Thermoplastic mixture containing 1,4-&agr;-D-polyglucane, method for making the same and use thereof
    5.
    发明授权
    Thermoplastic mixture containing 1,4-&agr;-D-polyglucane, method for making the same and use thereof 有权
    含有1,4-α-D-聚葡糖的热塑性混合物,其制备方法及其应用

    公开(公告)号:US06323265B1

    公开(公告)日:2001-11-27

    申请号:US09462231

    申请日:2000-03-13

    IPC分类号: C08K515

    摘要: 1,4-&agr;-D-Polyglucan-based thermoplastic mixture, process for the preparation and use thereof The present invention relates to a thermoplastic mixture based on biopolymers obtainable by preparing and mixing (A) 100 parts by weight of a biocatalytically produced 1,4-&agr;-D-polyglucans, (B) up to 400 parts by weight of a melt-processable polymeric material different from (A), (C) water in an amount sufficient for plastification of the mixture, (D) at least one plasticizer in an amount of 10 parts by weight up to half the total of the parts by weight of (A) and (B), and (E) where appropriate up to ((A)+(B)) parts by weight of other conventional additives, where the water content of components (A) and (B) has been corrected to zero by calculation where the plastification takes place with introduction of thermal and mechanical energy, to the use of the mixture for producing essentially biodegradable moldings and sheets, and to a process for preparing the mixture.

    摘要翻译: 基于生物聚合物的热塑性混合物技术领域本发明涉及一种基于生物聚合物的热塑性混合物,其通过制备和混合(A)100重量份的生物催化生产的1,4 -β-D-聚葡聚糖,(B)至多400重量份不同于(A),(C)的可熔融加工的聚合物材料,其量足以使混合物塑化,(D)至少一种增塑剂 (A)和(B)的重量份的总量的10重量份,以及(E)适当的至(A)+(B))重量份的其它常规 添加剂,其中通过计算将组分(A)和(B)的水含量校正为零,其中通过引入热和机械能量进行塑化,使用混合物来生产基本上可生物降解的模制品和片材,以及 一种制备该混合物的方法。

    Compositions containing starch and/or modified starch and plasticisers
    7.
    发明授权
    Compositions containing starch and/or modified starch and plasticisers 失效
    含有淀粉和/或改性淀粉和增塑剂的组合物

    公开(公告)号:US06565640B1

    公开(公告)日:2003-05-20

    申请号:US09462548

    申请日:2000-03-20

    IPC分类号: C09D10302

    摘要: Compositions are described, based on starch and/or on modified starch and comprising, as plasticizers, polyhydroxycarboxylic acids derived from aldoses and/or from ketoses, in particular from pentoses and hexoses, or comprising lactones of these acids such as &dgr;-caprolactone. The materials can be processed thermoplastically to give shaped articles which are biodegradable and physiologically nonhazardous. They may be used as packaging or casing for food or drink or pharmaceutical products, or also for the controlled release of active substances, or else for producing temporary protective coatings.

    摘要翻译: 描述了基于淀粉和/或改性淀粉的组合物,其包含衍生自醛糖和/或衍生自酮糖,特别是戊糖和己糖的多羟基羧酸或包含这些酸的内酯如δ-己内酯的多羟基羧酸。 这些材料可以热塑性加工,以得到可生物降解和生理上非危险的成型制品。 它们可以用作食品或饮料或药品的包装或外壳,也可用作活性物质的控制释放,或用于生产临时保护涂层。

    Method for the production of small spherical particles containing at least one water-insoluble linear polysaccharide
    8.
    发明授权
    Method for the production of small spherical particles containing at least one water-insoluble linear polysaccharide 失效
    制备含有至少一种水不溶性线性多糖的小球形颗粒的方法

    公开(公告)号:US06593470B1

    公开(公告)日:2003-07-15

    申请号:US09786141

    申请日:2001-05-30

    IPC分类号: C08B3718

    CPC分类号: C08J3/14 C08J2305/00

    摘要: The present invention relates to a method for the production of small spherical particles consisting totally or partly of at least one water-insoluble linear polysaccharide by dissolving the at least one water-insoluble polysaccharide in a solvent or a solvent mixture, introducing the solution into a precipitating agent or a precipitating agent mixture, optionally cooling the mixture thus obtained and separating the formed small particles, wherein at least one poly alpha D-glucan soluble in hot water is used as auxiliary agent for precipitation. The invention also relates to the particles obtained according to said method.

