Fluid transmitting polyolefin foams and method of making the same
    1.
    发明授权
    Fluid transmitting polyolefin foams and method of making the same 失效
    流体传输聚烯烃泡沫及其制备方法

    公开(公告)号:US4384032A

    公开(公告)日:1983-05-17

    申请号:US5324

    申请日:1979-01-22

    IPC分类号: C08J9/04 C08J9/00 B32B27/32

    摘要: A fluid transmitting polyolefin foam having a special open-cell cellular structure as compared with the conventional polyolefin foams having all cells closed is disclosed. Such a novel fluid transmitting polyolefin foam is produced by mixing a polyolefin with a polymer other than a polyolefin, said polyolefin and/or said polymer other than a polyolefin having a blowing agent incorporated therein and/or adhered thereto and subjecting the resulting mixture to extrusion moulding. The present fluid transmitting polyolefin foam has a wide variety of uses, for example, as a synthetic leather, synthetic filter cloth, separator of storage battery, synthetic paper, package, etc.

    摘要翻译: 公开了一种具有特殊开孔细胞结构的流体传输聚烯烃泡沫体,与具有全部细胞封闭的常规聚烯烃泡沫体相比。 这种新颖的流体传输聚烯烃泡沫体是通过将聚烯烃与除聚烯烃以外的聚合物,所述聚烯烃和/或所述聚合物混合而成的聚烯烃制成的,所述聚烯烃和/或所述聚合物不同于其中引入和/或粘附有发泡剂并且/ 成型。 本发明的流体传递性聚烯烃泡沫体具有多种用途,例如合成革,合成滤布,蓄电池隔膜,合成纸,包装等。

    Method of making a fluid transmitting porous tube or sheet
    2.
    发明授权
    Method of making a fluid transmitting porous tube or sheet 失效
    制造流体透过多孔管或片的方法

    公开(公告)号:US3939237A

    公开(公告)日:1976-02-17

    申请号:US462592

    申请日:1974-04-22

    摘要: A novel tube or sheet-shaped fluid transmitting porous material containing as a substrate, a polyolefin. Such porous material can be readily produced by subjecting a mixture of a polyolefin, a specific secondary polymer and a decomposition type blowing agent to extrusion moulding. The present porous material has certain unique features in its structure characterized in that there are recurring communications between cell wall openings forming a passage through which a fluid can pass. This porous material has excellent gas and liquid transmitting properties as well as an excellent filtering property and, in addition, is superior in resistance to chemicals and also has mechanical strength. Therefore, the porous material according to this invention is widely applicable in agriculture and industry as well as in the fields of synthetic leather etc.

    摘要翻译: 一种新颖的管状或片状流体传输多孔材料,其包含基质,聚烯烃。 这样的多孔材料可以容易地通过使聚烯烃,特定的二次聚合物和分解型发泡剂的混合物进行挤出成型来制造。 本发明的多孔材料在其结构中具有某些独特的特征,其特征在于,在细胞壁开口之间存在循环通信,其形成流体可以通过的通道。 该多孔质材料具有优异的气液传输性能以及优异的过滤性能,另外,耐化学性也优异,并且还具有机械强度。 因此,根据本发明的多孔材料广泛适用于农业和工业以及合成革等领域。

    Ethylene-vinyl acetate film suitable for stretch wrapping
    3.
    发明授权
    Ethylene-vinyl acetate film suitable for stretch wrapping 失效
    适用于拉伸包装的乙烯 - 乙酸乙烯酯薄膜

    公开(公告)号:US4066811A

    公开(公告)日:1978-01-03

    申请号:US566513

    申请日:1975-04-08

    摘要: There are disclosed films for stretch wrapping which comprise an olefin polymer, preferably a specific ethylene-vinyl acetate copolymer (referred to as "EVA copolymer" hereinafter) and specific polyalkylene ether polyols and non-ionic surfactants of fatty acid and polyhydric alcohol ester derivatives and which have suitable orientation expressed by heat shrinkage and excellent elastic recovery, by which excellent mechanical strength, wrapping finish, optical characteristics and preservability of the goods, especially fresh foods are attained. Method for producing said films is also disclosed. These films are suitable also for wrapping by automatic wrapping machines.

