公开(公告)号：US5763098A

公开(公告)日：1998-06-09

申请号：US892265

申请日：1997-07-14

Applicant: Taiji Kameoka ,  Takeshi Kashima ,  Masanobu Ajioka ,  Akihiro Yamaguchi ,  Kazuhiko Suzuki

Inventor： Taiji Kameoka ,  Takeshi Kashima ,  Masanobu Ajioka ,  Akihiro Yamaguchi ,  Kazuhiko Suzuki

IPC: B32B27/10 ,  B32B27/36 ,  C08G63/16 ,  C08G63/60 ,  C08G63/81 ,  C08L67/00 ,  C08L67/02 ,  D04H1/42 ,  D04H13/00 ,  D06N7/04 ,  C08G63/02

CPC classification number: C08L67/02 ,  B32B27/10 ,  B32B27/36 ,  C08G63/16 ,  C08G63/60 ,  C08G63/81 ,  C08L67/00 ,  D04H1/4258 ,  D04H1/435 ,  C08L2201/06 ,  Y10T428/24355 ,  Y10T428/249921 ,  Y10T428/2913 ,  Y10T428/3179

Abstract: Formed products such as foams, fabrics for industrial materials, filaments, nonwoven fabrics, composite materials and films which are degradable after use with ease in the natural environment are prepared by using a high molecular weight aliphatic polyester obtained by direct polycondensation of an aliphatic polyhydric alcohol with aliphatic polybasic acid or additionally hydroxycarboxylic acid or oligomers of these materials in a reaction mixture containing a solvent. Foams have excellent thermal insulation and strength; fabrics are excellent in thermal insulation, strength and elongation and can be used for industrial materials; filaments have sufficient strength, flexibility and degradability in a living body and can be used for bioabsorbable surgical filament and fishing lines; nonwoven fabrics can be obtained by bonding a web of filaments and have excellent strength and feeling; composite materials can be prepared by adhering or impregnating fiber, paper, film and others of cellulosics and have excellent strength and water resistance, good flexibility and folding resistance, simultaneously have degradability in the natural environment, and can dissolve polymer films on the surface with ease under alkaline conditions to recover cellulosics alone; and films are excellent in heat resistance and strength.

Abstract translation: 通过使用通过脂肪族多元醇的直接缩聚得到的高分子量脂肪族聚酯，可以制备如在天然环境中容易使用后可降解的泡沫，工业用材料，长丝，无纺布，复合材料和薄膜等成型产品 与脂族多元酸或另外的羟基羧酸或这些物质的低聚物在含有溶剂的反应混合物中。 泡沫具有优良的保温和强度; 织物绝热性，强度和伸长率优良，可用于工业材料; 细丝在活体中具有足够的强度，柔韧性和降解性，可用于生物可吸收的手术细丝和钓鱼线; 非织造织物可以通过粘合丝网而获得，并且具有优异的强度和感觉; 复合材料可以通过粘合或浸渍纤维素的纤维，纸，膜等而具有优异的强度和耐水性，良好的柔韧性和耐折叠性，同时在天然环境中具有降解性，并且可以容易地溶解表面上的聚合物膜 在碱性条件下单独回收纤维素; 并且膜的耐热性和强度优异。

公开(公告)号：US5720803A

公开(公告)日：1998-02-24

申请号：US701692

申请日：1996-08-22

Applicant: Masanori Itoh ,  Atsunobu Kiyose ,  Katsumi Hirao

Inventor： Masanori Itoh ,  Atsunobu Kiyose ,  Katsumi Hirao

IPC: A24D3/10 ,  C08L1/10 ,  C08L1/12 ,  C08L67/00 ,  C08L1/08

CPC classification number: C08L1/12 ,  A24D3/068 ,  A24D3/10 ,  C08L1/10 ,  C08L2201/06 ,  C08L67/00 ,  Y10T428/31971

Abstract: The composition comprising a cellulose ester including at least 10 weight % of a low-substituted cellulose ester having an average degree of substitu- tion not exceeding 2.15 and giving a 4-week decomposition rate of at least 60 weight % as determined using the amount of evolution of carbon dioxide as an indicator in accordance with ASTM 125209-91. The composition may contains a plasticizer, an aliphatic polyester, a photolysis accelerator such as anatase type titanium dioxide or a biodegradation accelerator such as organic acids and their esters. The low-substituted cellulose ester may be a cellulose ester having an average degree of polymerization from 50 to 250, an average degree of substitution from 1.0 to 2.15 and a residual alkali metal/alkaline earth metal-to-residual sulfuric acid equivalent ratio of 0.1 to 1.1. The biodegradable cellulose ester composition is suitable for the manufacture of various articles including fibrous articles such as tobacco filters.

