中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

1239 records (took 0.024 seconds)

    High productivity, low fugitive emission foams and foam processes
    211.
    发明授权
    High productivity, low fugitive emission foams and foam processes 有权
    高生产率，低逸散排放泡沫和泡沫工艺

    公开(公告)号：US06136875A

    公开(公告)日：2000-10-24

    申请号：US276332

    申请日：1999-03-25

    Applicant: Wen Pao Wu ,  Gary A. Francis

    Inventor： Wen Pao Wu ,  Gary A. Francis

    IPC: C08J9/12 ,  C08J9/14 ,  C08J9/04

    CPC classification number: C08J9/149 ,  C08J9/127 ,  C08J2201/03 ,  C08J2203/06 ,  C08J2203/12 ,  C08J2203/14 ,  C08J2203/142 ,  C08J2325/06

    Abstract: A blowing agent for foaming polystyrene consisting essentially of at least one low permeability compound (preferably a volatile organic compound (VOC)), at least one low volatility compound (preferably a non-VOC) and, optionally, at least one high volatility compound (preferably a non-VOC). In one embodiment, the low permeability volatile organic compound is selected from the group consisting of isopentane and isobutane, the low volatility non-volatile organic compound is acetone and the high volatility non-volatile organic compound is carbon dioxide. The blowing agent of the present invention may be used to foam a polystyrene foam structure. The blowing agent is directed to achieving low fugitive VOC emissions.

    Abstract translation: 用于发泡聚苯乙烯的发泡剂，其基本上由至少一种低渗透性化合物（优选挥发性有机化合物（VOC）），至少一种低挥发性化合物（优选非VOC）和任选的至少一种高挥发性化合物（ 优选非VOC）。 在一个实施方案中，低渗透挥发性有机化合物选自异戊烷和异丁烷，低挥发性非挥发性有机化合物是丙酮，高挥发性非挥发性有机化合物是二氧化碳。 本发明的发泡剂可用于发泡聚苯乙烯泡沫结构。 发泡剂旨在实现低挥发性挥发性有机物排放。

    Expanded particles of polyolefin resin and process for preparing the same
    212.
    发明授权
    Expanded particles of polyolefin resin and process for preparing the same 有权
    聚烯烃树脂的膨胀颗粒及其制备方法

    公开(公告)号：US06133331A

    公开(公告)日：2000-10-17

    申请号：US125272

    申请日：1998-08-13

    Applicant: Masaharu Oikawa ,  Kazuo Tsurugai ,  Hisao Tokoro

    Inventor： Masaharu Oikawa ,  Kazuo Tsurugai ,  Hisao Tokoro

    IPC: C08J9/00 ,  C08J9/18

    CPC classification number: C08J9/18 ,  C08J9/0066 ,  C08J2201/03 ,  C08J2323/02

    Abstract: When it is intended to obtain foamed particles having a high expansion ratio upon the production of foamed particles of a polyolefin resin, there has been a problem that foamed particles uneven in cell diameter are produced. Any molded article produced with such foamed particles has involved a drawback that it is poor in dimensional stability, and its surface profile becomes uneven.The invention relates to foamed particles comprising a polyolefin resin as a base resin, wherein the base resin contains a metal salt (excluding alkali metal salts) of boric acid in such a manner that the content of the metal salt of boric acid in the raw resin amounts to 50-50,000 ppm. Zinc borate, magnesium borate or the like is used as the metal salt of boric acid.The foamed particles are obtained by using a polyolefin resin containing the metal salt of boric acid to prepare resin particles, dispersing the resin particles in a dispersion medium in a closed vessel and at the same time impregnating the resin particles with a foaming agent, holding the resin particles in a heated and pressurized atmosphere, and then releasing the resin particles together with the dispersion medium into an atmosphere of a pressure lower than the internal pressure of the vessel to expand the resin particles.

    Abstract translation: PCT No.PCT / JP97 / 02022 Sec。 371日期1998年8月13日 102（e）1998年8月13日PCT 1997年6月11日PCT公布。 公开号WO98 / 25996 日期1998年6月18日为了获得在生产聚烯烃树脂发泡颗粒时具有高膨胀率的泡沫颗粒，存在产生泡孔直径不均匀的泡沫颗粒的问题。 用这种泡沫颗粒制成的任何模制品都具有尺寸稳定性差的缺点，其表面轮廓变得不均匀。 本发明涉及包含聚烯烃树脂作为基础树脂的泡沫颗粒，其中基础树脂含有硼酸的金属盐（不包括碱金属盐），使得原料树脂中硼酸的金属盐的含量 相当于50-50,000 ppm。 使用硼酸锌，硼酸镁等作为硼酸的金属盐。 通过使用含有硼酸金属盐的聚烯烃树脂制备发泡颗粒，制备树脂颗粒，将分散介质中的树脂颗粒分散在密闭容器中，同时用发泡剂浸渍树脂颗粒，保持 树脂颗粒在加热和加压的气氛中，然后将树脂颗粒与分散介质一起释放到低于容器的内部压力的压力的气氛中以膨胀树脂颗粒。

