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公开(公告)号：US5262458A
公开(公告)日：1993-11-16
申请号：US613506
申请日：1990-11-05
申请人： Catia Bastioli , Vittorio Bellotti , Luciano del Giudice , Gianfranco del Tredici , Roberto Lombi , Angelos Rallis
发明人： Catia Bastioli , Vittorio Bellotti , Luciano del Giudice , Gianfranco del Tredici , Roberto Lombi , Angelos Rallis
IPC分类号： A61F13/15 , C08B30/12 , C08K5/16 , C08K5/21 , C08L1/00 , C08L3/00 , C08L3/02 , C08L23/08 , C08L33/04 , C08L33/06 , C08L101/16
CPC分类号： C08L3/02 , C08B30/12 , C08L23/0869 , A61F13/15252
摘要： Formed articles comprising destructurized starch, an ethylene-acrylic acid copolymer and a product of the interaction of starch and ethylene-acrylic acid copolymer wherein the starch not bound to the copolymer is in the form of particles having sizes below 1 micron. The water content of such articles is lower than the one usually present in the starch. Said formed articles can also contain urea in an amount no higher than 30% by weight and/or ammonia in an amount not higher than 0.5% by weight. The process for obtaining such articles comprises the steps of extruding starch, an ethylene-acrylic acid copolymer and optionally water, urea and/or ammonia at a temperature ranging from 90.degree. to 150.degree. C., reducing the water content to values lower than 6% by weight and injection molding or extrusion blowing the resulting composition.
摘要翻译： PCT No.PCT / EP90 / 00375 Sec。 371日期1990年11月5日 102（e）1990年11月5日日期PCT 1990年3月8日PCT PCT。 WO90 / 10671 PCT出版物 日期为1990年9月20日。包含变性淀粉，乙烯 - 丙烯酸共聚物和淀粉与乙烯 - 丙烯酸共聚物的相互作用的产物的成型制品，其中未与共聚物结合的淀粉为具有以下尺寸的颗粒形式 1微米。 这些制品的含水量低于淀粉中通常存在的含水量。 所述成形制品还可以含有不高于30重量％的量的尿素和/或不高于0.5重量％的氨。 获得这种制品的方法包括在90℃至150℃的温度范围内挤出淀粉，乙烯 - 丙烯酸共聚物和任选的水，尿素和/或氨的步骤，将水含量降低至低于6 重量％，注射成型或挤出吹制所得组合物。
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2.发明授权Expanded articles of biodegradable plastics materials and a method for their production 失效可生物降解塑料材料的膨胀制品及其生产方法
公开(公告)号：US5288765A
公开(公告)日：1994-02-22
申请号：US972875
申请日：1992-11-04
CPC分类号： C08J9/0061 , C08L23/0846 , C08L3/02 , C08J2303/02 , C08J2403/00 , C08L2205/03 , C08L23/0861 , C08L23/0869 , C08L29/04 , Y10S521/916
摘要： Expanded articles of biodegradable plastics are produced by the extrusion of a composition including starch, a polymer compatible with starch, in particular, an ethylene-acrylic acid copolymer and/or ethylene-vinyl alcohol copolymer, and an expanding agent. Preferably use is made of sodium bicarbonate as expanding agent in the presence of a polymeric acid.
摘要翻译： 可生物降解塑料的膨胀制品是通过挤出包括淀粉，与淀粉相容的聚合物，特别是乙烯 - 丙烯酸共聚物和/或乙烯 - 乙烯醇共聚物和膨胀剂的组合物来生产的。 优选在聚合酸存在下使用碳酸氢钠作为发泡剂。
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公开(公告)号：US5360830A
公开(公告)日：1994-11-01
申请号：US198510
申请日：1994-02-18
CPC分类号： C08J9/0061 , C08L23/0846 , C08L3/02 , C08J2303/02 , C08J2403/00 , C08L2205/03 , C08L23/0861 , C08L23/0869 , C08L29/04 , Y10S521/916
摘要： Expanded articles of biodegradable plastic material having a closed pore structure and a density of from 0.01 to less than 0.1 g/cm.sup.3 are produced by extrusion of a composition including starch and a synthetic polymer selected from ethylene-vinyl alcohol, ethylene-acrylic acid, and mixture thereof.
摘要翻译： 具有闭孔结构和密度为0.01至小于0.1g / cm 3的可生物降解的塑料材料的膨胀制品是通过挤出包含淀粉和合成聚合物的组合物制备的，所述组合物包括选自乙烯 - 乙烯醇，乙烯 - 丙烯酸和 的混合物。
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公开(公告)号：US5589518A
公开(公告)日：1996-12-31
申请号：US469566
申请日：1995-06-06
CPC分类号： C08J9/228 , B29C67/205 , C08J9/0061 , C08J9/125 , C08J9/236 , C08J2303/02
摘要： Biodegradable foamed articles having density comprised from 5 to 300 kg/m.sup.3 obtained by agglomeration of foamed particles having composition comprising a thermoplastic starchy material or a thermoplastic natural polymer capable of absorbing water when converted into the thermoplastic state, a thermoplastic polymer, and water.
