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    DEGRADABLE THERMOPLASTIC FROM LACTIDES
    1.
    发明申请
    DEGRADABLE THERMOPLASTIC FROM LACTIDES 审中-公开
    可降解的热塑性树脂

    公开(公告)号：WO1990001521A1

    公开(公告)日：1990-02-22

    申请号：PCT/US1989003380

    申请日：1989-08-04

    Applicant: BATTELLE MEMORIAL INSTITUTE

    Inventor： BATTELLE MEMORIAL INSTITUTE ,  SINCLAIR, Richard, G. ,  PRESTON, Joseph, R.

    IPC: C08L67/04

    CPC classification number: D21H17/53 ,  A61L15/26 ,  A61L15/62 ,  B01J2219/1942 ,  C08G63/08 ,  C08J5/18 ,  C08J2367/04 ,  C08L67/00 ,  C08L67/02 ,  C08L67/025 ,  C08L67/04 ,  C08L101/00 ,  C08L2666/28 ,  C09D167/04 ,  C09J167/04 ,  C08L2666/02 ,  C08L2666/26 ,  C08L29/00 ,  C08L2666/18

    Abstract: Biodegradable compositions of L-lactide, D-lactide, meso D,L-lactide, and racemic D,L-lactide which are suitable for pliable films and other packaging applications are prepared by polymerizing L-lactide, D-lactide, D,L-lactide or mixtures thereof using a catalyst at controlled conditions to allow the polymer in the composition to be plasticized by unreacted lactide monomer. Environmentally biodegradable polymer, composition and process for a polymer and a composition. The biodegradable polymer comprises polymerized lactic acid units of structure (I), where n is an integer between 75 and 10,000 and the alpha carbon is a mixture of L- and D-configurations where the unoriented polymer has a tensile strength of at least 5,000 psi and tangent modulus of at least 200,000 psi. Another embodiment provides for an environmentally degradable composition comprising blends of a physical mixture of polylactic acid, and a polymer selected from the group consisting of the polymers of ethylene terephthalate, a polymer or copolymer of styrene, ethylene, propylene, vinyl chloride, vinyl acetate, alkyl methacrylate, alkyl acrylate, and physical mixtures thereof.

    Abstract translation: 通过聚合L-丙交酯，D-丙交酯，D，L，L-丙交酯，D-丙交酯，D-丙交酯，D-丙交酯，D-丙交酯，D-丙交酯，D-丙交酯，D-丙交酯，D-丙交酯，D-丙交酯，L-丙交酯，外消旋D，L-丙交酯的生物可降解组合物， 丙酸酯或其混合物，其使用催化剂在受控条件下使组合物中的聚合物由未反应的丙交酯单体增塑。 聚合物和组合物的环境可生物降解的聚合物，组合物和方法。 可生物降解的聚合物包含结构（I）的聚合乳酸单元，其中n是75和10,000之间的整数，α碳是L-和D-构型的混合物，其中未取向聚合物的拉伸强度至少为5000psi 和至少200,000psi的切线模量。 另一个实施方案提供一种环境可降解组合物，其包含聚乳酸的物理混合物的共混物和选自对苯二甲酸乙二醇酯，苯乙烯，乙烯，丙烯，氯乙烯，乙酸乙烯酯的聚合物或共聚物的聚合物的聚合物， 甲基丙烯酸烷基酯，丙烯酸烷基酯及其物理混合物。

    SOLID-STATE STAMPING OF FIBER-REINFORCED THERMOPLASTIC SEMI-CRYSTALLINE SHEET COMPOSITES
    3.
    发明申请
    SOLID-STATE STAMPING OF FIBER-REINFORCED THERMOPLASTIC SEMI-CRYSTALLINE SHEET COMPOSITES 审中-公开
    纤维增强热塑性半结晶片复合材料的固态压印

    公开(公告)号：WO1987004387A1

    公开(公告)日：1987-07-30

    申请号：PCT/US1987000094

    申请日：1987-01-15

    Applicant: BATTELLE MEMORIAL INSTITUTE

    Inventor： BATTELLE MEMORIAL INSTITUTE ,  PRESTON, Joseph, R.

    IPC: B29C43/16

    CPC classification number: B29C43/16 ,  B29K2023/00 ,  B29K2023/06 ,  B29K2059/00 ,  B29K2071/00 ,  B29K2077/00 ,  B29K2105/06 ,  B29K2105/12 ,  B29K2995/0041

    Abstract: Method for solid-state stamping of fiber-reinforced thermoplastic composites. Such method comprises: (a) restricting said thermoplastic to be a semi-crystalline thermoplastic polymeric material; (b) heating said composite in an oven to a temperature of less than the peak melting temperature of said polymeric material; (c) transferring said heated polymeric material from said oven to a mold and permitting said polymeric material to cool during said transferring; and (d) stamping said composite in said mold, the temperature of said composite at the commencement of stamping being less than the peak melting temperature but greater than the crystallization onset temperature of said composite, said temperatures determined by differential scanning calorimetry of said composite.