Abstract translation: 所述组合物包含纤维素酯，所述纤维素酯包含平均取代度不超过2.15的至少10重量％的低取代的纤维素酯，并且给出4周的分解率为至少60重量％ 根据ASTM 125209-91，二氧化碳的演变作为指标。 组合物可以含有增塑剂，脂肪族聚酯，光解促进剂如锐钛矿型二氧化钛或生物降解促进剂如有机酸及其酯。 低取代的纤维素酯可以是平均聚合度为50〜250，平均取代度为1.0〜2.15，残留的碱金属/碱土金属与残余硫酸的当量比为0.1的纤维素酯 至1.1。 可生物降解的纤维素酯组合物适用于制造包括诸如烟草过滤器在内的纤维制品的各种制品。

公开(公告)号：US5719203A

公开(公告)日：1998-02-17

申请号：US776905

申请日：1997-02-14

Applicant: Michael Thobor

Inventor： Michael Thobor

IPC: C08J3/20 ,  B29B9/12 ,  C08L1/00 ,  C08L1/02 ,  C08L3/00 ,  C08L3/02 ,  C08L21/00 ,  C08L67/04 ,  C08L101/16 ,  B29C45/46 ,  C08L7/00

CPC classification number: C08L21/00 ,  C08L1/02 ,  C08L3/02 ,  C08L67/04 ,  B29K2995/0059 ,  C08L2201/06

Abstract: A method of producing a composition which is composed of from 5 to 50 wt. % of caoutchouc, preferably natural caoutchouc; from 4 to 25 wt. % of starch powder; from 10 to 50 wt. % of one of polybetahydroxybutyrate or cellulose; and from 0 to 15 wt. % of auxiliary agent, and which is biodegradable includes providing caoutchouc in one of flaked or granular form; providing initial materials selected from the group consisting of starch, polybetahydroxybutyrate, cellulose, and auxiliary agent, in ground form as one of a powder or granulated; homogeneously mixing the initial materials into the caoutchouc to provide a homogeneous mixture: plasticizing the homogeneous mixture by heating in one of a screw-type extruder or injection molding machine to provide a plasticized mass; and ejecting the plasticized mass from the extruder or injection-molding machine and allowing the mass to cool. Preferably, plasticizing is carried out of a temperature ranging from 170.degree. C. to 180.degree. C.

Abstract translation: PCT No.PCT / EP95 / 03388 Sec。 371日期1997年2月14日 102（e）1997年2月14日PCT PCT 1995年8月28日PCT公布。 公开号WO96 / 06886 日期：1996年3月7日一种制备组合物的方法，该组合物由5至50wt。 花生的百分比，优选天然花椰菜; 4至25wt。 ％淀粉粉; 10至50wt。 多羟基丁酸酯或纤维素的一种; 和0至15wt。 辅助剂的％，其是可生物降解的，包括以片状或颗粒形式提供切割; 提供选自淀粉，聚羟基丁酸酯，纤维素和助剂的初始材料，其为粉末或颗粒之一的研磨形式; 将初始材料均匀地混合到橡胶中以提供均匀的混合物：通过在螺杆式挤出机或注射成型机之一中加热而使均匀混合物增塑以提供增塑物质; 并从挤出机或注射成型机中排出增塑物质并使物料冷却。 优选地，在170℃至180℃的温度下进行增塑。

公开(公告)号：US5691403A

公开(公告)日：1997-11-25

申请号：US531653

申请日：1995-09-21

Applicant: Tetsuya Shitaohzono ,  Akira Muramatsu ,  Jiro Hino

Inventor： Tetsuya Shitaohzono ,  Akira Muramatsu ,  Jiro Hino

IPC: C08L3/00 ,  C08L67/04 ,  C08L101/00 ,  C08L3/02

CPC classification number: C08L3/00 ,  C08L101/00 ,  C08L67/04 ,  C08L2201/06

Abstract: Disclosed is biodegradable compositions comprising a biodegradable resin and starch, wherein fat or oil treated starch or its gelatinized product is utilized as the starch and thereby its production cost and biodegradability is improved without losing its mechanical properties. Biodegradable compositions comprising a gelatinized product of fat or oil treated starch and a biodegradable resin. A process for the production of the biodegradable composition comprising a gelatinized fat or oil treated starch and a biodegradable resin described above, which comprises heating and kneading fat or oil treated starch and a biodegradable resin in the presence of water or water and a plasticizer.

