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    • 1. 发明申请
    • INJECTION MOLDING MATERIAL CONTAINING STARCH AND PLANT PROTEIN
    • 注射成型材料含有淀粉和植物蛋白
    • WO2010070470A3
    • 2010-10-28
    • PCT/IB2009054733
    • 2009-10-26
    • KIMBERLY CLARK COWANG JAMES HWIDEMAN GREGORY JSHI BOFUNK SARA A
    • WANG JAMES HWIDEMAN GREGORY JSHI BOFUNK SARA A
    • C08L3/02B29C45/00C08L89/00C08L101/00
    • C08L23/06B29C45/0001B29K2105/16B29K2711/00B29K2995/006C08L1/00C08L3/00C08L3/02C08L23/02C08L23/04C08L23/10C08L89/00C08L2205/02C08L2207/066Y10T428/1348Y10T428/1352C08L2666/06C08L2666/26
    • An injection molding material that includes a renewable resin containing a combination of renewable polymers (e.g., starch and plant protein) and a plasticizer is provided. Although such compounds are normally difficult to process into thermoplastics, the present inventors have discovered that injection molding materials may nevertheless be formed by melt blending the renewable resin with a synthetic resin (e.g., polyolefin) while selectively controlling the nature of the resins and their relative concentrations. In this manner, a morphology may be achieved in which the renewable resin is present as a discontinuous phase that is dispersed within a continuous phase of the synthetic resin (e.g., "island-in-the-sea" morphology). The discontinuous and continuous phases may each constitute from about 30 vol.% to about 70 vol.%, and in some embodiments, from about 40 vol.% to about 60 vol.%. With such a morphology, the continuity of the synthetic resin can minimize the aggregate properties of the renewable resin such that the molding material possesses melt properties similar to that of the synthetic resin. Further, this morphology may also minimize the need to use different molding tools as the shrinkage properties of the overall composition may be substantially similar to that of the synthetic resin.
    • 提供了一种注射成型材料,其包括含有可再生聚合物(例如淀粉和植物蛋白)和增塑剂的组合的可再生树脂。 虽然这些化合物通常难以加工成热塑性塑料,但是本发明人已经发现,注射成型材料可以通过将可再生树脂与合成树脂(例如聚烯烃)熔融共混而形成,同时选择性地控制树脂的性质及其相对 浓度。 以这种方式,可以实现其中可再生树脂作为分散在合成树脂的连续相中的不连续相(例如“海岛”形态)存在的形态。 不连续和连续相可以各自构成约30体积%至约70体积%,在一些实施方案中为约40体积%至约60体积%。 通过这种形态,合成树脂的连续性可以使可再生树脂的聚集性能最小化,使得成型材料具有与合成树脂类似的熔体性质。 此外,由于整个组合物的收缩性能可以基本上类似于合成树脂的收缩特性,所以这种形态还可以最小化使用不同的模制工具的需要。
    • 2. 发明申请
    • WATER-SENSITIVE FILM CONTAINING AN OLEFINIC ELASTOMER
    • 含有烯烃弹性体的水敏膜
    • WO2009138886A3
    • 2010-01-07
    • PCT/IB2009051331
    • 2009-03-30
    • KIMBERLY CLARK COSHI BOWANG JAMES HWIDEMAN GREGORY J
    • SHI BOWANG JAMES HWIDEMAN GREGORY J
    • C08J5/18A61F13/15B29D7/01C08L23/00C08L29/04
    • C08J5/18C08J2329/04C08K5/0016C08K5/053C08L1/284C08L23/08C08L23/0815C08L29/04C08L53/02C08L67/02C08L2666/24C08L2666/04
    • A film that is both elastic and water-sensitive (e.g., water-soluble, water-dispersible, etc.) in that it loses its integrity over time in the presence of water is provided. To achieve these dual attributes, the film contains an olefinic elastomer and a water-soluble polymer. Although these polymers are normally chemically incompatible due to their different polarities, the present inventors have discovered that phase separation may be minimized by selectively controlling certain aspects of the film, such as the nature of the polyolefin, water-soluble polymer, and other film components, the relative amount of the film components, and so forth. For example, certain water-soluble polymers may be selected that have a low molecular weight and viscosity to enhance their melt compatibility with nonpolar polyolefins. This, in turn, may result in a film that is generally free of separate phases, which would otherwise limit the ability of the water-soluble polymer to contact water and disperse.
    • 提供了具有弹性和水敏性(例如水溶性,水分散性等)的膜,因为它在水的存在下随时间失去其完整性。 为了实现这些双重属性,膜含有烯烃弹性体和水溶性聚合物。 虽然这些聚合物由于其极性不同而通常是化学上不相容的,但是本发明人已经发现,通过选择性地控制膜的某些方面,例如聚烯烃,水溶性聚合物和其它膜组分的性质,可以使相分离最小化 ,膜成分的相对量等。 例如,可以选择某些具有低分子量和粘度的水溶性聚合物,以提高它们与非极性聚烯烃的熔融相容性。 这又可能导致通常没有分离相的膜,否则这将限制水溶性聚合物与水接触并分散的能力。
    • 6. 发明申请
    • MULTI-LAYERED FILM CONTAINING A BIOPOLYMER
    • 含有生物聚合物的多层膜
    • WO2013093783A3
    • 2013-08-22
    • PCT/IB2012057439
    • 2012-12-18
    • KIMBERLY CLARK CO
    • WANG JAMES HWIDEMAN GREGORY JTHOMPSON BRENT M
    • B32B27/08B32B1/08B32B27/18
    • B32B27/08B32B27/32B32B27/36B32B2250/02B32B2250/03B32B2250/24B32B2270/00B32B2307/7163B32B2439/70
    • A film that contains a core layer positioned adjacent to an outer layer is provided. The core layer contains a relatively high percentage of thermoplastic biopolymers that are both biodegradable and renewable. Despite being biodegradable and renewable, many biopolymers tend to be relatively stiff in nature. The present inventors have discovered, however, that through selective control over the components in the core and outer layers, a film can be readily formed having good mechanical properties. Among other things, this is accomplished by blending the biopolymer in the core layer with a polyolefin. A polyolefin is also employed in the outer layer. In addition to providing functionality to the film (e.g., heat sealing, printing, etc.), the polyolefin-containing outer layer also helps counteract the stiffness of the biopolymer in the core layer, and helps improve processability, stiffness, and ductility.
    • 提供包含与外层相邻定位的芯层的膜。 核心层包含相对较高百分比的热塑性生物聚合物,其既可生物降解又可再生。 尽管可生物降解和可再生,但许多生物聚合物本质上相对较硬。 然而,本发明人已经发现,通过选择性地控制芯层和外层中的成分,可以容易地形成具有良好机械性能的膜。 除此之外,这是通过将核心层中的生物聚合物与聚烯烃共混来实现的。 聚烯烃也用于外层。 除了为薄膜提供功能(例如,热封,印刷等)之外,含聚烯烃的外层还有助于抵消芯层中生物聚合物的硬度,并且有助于改善可加工性,刚度和延展性。