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    • 34. 发明授权
    • Deep aquifer remediation system
    • 深层含水层修复体系
    • US06458271B1
    • 2002-10-01
    • US09791748
    • 2001-02-26
    • David L. NaftzJames A. Davis
    • David L. NaftzJames A. Davis
    • C02F162
    • C02F1/62B09C1/002C02F2101/006C02F2103/06C02F2201/00Y10S210/912
    • A groundwater decontamination system includes a decontamination unit adapted to be lowered down through a non-pumping well into an aquifer containing contaminated water. The unit can also be raised up and out of the non-pumping well for cleaning, servicing or replacement. The decontamination unit includes a porous outer tube with a plurality of holes through which contaminated water flows, and a porous inner tube with a plurality of holes through which flows in-flowing contaminated water flowing through outer tube. A contaminant removing reactive barrier material is disposed within the inner tube for removing on contact contaminants from the in flowing water. A flow directing arrangement, preferably in the form of flow directing fins, directs in-flowing water from the holes in the outer tube to the holes in the inner tube (i.e., provider of the channeling of the ground water into the reactive barrier material). The system can monitor the contaminant removal, as well as other conditions of the groundwater.
    • 地下水净化系统包括一个去污单元,适于通过非抽水井降低到含有受污染水的含水层中。 该设备也可以升起并排出非抽水井,以进行清洁,维修或更换。 净化单元包括多孔外管,其具有多个被污染水流过的孔,以及具有多个孔的多孔内管,流过流过外管的污染水流动。 污染物去除反应性阻挡材料设置在内管内,用于从流动的水中除去接触污染物。 流动引导装置,优选地以流动导向翅片的形式,将流入的水从外管中的孔引导到内管中的孔(即,将地下水引导到反应性阻挡材料中的提供者) 。 该系统可以监测污染物的去除以及地下水的其他条件。
    • 38. 发明授权
    • Mineral-filled roofing membrane compositions and uses therefor
    • 矿物填充的屋顶膜组合物及其用途
    • US5854327A
    • 1998-12-29
    • US883647
    • 1997-06-27
    • James A. DavisBrian S. Alexander
    • James A. DavisBrian S. Alexander
    • C08J5/18C08K3/36C08K9/06C08L23/16E04D5/06C08K3/00
    • C08J5/18C08K3/36C08K9/06C08L23/16E04D5/06C08J2323/16C08L2312/00
    • A non-black roof sheeting material may be prepared from a composition of matter comprising 100 parts by weight of at least one polymeric rubber selected from the group consisting of ethylene-propylene-diene terpolymers, ethylene-propylene copolymers and other polyolefinic type polymers; from about 20 to about 300 parts by weight of a blend of at least two mineral fillers, per 100 parts of said polymeric rubber, wherein one of said mineral fillers is a reinforcing silica and wherein another of said mineral fillers is a chemically modified clay; from about 20 to about 150 parts by weight of a processing oil, per 100 parts of said polymeric rubber; from 1 to about 6 parts by weight of a sulfur cure package having at least one accelerator but being devoid of any thiuram accelerators, said cure package allowing said sheeting material to cure at about the same rate as a comparable black roof sheeting material at 160.degree. C. The non-black (white) sheeting material may form the ply of a white-on-black bilaminant roofing membrane or it may represent both the top and bottom ply of a non-black (white) polymeric roof sheeting material.
    • 非黑色屋顶材料可以由包含100重量份的至少一种选自乙烯 - 丙烯 - 二烯三元共聚物,乙烯 - 丙烯共聚物和其它聚烯烃类聚合物的至少一种聚合物橡胶的组合物制备; 约20至约300重量份的至少两种矿物填料的混合物,每100份所述聚合物橡胶,其中所述矿物填料之一是增强二氧化硅,并且其中所述矿物填料是化学改性的粘土; 约20至约150重量份的加工油,每100份所述聚合物橡胶; 1至约6重量份的具有至少一种促进剂但不含任何秋兰姆促进剂的硫磺固化包装,所述固化包装使得所述片材材料以与相似的160℃下的相似的黑色屋顶材料材料相同的速率固化 C.非黑色(白色)薄片材料可以形成黑白色的双层双层净化屋顶膜的帘布层,或者它可以代表非黑色(白色)聚合物屋顶材料的顶层和底层。
    • 40. 发明授权
    • Heat seamable flame retardant roof sheeting with highly crystalline
thermoplasticity promoters and method for covering roofs
    • 具有高结晶热塑性促进剂的可热封阻燃屋顶薄板和覆盖屋顶的方法
    • US5516829A
    • 1996-05-14
    • US926737
    • 1992-08-10
    • James A. DavisJoseph K. Valaitis
    • James A. DavisJoseph K. Valaitis
    • C08J5/18C08K3/00C08L23/26C08L23/28E04D5/06E04D5/10C08K3/10
    • E04D5/06C08K3/0033C08L23/28
    • A heat seamable flame retardant sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of a polymer blend comprising from about 50 to 90 parts by weight of halogenated polyolefins having up to about 2 percent by weight crystallinity, which polyolefins are prepared from monomers having at least 2 carbon atoms, and mixtures thereof and from about 10 to 50 parts by weight of a highly crystalline thermoplasticity promoter selected from the group consisting of polymeric olefins prepared from monomers consisting of at least two carbon atoms; from about 50 to 250 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of the polymer blend; from about 20 to 105 parts by weight of a processing material and mixtures thereof, per 100 parts of the polymer blend; and from about 15 to 90 parts by weight of an additive selected from the group consisting of flame retardant materials and mixtures thereof, per 100 parts of the polymer blend. A method for covering a roof comprises the steps of applying layers of sheet material as described above to the roof being covered; overlapping adjacent edges of the layers; heating the overlapped areas to slightly above the softening point of the sheet material and seaming the overlapped areas using heat and sufficient pressure to provide an acceptable seam, the composition of matter having sufficient self-adhesion without the use of an adhesive.
    • 一种由未固化的物质聚合物组合物制备的用于屋顶的可热封阻燃片材材料,其包含100重量份的包含约50至90重量份具有至多约2重量%结晶度的卤代聚烯烃的聚合物共混物, 聚烯烃由具有至少2个碳原子的单体及其混合物和约10至50重量份的高结晶的热塑性促进剂制备,所述高结晶的热塑性促进剂选自由至少两个碳原子组成的单体制备的聚合烯烃; 约50至250重量份的每100份聚合物共混物选自增强材料和非增强材料的填料及其混合物; 约20至105重量份的加工材料及其混合物,每100份聚合物共混物; 和每100份聚合物共混物约15至90重量份的选自阻燃材料及其混合物的添加剂。 覆盖屋顶的方法包括以下步骤:将如上所述的片材层施加到被覆盖的屋顶; 重叠层的相邻边缘; 将重叠的区域加热到略高于片材的软化点并且使用热和足够的压力接合重叠的区域以提供可接受的接缝,该物质组合物在不使用粘合剂的情况下具有足够的自粘合性。