    Method for the production of substantially open-cell polystyrene sheet
    213.
    发明授权
    Method for the production of substantially open-cell polystyrene sheet 失效
    用于生产基本上开孔聚苯乙烯片的方法

    公开(公告)号：US6093751A

    公开(公告)日：2000-07-25

    申请号：US988775

    申请日：1997-12-11

    Applicant: Lanzani Federico ,  Renato Mauri

    Inventor： Lanzani Federico ,  Renato Mauri

    IPC: B65D81/26 ,  C08J5/18 ,  C08J9/00 ,  C08J9/14 ,  C08L25/06

    CPC classification number: C08J9/0061 ,  B65D81/264 ,  C08J5/18 ,  C08J9/141 ,  C08L25/06 ,  C08J2201/03 ,  C08J2205/05 ,  C08J2300/30 ,  C08J2325/04 ,  C08J2325/06 ,  C08J2425/00 ,  C08L2205/02 ,  Y10T428/1376 ,  Y10T428/24331

    Abstract: A method of producing a substantially open-cell, expanded polystyrene sheet, comprising the steps of:forming a mixture comprising from 30 to 95% of polystyrene incorporating an aliphatic hydrocarbon with 4-6 carbon atoms, from 0 to 65% of polystyrene, and from 0.2 to 10% of a nucleating agent,mixing the mixture obtained and melting it by heating inside an extruder,bringing the mixture to a temperature of 130-150.degree. C. in the final portion of the extruder,extruding the mixture in a lower-pressure atmosphere to produce an expanded sheet, which has a low density and a high capacity to absorb aqueous liquids, particularly if a surfactant is added to the starting mixture, and which, when coupled with two films of plastics material gives rise to a laminate suitable for the production, by thermoforming, of trays for foods which may release aqueous liquids.

    Abstract translation: 一种生产基本上开孔的发泡聚苯乙烯片的方法，包括以下步骤：形成含有30-95％的聚苯乙烯，其中聚苯乙烯含有4-6个碳原子的脂族烃，0-65％的聚苯乙烯，和 将0.2至10％的成核剂混合，将得到的混合物通过在挤出机内部加热使其熔融，使混合物在挤出机的最后部分达到130-150℃，将混合物挤出 产生膨胀片材，其具有低密度和高吸收含水液体的能力，特别是如果将表面活性剂加入到起始混合物中，并且当与两片塑料材料结合时产生层压材料 适用于通过热成型生产可能释放含水液体的食品的托盘。

    Process for the production of polyolefin resin foams
    214.
    发明授权
    Process for the production of polyolefin resin foams 失效
    生产聚烯烃树脂泡沫的方法

    公开(公告)号：US6087408A

    公开(公告)日：2000-07-11

    申请号：US367280

    申请日：1999-08-16

    Applicant: Satoshi Ide ,  Takashi Shibanuma

    Inventor： Satoshi Ide ,  Takashi Shibanuma

    IPC: C08J9/14 ,  C09K3/00 ,  C08J9/00

    CPC classification number: C08J9/149 ,  C08J2201/03 ,  C08J2203/14 ,  C08J2203/142 ,  C08J2323/02

    Abstract: This invention provides a process for preparing a polyolefin resin foam, comprising the step of extruding to a low-pressure zone a melt of polyolefin resin containing a volatile blowing agent uniformly dispersed therein, the process being characterized in that the volatile blowing agent is a mixture of 5 to 95% by weight of 1,1,1,3,3-pentafluoropropane and 95 to 5% by weight of a low-boiling aliphatic hydrocarbon having a boiling point of 15.degree. C. or lower. According to the invention, there is obtainable a foam of polyolefin resin which is excellent in heat insulating property, dimensional stability and the like and which can retain them for a long term, using a blowing agent which is free of ozone-depleting risks, unlikely to adversely affect global warming, nonflammable and highly compatible with raw materials for foams.

    Abstract translation: PCT No.PCT / JP98 / 00189 Sec。 371日期1999年8月16日 102（e）1999年8月16日PCT 1998年1月19日PCT PCT。 公开号WO98 / 36020 PCT 日本1998年8月20日本发明提供了一种制备聚烯烃树脂发泡体的方法，其包括将包含均匀分散在其中的挥发性发泡剂的聚烯烃树脂的熔体挤压到低压区的步骤，其特征在于， 发泡剂是5〜95重量％的1,1,1,3,3-五氟丙烷和95〜5重量％的沸点为15℃以下的低沸点脂肪族烃的混合物。 根据本发明，可以获得绝热性，尺寸稳定性等优异且可长期保持的聚烯烃树脂泡沫，使用不含臭氧消耗风险的发泡剂，不太可能 对全球变暖产生不利影响，不易燃，与泡沫原料高度相容。

