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    Extruded wood polymer composite and method of manufacture
    73.
    发明授权
    Extruded wood polymer composite and method of manufacture 失效
    挤出木聚合物复合材料及其制造方法

    公开(公告)号：US6153293A

    公开(公告)日：2000-11-28

    申请号：US244641

    申请日：1999-02-04

    Applicant: Michael E. Dahl ,  Robert G. Rottinghaus ,  Andrew H. Stephens

    Inventor： Michael E. Dahl ,  Robert G. Rottinghaus ,  Andrew H. Stephens

    IPC: B27N3/00 ,  B27N3/28 ,  B29C44/04 ,  B29C47/00 ,  B29C47/10 ,  B29C47/76 ,  B29C47/94 ,  C08L97/00 ,  C08K11/00

    CPC classification number: B29C44/22 ,  B27N3/005 ,  B27N3/28 ,  B29C47/0004 ,  B29C47/0016 ,  B29C47/0019 ,  B29C47/003 ,  B29C47/1045 ,  B29C47/767 ,  B29C47/786 ,  B29C47/822 ,  B29C47/94 ,  B29C47/1009 ,  B29C47/1027 ,  B29K2105/0005 ,  B29K2105/06 ,  Y10S264/913 ,  Y10S264/92 ,  Y10T428/249955 ,  Y10T428/249958 ,  Y10T428/249961

    Abstract: An extruded composite structural artificial lumber product is manufactured from wood fiber and polyethylene, including recycled polyethylene, by reducing the wood fiber and polyethylene each to a finely divided particles, mechanically mixing the wood fiber and polyethylene particles together with a measured amount of a powdered endothermic foaming agent, mechanically mixing the mixture, without pre-pelletization, in a twin-screw extruder where it is compressed and heated until it becomes plastic and homogenous, and then extruding the plastic mixture, using vacuum to remove vaporized moisture and other excess volatiles, through a molding die which forms structural profile of the desired product. The endothermic foaming agent ingredient causes greater expansion in the center of the extruded profile, thereby compressing a greater proportion of plastic material against the sides of the extrusion die, increasing the density and strength on the outside of the extrusion, and reducing the density (with no significant loss of overall strength) on the inside. The resulting extruded artificial lumber product has a specific gravity of about 1.0, plus or minus 20%, with no significant variation in dimensions after cooling.

    Abstract translation: 挤出的复合结构人造木材产品由木纤维和聚乙烯制成，包括再循环的聚乙烯，通过将木纤维和聚乙烯各自分解成细碎的颗粒，将木纤维和聚乙烯颗粒机械混合在一起并与测量量的粉末吸热 发泡剂，在双螺杆挤出机中机械混合混合物，在其中进行压缩和加热，直至变得塑性均匀，然后使用真空挤出塑料混合物以除去蒸发的水分和其它过量的挥发物， 通过形成期望产品的结构轮廓的成型模具。 吸热发泡剂成分在挤出型材的中心处引起更大的膨胀，从而将较大比例的塑料材料压在挤出模具的侧面上，增加了挤出机外部的密度和强度，降低了密度（与 没有显着的整体实力的损失）。 所得挤出的人造木材产品的比重约为1.0，加或减20％，冷却后的尺寸没有明显变化。

    Multi-layer support pad having regions of differing firmness
    77.
    发明授权
    Multi-layer support pad having regions of differing firmness 失效
    具有不同硬度区域的多层支撑垫

    公开(公告)号：US5604021A

    公开(公告)日：1997-02-18

    申请号：US363260

    申请日：1994-12-23

    Applicant: Robert F. Wagner

    Inventor： Robert F. Wagner

    IPC: A47C27/15 ,  A47C27/14 ,  B32B7/02

    CPC classification number: A47C27/15 ,  A47C27/146 ,  Y10T428/24496 ,  Y10T428/2457 ,  Y10T428/24595 ,  Y10T428/24992 ,  Y10T428/249961 ,  Y10T428/249975 ,  Y10T428/249981

    Abstract: A laminated support pad includes layers of material having different density in which voids are formed to extend through at least partial cross-sections of at least two adjacent layers to form regions of the pad having different support characteristics determined by the placement and extent of the voids in the laminated layers. Lamination of a layer of high density material on top of a layer of relatively low density material produces a relatively firm pad having varying degrees of firmness dependent upon the placement and extent of the voids. Conversely, lamination of layer of low density material on a top surface of a layer of relatively high density material produces a relatively soft pad also having varying degrees of firmness dependent upon the placement and extent of the voids. The pad can be cut to conform to conventional mattress sizes, and the regions formed in areas of the pad which correspond to the weight bearing requirements for optimum support of the human body in prone positions.