Abstract translation: 公开了包含可生物降解的树脂和淀粉的可生物降解的组合物，其中将脂肪或油处理的淀粉或其糊化产物用作淀粉，从而改善其生产成本和生物降解性而不损失其机械性能。 包含脂肪或油处理的淀粉的糊化产物和可生物降解的树脂的可生物降解的组合物。 一种生物降解性组合物的制造方法，其特征在于，含有糊化脂肪或油处理淀粉和上述可生物降解树脂，其包括在水或水和增塑剂的存在下加热和捏合脂肪或油处理的淀粉和可生物降解的树脂。

公开(公告)号：US5534150A

公开(公告)日：1996-07-09

申请号：US245065

申请日：1994-05-17

Applicant: Catia Bastioli ,  Vittorio Bellotti

Inventor： Catia Bastioli ,  Vittorio Bellotti

IPC: A61L15/22 ,  A61L15/62 ,  B01D61/36 ,  B01D71/08 ,  B01D71/38 ,  C08L3/02 ,  C08L29/04 ,  C08L67/04 ,  C08L75/04 ,  C08L75/06 ,  C08L87/00

CPC classification number: B01D61/362 ,  A61L15/225 ,  A61L15/62 ,  B01D71/08 ,  B01D71/38 ,  C08L29/04 ,  C08L3/02 ,  C08L67/04 ,  C08L75/04 ,  C08L87/00 ,  C08L2201/06 ,  C08L75/06

Abstract: A selectively-permeable membrane constituted by a composition comprising starch and a synthetic thermoplastic polymer is used for separating liquid aqueous-organic mixtures by pervaporation.

Abstract translation: 由包含淀粉和合成热塑性聚合物的组合物构成的选择性渗透膜用于通过渗透蒸发来分离液体含水 - 有机混合物。

公开(公告)号：US5449708A

公开(公告)日：1995-09-12

申请号：US82916

申请日：1993-06-25

Applicant: David C. Schiltz

Inventor： David C. Schiltz

IPC: C08L3/02 ,  C08L23/08 ,  C08L3/00 ,  C08L89/00

CPC classification number: C08L3/02 ,  C08L2201/06 ,  C08L23/08 ,  C08L23/0815

Abstract: A method for continuous preparation of a starch-based biodegradable polymer. A homogeneous mixture of starch, an ethylene acrylic acid co-polymer, and a salt of stearic acid are premixed before addition of an aqueous lubricant material. An increase in temperature gelatinizes the starch and melts the co-polymer. Excess moisture is removed under reduced pressure and a plastic material is extruded.

Abstract translation: 一种用于连续制备淀粉基可生物降解聚合物的方法。 在加入水性润滑剂材料之前将淀粉，乙烯丙烯酸共聚物和硬脂酸盐的均匀混合物预混合。 温度的升高使淀粉糊化并熔化共聚物。 在减压下除去过多的水分，并挤出塑性材料。

公开(公告)号：US5444107A

公开(公告)日：1995-08-22

申请号：US917351

申请日：1992-07-23

Applicant: Masanobu Ajioka ,  Katashi Enomoto ,  Akihiro Yamaguchi ,  Hosei Shinoda

Inventor： Masanobu Ajioka ,  Katashi Enomoto ,  Akihiro Yamaguchi ,  Hosei Shinoda

IPC: C08L3/00 ,  C08L3/04 ,  C08L67/00 ,  C08L67/04 ,  C08L101/16 ,  C08K5/00

CPC classification number: C08L3/00 ,  C08L3/04 ,  C08L67/04 ,  C08L2201/06

Abstract: A degradable polymer composition essentially consisting of a mixture of a thermoplastic polymer composition primarily comprising polylactic acid or lactic acid-hydroxycarboxylic acid copolymer and one or more substance selected from starch and modified starch, and is a degradable polymer which does not cause problems such as environmental pollution and can be used for films, filaments and packaging materials, food packaging materials in particular.

