公开(公告)号：US4898915A

公开(公告)日：1990-02-06

申请号：US525953

申请日：1983-08-24

申请人： H. James Harwood ,  Ramendra N. Majumdar ,  Shih-Liang Yang

发明人： H. James Harwood ,  Ramendra N. Majumdar ,  Shih-Liang Yang

IPC分类号： C08F212/14 ,  C09K8/588

CPC分类号： C08F212/14 ,  C09K8/588

摘要： A composition and process for making an alternating copolymerization of acceptor monomers such as acrylic acid and derivatives thereof and donor monomers containing free amine groups therein such as an aminostyrene compound. The free amine groups are initially protected by conversion to an imide derivative such as phthalimide, or the like, and then reacted with the acceptor monomers. After copolymerization, the free amine is regenerated. The alternating copolymerization reaction is usually carried out in the presence of Lewis acids which act as complexing agents. The alternating copolymers of the present invention are useful as antistatic agents or as thickening agents as in oil recovery.

摘要翻译： 用于使受体单体如丙烯酸及其衍生物和其中含有游离胺基的供体单体如氨基苯乙烯化合物进行交替共聚的组合物和方法。 最初通过转化成酰亚胺衍生物如邻苯二甲酰亚胺等来保护游离胺基，然后与受体单体反应。 共聚后，游离胺再生。 交替共聚反应通常在作为络合剂的路易斯酸存在下进行。 本发明的交替共聚物可用作抗静电剂或作为在油回收中的增稠剂。

公开(公告)号：US07419557B2

公开(公告)日：2008-09-02

申请号：US11221461

申请日：2005-09-08

申请人： Ramendra N. Majumdar ,  Ronald F. Page

发明人： Ramendra N. Majumdar ,  Ronald F. Page

IPC分类号： B29D30/06

CPC分类号： B60C23/0493 ,  B29D30/0662 ,  B29D2030/0072 ,  B29D2030/0077 ,  B29D2030/0637 ,  B60C5/14

摘要： A method is provided for protecting a virgin surface of a tire innerliner from contamination by a release agent during curing. A pressure-sensitive adhesive (PSA)-coated thermoformable film is pressed onto an exposed virgin surface of a green tire innerliner to adhere the PSA to the virgin surface and thereby form a protected green innerliner. The PSA is based on a rubber that is compatible with the rubber of the tire innerliner. The protected green innerliner is then exposed to the release agent, and cured. By virtue of the PSA, the film stays reliably in position. The thermoformable film is then removed to reveal the cured virgin surface substantially free of the release agent.

摘要翻译： 提供了一种保护轮胎内衬层的未加工表面的方法，以防止在固化过程中脱模剂的污染。 将压敏粘合剂（PSA）涂覆的可热成膜可压制在生轮胎内衬的暴露的未加工表面上，以将PSA粘附到原始表面，从而形成受保护的绿色内衬。 PSA基于与轮胎内衬的橡胶相容的橡胶。 保护的绿色内衬然后暴露于脱模剂，并固化。 凭借PSA，胶片可靠地保持在适当位置。 然后除去可热成形的膜以显示基本上不含脱模剂的固化的原始表面。

公开(公告)号：US5503940A

公开(公告)日：1996-04-02

申请号：US327776

申请日：1994-10-24

申请人： Ramendra N. Majumdar ,  Thomas E. Duncan ,  Richard M. D'Sidocky ,  James R. Herberger, Sr. ,  Lewis T. Lukich ,  Becky G. Dunn

发明人： Ramendra N. Majumdar ,  Thomas E. Duncan ,  Richard M. D'Sidocky ,  James R. Herberger, Sr. ,  Lewis T. Lukich ,  Becky G. Dunn

IPC分类号： C08K5/3415 ,  C09J121/00 ,  B60C9/13

CPC分类号： C09J121/00 ,  C08K5/3415 ,  Y10T428/31826 ,  Y10T428/31833 ,  Y10T428/31855 ,  Y10T428/31859 ,  Y10T428/31877 ,  Y10T428/31909 ,  Y10T428/31924

摘要： An elastomeric adhesive composition or cushion which binds various elastomeric layers together is solventless and comprises a blend of a bis-imide compound, one or more elastomers, and a tackifier. The elastomeric adhesive has strong blowout protection and can be utilized to form a laminate of a buffed cured tire carcass carcass to a cured or uncured tire tread.

摘要翻译： 将各种弹性体层结合在一起的弹性体粘合剂组合物或缓冲剂是无溶剂的，并且包含双酰亚胺化合物，一种或多种弹性体和增粘剂的共混物。 弹性体粘合剂具有强烈的喷射保护性，并且可以用于将抛光的固化轮胎胎体胎体的层压体形成到固化或未固化的轮胎胎面。

公开(公告)号：US5397519A

公开(公告)日：1995-03-14

申请号：US945566

申请日：1992-09-16

申请人： Ramendra N. Majumdar

发明人： Ramendra N. Majumdar

IPC分类号： C08J5/04 ,  C08L21/00 ,  D04H1/56 ,  D04H3/16 ,  B29B9/00

CPC分类号： C08J5/046 ,  C08L21/00 ,  D04H1/56 ,  C08J2307/00 ,  C08J2321/00

摘要： Reinforcing material which does not have a melting point which is compatible with the processing temperature of an elastomer can be incorporated into the elastomer in the form of melt blown fibers. In the method of the invention, melt blown fibers are made by melting a reinforcing material in an extruder, and extruding the reinforcing material through a die comprising many small holes, while simultaneously blowing air or nitrogen, under high pressure, through the die holes, and collecting the resulting material on rotating rolls. The fibers thus formed are mixed into an elastomer using conventional mixing means. A composite made by the method is also provided.

摘要翻译： 可以以熔喷纤维的形式将不具有与弹性体的加工温度相容的熔点的增强材料引入到弹性体中。 在本发明的方法中，熔喷纤维是通过在挤出机中熔化增强材料制成的，并且通过包括许多小孔的模具挤出增强材料，同时在高压下同时吹入空气或氮气，通过模具孔， 并将所得材料收集在旋转辊上。 由此形成的纤维使用常规的混合装置混合成弹性体。 还提供了由该方法制成的复合材料。

公开(公告)号：US07083695B2

公开(公告)日：2006-08-01

申请号：US10326428

申请日：2002-12-19

申请人： Frederick F. Vannan ,  Ramendra N. Majumdar

发明人： Frederick F. Vannan ,  Ramendra N. Majumdar

IPC分类号： B29D30/58 ,  B60C1/00 ,  B60C11/00 ,  B60C11/03

CPC分类号： B29D30/0061 ,  B29L2030/002 ,  B60C11/00 ,  B60C11/1346 ,  Y10S152/12

摘要： A pneumatic tire comprising a black colored tread with at least one colored groove wherein the top surface of the tread designed to be ground-contacting is essentially free of non-black color. A non-black component is placed over the tread strip and covered with a thermoformable film prior to forming the groove pattern. After vulcanization, the film is removed, and the tread lugs buffed free of color, if necessary, thereby forming a tire having color localized in the tread grooves.

摘要翻译： 一种充气轮胎，其包括具有至少一个着色凹槽的黑色胎面，其中设计成与地面接触的胎面的顶表面基本上不含非黑色。 在形成凹槽图案之前，将非黑色部件放置在胎面带上并用可热成形的膜覆盖。 在硫化后，除去膜，并且如果需要，胎面胶片无色抛光，从而形成具有定位在胎面槽中的颜色的轮胎。