Abstract: A clay mixture containing aluminum compounds is provided. The clay mixture includes an aluminum compound in a range from about 10% to about 90% by weight of the clay mixture; a clay in a range from about 5% to 60% by weight of the clay mixture; and a first and a second surfactants, wherein an amount of the first and the second surfactants is in a rage from about 0.2 to about 30% by weight of the clay mixture.

Abstract: The present invention relates to a polymer nanocomposite and the process for preparation of the same, wherein a positive-electric polyelectrolyte, a layer-structured inorganic material, such as silicate clay, and a polymer latex comprising an negative-electric surface are “co-agglutinated” to result in a polymer nanocomposite.

Abstract: The present invention relates to a polymer nanocomposite and the process for preparation of the same, wherein a positive-electric polyelectrolyte, a layer-structured inorganic material, such as silicate clay, and a polymer latex comprising an negative-electric surface are “co-agglutinated” to result in a polymer nanocomposite.

Abstract: Disclosed is a sPS nanocomposite with improved crystallization properties and higher mechanical strength, which comprises a polymer matrix containing syndiotactic polystyrene (sPS), and a layered clay material uniformly dispersed in the polymer matrix. The layered clay material is intercalated with an organic onium cation and optionally along with a polymer or oligomer which is compatible or partially compatible with sPS. The interlayer distances of the layered clay material are at least 20 Å. The sPS nanocomposite can be prepared by ways of in-situ polymerization, melt blending, or solution blending. According to the invention, the layered clay material dispersed in the sPS matrix not only leads to higher mechanical strength, but also, surprisingly, improves crystallization properties of sPS.

Abstract: A surface treating composition for treating long glass fibers for use in making long fiber-reinforced resin composites and methods for preparation and use thereof are provided. The surface treating compositions comprise(i) a wetting agent in an amount ranging between about 3 and about 40 wt. %, said wetting agent having a formula: ##STR1## wherein A=4-12; B=2-10; n=2-6; m=20-40; and R=CH.sub.3 or C.sub.2 H.sub.5 ; and a thermoplastic resin in an amount ranging between about 1 and about 40 wt. %, said thermoplastic resin is selected from the group consisting of polyamide polymers, polyamide copolymers, polyalkylcarbonate polymers, polyalkylcarbonate copolymers, and mixtures thereof. Reinforced thermoplastic composites having the treated glass fiber have excellent mechanical and uniform fiber dispersibility properties.

Abstract: A direct contact type charging component for use in electrophotographic process containing a protective surface layer which comprises a polyether-ester-amide block copolymer. The copolymer is environmentally stably having a volume resistivity between 10.sup.6 Ohm-cm and 10.sup.12 Ohm-cm and a Shore hardness between Shore D 5 and Shore D 90. During the electrophotographic process, a voltage is applied externally to the charging component to cause a charged component, which typically comprises a photo-conductive drum, to become electrostatically charged. In the preferred embodiment, the voltage consists of a direct voltage of .+-.200 to .+-.2,000 V overlapped with an alternating voltage having a peak-to-peak voltage of 4,000 V.

Abstract: A polyamide/copolyamide catalyst composition comprising a primary catalyst which comprises an alkali metal hypophosphite or an alkali-earth metal hypophosphite, and a cocatalyst which comprises an organic salt or an inorganic salt. The catalyst composition of this invention is most useful when used in conjunction with the reactive extrusion technology which requires a very fast polymerization rate to take full advantage of this evolving technology.

Abstract: A method for the polymerization of Nylon 6 from caprolactam and water using a catalyst composition comprising a primary catalyst, which can be an alkali metal hypophosphite or an alkali-earth metal hypophosphite, and an organic phosphite as cocatalyst. The catalyst composition used in this invention is most useful when used in conjunction with the reactive extrusion technology which requires a very fast polymerization rate to take full advantage of this evolving technology.

Abstract: A catalyst composition for the polymerization of polyamide/copolyamide comprising a primary catalyst which comprises an alkali metal hypophosphite or an alkali-earth metal hypophosphite, and an organic phosphite cocatalyst. The catalyst composition of this invention is most useful when used in conjunction with the reactive extrusion technology which requires a very fast polymerization rate to take full advantage of this evolving technology.

Abstract: A catalyst composition for the polymerization of Nylon 6 from caprolactam comprising a primary catalyst which comprises an alkali metal hypophosphite or an alkaliearth metal hypophosphite, and an organic phosphite cocatalyst. The catalyst composition of this invention is most useful when used in conjunction with the reactive extrusion technology which requires a very fast polymerization rate to take full advantage of this evolving technology.

Abstract: A catalyst composition for the polymerization of polyamide/copolyamide comprising a primary catalyst which comprises an alkali metal hypophosphite or an alkali-earth metal hypophosphite, and a cocatalyst which comprises an amine compound. The cocatalyst amine compound is selected from the group consisting of phenylene diamines, hindered amines, poly(hindered amines), and benzotriazoles. The catalyst composition of this invention is most useful when used in conjunction with the reactive extrusion technology which requires a very fast polymerization rate to take full advantage of this evolving technology.

Abstract: A method for the polymerization of Nylon 6 from caprolactam and water using a catalyst composition comprising a primary catalyst, which can be an alkali metal hypophosphite or an alkali-earth metal hypophosphite, and an amine cocatalyst. The amine cocatalyst can be selected from the group consisting of phenylene diamines, hindered amines, poly(hindered amines), Group I benzotriazoles, and Group II benzotriazoles. The catalyst composition used in this invention is most useful when used in conjunction with the reactive extrusion technology which requires a very fast polymerization rate to take full advantage of this evolving technology.

Abstract: A catalyst composition for the polymerization of Nylon 6 from caprolactam comprising a primary catalyst which comprises an alkali metal hypophosphite or an alkaliearth metal hypophosphite, and an amine cocatalyst. The amine cocatalyst can be selected from the group consisting of phenylene diamines, hindered amines, poly(hindered amines), Group I benzotriazoles, and Group I benzotriazoles. The catalyst composition of this invention is most useful when used in conjunction with the reactive extrusion technology which requires a very fast polymerization rate to take full advantage of this evolving technology.