Abstract translation: 一种可降解聚合物组合物，其主要由主要包含聚乳酸或乳酸 - 羟基羧酸共聚物的热塑性聚合物组合物和选自淀粉和改性淀粉的一种或多种物质的混合物组成，并且是不会引起诸如环境的问题的可降解聚合物 污染，可用于薄膜，细丝和包装材料，特别是食品包装材料。

公开(公告)号：US5393804A

公开(公告)日：1995-02-28

申请号：US71429

申请日：1993-06-10

Applicant: Eric George ,  Eddie Park ,  Paul A. Altieri ,  Charles W. Paul

Inventor： Eric George ,  Eddie Park ,  Paul A. Altieri ,  Charles W. Paul

IPC: C08J9/12 ,  C08L3/02 ,  C08L29/04 ,  C08L3/00

CPC classification number: C08J9/125 ,  C08L29/04 ,  C08L3/02 ,  C08J2303/02 ,  C08L2201/06

Abstract: There is provided a biodegradable composition as obtained from a melt comprising converted starch, a plasticizer and at least one member selected from alkenol homopolymers and/or alkenol copolymers which are combined under conditions sufficient to ensure uniform melt formation, in which the at least one member is present in the composition at a concentration of from 10 to 200 parts per 100 parts of dry converted starch.The invention further relates to methods of making the composition, and to articles made from said composition.

Abstract translation: 提供了一种由包含转化淀粉，增塑剂和至少一种选自烯醇均聚物和/或链烯醇共聚物的组分得到的可生物降解的组合物，其在足以确保均匀熔体形成的条件下组合，其中至少一种成分 以每100份干燥转化淀粉10至200份的浓度存在于组合物中。 本发明还涉及制备组合物的方法以及由所述组合物制成的制品。

公开(公告)号：US5378738A

公开(公告)日：1995-01-03

申请号：US78296

申请日：1993-06-25

Applicant: Tetsuya Deguchi ,  Tomoaki Nishida ,  Yoshimasa Takahara

Inventor： Tetsuya Deguchi ,  Tomoaki Nishida ,  Yoshimasa Takahara

IPC: C08K5/00 ,  C08L101/00 ,  C12P1/00 ,  C08J11/00 ,  C12P1/04 ,  C12N1/00

CPC classification number: C08K5/0033 ,  C08L101/00 ,  C12P1/00 ,  C08L2201/06

Abstract: A biodegradable plastic added at an amount of a hydrophilic property imparting-substance providing wettability such that the contact angle of plastic surface to water is 70.degree. or less whereby the decomposability thereof with Basidiomycetes, the cultured products thereof and/or the processed products thereof is improved. A method for decomposing plastic under the conditions with limitation to nitrogen and/or carbon in decomposing such biodegradable plastic. In accordance with the present invention, the plastic which has conventionally been decomposed with difficulty can be decomposed efficiently.

Abstract translation: PCT No.PCT / JP92 / 01411 Sec。 371日期：1993年6月25日 102（e）日期1993年6月25日PCT提交1992年10月30日PCT公布。 出版物WO93 / 09184 日期：1993年5月13日。一种生物降解性塑料，其以提供润湿性的亲水性赋予物质的量添加，使得塑料表面与水的接触角为70℃以下，由此其与担子菌纲的分解性，其培养产物和/ 或者其加工产物得到改善。 在分解这种生物可降解塑料的条件下，限制氮和/或碳的分解塑料的方法。 根据本发明，通常难以分解的塑料可以有效地分解。

公开(公告)号：US5342862A

公开(公告)日：1994-08-30

申请号：US166358

申请日：1993-12-13

Applicant: Murray H. Reich

Inventor： Murray H. Reich

IPC: C08K3/04 ,  C08K5/3435 ,  C08L9/00 ,  C08L23/06 ,  C08L23/10 ,  C08L23/16 ,  C08K5/34 ,  C08L23/12

CPC classification number: C08K3/04 ,  C08K5/3435 ,  C08L23/10 ,  C08L2201/06 ,  C08L2205/02 ,  C08L2205/03 ,  C08L2205/035 ,  C08L23/06 ,  C08L23/16 ,  C08L9/00

Abstract: Process for controlling the photodegradation of a film of polypropylene or propylene copolymers having a thickness of about 1.25 mils or less, by forming a composition comprising carbon black as the sole UV light absorbing staiblizer and comprising about 0.5% to about 2.4% by weight of the film, hindered amine light stabilizer for interrupting the free radical chain degradation mechanism and comprising about 0.02% to about 0.4% by weight of the film; and an impact modifier for enhancing the photodegradability of the film and comprising about 1% to 40% by weight of the film.

Abstract translation: 通过形成包含炭黑作为唯一的UV光吸收稳定剂的组合物来控制具有约1.25密尔或更小的厚度的聚丙烯或丙烯共聚物的膜的光降解的方法，并且包含约0.5重量％至约2.4重量％ 膜，受阻胺光稳定剂，用于中断自由基链降解机理并且包含约0.02重量％至约0.4重量％的膜; 和用于提高膜的光降解性的抗冲改性剂，其含有约1％至40％（重量）的膜。