摘要翻译： 可生物降解的泡沫制品，其密度为5至300kg / m 3，其通过具有包含热塑性淀粉材料或热塑性天然聚合物的热塑性天然聚合物的发泡颗粒的聚集而获得，所述组合物当转化成热塑性状态时能够吸收水分，热塑性聚合物和水。
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公开(公告)号：US5801207A
公开(公告)日：1998-09-01
申请号：US708207
申请日：1996-09-06
CPC分类号： C08J9/228 , B29C67/205 , C08J9/0061 , C08J9/125 , C08J9/236 , C08J2303/02
摘要： Biodegradable foamed articles having density comprised from 5 to 300 kg/m.sup.3 obtained by agglomeration of foamed particles having composition comprising a thermoplastic starchy material or a thermoplastic natural polymer capable of absorbing water when converted into the thermoplastic state, a thermoplastic polymer, and water.
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6.发明授权公开(公告)号：US06348524B2
公开(公告)日：2002-02-19
申请号：US09335238
申请日：1999-06-17
IPC分类号： C08J304
CPC分类号： C08J5/18 , C08J2367/02 , C08J2367/04 , C08L3/02 , C08L67/02 , C08L67/04 , C08L77/12 , C08L2666/02 , C08L2666/26
摘要： Heterophasic compositions comprising starch and a thermoplastic polymer that is incompatible with the starch, in which the starch constitutes the discontinuous phase and the thermoplastic polymer the continuous matrix, having an impact strength greater than 30 KJ/m2 (measured on blown film of 30 microns thick at 10° C. and RH less than 5%), and further characterised by the presence in the X-ray diffraction spectrum of a peak at an angle 2-theta from 13 to 14° the ratio of the intensity of which to that of the peak of the amorphous starch which occurs at 20.5°, is less than 2 and greater than 0.02.
摘要翻译： 包含淀粉和与淀粉不相容的热塑性聚合物的多相组合物，其中淀粉构成不连续相，热塑性聚合物是连续基质，其冲击强度大于30KJ / m 2（在30微米厚的吹塑薄膜上测量） 在10℃，RH小于5％时），并且进一步的特征在于在X射线衍射光谱中存在角度为2°至13°的角度的峰，其强度与 发生在20.5°的无定形淀粉的峰值小于2并且大于0.02。
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7.发明授权Method of producing plasticized polyvinyl alcohol and its use for the preparation of starch-based, biodegradable thermoplastic compositions 失效生产增塑聚乙烯醇的方法及其用于制备淀粉基可生物降解的热塑性组合物的用途
公开(公告)号：US5462981A
公开(公告)日：1995-10-31
申请号：US280150
申请日：1994-07-25
IPC分类号： C08J3/20 , C08J3/18 , C08K5/00 , C08L1/00 , C08L3/00 , C08L3/02 , C08L23/02 , C08L23/26 , C08L29/04 , C08L29/14 , C08L31/04 , C08L101/16
CPC分类号： C08J3/18 , C08K5/0016 , C08J2329/04
摘要： The method of producing plasticized polyvinyl alcohol by mixing polyvinyl alcohol in the presence of an organic plasticizer and water in a quantity which is insufficient to dissolve the polyvinyl alcohol under normal conditions, includes the steps of:i) pre-plasticizing the polyvinyl alcohol at a maximum temperature no higher than its softening point so as to produce a pre-plasticized polyvinyl alcohol having a melting point below the softening point of the polyvinyl alcohol used, andii) further processing the pre-plasticized polyvinyl alcohol thus produced at a temperature above its melting point, under shear-stress conditions and for a period of time to produce a substantially homogeneous melt.
