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公开(公告)号：US4400488A
公开(公告)日：1983-08-23
申请号：US372856
申请日：1982-04-28
申请人： Joginder Lal , Sandra J. Walters
发明人： Joginder Lal , Sandra J. Walters
摘要： The green strength of compositions containing elastomers and/or up to 100 percent of reclaimed rubber is improved by the addition of crystalline or semi-crystalline butene polymers selected from the group consisting of polybutene and interpolymers made from 1-butene with at least one monomer selected from the group consisting of alpha-olefins, non-conjugated dienes, and non-conjugated polyenes. Although reclaimed rubbers are utilized, an unexpected increase in green strength of an unvulcanized blend is obtained. The reclaimed rubbers utilized in the blend may be those which have been devulcanized by mechanical energy, heat, and/or chemical agents. Additionally and preferably, the rubbers may be reclaimed through the use of microwave energy.Additionally, the unvulcanized properties of compositions containing 100 percent of scrap rubber which has been reclaimed using microwave energy are significantly improved by adding crystalline or semi-crystalline alpha-olefin polymers, such as polyethylene or polypropylene. Unexpected improvements in solvent resistance and molding properties of the uncured blends are also achieved.
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2.发明授权
公开(公告)号：US4321101A
公开(公告)日：1982-03-23
申请号：US131312
申请日：1980-03-18
CPC分类号： B63B59/00 , B44C1/17 , Y10T29/49719 , Y10T29/49732
摘要： A coating for hulls of ships to be applied underwater to areas of the hull not accessible when ship is in dry dock. The means for applying the coating may take several forms: (1) a multilayered tape system having impregnated in or carrying an antifoulant and having an adhesive tape operable underwater on one side; (2) a sponge like layer having an antifoulant paint or coating liquid which can be squeezed onto the hull; (3) the use of a water soluble sponge having mixed therein microspheres of resin and pigment and microspheres of activator material such that when the microspheres or crushed, the pigmented resin, which may contain an antifoulant, and the activator are mixed and cured to form a coating on the hull while the sponge material will dissolve away when exposed over its surface to seawater. The preferred means and method for applying the coating is to mount the tape system on the dock blocks in a dry dock before the dry dock is flooded to admit the ship and is activated by the settling of the ship onto the blocks as the water is withdrawn from the dry dock. The coating may be applied by hand to small areas of damaged coating of the ship hull.
摘要翻译： 船舶在船坞处于干船坞时，船体的船体应用于船体的不可接近的地方。 施加涂层的方法可以有几种形式：（1）浸渍或携带防污剂并具有在一侧可水下操作的胶带的多层胶带系统; （2）具有可以挤压到船体上的防污漆或涂布液的海绵状层; （3）使用其中混合有树脂和颜料的微球和活化剂材料的微球的水溶性海绵，使得当微球或粉碎时，可含有防污剂的着色树脂和活化剂混合并固化形成 当海绵材料在其表面上暴露于海水时，海绵材料将溶解掉，从而在船体上涂覆涂层。 施加涂层的优选方法和方法是在干船坞被淹没之前将干燥船坞的胶带系统安装在码头上，以允许船舶进入船舶，并且当水被取出时通过将船舶沉降到块上来激活 从干坞。 涂层可以手工施加到船体受损涂层的小区域。
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公开(公告)号：US4257925A
公开(公告)日：1981-03-24
申请号：US43947
申请日：1979-05-30
申请人： Graham F. Freeguard
发明人： Graham F. Freeguard
IPC分类号： C08F279/02 , C08J11/06 , B29H19/00
CPC分类号： C08J11/06 , C08F279/02 , C08J2321/00 , Y02W30/701
摘要： Large quantities of reclaimed tire rubber can be incorporated into plastics material without seriously impairing its impact strength by a method which comprises the steps of swelling the reclaimed tire rubber with a quantity of monomer which is insufficient to saturate the reclaimed tire rubber and polymerizing the swollen mass.The method is effective despite the multiplicity of additives such as extenders, antioxidants and lubricants present in the reclaimed tire rubber.The preferred monomer is styrene.In certain cases the plastics material can be electroplated after suitable chemical treatment.