    Abstract translation: 纤维增强热塑复合材料固态冲压方法。 这种方法包括：（a）将所述热塑性塑料限制为半结晶热塑性聚合材料; （b）将烘箱中的所述复合材料加热至小于所述聚合材料的峰值熔融温度的温度; （c）将所述加热的聚合物材料从所述烘箱转移到模具，并允许所述聚合材料在所述转移过程中冷却; 和（d）在所述模具中冲压所述复合材料，所述复合材料在冲压开始时的温度小于峰值熔融温度，但大于所述复合材料的结晶起始温度，所述温度由所述复合材料的差示扫描量热法测定。

    PACKAGING THERMOPLASTICS FROM LACTIC ACID
    4.
    发明申请
    PACKAGING THERMOPLASTICS FROM LACTIC ACID 审中-公开
    从酸性包装热塑性物质

    公开(公告)号：WO1992004413A1

    公开(公告)日：1992-03-19

    申请号：PCT/US1991006327

    申请日：1991-09-04

    Applicant: BATTELLE MEMORIAL INSTITUTE

    Inventor： BATTELLE MEMORIAL INSTITUTE ,  SINCLAIR, Richard, G. ,  PRESTON, Joseph, R.

    IPC: C08L67/04

    CPC classification number: D21H17/53 ,  A61L15/26 ,  A61L15/62 ,  B01J2219/1942 ,  C08G63/08 ,  C08J5/18 ,  C08J2367/04 ,  C08K5/101 ,  C08L53/00 ,  C08L57/00 ,  C08L67/00 ,  C08L67/02 ,  C08L67/025 ,  C08L67/04 ,  C08L2666/28 ,  C09D167/04 ,  C09J167/04 ,  C08L2666/14 ,  C08L29/00 ,  C08L2666/18 ,  C08L2666/02 ,  C08L2666/26

    Abstract: A first general embodiment includes environmentally biodegradable compositions of poly(lactic acid) intimately plasticized with derivatives of oligomers of lactic acid, and mixtures such as lactic acid. A second general embodiment includes biodegradable polymer comprising polymerized lactic acid where the number of repeating lactic acid units n is an integer between 450 and 10,000 and the alpha carbon is a mixture of L- and D-configurations with a preponderance of either D- or L-units. A third general embodiment includes an environmentally degradable composition of blends of a physical mixture of poly(lactic acid), and a polymer selected from the group consisting of poly(ethylene terephthalate), a polymer or copolymer of styrene, ethylene, propylene, vinyl chloride, vinyl acetate, alkyl methacrylate, alkyl acrylate, and physical mixtures thereof. A fourth general embodiment includes an environmentally degradable composition that comprises blends of a physical mixture of a poly(lactic acid), comprising about 1 to 99 weight percent of the composition, and an elastomeric blend compatible polymer.

    Abstract translation: 第一个一般实施方案包括用乳酸低聚物的衍生物和乳酸等混合物紧密塑化的聚（乳酸）的环境可生物降解的组合物。 第二个一般实施方案包括包含聚合乳酸的可生物降解的聚合物，其中重复乳酸单元数n为450和10,000之间的整数，α碳是具有D或L优势的L-和D-构型的混合物 -单位。 第三个一般实施方案包括由聚（乳酸）和选自聚（对苯二甲酸乙二醇酯），苯乙烯，乙烯，丙烯，氯乙烯的聚合物或共聚物的聚合物的聚（乳酸）的物理混合物的共混物的环境可降解组合物 ，乙酸乙烯酯，甲基丙烯酸烷基酯，丙烯酸烷基酯及其物理混合物。 第四个一般实施方案包括可环境降解的组合物，其包含包含约1至99重量％组合物的聚（乳酸）和弹性共混物相容性聚合物的物理混合物的混合物。

    SOLID-STATE STAMPING OF FIBER-REINFORCED THERMOPLASTIC SEMI-CRYSTALLINE SHEET COMPOSITES
    7.
    发明公开
    SOLID-STATE STAMPING OF FIBER-REINFORCED THERMOPLASTIC SEMI-CRYSTALLINE SHEET COMPOSITES 失效
    法成型纤维增强，份结晶，热塑性复合板的固态。

    公开(公告)号：EP0253878A1

    公开(公告)日：1988-01-27

    申请号：EP87901181.0

    申请日：1987-01-15

    Applicant: BATTELLE MEMORIAL INSTITUTE

    Inventor： PRESTON, Joseph, R.

    IPC: B26F1 ,  B29C43 ,  B29K105

    CPC classification number: B29C43/16 ,  B29K2023/00 ,  B29K2023/06 ,  B29K2059/00 ,  B29K2071/00 ,  B29K2077/00 ,  B29K2105/06 ,  B29K2105/12 ,  B29K2995/0041

    Abstract: Procédé d'estampage à l'état solide de composites thermoplastiques renforcés par des fibres. Ce procédé consiste (a) à limiter le composite thermoplastique à un matériau polymère thermoplastique semi-cristallin; (b) à chauffer ledit composite dans un four jusqu'à une température inférieure à la température de fusion de crête du matériau polymère; (c) à transférer le matériau polymère chauffé du four à un moule et à le laisser refroidir pendant le transfert; (d) à estamper le composite dans le moule, la température du composite au commencement de l'estampage étant inférieure à la température de fusion de crête mais supérieure à la température de déclenchement de cristallisation du composite, ces températures étant déterminées par calorimétrie à balayage différentiel du composite.

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