    摘要翻译: 公开了包括烯烃聚合物,优选特定乙烯 - 乙酸乙烯酯共聚物(以下称为“EVA共聚物”)和特定的聚亚烷基醚多元醇和脂肪酸和多元醇酯衍生物的非离子表面活性剂的膜, 其具有由热收缩和优异的弹性恢复表示的合适的取向,由此获得优异的机械强度,包装整理剂,光学特性和商品的保存性,特别是新鲜食品。 还公开了制备所述膜的方法。 这些膜也适用于通过自动包装机包装。

    Composition for drawn film, cold film made of said composition and
process for manufacturing of said film

    公开(公告)号:USRE33832E

    公开(公告)日:1992-02-25

    申请号:US557113

    申请日:1990-07-25

    摘要: A composition for shrinkable film which excells in heat-sealability, transparency, strength, and particularly low-temperature quick shrinking property and, therefore, suits production chiefly of packaging materials, a film made of the composition and a process for the manufacture of the film are disclosed. Specifically, the composition comprises one of the specific combinations of components (A), (B) and (C), i.e. the combinations of (A)+(B), (B)+(C) and (A)+(B)+(C), wherein (A) is non-rigid polyolefine resins such as ethylene vinyl acetate, (B) is an elastomer comprising a specific ethylene-.alpha.-olefin copolymer and an elastomer consisting of block copolymer having at least one monovinyl substituted aromatic, hydrocarbon polymer block and at least one polyolefin polymer block selected from at least one saturated polymer or unsaturated polymer made from mainly aliphatic conjugate diene derivative, and (C) is rigid polyolefin resins such as polypropylene. The packaging film excelling particularly in optical property, mechanical strength and low-temperature shrinking property is obtained by converting a homogeneous blend of the aforementioned composition, either in its crosslinked form or in its non-crosslinked form, into a tubular raw film, which is stretched at a temperature low enough for imparting a high orientation to the film. The process for the manufacture of this packaging film is also disclosed.

    Composition for drawn film, cold drawn film made of said composition and
process for manufacture of said film
    5.
    发明授权
    Composition for drawn film, cold drawn film made of said composition and process for manufacture of said film 失效
    用于拉伸膜的组合物,由所述组合物制成的冷拉伸膜和用于制造所述膜的方法

    公开(公告)号:US4701496A

    公开(公告)日:1987-10-20

    申请号:US825774

    申请日:1986-02-03

    摘要: A composition for shrinkable film which excels in heat-sealability, transparency, strength, and particularly low-temperature quick shrinking property and, therefore, suits production chiefly of packaging materials, a film made of the composition and a process for the manufacture of the film are disclosed. Specifically, the composition comprises one of the specific combinations of components (A), (B) and (C), i.e. the combinations of (A)+(B), (B)+(C) and (A)+(B)+(C), wherein (A) is non-rigid polyolefine resins such as ethylene vinyl acetate, (B) is an elastomer comprising a specific ethylene-.alpha.-olefin copolymer, and (C) is rigid polyolefin resins such as polypropylene. The packaging film excelling particularly in optical property, mechanical strength and low-temperature shrinking property is obtained by converting a homogeneous blend of the aforementioned composition, either in its crosslinked form or in its non-crosslinked form, into a tubular raw film, which is stretched at a temperature low enough for imparting a high orientation to the film. The process for the manufacture of this packaging film is also disclosed.

    摘要翻译: 一种热收缩性,透明性,强度,特别是低温快缩性优异的收缩性薄膜组合物,因此适用于主要由包装材料制成的薄膜,由该组合物制成的薄膜和薄膜的制造方法 被披露。 具体地,组合物包含组分(A),(B)和(C)的具体组合之一,即(A)+(B),(B)+(C)和(A)+(B )+(C),其中(A)是非刚性聚烯烃树脂如乙烯乙酸乙烯酯,(B)是包含特定乙烯-α-烯烃共聚物的弹性体,(C)是聚丙烯等刚性聚烯烃树脂。 通过将上述组合物的交联形式或非交联形式的均匀混合物转化成管状原料膜,可获得特别优异的光学性能,机械强度和低温收缩性能的包装膜, 在足够低的温度下拉伸以赋予膜高取向。 还公开了用于制造该包装膜的方法。

    Composition for cold drawn film
    6.
    发明授权
    Composition for cold drawn film 失效
    冷拉膜成分

