Open-cell foam composed of high-melting point plastics
    1.
    发明授权
    Open-cell foam composed of high-melting point plastics 有权
    开孔泡沫由高熔点塑料组成

    公开(公告)号:US07655705B2

    公开(公告)日:2010-02-02

    申请号:US10784815

    申请日:2004-02-24

    IPC分类号: C08J9/04 B29C44/00

    摘要: The present invention relates to an open-cell foam, and to a process for producing this open-cell foam by melting a thermoplastic, or a mixture comprising a thermo-plastic, giving a melt, mixing the melt with at least one blowing agent under pressure, and foaming the melt comprising the blowing agent via extrusion into the free atmosphere, the temperature of the melt during the foaming process being greater than the melt temperature at which a closed-cell foam is formed, and/or adding a pulverulent solid, and/or adding a foreign polymer. The present invention further relates to the use of the foam of the invention for sound deadening or for producing materials by sound deadening.

    摘要翻译: 本发明涉及一种开孔泡沫体,以及一种通过熔化热塑性塑料制造该开孔泡沫的方法,或包含热塑性塑料的混合物,得到熔体,将熔体与至少一种发泡剂混合在一起 压力,并且通过挤出将包含发泡剂的熔体发泡到自由气氛中,在发泡过程中熔体的温度大于形成闭孔泡沫的熔体温度和/或添加粉状固体, 和/或添加外来聚合物。 本发明还涉及本发明的泡沫塑料在隔音中的用途,或者通过隔音材料制造材料的用途。

    Expandable olefin bead polymers
    2.
    发明授权
    Expandable olefin bead polymers 有权
    可膨胀烯烃珠聚合物

    公开(公告)号:US06448300B1

    公开(公告)日:2002-09-10

    申请号:US09669733

    申请日:2000-09-26

    IPC分类号: C08J918

    摘要: The invention relates to expandable olefin bead polymers which comprise a blowing agent with a boiling point of from −5 to 150° C., selected from the group consisting of alkanes, alkanols, ketones, ethers and esters. The particles are unfoamed and have a bulk density above 500 g/l, and can be foamed to a bulk density below 200 g/l after storage for one hour at room temperature in free contact with the atmosphere. They are prepared by impregnating polyolefin pellets in suspension in a pressure vessel with the blowing agent, cooling the batch below 100° C., reducing the pressure and isolating the particles.

    摘要翻译: 本发明涉及可膨胀的烯烃珠聚合物,其包含沸点为-5至150℃的发泡剂,其选自烷烃,链烷醇,酮,醚和酯。 颗粒未发泡并且具有高于500g / l的堆积密度,并且在与大气自由接触的室温下储存1小时后,可以发泡至200g / l以下的体积密度。 它们通过将聚烯烃粒料悬浮在用发泡剂的压力容器中浸渍而制备,将批料冷却至100℃以下,降低压力并分离颗粒。

    Preparation of expandable granules, and the production of foams therefrom
    6.
    发明授权
    Preparation of expandable granules, and the production of foams therefrom 失效
    可开发颗粒的制备,以及其生产工艺

    公开(公告)号:US5091126A

    公开(公告)日:1992-02-25

    申请号:US562659

    申请日:1990-08-03

    摘要: A process for the preparation of expandable granules based on polyaryl ether sulfones and/or polyether imides, containing from 5 to 20% by weight of a physical blowing agent, the blowing agent and the polymers being mixed in an extruder and subsequently extruded directly into a medium at less than 40.degree. C., and a process for the production of foams from expandable granules based on polyaryl ether sulfones and/or polyether imides, containing from 5 to 20% by weight of a physical blowing agent, the granules being press molded at from 120.degree. to 250.degree. C. and at a pressure of from 5 to 30 bar to form a sheet, and the sheet being subsequently foamed by reducing the pressure, are described.

    摘要翻译: 一种制备基于聚芳基醚砜和/或聚醚酰亚胺的可膨胀颗粒的方法,其包含5至20重量%的物理发泡剂,发泡剂和聚合物在挤出机中混合,随后直接挤出成 介质在低于40℃的范围内,以及由基于聚芳基醚砜和/或聚醚酰亚胺的可膨胀颗粒生产泡沫的方法,其含有5至20重量%的物理发泡剂,所述颗粒被压制成型 在120℃至250℃和5至30巴的压力下形成片材,并且随后通过降低压力使片材发泡。

    RAPIDLY DISPERSABLE, PARTICULATE FILM-COATING COMPOSITION BASED ON POLYVINYL ALCOHOL-POLYETHER GRAFT COPOLYMERS
    9.
    发明申请
    RAPIDLY DISPERSABLE, PARTICULATE FILM-COATING COMPOSITION BASED ON POLYVINYL ALCOHOL-POLYETHER GRAFT COPOLYMERS 审中-公开
    基于聚乙烯醇聚合物共聚物的快速分散的颗粒状涂膜组合物

    公开(公告)号:US20100048760A1

    公开(公告)日:2010-02-25

    申请号:US12515171

    申请日:2007-12-11

    IPC分类号: A61K8/81 B29B9/04

    CPC分类号: A61K9/284

    摘要: Solid particulate film-coating compositions consisting of a) 40-90% by weight, preferably 40 to 70% by weight, of a polyvinyl alcohol-polyether graft copolymer (component A), b) 10 to 60% by weight, preferably 20 to 45% by weight, of a chromatic or achromatic colorant (component B) c) 0 to 30% by weight of further conventional auxiliaries (component C) where the amount of components A to C adds up to 100% by weight, which are obtained by extrusion of a melt of components A) to C) and subsequent shaping.

    摘要翻译: 由a)40-90重量%,优选40-70重量%的聚乙烯醇 - 聚醚接枝共聚物(组分A)组成的固体颗粒膜涂料组合物,b)10至60重量%,优选20至 45重量%的彩色或无色染料(组分B)c)0至30重量%的其它常规助剂(组分C),其中组分A至C的添加量达到100重量%,其得到 通过将组分A)的熔体挤出到C)和随后的成型。