摘要翻译： 大量的再生轮胎橡胶可以并入到塑料材料中，而不会严重损害其冲击强度，方法包括以下步骤：用一定量的单体使再生轮胎橡胶膨胀，所述单体不足以使再生轮胎橡胶饱和并使溶胀质量聚合 。 尽管再生轮胎橡胶中存在多种添加剂如增量剂，抗氧化剂和润滑剂，但该方法是有效的。 优选的单体是苯乙烯。 在某些情况下，塑料材料可以在适当的化学处理后进行电镀。
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4.发明授权
公开(公告)号：US4250129A
公开(公告)日：1981-02-10
申请号：US886160
申请日：1978-03-13
申请人： Thomas W. Winstead
发明人： Thomas W. Winstead
IPC分类号： B29C49/00 , B29C47/00 , B29C51/02 , B29C51/22 , B29C55/00 , B29C55/14 , B29H19/00 , B29D7/04
CPC分类号： B29C51/22 , B29C47/0021 , B29C51/02 , B29C47/00
摘要： A method and apparatus for continuously extruding, biaxially orienting and forming molded products from a web of thermoplastic material and further, continuously separating the products from the web selvage, stacking and handling the products and recycling the web selvage for further extrusion. The method and apparatus use continuous molding devices, namely, multiple mold cavities in a rotating polygon configuration over the peripheral surface of which the biaxially oriented web is securely and continuously positioned by a follower roller interfacing the polygon with a biaxial orientation device. Continuous and immediate interfacing is effected to prevent loss of orientation in the web which is kept at a temperature suitable for ingestion thereof into the mold cavities by vacuum, pressure or plug assist. In one preferred embodiment the inertia at the interface between the undulating peripheral surface of the rotating mold polygon and the biaxial orientation apparatus is reduced to an optimal minimum.
摘要翻译： 一种用于从热塑性材料的网状物连续挤出，双轴取向和成型模制产品的方法和装置，并且进一步连续地从纤维网边缘分离产品，堆叠和处理产品以及再循环网状物料以进一步挤出。 该方法和装置使用连续的模制装置，即在旋转多边形构型上的多个模腔，其外周表面上的双轴取向腹板通过使多边形与双轴取向装置对接的随动辊被牢固且连续地定位。 进行连续和即时的连接以防止纤维网中的取向的损失，其通过真空，压力或插头辅助保持在适合于将其摄入模腔中的温度。 在一个优选实施例中，旋转模具多边形的起伏周边表面与双轴定向装置之间的界面处的惯性减小到最佳最小值。
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公开(公告)号：US4161464A
公开(公告)日：1979-07-17
申请号：US889999
申请日：1978-03-24
申请人： Paul P. Nicholas
发明人： Paul P. Nicholas
CPC分类号： C08J11/28 , C08J2321/00 , Y02W30/706
摘要： A devulcanized rubber composition is disclosed which is obtained by low temperature phase transfer catalyzed devulcanization of commercial scrap rubber, such as a vulcanized polyisoprene rubber, butadiene-styrene rubber, cis-polybutadiene rubber used for vehicle tires. The devulcanized rubber of this invention is distinguishable from conventional reclaim rubber in that devulcanized rubber is substantially free of polysulfide crosslinks which are selectively broken during the process of this invention with negligible main chain scission.A process for devulcanization of scrap rubber is disclosed comprising (a) comminuting the scrap to obtain vulcanizate particles in the size range from about 325 U.S. Standard mesh (44 microns) to about 6 mesh (3.36 mm), (b) swelling the vulcanizate particles with an organic solvent having dissolved therein a predetermined concentration of an onium salt, and (c) contacting the vulcanizate particles, at a temperature below about 150.degree. C., with an aqueous solution containing OH.sup.- ions to selectively disrupt enough polysulfide crosslinks to produce a devulcanized, recyclable rubber.
