Process for producing porous polymer

    公开(公告)号:US06797735B2

    公开(公告)日:2004-09-28

    申请号:US10332219

    申请日:2003-01-03

    Abstract: A method of production is provided which is capable of efficiently producing in a very short period of time a porous polymer possessing a uniform foam structure and truly excelling in absorption properties and physical properties. It is a method for the production of a porous polymer, characterized by comprising (a) an emulsifying step for forming a water-in-oil type high internal phase emulsion (HIPE) by mixing and stirring an oil phase containing a polymerizing monomer component and a surfactant as essential components, (b) a shaping step for shaping the HIPE in a specific form, and (c) a polymerizing step for polymerizing the shaped HIPE and controlling the temperatures of the emulsion at the component steps (a)-(c) so that they may not produce a change exceeding 10° C. or controlling all the component steps so that they may proceed at temperatures of not lower than 80° C.

    Process for producing porous polymer
    143.
    发明申请
    Process for producing porous polymer 有权
    生产多孔聚合物的方法

    公开(公告)号:US20040002555A1

    公开(公告)日:2004-01-01

    申请号:US10332219

    申请日:2003-01-03

    Abstract: A method of production is provided which is capable of efficiently producing in a very short period of time a porous polymer possessing a uniform foam structure and truly excelling in absorption properties and physical properties. It is a method for the production of a porous polymer, characterized by comprising (a) an emulsifying step for forming a water-in-oil type high internal phase emulsion (HIPE) by mixing and stirring an oil phase containing a polymerizing monomer component and a surfactant as essential components, (b) a shaping step for shaping the HIPE in a specific form, and (c) a polymerizing step for polymerizing the shaped HIPE and controlling the temperatures of the emulsion at the component steps (a)-(c) so that they may not produce a change exceeding 10null C. or controlling all the component steps so that they may proceed at temperatures of not lower than 80null C.

    Abstract translation: 提供了一种生产方法,其能够在非常短的时间内有效地生产具有均匀泡沫结构并且真正优异的吸收性能和物理性能的多孔聚合物。 本发明是一种生产多孔聚合物的方法,其特征在于包括:(a)通过混合并搅拌含有聚合单体成分的油相和(b)形成油包水型高内相乳液(HIPE)的乳化步骤, 作为必要成分的表面活性剂,(b)用于使特定形式的HIPE成形的成型步骤,和(c)聚合步骤(a) - (c)的聚合步骤,用于使成形HIPE聚合并控制乳液的温度 ),使得它们不会产生超过10℃的变化,或控制所有组分步骤,使其可以在不低于80℃的温度下进行。

    Continuous process for polymerizing, curing and drying high internal phase emulsions
    144.
    发明授权
    Continuous process for polymerizing, curing and drying high internal phase emulsions 有权
    用于聚合,固化和干燥高内相乳液的连续方法

    公开(公告)号:US06299808B1

    公开(公告)日:2001-10-09

    申请号:US09586908

    申请日:2000-06-05

    Abstract: The invention comprises a fully continuous process for shaping a high internal phase emulsion (HIPE) with a polymerizable continuous phase into dry foam, comprising 1) providing a high internal phase emulsion (HIPE) comprising (a) at least 70 percent by volume of an eternal phase comprising one or more polymerizable monomer; (b) a surfactant in an amount effective to produce a high internal phase emulsion; and (c) an internal phase; 20 depositing the emulsion onto a lower moving support substrate; 3) leveling the emulsion to a desired thickness above the support substrate; 4) polymerizing the monomers by running the emulsion and the lower moving support substrate through a heating zone for a time sufficient to polymerize at least 75% of the monomer in the HIPE by the end of the heating zone; and 5) drying the polymerized HIPE in a drying zone for a time sufficient to produce a foam having greater than 50% of the internal phase removed.

    Abstract translation: 本发明包括用于将具有可聚合连续相成型为干泡沫的高内相乳液(HIPE)成型为完全连续的方法,其包括1)提供高内相乳液(HIPE),其包含(a)至少70体积% 永久相包含一种或多种可聚合单体; (b)有效产生高内相乳液的表面活性剂; 和(c)内相; 20将乳液沉积到下移动的支撑基底上; 3)将乳液调平至支撑衬底上方所需的厚度; 4)通过使加热区域使乳液和下部移动的载体基材通过加热区域的末端使得至少75%的HIPE中的单体聚合足够的时间来聚合单体; 和5)在干燥区中干燥聚合的HIPE一段足以产生具有除去内相的50%以上的泡沫的时间。

