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91. 发明授权

US4323531A Process for forming a plastic article 失效
标题翻译：用于形成塑料制品的方法
公开(公告)号：US4323531A
公开(公告)日：1982-04-06
申请号：US736628
申请日：1976-10-28
申请人： Norbert L. Bradley , Kenneth J. Cleereman , Ritchie A. Wessling
发明人： Norbert L. Bradley , Kenneth J. Cleereman , Ritchie A. Wessling
IPC分类号： B29C43/16 , B29C51/02 , B29C67/20 , D04H1/16
CPC分类号： B29C43/006 , B29C43/16 , B29C51/02 , B29C67/205 , B29C2791/001 , B29C43/00 , B29C55/00 , B29K2023/0683 , B29K2105/251
摘要： A scrap-free, substantially solid phase, relatively low temperature economical process for rapidly making plastic articles from resinous powders wherein the resultant articles can comprise various polymers including oriented polymers; polymers with a high practical heat distortion temperature; expanded polymers; ultra high molecular weight polymers; blended structures of two or more materials; or multilayered structures. The resinous powders are initially compressed into briquettes, which briquettes are heated to a temperature in the range from about the alpha transition temperature to less than the melting point or melt temperature of the polymer therein to both somewhat soften and sinter the briquettes. The sintered briquettes are forged under conditions which permit substantial plug flow deformation into preforms whereby fusion of the sintered resin powder particles occurs. The resulting preforms can then be cooled for later thermoforming or can be directly transferred to thermoforming molds for forming into desired shaped articles. It is also possible to form at least shallow cans, lids or other items directly in the forging step.
摘要翻译：用于从树脂粉末快速制造塑料制品的无废料，基本上固相，相对低温的经济方法，其中所得制品可包含各种聚合物，包括取向聚合物; 具有高实际热变形温度的聚合物; 膨胀聚合物; 超高分子量聚合物; 两种或多种材料的混合结构; 或多层结构。树脂粉末最初被压缩成团块，将该团块加热到从大约α转变温度到低于其中聚合物的熔点或熔融温度范围内的温度，以使两者稍微软化并烧结团块。烧结的团块在允许大量塞子流动变形成预制件的条件下锻造，从而发生烧结树脂粉末颗粒的熔融。然后将所得的预成型件冷却以用于随后的热成型，或者可以直接转移到热成型模具中以形成所需的成型制品。还可以在锻造步骤中直接形成至少浅的罐，盖或其它物品。

92. 发明授权

US4178205A High strength non-woven fibrous material 失效
标题翻译：高强度无纺纤维材料
公开(公告)号：US4178205A
公开(公告)日：1979-12-11
申请号：US825319
申请日：1977-08-17
申请人： Ritchie A. Wessling , William A. Foster , Dale M. Pickelman
发明人： Ritchie A. Wessling , William A. Foster , Dale M. Pickelman
IPC分类号： D21H17/34 , D21H17/44 , D21H3/38
CPC分类号： D21H17/44
摘要： A high strength, non-woven fibrous material is prepared by (a) mixing an aqueous slurry of a negatively charged, water-insoluble natural or synthetic fiber or blend of fibers with an amount up to the fiber charge reversal point of a structured particle latex having pH independent cationic charges bound at or near the particle surface to form an aqueous suspension, (b) draining water from the aqueous suspension to form a wet web (c) wet pressing the web and (d) drying the web by heating.
摘要翻译：通过以下方法制备高强度非织造纤维材料：（a）将带负电荷的水不溶性天然或合成纤维或纤维混合物的水性浆料与结构化颗粒胶乳的纤维充电反转点的量混合具有在颗粒表面处或附近结合的pH无关的阳离子电荷以形成水性悬浮液，（b）从水性悬浮液中排出水以形成湿纸幅（c）湿压纸幅和（d）通过加热干燥纸幅。

93. 发明授权

US4002586A Method for preparing cationic latexes 失效
标题翻译：阳离子胶乳的制备方法
公开(公告)号：US4002586A
公开(公告)日：1977-01-11
申请号：US569720
申请日：1975-04-21
申请人： Ritchie A. Wessling , Thomas C. Klingler , Victor E. Meyer
发明人： Ritchie A. Wessling , Thomas C. Klingler , Victor E. Meyer
IPC分类号： C08F8/34 , C08F236/06 , C08G59/40 , C08L63/00
CPC分类号： C08G59/4064 , C08F236/06 , C08F8/44 , C08F2800/20
摘要： Modified cationic latexes are prepared from nonionic or cationic latexes having particles containing chemically bound epoxide groups at or near the particle surface by reacting the latex with a nucleophile such as dimethyl sulfide and an acid such as acetic acid to form a latex having stabilizing onium ions chemically bound to the particle at or near the particle surface.
摘要翻译：改性阳离子胶乳由非离子或阳离子胶乳制备，其通过使胶乳与亲核试剂例如二甲基硫醚和酸如乙酸反应形成具有化学键合环氧化物基团的化学结合的环氧基团，从而形成具有稳定的离子化学与颗粒表面处或附近的颗粒结合。

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