    公开(公告)号:US4537935A

    公开(公告)日:1985-08-27

    申请号:US665492

    申请日:1984-10-29

    摘要: A composition for shrinkable film which excels in heat-sealability, transparency, strength, and particularly low-temperature quick shrinking property and, therefore, suits production chiefly of packaging materials, a film made of the composition and a process for the manufacture of the film are disclosed. Specifically, the composition comprises one of the specific combinations of components (A), (B) and (C), i.e. the combinations of (A)+(B), (B)+(C) and (A)+(B)+(C), wherein (A) is non-rigid polyolefine resins such as ethylene vinyl acetate, (B) is an elastomer comprising a specific ethylene-.alpha.-olefin copolymer, and (C) is rigid polyolefin resins such as polypropylene. The packaging film excelling particularly in optical property, mechanical strength and low-temperature shrinking property is obtained by converting a homogeneous blend of the aforementioned composition, either in its crosslinked form or in its non-crosslinked form, into a tubular raw film, which is stretched at a temperature low enough for imparting a high orientation to the film. The process for the manufacture of this packaging film is also disclosed.

    摘要翻译: 一种热收缩性,透明性,强度,特别是低温快缩性优异的收缩性薄膜组合物,因此适用于主要由包装材料制成的薄膜,由该组合物制成的薄膜和薄膜的制造方法 被披露。 具体地,组合物包含组分(A),(B)和(C)的具体组合之一,即(A)+(B),(B)+(C)和(A)+(B )+(C),其中(A)是非刚性聚烯烃树脂如乙烯乙酸乙烯酯,(B)是包含特定乙烯-α-烯烃共聚物的弹性体,(C)是聚丙烯等刚性聚烯烃树脂。 通过将上述组合物的交联形式或非交联形式的均匀混合物转化成管状原料膜,可获得特别优异的光学性能,机械强度和低温收缩性能的包装膜, 在足够低的温度下拉伸以赋予膜高取向。 还公开了用于制造该包装膜的方法。

    Shrinkable, stretchable multi-layered film
    7.
    发明授权
    Shrinkable, stretchable multi-layered film 失效
    可收缩的,可拉伸的多层膜

    公开(公告)号:US5300353A

    公开(公告)日:1994-04-05

    申请号:US863307

    申请日:1992-07-13

    摘要: A high-strength multi-layered film excellent in heat resistance, shrinkability and stretchability and usable for wrapping of various articles which comprises at least five layers comprising a surface layer (S layer) mainly composed of at least one polymer selected from (A), (B), etc. and as inner layers at least one base layer (SBC layer) containing mainly a mixed composition comprising a combination such as (A)+(B)+(C) or the like, at least one core layer (H layer) containing mainly a polymer selected from (C), and at least one auxiliary layer (R layer) containing mainly at least one polymer selected from (A) and (B), with a proviso that when the R layer is placed adjacent to the S layer, the R layer comprises the resin different from that of the S layer, said (A) being a low-density polyethylene or a copolymer of ethylene with a specific monomer, said (B) being a soft thermoplastic elastomer having a Vicat softening point of 80.degree. C. or lower, and said (C) being a specific polymer such as a crystalline polypropylene or the like or a mixed polymer thereof; and a process for producing the same.

    摘要翻译: PCT No.PCT / JP91 / 01551 Sec。 371日期:1992年7月13日 102(e)日期1992年7月13日PCT 1991年11月13日PCT PCT。 出版物WO92 / 08611 日本1991年5月29日。一种耐热性,收缩性和拉伸性优异且可用于包装各种制品的高强度多层膜,其包含至少五层,其包含主要由至少一种聚合物 选自(A),(B)等,以及作为内层的至少一个主要包含组合如(A)+(B)+(C)等的混合组合物的基底层(SBC层) 主要包含选自(C)的聚合物的至少一个核心层(H层)和至少一个主要含有至少一种选自(A)和(B)的聚合物的辅助层(R层),条件是当 所述R层与S层相邻放置,R层包含不同于S层的树脂,所述(A)为低密度聚乙烯或乙烯与特定单体的共聚物,(B)为 维卡软化点为80℃以下的软质热塑性弹性体,(C)蜂窝 特定聚合物如结晶聚丙烯等或其混合聚合物; 及其制造方法。

    High-sensitivity thermosensitive multilayer film and method for
production of plate-making stencil sheet
    8.
    发明授权
    High-sensitivity thermosensitive multilayer film and method for production of plate-making stencil sheet 失效
    高灵敏度热敏多层膜及制版蜡纸的生产方法