    Medium density chlorinated polyvinyl chloride foam and process for preparing
    218.
    发明授权
    Medium density chlorinated polyvinyl chloride foam and process for preparing 失效
    中密度氯化聚氯乙烯泡沫及其制备方法

    公开(公告)号：US5912277A

    公开(公告)日：1999-06-15

    申请号：US17893

    申请日：1998-02-03

    Applicant: Robert Edwin Detterman

    Inventor： Robert Edwin Detterman

    IPC: C08J9/00 ,  C08J9/06 ,  C08J9/08 ,  C08K5/57

    CPC classification number: C08J9/0061 ,  C08J9/06 ,  C08J9/08 ,  C08K5/57 ,  C08J2201/03 ,  C08J2327/04 ,  C08J2327/24 ,  C08J2421/00

    Abstract: The present invention relates to a medium density chlorinated polyvinyl chloride foam and the method of preparing such a foam using a blend of chemical blowing agents. The foam having a specific gravity in the range of about 0.3 to about 1.5 comprises chlorinated polyvinyl chloride, a blend of decomposition type blowing agents, a tin stabilizer, an optional impact modifier and an optional high molecular weight process aid.

    Abstract translation: 本发明涉及一种中等密度氯化聚氯乙烯泡沫体，以及使用化学发泡剂的混合物制备这种泡沫的方法。 比重在约0.3至约1.5范围内的泡沫包括氯化聚氯乙烯，分解型发泡剂的混合物，锡稳定剂，任选的抗冲改性剂和任选的高分子量加工助剂。

    Removal of organic contaminants using polymeric sheets, films, strands and filaments
    220.
    发明授权
    Removal of organic contaminants using polymeric sheets, films, strands and filaments 失效
    使用聚合物片，薄膜，股线和细丝去除有机污染物

    公开(公告)号：US5840632A

    公开(公告)日：1998-11-24

    申请号：US723388

    申请日：1996-09-30

    Applicant: Gerald W. Miller

    Inventor： Gerald W. Miller

    IPC: B01D53/04 ,  B32B27/12 ,  C02F1/28 ,  C02F1/68 ,  C08J9/00 ,  C08L63/00

    CPC classification number: B01D53/0407 ,  B01D53/02 ,  B32B27/12 ,  C02F1/285 ,  C02F1/288 ,  C02F1/681 ,  C08J9/0061 ,  B01D2253/202 ,  C08J2201/03 ,  C08J2325/06 ,  C08J2421/00 ,  Y10T442/2025 ,  Y10T442/2139 ,  Y10T442/2508 ,  Y10T442/2918

    Abstract: A method and compositions for removing organic contaminants from contaminated liquid, gas, or soil in fluent form are easily practiced and handled, highly absorbent, and readily collected. A foamed sheet, film, strands, or filament mat is formed from a composition comprising 5-49% by weight polystyrene, polypropylene, or other polymer; about 0-1% by weight blowing agent such as sodium tetraborate; and substantially the balance of elastomeric material. Contaminated liquid, gas, or soil in fluid form, or mixtures thereof into contact with the sheet, film, strands, or mat, so that the sheet, film, strands, or mat absorb at least 90% (typically at least 100%) of their weight of organic contaminants from the contaminated material. A sheet or film may be formed by extruding through a sheet or film die a composition of 10-45% polystyrene, 0.1-1% blowing agent, and substantially the balance styrene/ butadiene/styrene triblock polymer; foamed strands may be formed by extruding through die holes a composition of 10-49% polystyrene, 0.1-1% blowing agent, and substantially the balance elastomeric material; and foamed filaments formed by extruding through die holes a composition of 5-45% polypropylene, 0-1% blowing agent, and substantially the balance elastomeric material are formed into a non-woven mat of continuous filaments with random orientation.

    Abstract translation: 从流体形式的污染液体，气体或土壤中除去有机污染物的方法和组合物易于实施和处理，高吸收性并容易收集。 由包含5-49重量％的聚苯乙烯，聚丙烯或其它聚合物的组合物形成发泡片材，薄膜，丝束或丝网垫; 约0-1％重量的发泡剂如四硼酸钠; 以及弹性体材料的基本平衡。 流体形式的污染的液体，气体或土壤或其混合物与片材，薄膜，丝束或垫接触，使得片材，薄膜，丝束或垫片吸收至少90％（通常至少100％）， 其污染物质的有机污染物重量。 可以通过片材或薄膜模头挤出10-45％聚苯乙烯，0.1-1％发泡剂和基本上平衡的苯乙烯/丁二烯/苯乙烯三嵌段聚合物的组合物来形成片材或薄膜; 可以通过模头孔挤出10-49％聚苯乙烯，0.1-1％发泡剂和基本上平衡的弹性体材料的组合物来形成发泡股线; 并且通过模孔挤出形成的发泡细丝由5-45％聚丙烯，0-1％发泡剂和基本上平衡的弹性体材料组成，形成具有随机取向的连续长丝的无纺毡。

Patent Agency Ranking