Method of forming a surfaced cellulosic composite panel
    1.
    发明授权
    Method of forming a surfaced cellulosic composite panel 失效
    形成表面纤维素复合板的方法

    公开(公告)号:US5716563A

    公开(公告)日:1998-02-10

    申请号:US357378

    申请日:1994-12-16

    Abstract: A method of producing a surfaced composite panel of cellulosic particulates, such as wood flakes, involves the application of polymer forming foamable material to at least one of the first and second major surfaces of the panel, contacting said at least one of the first and second surfaces with a pressure applying surface to apply pressure thereto, foaming the polymer forming foamable material while pressure is applied and curing the applied foam material to produce a polymeric coating on the panel with the desired surface, which is typically extremely smooth. One or both surfaces may be surface treated in this manner. A skin formed on the surface of the panel is believed to add to the strength and stiffness of the coating on the panel. A wide variety of foaming systems may be used to accomplish this surface treating. By avoiding sanding the surface treated panel, the skin remains intact. The resulting panel, in addition to being extremely smooth as desired, resists water penetration when subjected to water or high humidity conditions. The resulting panel is receptive to adhesives for purposes of securing overlaying materials such as vinyl, reduces formaldehyde emissions when a panel formed of the resin which emits formaldehydes is surface treated.

    Abstract translation: 生产纤维素颗粒如木屑的表面复合板的方法涉及将聚合物形成可发泡材料施加到面板的第一和第二主表面中的至少一个上,使所述第一和第二表面中的至少一个接触 具有压力施加表面以施加压力的表面,在施加压力的同时使聚合物形成发泡材料,并固化所施加的泡沫材料,以在面板上产生具有期望表面的聚合物涂层,其通常非常光滑。 一个或两个表面可以以这种方式进行表面处理。 认为在面板表面上形成的皮肤增加了面板上涂层的强度和刚度。 可以使用各种发泡系统来完成该表面处理。 通过避免打磨表面处理的面板,皮肤保持原样。 除了根据需要非常光滑之外,所得到的面板在经受水或高湿度条件时抗水渗透。 所得到的面板接受粘合剂,以便确保覆盖材料例如乙烯基,当由发出甲醛的树脂形成的面板进行表面处理时,减少甲醛释放。

    Surfaced cellulose composite panel and panel forming method
    2.
    发明授权
    Surfaced cellulose composite panel and panel forming method 失效
    浮雕纤维素复合板和面板成型方法

    公开(公告)号:US5436069A

    公开(公告)日:1995-07-25

    申请号:US110338

    申请日:1993-08-23

    Abstract: A method of producing a surfaced composite panel of cellulosic particulates, such as wood flakes, involves the application of polymer forming foamable material to at least one of the first and second major surfaces of the panel, contacting said at least one of the first and second surfaces with a pressure applying surface to apply pressure thereto, foaming the polymer forming foamable material while pressure is applied and curing the applied foam material to produce a polymeric coating on the panel with the desired surface, which is typically extremely smooth. One or both surfaces may be surface treated in this manner. A skin formed on the surface of the panel is believed to add to the strength and stiffness of the coating on the panel. A wide variety of foaming systems may be used to accomplish this surface treating. By avoiding sanding the surface treated panel, the skin remains intact. The resulting panel, in addition to being extremely smooth as desired, resists water penetration when subjected to water or high humidity conditions. The resulting panel is receptive to adhesives for purposes of securing overlaying materials such as vinyl, reduces formaldehyde emissions when a panel formed of the resin which emits formaldehydes is surface treated.

    Abstract translation: 生产纤维素颗粒如木屑的表面复合板的方法涉及将聚合物形成可发泡材料施加到面板的第一和第二主表面中的至少一个上,使所述第一和第二表面中的至少一个接触 具有压力施加表面以施加压力的表面,在施加压力的同时使聚合物形成发泡材料,并固化所施加的泡沫材料,以在面板上产生具有期望表面的聚合物涂层,其通常非常光滑。 一个或两个表面可以以这种方式进行表面处理。 认为在面板表面上形成的皮肤增加了面板上涂层的强度和刚度。 可以使用各种发泡系统来完成该表面处理。 通过避免打磨表面处理的面板,皮肤保持原样。 除了根据需要非常光滑之外,所得到的面板在经受水或高湿度条件时抗水渗透。 所得到的面板接受粘合剂,以便确保覆盖材料例如乙烯基,当由发出甲醛的树脂形成的面板进行表面处理时,减少甲醛释放。

    Rapid setting adhesive and method of its use
    5.
    发明授权
    Rapid setting adhesive and method of its use 失效
    快速固化胶及其使用方法