摘要翻译： 公开了一种脱硫橡胶组合物，其通过商业废橡胶的低温相转移催化脱硫获得，例如用于车辆轮胎的硫化聚异戊二烯橡胶，丁二烯 - 苯乙烯橡胶，顺式聚丁二烯橡胶。 本发明的脱硫橡胶与常规回收橡胶是可区分的，因为脱硫橡胶基本上不含多硫化物交联，其在本发明的方法中具有可忽略的主链断裂的选择性断裂。
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公开(公告)号：US3736277A
公开(公告)日：1973-05-29
申请号：US3736277D
申请日：1971-04-21
申请人： GEN MOTORS CORP
发明人： BENDER H
CPC分类号： C08J11/00 , B05B15/1266
摘要： PRIMER PAINT OVERSPRAY SLUDGE IS WASHED, DRIED AND ITS THERMOSETTING RESIN BINDER FULLY CURED. THE DRY SOLIDS ARE GROUND TO FORM FILLER PARTICLES OF 200 MESH OR SMALLER. THEY ARE THEN MIXED WITH A VISCOUS LIQUID THERMOSETTING GRINDING RESIN AND FURTHER COMMINUTED UNTIL AT LEAST 90% OF THE PARTICLES HAVE BEEN REDUCED TO ONE TO FIVE MICRONS. THIS GRINDING RESIN-ULTRAFINE FILLER PARTICLE MIXTURE IS MIXED WITH ADDITIONAL THERMOSETTING BINDER RESIN AND SOLVENT TO OBTAIN A SUITABLE SPRAYABLE PRIMER PAINT.
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公开(公告)号：US3712777A
公开(公告)日：1973-01-23
申请号：US3712777D
申请日：1971-06-01
发明人： SHERER K
CPC分类号： B29C45/20 , B29C45/17 , B29C2045/386
摘要： A method and apparatus for remelting plastic sprue material remaining adjacent a mold in an injection molding machine after an injection molding cycle of operation. Pressure is applied in a conventional manner to heated plastic for passage through a heated nozzle member in an injection molding machine. The nozzle contains a shuttle member which is moved to an injection position as the melted heated plastic is passed through the nozzle and the shuttle member, through a sprue line and then to the mold cavity. After the plastic solidifies in the mold cavity, a sprue removal pin is passed through the sprue line so as to remove the waste material or sprue material from the sprue line. This movement of the sprue removal pin moves the sprue back towards the nozzle and the sprue moves the shuttle member to a retraction position. The sprue then passes through a second path of travel which is past the heated portion of the nozzle for reheating and remelting the sprue material for later use thereof in an injection molding cycle.
摘要翻译： 一种在注塑成型周期之后，在注模机中重新熔化留在模具附近的塑料注口材料的方法和装置。 压力以常规方式施加到加热的塑料上，以通过注射成型机中的加热喷嘴构件。 喷嘴包含一个穿梭部件，随着熔融的加热塑料通过喷嘴和穿梭部件，通过浇注线移动到喷射位置，然后到达模腔。 塑料在模腔中凝固后，将浇口取出针穿过浇口线，以便从浇注线中除去废料或浇道材料。 浇道清除针的这种移动将浇口向喷嘴移动，并且浇道将梭子件移动到缩回位置。 浇口然后穿过第二行进路径，其经过喷嘴的加热部分，以便再次加热并重新熔化浇注材料，以便在注射成型循环中稍后使用。
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8.发明授权
公开(公告)号：US3584089A
公开(公告)日：1971-06-08
申请号：US3584089D
申请日：1969-09-12
申请人： CELANESE CORP
CPC分类号： C08J11/06 , C08J2301/10 , D01F8/02 , Y02W30/701
摘要： METHOD OF UTILIZING "WASTE" CELLULOSE TRIACRETATE-SECONDARY CELLULOSE ACETATE MULTICOMPONENT FILAMENTARY MATERIAL IN PRODUCING A MULTICOMPONENT FILAMENTARY MATERIAL. INVOLVES INJECTING INTO DOPE STREAM OF SECONDARY CELLULOSE ACETATE A SOLUTION OF "WASTE" MULTICOMPONENT FILAMENTARY MATERIAL OF CELLULOSE TRIACETATE AND SECONDARY CELLULOSE ACETATE, CONTRACTING THE SO-MODIFIED CELLULOSE ACETATE DOPE STREAM WITH A DOPE STREAM OF CELLULOSE TRIACETATE TO FORM A COMPOSITE STREAM, PASSING THE COMPOSITE DOPE STREAM BY LAMINAR FLOW TO A JET, AND EXTRUDING THE COMPOSITE DOPE STREAM THROUIGH THE JET TO FORM MULTICOMPONENT FILAMENTARY MATERIAL. THEREAFTER MAY SELECTIVELY SAPONIFY SO AS TO REGENERATE CELLULOSE FROM THE CELLULOSE ACETATE, RESULTING IN MULTICOMPONENT FILAMENTS OF CELLULOSE TRIACETATE AND REGENERATED CELLULOSE.
