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    Binary mixtures of biodegradable aliphatic polyesters and products obtained from these
    3.
    发明授权
    Binary mixtures of biodegradable aliphatic polyesters and products obtained from these 有权
    可生物降解的脂肪族聚酯的二元混合物和从其获得的产品

    公开(公告)号：US07645839B2

    公开(公告)日：2010-01-12

    申请号：US10470098

    申请日：2002-01-25

    申请人： Catia Bastioli ,  Gianfranco Del Tredici ,  Italo Guanella ,  Giovanni Floridi ,  Roberto Ponti

    发明人： Catia Bastioli ,  Gianfranco Del Tredici ,  Italo Guanella ,  Giovanni Floridi ,  Roberto Ponti

    IPC分类号： C08G63/00

    CPC分类号： C08L67/02 ,  C08L67/04 ,  Y10T428/1334 ,  Y10T428/1352 ,  Y10T428/1397

    摘要： A biodegradable mixture obtained by melt mixing polyesters comprising (A) an aliphatic polyester obtained from aliphatic diacids selected from the group consisting of azelaic acid, sebacic acid, brassilic acid, mixtures thereof and mixtures of said acids with aliphatic dicarbossilic acids and/or aliphatic hydroxyacids containing more than 50 mole % of azelaic acid, sebacic acid and brassilic acid, and from aliphatic diols; (B) a polymer of lactic acid in which the concentration by weight of A with respect to (A+B) is in the range of 30 to 60% and in which the sum of the fusion entalpy ΔHA and ΔHB of the two polyesters in the mixture is greater than the sum of the fusion entalpies ΔH1 and ΔH2 of the polyesters prior to melt mixing.

    摘要翻译： 通过熔融混合聚酯得到的可生物降解的混合物，其包含（A）由脂族二酸获得的脂族聚酯，所述脂族二元酸选自壬二酸，癸二酸，胆汁酸，其混合物，以及所述酸与脂族二碳硅酸和/或脂族羟基酸的混合物 含有超过50摩尔％的壬二酸，癸二酸和胆汁酸，以及脂族二醇; （B）乳酸聚合物，其中相对于（A + B）的A的重量浓度在30至60％的范围内，并且其中两个聚酯的熔融夹角DeltaHA和DeltaHB的总和在 该混合物大于在熔融混合之前的聚酯的熔融夹心ΔH1和ΔH2的总和。

    Binary mixtures of biodegradable aliphatic polyesters and products obtained from these
    5.
    发明申请
    Binary mixtures of biodegradable aliphatic polyesters and products obtained from these 有权
    可生物降解的脂肪族聚酯的二元混合物和从其获得的产品

    公开(公告)号：US20050090625A1

    公开(公告)日：2005-04-28

    申请号：US10470098

    申请日：2002-01-25

    申请人： Catia Bastioli ,  Gianfranco Del Tredici ,  Italo Guanella ,  Giovanni Floridi ,  Roberto Ponti

    发明人： Catia Bastioli ,  Gianfranco Del Tredici ,  Italo Guanella ,  Giovanni Floridi ,  Roberto Ponti

    IPC分类号： C08L67/02 ,  C08L67/04

    CPC分类号： C08L67/02 ,  C08L67/04 ,  Y10T428/1334 ,  Y10T428/1352 ,  Y10T428/1397

    摘要： A biodegradable mixture obtained by melt mixing polyesters comprising (A) an aliphatic polyester obtained from aliphatic diacids selected from the group consisting of azelaic acid, sebacic acid, brassilic acid, mixtures thereof and mixtures of said acids with aliphatic dicarbossilic acids and/or aliphatic hydroxyacids containing more than 50 mole % of azelaic acid, sebacic acid and brassilic acid, and from aliphatic diols; (B) a polymer of lactic acid in which the concentration by weight of A with respect to (A+B) is in the range of 30 to 60 % and in which the sum of the fusion entalpy ΔHA and ΔHB of the two polyesters in the mixture is greater than the sum of the fusion entalpies ΔH1 and ΔH2 of the polyesters prior to melt mixing.

    摘要翻译： 通过熔融混合聚酯得到的可生物降解的混合物，其包含（A）由脂族二酸获得的脂族聚酯，所述脂族二元酸选自壬二酸，癸二酸，胆汁酸，其混合物，以及所述酸与脂族二碳硅酸和/或脂族羟基酸的混合物 含有超过50摩尔％的壬二酸，癸二酸和胆汁酸，以及脂族二醇; （B）乳酸聚合物，其中相对于（A + B）的A的重量浓度在30至60％的范围内，并且其中熔融导数ΔH >和混合物中两种聚酯的ΔHB大于熔融混合前聚酯的熔融夹心ΔH1 H 2和ΔH2 H 2的总和。

    Biodegradable compositions and films or moulded articles obtained therefrom
    9.
    发明授权
    Biodegradable compositions and films or moulded articles obtained therefrom 失效
    可生物降解的组合物和由其获得的薄膜或模制品

    公开(公告)号：US5569692A

    公开(公告)日：1996-10-29

    申请号：US517398

    申请日：1995-08-21

    申请人： Catia Bastioli ,  Roberto Lombi ,  Gianfranco Del Tredici ,  Italo Guanella

    发明人： Catia Bastioli ,  Roberto Lombi ,  Gianfranco Del Tredici ,  Italo Guanella

    IPC分类号： C08B31/00 ,  B29C47/00 ,  C08B30/12 ,  C08L3/00 ,  C08L3/02 ,  C08L101/16 ,  C08L89/06 ,  C08L101/00

    CPC分类号： C08B30/12 ,  B29C47/0004 ,  C08L3/02 ,  B29C47/0011 ,  B29C47/0021

    摘要： In order to prepare a starch-based composition usable for the production of articles of biodegradable plastics material, a starch is mixed in a heated extruder with a high-boiling plasticizer and a destructuring agent for a time sufficient to cause the starch to be destructured, in dependence on the destructuring agent used, at a temperature below the boiling point of the plasticizer used and between 120.degree. and 170.degree. C.The composition thus obtained is particularly suitable for the formulation of polymer mixtures with polymers which have relatively high melting points, since it can be processed at temperatures higher than 120.degree. C. and is suitable for extrusion at low pressure with these polymers. In particular, compositions thus obtained and mixed with polyvinyl alcohol and/or ethylene vinyl alcohol are suitable for the formation of films by blow-extrusion, since they have the desired characteristics of mechanical strength and resistance to tearing and perforation, or for the formation of articles finished by injection moulding, thermoforming or blowing.

    摘要翻译： 为了制备可用于生产可生物降解的塑料材料的淀粉基组合物，将淀粉在加热的挤出机中与高沸点增塑剂和破坏剂混合足以导致淀粉被破坏的时间， 取决于所使用的破坏剂，在低于所用增塑剂沸点的温度下，在120-170℃之间。由此得到的组合物特别适用于与具有较高熔点的聚合物的聚合物混合物的配制， 因为它可以在高于120℃的温度下进行加工，适用于这些聚合物在低压下挤出。 特别地，由此获得并与聚乙烯醇和/或乙烯 - 乙烯醇混合的组合物适用于通过吹塑挤出形成膜，因为它们具有所需的机械强度和抗撕裂和穿孔性能，或用于形成 制品通过注塑，热成型或吹塑成型。