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1.发明授权Films and molded articles formed from aliphatic polyester compositions containing nucleating agents 失效由含有成核剂的脂肪族聚酯组合物形成的薄膜和模制品公开(公告)号：US06417294B1
公开(公告)日：2002-07-09
申请号：US08767880
申请日：1996-12-17
申请人： Shoji Obuchi , Tatsuya Kawaguchi , Tomoyuki Nakata , Takayuki Watanabe , Yasuhiro Kitahara , Kazuhiko Suzuki , Masanobu Ajioka
发明人： Shoji Obuchi , Tatsuya Kawaguchi , Tomoyuki Nakata , Takayuki Watanabe , Yasuhiro Kitahara , Kazuhiko Suzuki , Masanobu Ajioka
IPC分类号： C08G6306
CPC分类号： C08K5/20 , Y10T428/1352 , C08L67/04
摘要： An aliphatic polyester formed item having transparency and crystallinity in combination by crystallizing, in the course of or after processing, an aliphatic polyester composition comprising aliphatic polyester and one or more transparent nucleating agent selected from the group consisting of aliphatic carboxylic acid amide, aliphatic carboxylic acid salt, aliphatic alcohol and aliphatic carboxylic acid ester having a melting point of 40-300° C.
摘要翻译： 一种具有透明度和结晶度的脂肪族聚酯成型品，其组合为在加工过程中结晶或加工后结合脂族聚酯组合物，其包含脂族聚酯和一种或多种透明成核剂，所述成核剂选自脂族羧酸酰胺，脂族羧酸 盐，脂肪醇和脂肪族羧酸酯，熔点为40-300℃
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公开(公告)号：US5916950A
公开(公告)日：1999-06-29
申请号：US895828
申请日：1997-07-17
申请人： Shoji Obuchi , Takayuki Watanabe , Yasuhiro Kitahara , Tomoyuki Nakata , Kazuhiko Suzuki , Masanobu Ajioka
发明人： Shoji Obuchi , Takayuki Watanabe , Yasuhiro Kitahara , Tomoyuki Nakata , Kazuhiko Suzuki , Masanobu Ajioka
摘要： A thermal resistant resin composition comprising 100 parts by weight of polyester (A) having 25-75% by weight of a lactic acid component consisting of 25-75% by weight of a lactic acid-based polymer (a1) and 25-75% by weight of other aliphatic polyester (a2) having a melting point of 100-250.degree. C., and 0.1-70 parts by weight of a crystalline inorganic filler (B) containing 10% by weight or more of SiO.sub.2. The thermal resistant resin composition of the invention performs following function:1) injection molding can be carried out at a mold temperature of Tg or less or around room temperature with a short molding-cycle,2) quick crystallization velocity and satisfactory crystallinity can be attained in the molding step, and3) the molded articles have, as a result, excellent thermal resistance and generate properties of low deterioration of a high polymer component and slow embrittlement in use.
摘要翻译： 一种耐热性树脂组合物，其包含100重量份具有25-75重量％的由25-75重量％的乳酸基聚合物（a1）和25-75重量％的乳酸基聚合物（a1）组成的乳酸组分的聚酯（A） 的熔点为100-250℃的其它脂族聚酯（a2）和0.1-70重量份含有10重量％以上SiO 2的结晶无机填料（B）。 本发明的耐热树脂组合物具有以下功能：1）注塑成型可以在Tg或更低的温度下或在室温附近以较短的成型周期进行，2）快速结晶速度，并且可以获得令人满意的结晶度 在模塑步骤中，和3）模塑制品具有优异的耐热性，并且产生高聚合物组分的劣化劣化和使用中的缓慢脆化性能。
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公开(公告)号：US06235825B1
公开(公告)日：2001-05-22
申请号：US09402882
申请日：1999-10-14
申请人： Yasunori Yoshida , Shoji Obuchi , Yasuhiro Kitahara , Takayuki Watanabe , Hisashi Aihara , Tomoyuki Nakata , Kazuhiko Suzuki , Masanobu Ajioka
发明人： Yasunori Yoshida , Shoji Obuchi , Yasuhiro Kitahara , Takayuki Watanabe , Hisashi Aihara , Tomoyuki Nakata , Kazuhiko Suzuki , Masanobu Ajioka
IPC分类号： C08K511
CPC分类号： C08J5/18 , B29C55/28 , B29K2995/006 , C08J2367/04 , C08K5/0016 , C08L67/02 , C08L67/04
摘要： A polylactic acid-based resin composition composed of a high molecular ingredient (A) comprising polylactic acid (a1) and an aliphatic polyester (B), and a film, particularly an inflation film, prepared from the resin composition. The film comprising the polylactic acid-based resin composition of the invention is biodegradable and excellent in flexibility and resistance to blocking of film and bleeding-out of plasticizer, has no anisotropy in tear strength, and can be suitably used for an agricultural multi-film and garbage bag. When the film of the invention is used for food wrapping, the film prevents fungus growth and contamination of color or odor, and thus can be suitably used.