    公开(公告)号:US5626705A

    公开(公告)日:1997-05-06

    申请号:US482512

    申请日:1995-06-07

    Abstract: A rapid curing adhesive for wood finger jointing and laminating and a method of its use are disclosed. The adhesive consists of two parts that are used as a honeymoon system. One part is used on one side of the joint being formed and the other part on the other side. When the parts are joined under pressure a very rapid reaction occurs resulting in a durable weather resistant joint. Wood finger joints bonded with the adhesive can be handled for further processing within as little time as 15 seconds. The first part of the adhesive is a conventional resorcinol-formaldehyde or phenol-resorcinol formaldehyde resin containing a hardener such as an alkylene group donor. The second part is a similar resin lacking any hardener but containing a modifier which is a heterocyclic oxygen and nitrogen containing compound. Morpholine has proved to serve well as the modifier. The hardener in the first part is used in a sufficient amount to effect a thermosetting cure for the resin used in both parts. Despite the rapid reaction when the two parts are combined, the adhesive has a significant closed assembly time tolerance before application of full pressure to the joint.

    Abstract translation: 公开了一种用于木指接合和层压的快速固化粘合剂及其使用方法。 粘合剂由用作蜜月系统的两部分组成。 一部分用于形成的接头的一侧,另一部分用于另一侧。 当部件在压力下接合时,发生非常快速的反应,导致持久的耐候性接头。 与粘合剂粘合的木指接头可以在15秒钟内进行进一步处理。 粘合剂的第一部分是含有诸如亚烷基供体的固化剂的常规间苯二酚 - 甲醛或酚 - 间苯二酚甲醛树脂。 第二部分是不含任何​​硬化剂但含有杂环含氧和含氮化合物的改性剂的类似树脂。 已经证明吗啉作为改性剂。 使用第一部分中的固化剂足够量以对两部分中使用的树脂进行热固化固化。 尽管组合两个部分时,快速反应,但是在向接头施加全压之前,粘合剂具有显着的闭合组装时间公差。

    Phenolic compounds containing/neutral fractions extract and products
derived therefrom from fractionated fast-pyrolysis oils
    6.
    发明授权
    Phenolic compounds containing/neutral fractions extract and products derived therefrom from fractionated fast-pyrolysis oils 失效
    含有/中性馏分的酚类化合物提取物和从分馏的快速裂解油衍生的产物

    公开(公告)号:US5223601A

    公开(公告)日:1993-06-29

    申请号:US647020

    申请日:1991-01-29

    Abstract: A process for preparing phenol-formaldehyde novolak resins and molding compositions in which portions of the phenol normally contained in said resins are replaced by a phenol/neutral fractions extract obtained from fractionating fast-pyrolysis oils. The fractionation consists of a neutralization stage which can be carried out with aqueous solutions of bases or appropriate bases in the dry state, followed by solvent extraction with an organic solvent having at least a moderate solubility parameter and good hydrogen bonding capacity.Phenolic compounds-containing/neutral fractions extracts obtained by fractionating fast-pyrolysis oils from a lignocellulosic material, is such that the oil is initially in the pH range of 2-4, being neutralized with an aqueous bicarbonate base, and extracted into a solvent having a solubility parameter of approximately 8.4-9.11 [cal/cm.sup.3 ].sup.1/2 with polar components in the 1.8-3.0 range and hydrogen bonding components in the 2-4.8 range and the recovery of the product extract from the solvent with no further purification being needed for use in adhesives and molding compounds.The product extract is characterized as being a mixture of very different compounds having a wide variety of chemical functionalities, including phenolic, carbonyl, aldehyde, methoxyl, vinyl and hydroxyl. The use of the product extract on phenol-formaldehyde thermosetting resins is shown to have advantages over the conventional phenol-formaldehyde resins.

    Abstract translation: 制备苯酚 - 甲醛酚醛清漆树脂的方法和其中通常在所述树脂中含有的苯酚部分被从分馏快速热解油获得的酚/中性馏分提取物代替的成型组合物。 分馏由中和阶段组成,其可以在干燥状态下用碱或适当碱的水溶液进行,然后用至少具有中等溶解度参数和良好氢键能力的有机溶剂进行溶剂萃取。 通过从木质纤维素材料中分馏快速裂解油获得的含酚化合物/中性馏分提取物使得油最初处于2-4的pH范围内,用碳酸氢盐水溶液中和,并萃取到具有 在1.8-3.0范围内极性组分的溶解度参数为约8.4-9.11 [cal / cm3] 1/2,2-4.8范围内的氢键组分和不经进一步纯化从溶剂中回收产物提取物 需要用于粘合剂和模塑料。 产品提取物的特征在于具有多种化学官能度的非常不同的化合物的混合物,包括酚类,羰基,醛,甲氧基,乙烯基和羟基。 使用产品提取物对苯酚 - 甲醛热固性树脂显示出优于常规酚醛树脂的优点。

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