POLYMER COMPOSITION AND A METHOD FOR PRODUCING PACKING MATERIALS WITH CONTROLLABLE DECOMPOSITION
    112.
    发明申请
    POLYMER COMPOSITION AND A METHOD FOR PRODUCING PACKING MATERIALS WITH CONTROLLABLE DECOMPOSITION 审中-公开
    聚合物组合物和用于生产可控分解的包装材料的方法

    公开(公告)号:WO2003051989A1

    公开(公告)日:2003-06-26

    申请号:PCT/BG2002/000015

    申请日:2002-06-27

    Abstract: The polymer composition is used for packing products of the chemical, food and other industries. The packing material obtained from the polymer composition has a wide range of application and controllable decomposition of the packages in water medium, ensuring environmental cleanness and recycling of the material.The polymer composition for packing materials contains polyvinylalcohol and water, and, according to the invention, it also contains polyvinylacetate dispersion, methylcellulose, carboxymethylcellulose and glucose in the following proportions of the components in % by weight: polyvinylalcohol 32 - 84, polyvinylacetate dispersion 10- 57, methylcellulose 3.0 - 5.8, carboxymethylcellulose 2.0 - 4.2, glucose 0.5 - 2.3, and water 0.5 - 6.0. The method for producing packing materials from the polymer composition includes the preparation of a dry mixture or viscous mass and moulding. According to the invention, before or after the moulding the material is treated successively with aqueous sodium tetraborate solution and aqueous formaldehyde solution.

    Abstract translation: 聚合物组合物用于包装化学,食品和其他行业的产品。 由聚合物组合物获得的包装材料在水介质中具有广泛的应用范围和可分解的包装,确保材料的环境清洁和再循环。包装材料的聚合物组合物含有聚乙烯醇和水,根据本发明 ,它还包含以下重量比的组分的聚乙酸乙烯酯分散体,甲基纤维素,羧甲基纤维素和葡萄糖:聚乙烯醇32-84,聚乙酸乙烯酯分散体10-57,甲基纤维素3.0-5.8,羧甲基纤维素2.0-4.2,葡萄糖0.5-2.3, 和水0.5-6.0。 从聚合物组合物制造包装材料的方法包括制备干混合物或粘性物质并模塑。 根据本发明,在模塑之前或之后,依次用四水硼酸钠水溶液和甲醛水溶液处理材料。

    Solid dry-type lubricant
    113.
    发明授权

    公开(公告)号:US12122901B2

    公开(公告)日:2024-10-22

    申请号:US18191531

    申请日:2023-03-28

    Abstract: One or more techniques and/or systems are disclosed for a dry-type lubricant for use in a dry product hopper to help improve dry product flow and to improve anti-jamming properties of the dry product. The example lubricant can comprise a hydrophilic fiber, such as cellulose, having a width to length aspect ratio that provides a thin fiber. A plurality of hydrophobic particles are deposited on the surface of the fiber, resulting in a fiber surface exhibiting amphiphobic properties. Further, the fiber can operably absorb water, and then releases the absorbed water to the surface of the fiber under mechanical stress, such as when mixed with a product in a hopper. This can result in the water being disposed on the surface of the fiber, to provide lubrication to a product in a hopper to improve flow and anti-jamming characteristics of the product in the hopper.

    Protective starch-based film and its preparation method and application

    公开(公告)号:US11891490B2

    公开(公告)日:2024-02-06

    申请号:US18233375

    申请日:2023-08-14

    Abstract: Disclosed are a protective starch-based film and its preparation method and application, belonging to the field of food packaging. According to the method for preparing the protective starch-based film, surfaces of zinc oxide nanoparticles are enabled to adsorb tannic acid and iron ions under the action of metal coordination by controlling the pH to obtain metallic polyphenol network coated zinc oxide nanoparticles, dispersion of the obtained nanoparticles is added to a starch gelatinization solution, and a melanin-like precursor is simultaneously added to form mixed liquid; and by controlling the pH of the mixed solution, π-π stacking, self-polymerization and metal coordination are induced, so that a stable protective starch-based film with a nano-reinforced interpenetrating network structure is formed. The method is simple, green, pollution-free and energy-saving, and the prepared starch-based degradable film has remarkable ultraviolet-shielding, mechanical and antibacterial properties, thus having wide application prospects in the field of food packaging.

    EARTH PLANT COMPOSTABLE BIODEGRADABLE SUBSTRATE AND METHOD OF PRODUCING THE SAME

    公开(公告)号:US20230407053A1

    公开(公告)日:2023-12-21

    申请号:US18334315

    申请日:2023-06-13

    Inventor: Edward Showalter

    Abstract: An earth plant-based compostable biodegradable composition for the formation of a bioplastic and method of producing said resin, the composition comprising: about 17.5 to 45% ethanol-based green polyethylene by weight, about 20 to 25% calcium carbonate by weight, about 2 to 12% hemp hurd or soy protein by weight, about 32 to 45% starch by weight, and about 0.5 to 1% biodegradation additive by weight to enable biodegradation and composting of the bioplastic; wherein the composition is produced by first mill grinding the ethanol-based green polyethylene, calcium carbonate, hemp hurd or soy protein, starch and the biodegradation additive into fine powders, then mechanically mixing the fine powders one by one into a final mixture for about 5-25 minutes at a time, dry and without heat, and then heating the final mixture to about 220 to 430 degrees Fahrenheit.

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