摘要翻译： 由聚乳酸（a1）和脂肪族聚酯（B）构成的高分子成分（A）和由该树脂组合物制备的膜，特别是吹胀薄膜组成的聚乳酸类树脂组合物。 包含本发明的聚乳酸类树脂组合物的薄膜是可生物降解的，并且柔软性，耐粘连性和增塑剂渗出性优异，撕裂强度无各向异性，可适用于农用多层膜 和垃圾袋。 当本发明的膜用于食品包装时，该膜防止真菌生长和颜色或气味的污染，因此可以适当地使用。
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公开(公告)号：US6136905A
公开(公告)日：2000-10-24
申请号：US996477
申请日：1997-12-22
摘要： A lactic acid polymer composition comprising formulating 100 parts by weight of a mixture consisting of 80-95% by weight of an L-lactic acid polymer having an L-lactic acid proportion of 75% or more and 5-20% by weight of a plasticizer selected from the group consisting of a polyhydric alcohol ester and a hydroxypolycarboxylic acid ester, 0.1-5 parts by weight of an anti-blocking agent having a SiO.sub.2 content of 90% or more and an average particle size of 7-50 nm, and 0.1-2 parts by weight of a slip agent; a molded product and film obtained from the composition; and a preparation process of the same are disclosed. The molded product and film are excellent in processability, transparency, flexibility, anti-blocking property and slip, and can be degraded into harmless water and carbon dioxide under natural environment, when abandoned.
摘要翻译： 一种乳酸聚合物组合物，其包含配制100重量份的由80-95重量％的L-乳酸比例为75％以上的L-乳酸聚合物和5-20重量％的由 选自多元醇酯和羟基多羧酸酯的增塑剂，0.1-5重量份SiO 2含量为90％以上，平均粒径为7-50nm的防粘连剂，以及 0.1-2重量份的滑爽剂; 由该组合物获得的成型品和膜; 并公开了其制备方法。 成型品和膜的加工性，透明性，柔软性，防粘连性和滑爽性优异，在被废弃时可以在自然环境下降解成无害的水和二氧化碳。
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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：US5447962A
公开(公告)日：1995-09-05
申请号：US186920
申请日：1994-01-27
申请人： Masanobu Ajioka , Katashi Enomoto , Akihiro Yamaguchi , Kazuhiko Suzuki , Takayuki Watanabe , Yasuhiro Kitahara
发明人： Masanobu Ajioka , Katashi Enomoto , Akihiro Yamaguchi , Kazuhiko Suzuki , Takayuki Watanabe , Yasuhiro Kitahara
CPC分类号： C08J9/06 , C08J9/14 , C08J2367/04 , Y10S521/916
摘要： Foams comprising innumerable cells dispersed in thermoplastic polymer compositions substantially consisting of polylactic acid or a copolymer of lactic acid and hydroxycarboxylic acid and having degradable characteristics in the natural environment.The foams can be used for containers such as food trays and throw away cups comprising molded sheet foam of a thermoplastic and degradable polymer or heat insulating materials and cushioning materials comprising bulk foam.
摘要翻译： 包含分散在基本上由聚乳酸或乳酸和羟基羧酸的共聚物组成的热塑性聚合物组合物中的无数细胞的泡沫在天然环境中具有可降解的特性。 泡沫可以用于诸如食物托盘的容器，并且丢弃包括热塑性和可降解聚合物的模塑片状泡沫或包含散装泡沫的隔热材料和缓冲材料的杯子。
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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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8.发明授权公开(公告)号：US06290896B1
公开(公告)日：2001-09-18
申请号：US08443672
申请日：1995-05-18
IPC分类号： B29C5110
CPC分类号： C08J5/00 , B29C51/002 , B29C51/06 , B29C51/10 , C08J2367/04 , C08L67/04
摘要： A formed product which has a thickness of 0.1˜2 mm and a haze of 5%/2 mm or less and is degraded with ease in the natural environment is obtained by holding a transparent L-lactic acid base polymer sheet having an L-lactic acid proportion of 75% or more and a thickness of 0.2˜2 mm under conditions where: (1) a holding temperature is in the range of 55˜90° C., (2) a holding time m1 (min) satisfies the formula: log10m1
摘要翻译： 通过保持具有L-乳酸的透明L-乳酸基聚合物片材，获得厚度为0.1〜2mm，雾度为5％/ 2mm以下并且在自然环境中容易降解的成型体 条件为：（1）保持温度在55〜90℃的范围内，（2）保持时间m1（min）满足公式（1）的条件下，酸的比例为75％以上，厚度为0.2〜 ：通过真空抽吸，压缩空气压力或真空/空气压力，通过在模具的内表面附着而形成所述薄片，其条件是：（3）模具温度T2设定在从玻璃化转变温度Tg 将L-乳酸基聚合物保持在保持温度T1，并且在将模具的内部温度降低到Tg之后从模具中取出成形产品。
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公开(公告)号：US5763513A
公开(公告)日：1998-06-09
申请号：US434540
申请日：1995-05-04
摘要： A lactic acid polymer composition comprising formulating 100 parts by weight of a mixture consisting of 80-95% by weight of an L-lactic acid polymer having an L-lactic acid proportion of 75% or more and 5-20% by weight of a plasticizer selected from the group consisting of a polyhydric alcohol ester and a hydroxypolycarboxylic acid ester, 0.1-5 parts by weight of an anti-bloking agent having a SiO.sub.2 content of 90% or more and an average particle size of 7-50 nm, and 0.1-2 parts by weight of a slip agent; a molded product and film obtained from the composition; and a preparation process of the same are disclosed. The molded product and film are excellent in processability, transparency, flexibility, anti-blocking property and slip, and can be degraded into harmless water and carbon dioxide under natural environment, when abandoned.
摘要翻译： 一种乳酸聚合物组合物，其包含配制100重量份的由80-95重量％的L-乳酸比例为75％以上的L-乳酸聚合物和5-20重量％的由 选自多元醇酯和羟基多羧酸酯的增塑剂，0.1-5重量份SiO 2含量为90％以上，平均粒径为7-50nm的抗血清剂，以及 0.1-2重量份的滑爽剂; 由该组合物获得的成型品和膜; 并公开了其制备方法。 成型品和膜的加工性，透明性，柔软性，防粘连性和滑爽性优异，在被废弃时可以在自然环境下降解成无害的水和二氧化碳。
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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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