molding a container of an arbitrary shape from a thermoplastic composition having polylactic acid of lactic acids or a copolymer of lactic acids and other hydroxycarboxylic acids as a main component, preforming the composition and thereafter molding the container in a temperature range from Tg to Tg+60.degree. C. on the basis of the glass transition temperature Tg of the thermoplastic polymer composition and under the condition of a draw ratio of 6 times or less.
摘要翻译： 通过使用从具有任意形状的容器成型任意形状的容器的方法可以获得透明度和冲击强度优异并且可以在相对较短的时间内在自然环境中分解成无毒水和二氧化碳的可降解容器，该方法由具有 乳酸的聚乳酸或乳酸与其它羟基羧酸的共聚物作为主要成分，预先形成组合物，然后基于玻璃化转变温度Tg在Tg至Tg + 60℃的温度范围内成型容器 的热塑性聚合物组合物，并且在拉伸比为6倍以下的条件下进行。
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公开(公告)号：US5147624A
公开(公告)日：1992-09-15
申请号：US759630
申请日：1991-09-16
申请人： Tadamitsu Kiyoura , Masanobu Ajioka , Naoshi Fujimoto , Toshihide Suzuki , Yasuo Kogure , Tokio Nagayama , Kazuo Kanaya
发明人： Tadamitsu Kiyoura , Masanobu Ajioka , Naoshi Fujimoto , Toshihide Suzuki , Yasuo Kogure , Tokio Nagayama , Kazuo Kanaya
摘要： Chlorine can be efficiently produced at a low temperature and with a high hourly space velocity by oxidizing hydrogen chloride with an oxygen-containing gas in the presence of a catalyst obtained by calcining a compound, which has in turn been obtained by reacting chromium nitrate, chromium chloride, the chromium salt of an organic acid or the like with ammonia, or by calcining a mixture of the compound and a silicon compound, preferably, at a temperature lower than 800.degree. C.
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公开(公告)号：US5112580A
公开(公告)日：1992-05-12
申请号：US525724
申请日：1990-05-21
摘要： Chlorine is produced by reacting hydrogen chloride and oxygen in the presence of a chromium oxide catalyst in a reactor whose catalyst-contacting part is lined with one of lining materials represented by the following general formula (I):M.sub.a X.sub.b (I)wherein M can be boron, aluminum, silicon, titanium, zirconium or chromium, X denotes oxygen, nitrogen or carbon, a is an integer of 1-2 and b stands for an integer of 1-3 or with a mixture of at least two of the lining materials. The above process and reactor are effective in maintaining the activity of the catalyst.
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公开(公告)号：US4956169A
公开(公告)日：1990-09-11
申请号：US169951
申请日：1988-03-18
摘要： Chlorine is produced by reacting hydrogen chloride and oxygen in the presence of a chromium oxide catalyst in a reactor whose catalyst-contacting part is lined with one of lining materials represented by the following general formula (I):M.sub.a X.sub.b (I)wherein M means boron, aluminum, silicon, titanium, zirconium or chromium, X denotes oxygen, nitrogen or carbon, a is an integer of 1-2 and b stands for an integer of 1-3 or with a mixture of at least two of the lining materials. The above process and reactor are effective in maintaining the activity of the catalyst.
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公开(公告)号：US4774070A
公开(公告)日：1988-09-27
申请号：US13426
申请日：1987-02-11
CPC分类号： C01B7/04 , C01B7/0743
摘要： Chlorine is produced by oxidizing byproduced hydrogen chloride. An offgas containing hydrogen chloride as a byproduct is reacted with oxygen at 300.degree.-500.degree. C. in the presence of a catalyst which contains chromic oxide (Cr.sub.2 O.sub.3) as a principal component. The resulting gas is cooled rapidly and then washed with water to recover vaporized chromium. The hydrogen chloride is then absorbed in water to recover it as an aqueous hydrochloric acid solution. The still remaining portion of the resultant gas is washed with sulfuric acid to remove water from the same, followed by compression and cooling. The resulting liquefied chlorine is separated. The still remaining gas composed principally of oxygen is thereafter returned to the oxidation step.
摘要翻译： 通过氧化副产生的氯化氢产生氯。 在含有氧化铬（Cr 2 O 3）作为主要成分的催化剂的存在下，将含有氯化氢作为副产物的废气在300-500℃下与氧气反应。 将所得气体快速冷却，然后用水洗涤以回收蒸发的铬。 然后将氯化氢吸收在水中，以盐酸水溶液的形式回收。 所得气体的剩余部分用硫酸洗涤以从其中除去水，然后压缩和冷却。 所得到的液化氯被分离。 然后主要由氧气组成的剩余气体返回氧化步骤。
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