    公开(公告)号:US5089341A

    公开(公告)日:1992-02-18

    申请号:US389279

    申请日:1989-07-17

    摘要: The present invention relates to the high-sensitivity thermosensitive multilayer film and the method to produce plate-making paper using the film. In the present invention, the high-sensitivity thermosensitive multilayer film consists of at least one functional layer and at least one peeling layer. The said functional layer is made of the thermoplastic resin layer with the thickness of 0.1 to 12 .mu.m and with at least 30% of a thermal shrinkage rate and at least 50 g/mm.sup.2 of thermal shrinkage stress value. The peeling layer consists of the thermoplastic resin layer which is different from that of the functional layer and is the special multilayer film which is readily releasable and capable of exerting a compressive force to the functional layer. When the stencil sheet is manufactured by using the said multilayer film, the operation efficiency at time of lamination and the shrinkage capacity can improve by peeling the said peeling layer after lamination from porous supporting member. Moreover the resistance of the original paper to curling is remarkably enhanced under a high temperature circumstances by removing the compressive force working on the functional layer as result of peeling the peeling layer after lamination if the compressive force exists at the said peeling layer.

    摘要翻译: 本发明涉及高灵敏度热敏多层膜和使用该膜制备制版纸的方法。 在本发明中,高灵敏度热敏多层膜由至少一个功能层和至少一个剥离层构成。 所述功能层由热塑性树脂层制成,厚度为0.1〜12μm,热收缩率为30%以上,热收缩应力值为50g / mm2以上。 剥离层由与功能层不同的热塑性树脂层构成,是能够容易地剥离并且能够对功能层施加压缩力的特殊的多层膜。 当通过使用所述多层膜制造模板时,通过在从多孔支撑构件层压之后剥离所述剥离层可以提高层压时的操作效率和收缩能力。 此外,如果在所述剥离层处存在压缩力,则在高温环境下,通过去除作用在功能层上的压缩力,原纸在卷曲后的电阻显着增强,这是由于层压后的剥离层剥离而产生的。

    Composition for drawn film, cold drawn film made of said composition and
process for manufacture of said film
    9.
    发明授权
    Composition for drawn film, cold drawn film made of said composition and process for manufacture of said film 失效
    用于拉伸膜的组合物,由所述组合物制成的冷拉伸膜和用于制造所述膜的方法

    公开(公告)号:US4481334A

    公开(公告)日:1984-11-06

    申请号:US457363

    申请日:1983-01-12

    摘要: A composition for shrinkable film which excels in heat-sealability, transparency, strength, and particulaly low-temperature quick shrinking property and, therefore, suits production chiefly of packaging materials, a film made of the composition and a process for the manufacture of the film are disclosed. Specifically, the composition comprises one of the specific combinations of components (A), (B) and (C), i.e. the combinations of (A)+(B), (B)+(C) and (A)+(B)+(C), wherein (A) is non-rigid polyolefine resins such as ethylene vinyl acetate, (B) is an elastomer comprising a specific ethylene-.alpha.-olefin copolymer, and (C) is rigid polyolefin resins such as polypropylene. The packaging film excelling particularly in optical property, mechanical strength and low-temperature shrinking property is obtained by converting a homogenenous blend of the aforementioned composition, either in its crosslinked form or in its non-crosslinked form, into a tubular raw film, which is stretched at a temperature low enough for imparting a high orientation to the film. The process for the manufacture of this packaging film is also disclosed.

    摘要翻译: 一种收缩膜组合物,其热封性,透明性,强度和特定的低温快缩性优异,因此主要适用于包装材料的生产,由该组合物制成的薄膜和该薄膜的制造方法 被披露。 具体地,组合物包含组分(A),(B)和(C)的具体组合之一,即(A)+(B),(B)+(C)和(A)+(B )+(C),其中(A)是非刚性聚烯烃树脂如乙烯乙酸乙烯酯,(B)是包含特定乙烯-α-烯烃共聚物的弹性体,(C)是聚丙烯等刚性聚烯烃树脂。 通过将上述组合物的均匀混合物以其交联形式或其非交联形式转化成管状原料膜,得到特别优异的光学性能,机械强度和低温收缩性能的包装膜,其为 在足够低的温度下拉伸以赋予膜高取向。 还公开了用于制造该包装膜的方法。