Biodegradable plastics
    115.
    发明申请
    Biodegradable plastics 审中-公开
    生物降解塑料

    公开(公告)号:US20040249065A1

    公开(公告)日:2004-12-09

    申请号:US10457281

    申请日:2003-06-09

    Abstract: A method for producing biodegradable plastic from natural materials containing polysaccharides and oligosaccharides by treating the polysaccharide-containing or oligosaccharide-containing materials with a basic aqueous solution, subsequently treating the mixture with a modifying material to create an anionic product, and then contacting the anionic product with proteins to produce the biodegradable plastic material. The process provides relatively inexpensive methods for preparing biodegradable plastics that are useful for manufacturing various articles and also to provide an environmental solution that will reduce the amount of natural wastes that could be practically utilized for the benefit of mankind.

    Abstract translation: 一种通过用碱性水溶液处理含有多糖或含寡糖的材料,用含有多糖和寡糖的天然材料制造可生物降解的塑料的方法,随后用改性材料处理混合物以产生阴离子产物,然后使阴离子产物 用蛋白质生产可生物降解的塑料材料。 该方法提供了用于制备可生物降解塑料的相对便宜的方法,其可用于制造各种制品,并且还提供将减少实际可用于人类益处的天然废物的量的环境解决方案。

    Resin composition for injection molding
    116.
    发明申请
    Resin composition for injection molding 审中-公开
    注塑用树脂组合物

    公开(公告)号:US20040209985A1

    公开(公告)日:2004-10-21

    申请号:US10418164

    申请日:2003-04-18

    Applicant:

    Inventor: Woei-Min Tsai

    Abstract: Modified poly (ethylene terephthalate) for injection molding can be obtained by adding polycarbonate resin (PC), acrylnitrile butadiene styrene reisn (ABS), styrene butadiene styrene resin (SBS) or styrene ethylene butylene styrene resin (SEBS) into reused or recycled PET bottles. Weight percentages of these components are described in the specification.

    Abstract translation: 用于注塑的改性聚(对苯二甲酸乙二酯)可以通过将聚碳酸酯树脂(PC),丙烯腈丁二烯苯乙烯(ABS),苯乙烯丁二烯苯乙烯树脂(SBS)或苯乙烯乙烯丁烯苯乙烯树脂(SEBS)加入到再利用或再循环的PET瓶中 。 这些组分的重量百分比在说明书中描述。

    Biodegradable plastic molded article
    117.
    发明授权
    Biodegradable plastic molded article 有权
    生物降解塑料成型品

    公开(公告)号:US06350531B1

    公开(公告)日:2002-02-26

    申请号:US09622755

    申请日:2000-10-30

    Inventor: Ichiro Sugimoto

    Abstract: A biodegradable plastic article molded of a mixture comprising the following components: (A) a biodegradable plastic at 98 to 59% by weight, (B) a dry powder of a water-swelling fiber at 1 to 40% by weight, and (C) a fertilizer powder at 1 to 40% by weight (wherein the sum of (B) and (C) is from 2 to 41% by weight). This biodegradable plastic article can improve biodegradability of the biodegradable plastics and make it possible to regulate the rate of biodegradation thereof.

    Abstract translation: 一种由包含以下组分的混合物模制的可生物降解的塑料制品:(A)98至59重量%的生物可降解塑料,(B)1至40重量%的水溶胀纤维的干粉和(C )1〜40重量%的肥料粉末(其中(B)和(C)的总和为2〜41重量%)。 该可生物降解的塑料制品可以改善可生物降解塑料的生物降解性,并且可以调节其生物降解速率。

    Biodegradable polymeric compositions and products thereof
    119.
    发明授权
    Biodegradable polymeric compositions and products thereof 失效
    可生物降解的聚合物组合物及其制品

    公开(公告)号:US5939467A

    公开(公告)日:1999-08-17

    申请号:US308066

    申请日:1994-09-16

    Abstract: The present invention relates to polymeric compositions that are biodegradable and that can be melt processed into various forms, including films, fibers, and nonwovens. The compositions include compatible or semicompatible blends of biodegradable polymers and have physical and thermomechanical integrity. Films formed from preferred polymeric compositions are suitable for use as backsheets in disposable absorbent articles. In a preferred embodiment, the polymeric composition includes a polyhydroxyalkanoate and at least one other biodegradable polymer selected from aliphatic polyester-based polyurethanes, a polylactide, polycaprolactone, or a mixture of two or more of these polymers. Where the second polymer is polycaprolactone, the composition preferably also includes a third polymer for enhancing the melt processability of the composition.

    Abstract translation: 本发明涉及可生物降解并且可以熔融加工成各种形式的聚合物组合物,包括膜,纤维和无纺布。 组合物包括可生物降解的聚合物的相容或半相容的共混物,具有物理和热机械的完整性。 由优选的聚合物组合物形成的膜适合用作一次性吸收制品中的底片。 在优选的实施方案中,聚合物组合物包括聚羟基链烷酸酯和选自脂族聚酯基聚氨酯,聚丙交酯,聚己内酯或这些聚合物中的两种或更多种的混合物的至少一种其它可生物降解的聚合物。 当第二聚合物是聚己内酯时,组合物优选还包括用于增强组合物熔融加工性能的第三聚合物。

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