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9.发明授权Process for continously monitoring and controlling the product film quality from a polymer production unit 失效从聚合物生产单元连续监测和控制产品膜质量的过程
公开(公告)号：US4442054A
公开(公告)日：1984-04-10
申请号：US263731
申请日：1981-05-14
CPC分类号： B29B13/00 , B29C47/92 , B29C2947/926 , B29C2947/92657 , B29C2947/92876 , B29C2947/92904 , B29C47/0021 , B29C47/0026
摘要： A process for continuously monitoring and controlling product film quality from a polymer production unit and for automatically separating acceptable and unacceptable polymer product includes the steps of continuously formulating a solid particulate polymer product in the polymer production unit; withdrawing a product sample and preparing a film from the product sample; analyzing the film properties; continuously delivering the product remaining after product sampling to a residence holding device; and providing a signal representative of the film analysis so as to divert acceptable product in the holding device to product storage or unacceptable product to a by-product delivery line.
摘要翻译： 用于从聚合物生产单元连续监测和控制产品膜质量并自动分离可接受和不可接受的聚合物产品的方法包括在聚合物生产单元中连续配制固体颗粒聚合物产物的步骤; 取出产品样品并从产品样品制备薄膜; 分析膜性质; 将产品取样后剩余的产品连续地送到住宅保持装置; 并提供表示胶片分析的信号，以便将保持装置中的可接受产品转移到产品储存或不可接受的产品到副产品输送管线。
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公开(公告)号：US4160749A
公开(公告)日：1979-07-10
申请号：US880536
申请日：1978-02-23
CPC分类号： C08J11/28 , C08J2375/04 , Y02W30/706
摘要： The instant invention is directed to a process for dissociating cellular and non-cellular polyurethane resins into re-usable starting products for the isocyanate polyaddition process, wherein the polyurethane is reacted with associates of lactams and adduct-formers having at least two Zerewitinoff-active hydrogen atoms at from 150.degree. to 250.degree. C., optionally at elevated pressure, the improvement wherein from 35 to 1000 parts, by weight, based on 100 parts, by weight, of the polyurethane, of an associate mixture of:(a) from 4 to 50 parts, by weight, of a lactam or azalactam, based on 100 parts, by weight, of polyurethane; and a mixture of:(b) water and/or a compound having a molecular weight of from 62 to 200 having at least two Zerewitinoff-active hydrogen atoms; and(c) a polyhydroxyl compound having a molecular weight of from 300 to 6000; is used, and the proportion by weight of components (b) to (c) is from 1:10 to 10:1, and wherein said component (a) is used in a quantity such that said 35 to 1000 parts comprises from 4 to 50 parts of component (a).
摘要翻译： 本发明涉及将细胞和非细胞聚氨酯树脂解离成用于异氰酸酯加聚方法的可再使用的起始产物的方法，其中聚氨酯与具有至少两个Zerewitinoff活性氢的内酰胺和加合物形成剂的缔合物反应 原子在150℃至250℃，任选地在升高的压力下，其改进在35至1000份（重量），基于100份（重量）聚氨酯的下列混合物：
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