Environmentally friendly polylactide-based composite formulations
    43.
    发明授权
    Environmentally friendly polylactide-based composite formulations 有权
    环保型聚丙交酯复合制剂

    公开(公告)号:US07256223B2

    公开(公告)日:2007-08-14

    申请号:US11032608

    申请日:2005-01-10

    IPC分类号: C08K7/14 C08K7/02 C08K5/1515

    摘要: Polymeric materials and products, including sheet flooring materials prepared from the polymeric materials, and processes for preparing the polymeric materials, are disclosed. The polymeric materials include a polylactic acid-based polymer in combination with plasticizer and a compatibilizer, and optionally include a filler. The polymeric material can include between about 30 to about 50 percent by weight polyvinyl chloride, polyethylene glycol, polyglycolide, ethylene vinyl acetate, polycarbonate, polycaprolactone, polyhydroxyalkanoates, or polyolefins modified with polar groups, for example, ionomers. The plasticizer is typically an epoxidized vegetable oil or esterified and epoxidized vegetable oil and is typically present in an amount of between about 10 and about 50% by weight. In some embodiments, the compatibilizer is a polyolefin modified with one or more polar functional groups, and is typically present in an amount of between about 5 and about 10% by weight. The material can be used in decorative surface coverings, such as a floor coverings, particularly when it is in the form of a polymeric sheet. The polymeric material can be present in at least one layer of a floor covering, which floor covering can also include one or more additional layers such as wear layers, foamed or foamable layers, top coat layers and design layers. The additional layers can also include the polymeric material.

    摘要翻译: 公开了聚合材料和产品,包括由聚合物材料制备的片材地板材料,以及制备聚合物材料的方法。 聚合物材料包括与增塑剂和增容剂组合的聚乳酸类聚合物,并且任选地包括填料。 聚合物材料可包括约30至约50重量%的聚氯乙烯,聚乙二醇,聚乙交酯,乙烯醋酸乙烯酯,聚碳酸酯,聚己酸内酯,聚羟基链烷酸酯或用极性基团改性的聚烯烃,例如离聚物。 增塑剂通常是环氧化植物油或酯化和环氧化植物油,并且通常以约10至约50重量%的量存在。 在一些实施方案中,增容剂是用一个或多个极性官能团改性的聚烯烃,通常以约5至约10重量%的量存在。 该材料可用于装饰性表面覆盖物,例如地板覆盖物,特别是当其为聚合物片材的形式时。 聚合材料可以存在于至少一层地板覆盖物中,该地板覆盖物还可包括一层或多层附加层,例如耐磨层,发泡层或发泡层,顶涂层和设计层。 另外的层还可以包括聚合物材料。

    Composite material of aligned discontinuous fibers
    44.
    发明授权
    Composite material of aligned discontinuous fibers 失效
    对齐不连续纤维的复合材料

    公开(公告)号:US6025285A

    公开(公告)日:2000-02-15

    申请号:US826215

    申请日:1997-03-27

    摘要: A method and apparatus for aligning discontinuous fibers (F 101, 212) is described. A feeder apparatus (20, 120, 220, 220A) is used to align the fibers in a horizontal plane for feeding to the aligning apparatus (40, 140, 240, 240A) providing an electrical (E) field to orient the fibers in one preselected direction. A support or conveyor (70, 170, 270) receives the aligned fibers. The method and apparatus provides composite products having improved physical properties because of the alignment. The fibers can be of different lengths and a mixture of different types to make composites with controlled microstructure and properties. The composite materials can be in the form of non-woven, discontinuous fiber reinforced thermoplastic stampable sheets with controlled fiber orientation distribution. The composites are useful for a variety of goods.

    摘要翻译: 描述了用于对准不连续纤维的方法和装置(F 101,212)。 馈送装置(20,120,220,220A)用于将纤维对准水平面以供给定位装置(40,140,​​240,240A),从而提供电(E)场以将纤维定向于一个 预选方向 支撑件或输送机(70,170,270)接收对准的纤维。 该方法和装置提供由于对准而具有改进的物理性质的复合产品。 纤维可以具有不同的长度和不同类型的混合物以制备具有受控的微结构和性质的复合材料。 复合材料可以是具有受控纤维取向分布的无纺布,不连续纤维增强的热塑性可冲压片材的形式。 复合材料可用于各种商品。

    Apparatus and high speed method for coating elongated fibers
    47.
    发明授权
    Apparatus and high speed method for coating elongated fibers 失效
    用于涂覆细长纤维的装置和高速方法

    公开(公告)号:US5310582A

    公开(公告)日:1994-05-10

    申请号:US020112

    申请日:1993-02-19

    摘要: An apparatus and method for uniformly coating a fiber or tow of fibers (10) with a powder at relatively high speed to produce a prepreg. The apparatus uses an elongated chamber (401) in a container (400) for confining the fiber which is coated by an aerosol of powder dispensed from a powder dispensing apparatus (500) in counter-current mode. A fiber tensioning apparatus (300) for the fiber maintains the proper tensioning of the fibers spread by a speaker (201) below the fibers on roller bars (203) so that the uniformly spread fibers are fed to the chamber (401). A heater apparatus (600) fuses the powder to the fiber and then is taken up on a spool (700).

    摘要翻译: 用粉末均匀地涂覆纤维(10)的纤维或纤维束以较高速度制造预浸料的装置和方法。 该装置使用在容器(400)中的细长室(401),用于限制由逆流电模式从粉末分配装置(500)分配的粉末气溶胶涂覆的纤维。 用于纤维的纤维张紧装置(300)保持纤维在辊杆(203)下方的纤维下方由扬声器(201)扩展的纤维的适当张紧,使得均匀扩展的纤维被供给到室(401)。 加热器装置(600)将粉末熔合到纤维上,然后被卷绕在线轴(700)上。

    Method coating fibers with particles by fluidization in a gas
    48.
    发明授权
    Method coating fibers with particles by fluidization in a gas 失效
    方法通过在气体中流化来涂覆具有颗粒的纤维

    公开(公告)号:US5102690A

    公开(公告)日:1992-04-07

    申请号:US746062

    申请日:1991-08-12

    摘要: A system and method for uniformly coating one or more fibers (10) with particles of a material is described. The method uses a vibrator preferably an acoustic speaker (17b) in a housing (17c) to fluidize the particles (P.sub.1) in a chamber (17 or 30) to deposit them on spread fibers (10b). The fibers can be in the form of a tow of fibers. After the articles are coated on the fibers, the particles can be bonded to the fiber such as by using a heater (19). The resulting product has a uniform deposit of the particles and in the case of the tow of fibers can serve as a prepreg for laminate structures to be produced from the coated tow of fibers.

    摘要翻译: 描述了用材料颗粒均匀涂覆一种或多种纤维(10)的系统和方法。 该方法使用振动器,优选地在壳体(17c)中的声音扬声器(17b)将腔室(17或30)中的颗粒(P1)流化,以将它们沉积在扩展纤维(10b)上。 纤维可以是纤维束的形式。 在将物品涂覆在纤维上之后,可以通过使用加热器(19)将颗粒粘合到纤维上。 所得到的产品具有均匀的颗粒沉积,并且在纤维丝束的情况下可以用作由涂布的纤维束生产的层压结构的预浸料。