    摘要翻译: 本发明涉及通过将至少一种不溶于水的多糖溶解在溶剂或溶剂混合物中,全部或部分由至少一种水不溶性线性多糖组成的小球形颗粒的生产方法,将该溶液引入 沉淀剂或沉淀剂混合物,任选地冷却由此获得的混合物,并分离形成的小颗粒,其中使用至少一种可溶于热水的聚α-D-葡聚糖作为沉淀助剂。 本发明还涉及根据所述方法获得的颗粒。

    Method for the production of spherical microparticles consisting totally or partly of at least one water insoluble polyglucan containing branches and microparticles produced according to said method
    9.
    发明授权
    Method for the production of spherical microparticles consisting totally or partly of at least one water insoluble polyglucan containing branches and microparticles produced according to said method 失效
    制备全部或部分由根据所述方法生产的至少一种含水分子的分支和微粒的水不溶性聚葡聚糖的球形微粒的制备方法

    公开(公告)号:US06562459B1

    公开(公告)日:2003-05-13

    申请号:US09786142

    申请日:2001-06-07

    IPC分类号: B32B516

    摘要: The invention relates to a method for the production of spherical microparticles consisting totally or partly of at least one water-insoluble polysaccharide, wherein the at least one water-insoluble polysaccharide is dissolved in a solvent or solvent mixture, the solution thus formed is introduced into a precipitating agent or precipitating agent mixture, the mixture obtained is optionally cooled and the formed microparticles are separated. The invention is characterized in that the water-insoluble polysaccharide is selected from a polyglucan containing branches with a degree of branching higher than zero and no higher than 8% and a mixture of a polyglucan containing branches and a linear polysaccharide, wherein the proportion of polyglucan containing branches in the mixture is at the most 30% by weight in relation to the overall weight of the polysaccharide and the polyglucan.

    摘要翻译: 本发明涉及一种全部或部分由至少一种不溶于水的多糖组成的球形微粒的制造方法,其中将至少一种水不溶性多糖溶解在溶剂或溶剂混合物中,将形成的溶液引入 沉淀剂或沉淀剂混合物,任选地将获得的混合物冷却并分离形成的微粒。 本发明的特征在于,水不溶性多糖选自具有分支度高于零且不高于8%的支链的聚葡聚糖和含有支链的多聚葡聚糖和线性多糖的混合物,其中聚葡聚糖的比例 混合物中含有的支链相对于多糖和聚葡聚糖的总重量为至多30重量%。

    Compositions comprising starch and/or modified starch and plasticizers
    10.
    发明授权
    Compositions comprising starch and/or modified starch and plasticizers 失效
    包含淀粉和/或改性淀粉和增塑剂的组合物

    公开(公告)号:US06736889B2

    公开(公告)日:2004-05-18

    申请号:US10402062

    申请日:2003-03-28

    IPC分类号: C09D10302

    摘要: Compositions are described, based on starch and/or on modified starch and comprising, as plasticizers, polyhydroxycarboxylic acids derived from aldoses and/or from ketoses, in particular from pentoses and hexoses, or comprising lactones of these acids. The materials can be processed thermoplastically to give shaped articles which are biodegradable and physiologically nonhazardous. They may be used as packaging or casing for food or drink or pharmaceutical products, or also for the controlled release of active substances, or else for producing temporary protective coatings.

    摘要翻译: 描述了基于淀粉和/或改性淀粉的组合物,其包含衍生自醛糖和/或酮糖,特别是戊糖和己糖,或包含这些酸的内酯的多羟基羧酸作为增塑剂。 这些材料可以热塑性加工,以得到可生物降解和生理上非危险的成型制品。 它们可以用作食品或饮料或药品的包装或外壳,也可用作活性物质的控制释放,或用于生产临时保护涂层。