摘要翻译： 在有机增塑剂和水的存在下，通过在有机增塑剂和水的存在下以不足以溶解聚乙烯醇的量混合聚乙烯醇来生产增塑的聚乙烯醇的方法包括以下步骤：i）将聚乙烯醇预塑化 最高温度不高于其软化点，以便产生熔点低于所使用的聚乙烯醇的软化点的预塑化聚乙烯醇，和ii）进一步加工在其高于其的温度下制得的预塑化聚乙烯醇 熔点，在剪切应力条件下和一段时间以产生基本均匀的熔体。
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8.发明授权Film-forming, starchy, polymeric composition and shaped articles, particularly films and sheets, which can be produced from the composition and have a good barrier effect, and a method of producing the articles 失效成膜，淀粉，聚合物组合物和成型制品，特别是可以由组合物制备并具有良好屏障效果的薄膜和片材，以及制造制品的方法
公开(公告)号：US5462980A
公开(公告)日：1995-10-31
申请号：US027190
申请日：1993-03-05
申请人： Catia Bastioli , Vittorio Bellotti , Gianfranco Del Tredici , Alessandro Montino , Roberto Ponti
发明人： Catia Bastioli , Vittorio Bellotti , Gianfranco Del Tredici , Alessandro Montino , Roberto Ponti
IPC分类号： B29C55/02 , A61L15/22 , A61L15/62 , B01D61/36 , B01D71/08 , C08J5/18 , C08L3/00 , C08L3/02 , C08L3/14 , C08L29/04 , C08L67/04 , C08L75/04 , C08L75/06 , C08L87/00 , C08L101/00 , D06M11/00 , D06M13/02 , D06M13/148 , D06M13/224 , D06M15/11 , D06M23/00 , D06M101/00 , D06M101/02 , D06M101/06 , D06M101/08 , D06M101/10 , D06M101/16 , D06M101/18 , D06M101/20 , D06M101/22 , D06M101/24 , D06M101/30 , D06M101/32 , C08K5/10 , C08K5/11
CPC分类号： C08L67/04 , A61L15/225 , A61L15/62 , B01D61/36 , B01D71/08 , C08L3/02 , C08L75/04 , C08L87/00 , C08L2201/06 , C08L29/04 , C08L75/06
摘要： The film-forming polymeric compositions described include a synthetic, thermoplastic polymer and a starchy material, with a high amylopectin content; they enable the production of films, sheets and the like having good liquid- and gas-barrier effects and improved mechanical properties.
摘要翻译： 所述的成膜聚合物组合物包括具有高支链淀粉含量的合成的热塑性聚合物和淀粉质材料; 它们能够生产具有良好的液体和气体阻隔效应和改善的机械性能的膜，片等。
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9.发明授权
公开(公告)号：US5409973A
公开(公告)日：1995-04-25
申请号：US56613
申请日：1993-05-03
CPC分类号： C08L29/04 , C08L3/02 , C08L31/04 , C08L33/06 , C08L23/0853 , C08L23/0861 , C08L23/0869
摘要： Biodegradable compositions comprising destructured starch and an ethylene-vinyl acetate copolymer are prepared by mixing the starch and the copolymer in an extruder heated to a temperature of between 80.degree. and 180.degree. C. and bringing the water content to below 6% and any ammonia content to below 0.2% by weight. The composition fed to the extruder may optionally include up to 40% by weight of an ethylene-vinyl alcohol polymer, as well as a starch destructuring agent and a high boiling plasticizer.
摘要翻译： 包含去结晶淀粉和乙烯 - 乙酸乙烯酯共聚物的生物可降解组合物是通过在加热至80-180℃的挤出机中混合淀粉和共聚物并使水含量低于6％并将任何氨含量 至0.2重量％以下。 进料到挤出机的组合物可以任选地包括至多40重量％的乙烯 - 乙烯醇聚合物，以及淀粉破坏剂和高沸点增塑剂。
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公开(公告)号：US5736586A
公开(公告)日：1998-04-07
申请号：US512673
申请日：1995-08-08
申请人： Catia Bastioli , Vittorio Bellotti , Gianfranco Del Tredici , Alessandro Montino , Roberto Ponti
发明人： Catia Bastioli , Vittorio Bellotti , Gianfranco Del Tredici , Alessandro Montino , Roberto Ponti
IPC分类号： C08J9/02 , C08J9/00 , C08J9/04 , C08J9/12 , C08J9/228 , C08L1/00 , C08L1/08 , C08L3/02 , C08L101/16
CPC分类号： C08J9/228 , B29C47/6087 , C08J9/0061 , C08J9/125 , C08L3/02 , C08J2303/02 , C08L2201/06
摘要： Biodegradable foamed plastic material having a bulk density comprised within the range of from 5 to 13 kg/m.sup.3, comprising: 30-99.5 by weight of polisaccharide containing more than 50% of thermoplastic starch or starch complexed by polimeric structures, having an intrinsic viscosity (in DMSO) lower than 1.3 dl/g and less than 20% by weight of soluble fraction in ethanol; 0.5-70% by weight of a thermoplastic polymer which is soluble in starch, or is capable of complexing it; 0-20% by weight of water. The material can be used as a loose filler or for other foamed articles.
摘要翻译： 堆积密度在5至13kg / m 3范围内的可生物降解的泡沫塑料材料包括：30-99.5重量％的含有超过50％热塑性淀粉或通过聚合物结构复合的淀粉的聚糖，其特性粘度（ 在DMSO中）低于1.3dl / g且小于20wt％的可溶成分在乙醇中; 0.5-70重量％的可溶于淀粉的热塑性聚合物，或能够络合它; 0-20重量％的水。 该材料可用作松散填料或其它发泡制品。
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