    Abstract translation: 层压支撑垫包括具有不同密度的材料层，其中空隙形成为延伸穿过至少两个相邻层的至少部分横截面，以形成具有由空隙的位置和程度确定的不同支撑特征的垫的区域 在层压层中。 在相对低密度材料层的顶部层叠一层高密度材料产生取决于空隙的位置和程度的不同程度的硬度的相对牢固的垫。 相反，低密度材料层在相对高密度材料层的顶表面上的层压产生相对软的垫，其也具有不同程度的硬度，这取决于空隙的位置和程度。 垫可以被切割以符合常规的床垫尺寸，并且形成在垫的区域中的区域，其对应于用于在俯卧位的人体的最佳支撑的重量承载要求。

    Optical elements having regions of different indices of refraction and method of fabricating the same
    78.
    发明授权
    Optical elements having regions of different indices of refraction and method of fabricating the same 失效
    具有不同折射率的区域的光学元件及其制造方法

    公开(公告)号：US5585968A

    公开(公告)日：1996-12-17

    申请号：US160567

    申请日：1993-12-01

    Applicant: Glenn F. Guhman ,  Michael Ray ,  Theodore R. Touw

    Inventor： Glenn F. Guhman ,  Michael Ray ,  Theodore R. Touw

    IPC: B29D11/00 ,  B29K83/00 ,  G02B3/00 ,  G02B27/44

    CPC classification number: G02B3/0087 ,  Y10S359/90 ,  Y10T428/249961 ,  Y10T428/249969 ,  Y10T428/249978

    Abstract: An optical device having a variable index of refraction across its surface includes a light transmissive material with a plurality of regions in the light transmissive material. Each region has an index of refraction which is different from the remainder of the material. The regions may be arranged in the surface of the material such that the density of the regions on the surface varies across the surface. Each region may be a bore, including a hole that extends through the light transmissive material. Variations in the density of the regions or bores as well as the depth and shape of the bores may be utilized to create variations of the refractive index within the light transmissive material.

    Abstract translation: 在其表面上具有可变折射率的光学装置包括在透光材料中具有多个区域的透光材料。 每个区域的折射率与材料的其余部分不同。 这些区域可以布置在材料的表面中，使得表面上的区域的密度在整个表面上变化。 每个区域可以是孔，包括延伸穿过透光材料的孔。 可以利用区域或孔的密度以及孔的深度和形状的变化来产生透光材料内的折射率的变化。

    Peelable laminated structures and process for production thereof
    79.
    发明授权
    Peelable laminated structures and process for production thereof 失效
    可剥层压结构及其生产方法

    公开(公告)号：US5582884A

    公开(公告)日：1996-12-10

    申请号：US168000

    申请日：1994-02-01

    Applicant: Melville D. Ball ,  Laurie A. Coady ,  Werner H. Kuenzi ,  Robert G. Jones

    Inventor： Melville D. Ball ,  Laurie A. Coady ,  Werner H. Kuenzi ,  Robert G. Jones

    IPC: B32B15/08 ,  C25D11/04 ,  B65D41/00 ,  B65D51/00

    CPC classification number: C25D11/04 ,  Y10S428/913 ,  Y10T428/1359 ,  Y10T428/1376 ,  Y10T428/15 ,  Y10T428/24942 ,  Y10T428/249953 ,  Y10T428/249961 ,  Y10T428/249982 ,  Y10T428/273 ,  Y10T428/28 ,  Y10T428/31678 ,  Y10T428/31681 ,  Y10T428/31688

    Abstract: The invention provides a peelable laminated structure suitable for use in a peelable seal joining a flexible closure element (23) to a container (20) or in foil/polymer laminates used for packaging and the like. The structure comprises a porous-anodizable metal substrate (11) and a porous anodic film (12) overlying and attached to a surface of the substrate. The porous anodic film (12) has a weakened stratum (19) positioned between an outer film part and an underlying structure including the metal substrate (11). The weakened stratum (19) is strong enough in use of said structure to prevent detachment of the outer film part from the underlying structure, except by deliberate peeling of the flexible closure element (23). The invention also relates to a process for producing the structure and to peelable containers and recyclable laminates incorporating the structure. The structure provides a peeable interface which is not greatly dependent on the characteristics of particular adhesives or bonding techniques used to adhere the metal substrate (11) to the remaining structure, and is thus stable and reliable.

    Abstract translation: PCT No.PCT / CA92 / 00433 Sec。 371日期1994年2月1日 102（e）日期1994年2月1日PCT提交1992年9月29日PCT公布。 出版物WO93 / 06992 日期1994年04月15日本发明提供了一种可剥离的层压结构，其适用于将柔性封闭元件（23）连接到容器（20）的可剥离密封件或用于包装等的箔/聚合物层压板中。 该结构包括多孔阳极化金属基底（11）和覆盖并附着在基底表面上的多孔阳极薄膜（12）。 多孔阳极膜（12）具有位于外膜部分和包括金属基板（11）的下层结构之间的弱化层（19）。 弱化层（19）在使用所述结构时足够强，以防止外部薄膜部件脱离下面的结构，除了有意地剥离柔性封闭元件（23）之外。 本发明还涉及一种用于生产结构的方法和可结合该结构的可剥离容器和可回收层压材料。 该结构提供了不太依赖于用于将金属基板（11）附着到其余结构的特定粘合剂或粘合技术的特性的可渗透界面，因此是稳定和可靠的。

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