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    • 1. 发明申请
    • CROSS-LINKED POLYOLEFIN FOAMS COMPRISING CORK PARTICLES
    • WO2009128066A8
    • 2009-10-22
    • PCT/IL2009/000401
    • 2009-04-07
    • PALZIVZUR, BaruchDADON, OshriNEZER, EhudREISMAN, Benjamin Joshua
    • ZUR, BaruchDADON, OshriNEZER, EhudREISMAN, Benjamin Joshua
    • C08J9/00B29C44/34B29C44/56
    • The present invention provides a sheet of polymeric foam comprising chemically cross-linked, closed-cell, foam comprising at least one polyolefin;cork particles dispersed within said polymeric foam wherein said foam has a specific gravity of between 40-250kg/m3 and is essentially free of visible perforations. Also provided by the present invention is a process for producing a continuous polymeric sheet said comprising a chemically cross-linked, closed-cell, polyolefin foam comprising at least one polyolefin and cork particles, homogenously dispersed within the polyolefin foam wherein once produced, said continuous polymeric sheet has a specific gravity of between 40-250kg/m3 and is essentially free of visible perforations; the process comprising (i) continuously feeding into a mixing arrangement set at a temperature of between 60 C and 200 C a blend of at least one polyolefin resin, a blowing agent, a cross-linking agent and cork particles, to form therein a homogenous melt; (ii) transferring said melt into an extrusion line constructed to form a continuous sheet of said melt; (iii) conveying the continuous sheet into a heating module for heating said continuous sheet to a first temperature allowing cross-linking of said at least one polyolefin resin to obtain a cross-linked polyolefin sheet, said first temperature being lower than that required for activating said blowing agent; and (iv) heating the cross-linked polyolefin sheet to a second temperature allowing activation of said blowing agent, to obtain said continuous polymeric foam.
    • 4. 发明申请
    • CROSS-LINKED POLYOLEFIN FOAMS COMPRISING CORK PARTICLES
    • 包含K粒的交联聚IN IN。。。。。。。
    • WO2009128066A1
    • 2009-10-22
    • PCT/IL2009000401
    • 2009-04-07
    • PALZIVZUR BARUCHDADON OSHRINEZER EHUDREISMAN BENJAMIN JOSHUA
    • ZUR BARUCHDADON OSHRINEZER EHUDREISMAN BENJAMIN JOSHUA
    • C08J9/00B29C44/34B29C44/56
    • C08J9/0014B29C44/022B29C44/34B29C70/66B29K2023/00B29K2105/24B29K2711/02B29L2007/00C08J9/0061C08J9/0085C08J2201/03C08J2323/00C08J2323/08C08J2497/00
    • The present invention provides a sheet of polymeric foam comprising chemically cross-linked, closed-cell, foam comprising at least one polyolefin;cork particles dispersed within said polymeric foam wherein said foam has a specific gravity of between 40-250kg/m3 and is essentially free of visible perforations. Also provided by the present invention is a process for producing a continuous polymeric sheet said comprising a chemically cross-linked, closed-cell, polyolefin foam comprising at least one polyolefin and cork particles, homogenously dispersed within the polyolefin foam wherein once produced, said continuous polymeric sheet has a specific gravity of between 40-250kg/m3 and is essentially free of visible perforations; the process comprising (i) continuously feeding into a mixing arrangement set at a temperature of between 60 C and 200 C a blend of at least one polyolefin resin, a blowing agent, a cross-linking agent and cork particles, to form therein a homogenous melt; (ii) transferring said melt into an extrusion line constructed to form a continuous sheet of said melt; (iii) conveying the continuous sheet into a heating module for heating said continuous sheet to a first temperature allowing cross-linking of said at least one polyolefin resin to obtain a cross-linked polyolefin sheet, said first temperature being lower than that required for activating said blowing agent; and (iv) heating the cross-linked polyolefin sheet to a second temperature allowing activation of said blowing agent, to obtain said continuous polymeric foam.
    • 本发明提供一种聚合物泡沫,其包括化学交联的闭孔泡沫,其包含至少一种聚烯烃;分散在所述聚合泡沫内的软木颗粒,其中所述泡沫的比重在40-250kg / m 3之间,基本上 没有可见的穿孔。 本发明还提供了一种生产连续聚合物片材的方法,所述连续聚合物片材包括化学交联的闭孔聚烯烃泡沫,其包含至少一种聚烯烃和软木颗粒,均匀地分散在聚烯烃泡沫中,其中一旦产生,所述连续 聚合物片材的比重在40-250kg / m3之间,并且基本上没有可见的穿孔; 该方法包括(i)连续进料至设置在60℃和200℃之间的混合装置中的至少一种聚烯烃树脂,发泡剂,交联剂和软木颗粒的共混物,以在其中形成均匀的 熔化; (ii)将所述熔体转移到构造成形成所述熔体的连续片材的挤出线中; (iii)将连续片材输送到用于将所述连续片材加热到允许所述至少一种聚烯烃树脂交联以获得交联聚烯烃片材的第一温度的加热模块中,所述第一温度低于激活所需的温度 所述发泡剂; 和(iv)将交联聚烯烃片材加热至允许所述发泡剂活化的第二温度,以获得所述连续聚合物泡沫体。