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    • 1. 发明授权
    • Electrically conductive polymeric compositions
    • 导电聚合物组合物
    • US4288352A
    • 1981-09-08
    • US23632
    • 1979-03-26
    • Robert A. WeissRobert D. Lundberg
    • Robert A. WeissRobert D. Lundberg
    • C08L23/00C08K3/00C08K3/02C08K3/04C08K5/00C08K5/09C08K7/00C08K7/06C08L7/00C08L21/00C08L23/26C08L25/00C08L33/00C08L33/02C08L101/00H01B1/24C08L91/00
    • H01B1/24C08K7/06
    • This invention relates to the injection moldable and extrusion type electrically conductive polymeric blend compositions having a viscosity at 200.degree. C. at 0.73 sec.sup.-1 of less than about 8.times.10.sup.5 poises. The compositions used for elastomeric articles include a neutralized sulfonated polymer; graphite fiber at a concentration of about 1 to about 50 parts by weight per 100 parts by weight of neutralized sulfonated polymer; and a preferential plasticizer at about less than 60 parts by weight based on 100 parts by weight of the neutralized sulfonated polymer. The composition may also optionally include fillers, oils and other additives. These blend compositions can be readily processed due to their superior rheological properties on conventional plastic fabrication equipment, especially on low and high pressure injection molding or extrusion equipment into electrically conductive articles having excellent physical and electrical properties.
    • 本发明涉及注塑和挤出型导电聚合物共混组合物,其在200℃下的粘度为0.73秒-1小于约8×10 5泊。 用于弹性制品的组合物包括中和的磺化聚合物; 石墨纤维,其浓度为每100重量份中和的磺化聚合物约1至约50重量份; 和基于100重量份中和的磺化聚合物约60重量份的优选增塑剂。 组合物还可以任选地包括填料,油和其它添加剂。 这些共混组合物由于其在常规塑料制造设备上的优异流变性能而可以容易地加工,特别是在低压和高压注塑或挤出设备上具有优异的物理和电学性能的导电制品中。
    • 4. 发明授权
    • Polymeric compositions of co- and terpolymers
    • 共聚物和三元共聚物的聚合物组合物
    • US4526951A
    • 1985-07-02
    • US492945
    • 1983-05-09
    • Robert D. LundbergRobert A. Weiss
    • Robert D. LundbergRobert A. Weiss
    • C08F236/04C08L9/00C08F228/02
    • C08L9/00C08F236/04
    • The present invention relates to polymeric compositions formed from sulfonated co- or terpolymers which are formed by a free radical co- or terpolymerization process, wherein the resultant co- or terpolymers have an Mn of about 5,000 to 200,000 and these co- or terpolymers have at least about 0.5 weight percent of chemically combined sulfur therein. The free radical co- or terpolymerization process of the instant invention can be generally described as a free radical emulsion polymerization of at least one conjugated diene or a mixture of styrene and butadiene with a sulfonate monomer which is water soluble, at a temperature sufficient to cause polymerization, wherein the initiator is preferably based on a peroxide initiator accelerated by a reducing agent, and suitable surfactants are employed. Upon completion of the free radical polymerization, the resultant latex is coagulated and the water insoluble polymer is recovered.
    • 本发明涉及由通过自由基共聚或三元聚合方法形成的磺化共聚物或三元共聚物形成的聚合物组合物,其中所得共聚物或三元共聚物具有约5,000至200,000的<上标&Mn,并且这些共聚物或三元共聚物具有 其中至少约0.5重量%的化学结合硫。 本发明的自由基共聚或三元共聚方法通常可以描述为至少一种共轭二烯或苯乙烯和丁二烯的混合物与水溶性磺酸酯单体的自由基乳液聚合,其温度足以导致 聚合,其中引发剂优选基于通过还原剂加速的过氧化物引发剂,并且使用合适的表面活性剂。 完成自由基聚合后,所得胶乳凝结,回收水不溶性聚合物。