Abstract:
A process for extruding polypropylene comprising extruding a composition comprising a polypropylene and a second acid scavenger and less than about 10 ppm of a nucleating agent.
Abstract:
A polyimide seamless belt for an image forming apparatus, which contains: polyimide containing a segment derived from aromatic diamine, and a segment derived from aromatic tetracarboxylic acid; and two types of carbon black, which are high-structure carbon black capable of imparting high conductivity, and acidic carbon black, where the two types of the carbon black are dispersed in the polyimide seamless belt, wherein the polyimide seamless belt has surface resistivity of 108Ω/□ or less.
Abstract:
A novel, branched, saturated, primary fatty acid amide is disclosed. Application areas are as a slip and/or antiblocking agent or mold release agent. The branched, saturated, primary fatty acid has a formula R—CO—NH2 where R is a saturated, branched hydrocarbon chain having 11 to 23 carbon atoms, wherein at least 60% by weight of the R—CO—NH2 molecules have monoalkyl branches and less than 25% by weight of the R—CO—NH2 molecules have polyalkyl branches.
Abstract:
A vibration damping material according to one aspect of the present invention comprises a composition as a main component, the composition being prepared by mixing based on 100 parts by weight of acrylic rubber, at least, in an external ratio, 0.01 to 15 parts by weight of organic peroxide that can crosslink between epoxy-based crosslinking points with each other, 25 to 50 parts by weight of carbon black having a mean particle diameter of 22 to 45 nm, and 15 to 35 parts by weight of carbon black having a mean particle diameter of 70 to 85 nm; and crosslinking crosslinking points in the acrylic rubber with each other through the organic peroxide.
Abstract:
Plasticizer blends comprise a triblend of diethylene glycol dibenzoate, dipropylene glycol dibenzoate, and 1,2-propylene glycol dibenzoate, in specified ratios, useful in combination with a multitude of thermoplastic polymers, thermosetting polymers, and elastomeric polymers and numerous applications, including but not limited to plastisols, adhesives, sealants, caulks, architectural coatings, industrial coatings, OEM coatings, inks, overprint varnishes, polishes, and the like. The advantages rendered by the use of the triblend depend on the type of polymer and application in which it is utilized and include among other advantages higher solvating power and lower processing time, low VOC's, reduced plasticizer freeze point, improved gelation and fusion characteristics, higher tensile strength, superior stain and extraction resistance, and improved rheology over traditional diblends of diethylene glycol dibenzoate and dipropylene glycol dibenzoate.
Abstract:
Elastomeric compositions containing a combination of selected carbon blacks. The resultant elastomers have improved durability and/or power generation. Such elastomers may be used in oilfield products, for example, as seals or stator liners. Methods of producing these elastomeric compositions are also disclosed.
Abstract:
A polyamide resin composition containing a polyamide resin (A) and a property imparting component. The composition comprises relative to 100 parts by volume of the polyamide resin (A), as the property imparting component, 50 to less than 100 parts by volume of flake graphite (B), 5 to 40 parts by volume of carbon fibers (C), and 0.1 to 5 parts by volume of a polyhydric alcohol (D).
Abstract:
A composition comprises (A) a silicone resin; (B) an organosilicon compound; (C) a hydrosilylation catalyst; and (D) a flame retardant component comprising aluminum hydroxide. The composition further comprises (E) a reflective component different from component (D) and comprising titanium dioxide. The composition forms articles having excellent physical properties, including reflectance, flame retardant properties, and self-extinguishing properties. An article formed from the composition and a method of forming a molded article are also provided.
Abstract:
The invention disclosed herein is a curable fluoroelastomer composition comprising i) a fluoroelastomer, ii) a polyhydroxy curative and iii) a mixture of anion trappers comprising y-aluminum oxide hydroxide and magnesium oxide. Cured articles made therefrom are resistant to volume swell in carboxylic acids.