    Light weight lignocellulosic molding products
    145.
    发明授权
    Light weight lignocellulosic molding products 失效
    轻质木质纤维素成型产品

    公开(公告)号:US5780519A

    公开(公告)日:1998-07-14

    申请号:US828332

    申请日:1997-03-28

    Applicant: Saburo Imoto

    Inventor: Saburo Imoto

    CPC classification number: C08J9/28 C08J9/30 C08J2201/0504

    Abstract: Lignocellulosic light weight molding products which are useful as heat insulator, shock absorber, sound absorber and so on and have open-celled foam-structure are mainly composed of lignocellulose that is able to use in not only fibrous shape but also other various shapes. They are at least composed of four components shown hereunder; (1) lignocellulose, (2) water soluble high polymer containing not less than two OH groups in a molecule and having the film properties of tensile strength 10 to 300 MPa and surface tension 30 to 65 mN/m in 0.4 wt % aqueous solution at 20.degree. C., (3) water soluble high polymer containing not less than two carboxyl groups in a molecule and/or anionic surfactant, and (4) high polymer having the film properties of tensile strength 0.1 to 10 MPa and ultimate elongation 200 to 2000%, 2nd transition point 30.degree. to 40.degree. C. and cohesion energy density 30 to 200 cal/cc.

    Abstract translation: 可用作隔热材料,减震器,吸声器等,具有开孔泡沫结构的木质纤维素轻质成型产品主要由不仅纤维形状而且可以用于其它各种形状的木质纤维素组成。 它们至少由以下所示的四个组成部分组成; (1)木​​质纤维素,(2)在分子中含有不少于两个OH基的水溶性高分子,并且在0.4重量%水溶液中具有10-300MPa的拉伸强度和30至65mN / m的表面张力 20℃,(3)分子中含有不少于2个羧基的水溶性高分子和/或阴离子表面活性剂,(4)具有拉伸强度为0.1〜10MPa,极限伸长率为200〜 2000%,第二转变点30〜40℃,内聚能密度30〜200cal / cc。

    Use of viscosity as an in-line diagnostic for high internal phase
emulsion generation
    148.
    发明授权
    Use of viscosity as an in-line diagnostic for high internal phase emulsion generation 失效
    使用粘度作为高内相乳液生成的在线诊断

    公开(公告)号:US5394738A

    公开(公告)日:1995-03-07

    申请号:US185654

    申请日:1994-01-24

    Abstract: A lightweight absorbent foam is produced using a high internal phase emulsion (HIPE), the production of which incorporates the use of capillary viscosity measurements as an in-line diagnostic for HIPE quality. The in-line diagnostics yield measurements of viscosity slope and amplitude. These measurements offer several advantages for monitoring emulsion quality, including stable high resolution measurement of hardware-independent parameters of the whole flow, without the need for sampling.

    Abstract translation: 使用高内相乳液(HIPE)生产轻质的吸收性泡沫,其生产包括使用毛细管粘度测量作为HIPE质量的在线诊断。 在线诊断产生粘度斜率和振幅的测量。 这些测量提供了监测乳液质量的几个优点,包括稳定的高分辨率测量整个流程的硬件无关参数,无需采样。

    Process to prepare low density porous crosslinked polymeric materials
    149.
    发明授权
    Process to prepare low density porous crosslinked polymeric materials 失效
    制备低密度多孔交联聚合物材料的方法

    公开(公告)号:US5362762A

    公开(公告)日:1994-11-08

    申请号:US226203

    申请日:1994-04-11

    CPC classification number: C08J9/283 C08F2/32 C08J2201/028 C08J2201/0504

    Abstract: Stable high internal phase water-in-oil emulsions containing polymerizable vinyl monomers, crosslinking monomers and initiators, useful in preparing low density porous crosslinked polymeric foams, are obtained by using a surfactant system containing (a) one or more sorbitan fatty acid ester or saccharide fatty acid ester and (b) a glycerol monofatty acid ester. A higher water to oil ratio water-in-oil emulsions can be formed with the same formulation by using the glycerol monofatty acid ester cosurfactant.

    Abstract translation: 通过使用含有(a)一种或多种脱水山梨糖醇脂肪酸酯或糖的表面活性剂体系,可获得含有可聚合乙烯基单体,交联单体和引发剂的稳定的高内相油包水乳液,其可用于制备低密度多孔交联聚合物泡沫体 脂肪酸酯和(b)甘油单脂肪酸酯。 通过使用甘油单脂酸酯辅助表面活性剂,可以用相同的配方形成更高的油包水比例的油包水乳液。

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