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公开(公告)号：EP0279668B1
公开(公告)日：1997-03-26
申请号：EP88301359.1
申请日：1988-02-18
CPC分类号： B29C44/468 , B29K2023/00 , B29K2025/00 , B29K2105/043 , C08J9/14
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2.发明公开Method of providing a dimensionally-stable, closed-cell polyolefin foam having reduced blowing agent content to the end user 失效向最终用户提供具有降低的吹泡剂的尺寸稳定的封闭的聚烯烃泡沫的方法
公开(公告)号：EP0498327A3
公开(公告)日：1993-02-10
申请号：EP92101697.8
申请日：1992-02-03
发明人： Malone, Bruce A.
IPC分类号： B29C67/22
CPC分类号： B29C44/5663 , B29C44/468 , B29C44/5609 , B29K2023/00 , B29K2105/043 , B29K2105/046
摘要： Disclosed is a method of providing closed-cell polyolefin foam having reduced blowing agent content to an end user comprising (a) extruding the polyolefin to form the essentially continuous foam structure defining a multiplicity of channels extending generally longitudinally therethrough; (b) intermittently crimping the essentially continuous foam structure such that the channels extending therethrough are intermittently substantially closed off; (c) intermittently severing the essentially continuous, intermittently crimped foam structure at the crimps therein to form discrete foam structure portions having crimped end portions; (d) cooling the crimped, discrete foam structure portions to an extent sufficient to prevent substantial shrinkage of the crimped, discrete foam structure portions upon initiation of release of the flammable blowing agent from the foam; (e) excising the crimped end portions from the remainder of the crimped, discrete foam structure portions to initiate release of the flammable blowing agent and form uncrimped, discrete foam structure portions; and (f) providing the uncrimped, discrete foam structure portions to the end user.
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3.发明公开Method of providing a dimensionally-stable, closed-cell polyolefin foam having reduced blowing agent content to the end user 失效一种生产具有用于用户的降低的发泡剂含量的聚烯烃的尺寸稳定的，闭孔泡沫的过程。
公开(公告)号：EP0498327A2
公开(公告)日：1992-08-12
申请号：EP92101697.8
申请日：1992-02-03
发明人： Malone, Bruce A.
IPC分类号： B29C67/22
CPC分类号： B29C44/5663 , B29C44/468 , B29C44/5609 , B29K2023/00 , B29K2105/043 , B29K2105/046
摘要： Disclosed is a method of providing closed-cell polyolefin foam having reduced blowing agent content to an end user comprising (a) extruding the polyolefin to form the essentially continuous foam structure defining a multiplicity of channels extending generally longitudinally therethrough; (b) intermittently crimping the essentially continuous foam structure such that the channels extending therethrough are intermittently substantially closed off; (c) intermittently severing the essentially continuous, intermittently crimped foam structure at the crimps therein to form discrete foam structure portions having crimped end portions; (d) cooling the crimped, discrete foam structure portions to an extent sufficient to prevent substantial shrinkage of the crimped, discrete foam structure portions upon initiation of release of the flammable blowing agent from the foam; (e) excising the crimped end portions from the remainder of the crimped, discrete foam structure portions to initiate release of the flammable blowing agent and form uncrimped, discrete foam structure portions; and (f) providing the uncrimped, discrete foam structure portions to the end user.
摘要翻译： 公开的是提供闭孔聚烯烃泡沫的方法具有降低发泡剂含量在包括到最终用户（a）挤出聚烯烃，以形成基本上连续的泡沫结构限定的通道延伸通过基因反弹纵向存在的多个; （B）间歇地压接本质上检查的连续泡沫结构DASS延伸穿过那里间歇地基本上封闭模具通道; （C）间歇地切断在卷曲的连续本质上，间歇地卷缩泡沫结构的，以形成具有离散的泡沫结构的部分卷曲的端部; （D）冷却该卷曲的，离散的泡沫结构部分，以在程度足以防止卷曲的显着的收缩，在从泡沫的可燃性发泡剂的释放引发离散泡沫结构部分; （E）从所述压接的剩余部分切除压接端部，离散泡沫结构部分以引发易燃发泡剂的释放，并形成未卷曲的，离散的泡沫结构部分; 和（f）提供所述未卷曲的，离散的泡沫结构的部分给最终用户。
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公开(公告)号：EP0279668A3
公开(公告)日：1989-10-11
申请号：EP88301359.1
申请日：1988-02-18
CPC分类号： B29C44/468 , B29K2023/00 , B29K2025/00 , B29K2105/043 , C08J9/14
摘要： Improved closed cell foams, particularly suitable for use in packaging applications, comprise a plurality of coalesced parallel strands or profiles of thermoplastic resin. When the resin is a non-aromatic olefin, the heat seal strength of a film thereof is at least 30 Newtons/inch (2.5 cm) width. Preferably, the resin is a mixture of an olefin polymer resin and a copolymer of ethylene with one or more copolymerizable comonomers having a lower melting point than the olefin polymer resin. The cross-section of the strands or profiles and/or their spacial arrangement advantageously are such that they are joined at their extremities to form a network defining voids. The resin may contain up to 50 weight percent of a nucleating agent, preferably carbon black. The strands and profiles suitably are extruded through a multi-orificed die in which some orifices are temporarily blocked off to produced the desired structural shape.
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5.发明公开Faom structure of coalesced foam strands of profiles 失效Schaumstruktur auszusammengeführtenSchaumsträngenoder -profilen。
公开(公告)号：EP0279668A2
公开(公告)日：1988-08-24
申请号：EP88301359.1
申请日：1988-02-18
CPC分类号： B29C44/468 , B29K2023/00 , B29K2025/00 , B29K2105/043 , C08J9/14
摘要： Improved closed cell foams, particularly suitable for use in packaging applications, comprise a plurality of coalesced parallel strands or profiles of thermoplastic resin. When the resin is a non-aromatic olefin, the heat seal strength of a film thereof is at least 30 Newtons/inch (2.5 cm) width. Preferably, the resin is a mixture of an olefin polymer resin and a copolymer of ethylene with one or more copolymerizable comonomers having a lower melting point than the olefin polymer resin. The cross-section of the strands or profiles and/or their spacial arrangement advantageously are such that they are joined at their extremities to form a network defining voids. The resin may contain up to 50 weight percent of a nucleating agent, preferably carbon black. The strands and profiles suitably are extruded through a multi-orificed die in which some orifices are temporarily blocked off to produced the desired structural shape.
摘要翻译： 特别适用于包装应用的改进的闭孔泡沫包括多个聚结的平行的热塑性树脂的线或者轮廓。 当树脂是非芳族烯烃时，其膜的热封强度为至少30牛顿/英寸（2.5cm）宽度。 优选地，树脂是烯烃聚合物树脂和乙烯与一种或多种具有比烯烃聚合物树脂低的熔点的可共聚共聚单体的共聚物的混合物。 股线或轮廓的横截面和/或其空间排列有利地使得它们在其末端连接以形成限定空隙的网络。 该树脂可含有至多50重量％的成核剂，优选碳黑。 线材和型材适当地通过多孔模具挤出，其中一些孔口被暂时封闭以产生所需的结构形状。
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