摘要:
The present invention relates to a silicone rubber composition for fixing roll service. More specifically, the invention relates to a silicone rubber composition for fixing roll service that is easily molded into a fixing roll as used in devices such as electrophotographic copiers, facsimile machines, and laser printers and that yields a fixing roll with an excellent mechanical strength and excellent toner release properties.
摘要:
A method for producing a conductive liquid silicone rubber composition having an excellent storage stability and suitable for molding a conductive silicone rubber article with an arbitrary speed of curing and with good reproducibility of arbitrarily selected hardness and volume resistivity. The method comprises mixing component (A) which is a mixture of a conductive filler with a liquid diorganopolysiloxane having two or more silicon-bonded alkenyl groups in one molecule, component (B) which is a mixture of a conductive filler with a liquid diorganopolysiloxane having two or more silicon-bonded alkenyl groups in one molecule and a volume resistivity different from that of (A), component (C) a platinum-based catalyst; and component (D) which is a cross-linker that comprises an organopolysiloxane having two or more silicon-bonded hydrogen atoms in one molecule.
摘要:
Silicone rubber composition comprising an alkenyl-substituted diorganopolysiloxane, an inorganic filler, an organopolysiloxane that contains at least two silicon-bonded hydrogen atoms in each molecule, in a quantity that affords a value from 0.4 to 10 for the molar ratio of silicon-bonded hydrogen in the organopolysiloxane to alkenyl groups in the alkenyl-substituted diorganopolysiloxane, an organohydrogenpolysiloxane, in a quantity that affords a value from 0.01 to 0.5 for the molar ratio of silicon-bonded hydrogen in this component to alkenyl groups in the alkenyl-substituted diorganopolysiloxane, and a platinum catalyst. A fluororesin-covered fixing roll in which a fluororesin layer is placed over the circumference of a roll shaft with a silicone rubber layer interposed between the fluororesin layer and the roll shaft, wherein said silicone rubber composition is formed by curing the silicone rubber composition described above.
摘要:
A novel primer composition, which is especially adapted for promoting the adhesion of thermosetting rubbers to substrates having exceptionally inert surfaces, such a nickel, stainless steel and organic resins is disclosed. The composition comprises: (A) 100 parts, by weight, of an organosilicon compound selected from the group consisting of (1) alkenyltrialkoxysilane and (2) mild hydrolyzates of (1); (B) 0.01-200 parts, by weight, of a platinum compound; (C) 0.1-100 parts by weight of an organic titanic acid ester; and optionally (D) a solvent.
摘要:
Silicone rubber composition comprising an alkenyl-substituted diorganopolysiloxane, an inorganic filler, an organopolysiloxane that contains at least two silicon-bonded hydrogen atoms in each molecule, in a quantity that affords a value from 0.4 to 10 for the molar ratio of silicon-bonded hydrogen in the organopolysiloxane to alkenyl groups in the alkenyl-substituted diorganopolysiloxane, an organohydrogenpolysiloxane, in a quantity that affords a value from 0.01 to 0.5 for the molar ratio of silicon-bonded hydrogen in this component to alkenyl groups in the alkenyl-substituted diorganopolysiloxane, and a platinum catalyst.A fluororesin-covered fixing roll in which a fluororesin layer is placed over the circumference of a roll shaft with a silicone rubber layer interposed between the fluororesin layer and the roll shaft, wherein said silicone rubber composition is formed by curing the silicone rubber composition described above.
摘要:
A low durometer fixing roll comprising a roller shaft, a peelable organic resin layer established on the external circumferential surface of the roller shaft, and a silicone gel layer interposed between them. A silicone gel composition for use in a fixing roll, said gel composition comprising (A) an alkenyl-substituted organopolysiloxane, (B) an organohydrogenpolysiloxane, in a quantity sufficient to provide 0.1 to 5 moles of silicon-bonded hydrogen in component (B) per mole of alkenyl groups in component (A) and (C) a sufficient quantity of platinum catalyst for curing the silicone gel composition.
摘要:
Thermally conductive silicone rubber compositions, curable to elastomers having low permanent compression strain ratios, consisting of a polyorganosiloxane, a thermally conductive inorganic filler, an organosilicon compound having in each molecule at least three groups represented by the general formula of HR.sup.1.sub.2 Si, and an organic peroxide.
摘要:
A silicone rubber composition is prepared by mixing a diorganopolysiloxane which contains 0.1 to 5 weight % of low-molecular-weight organosiloxane with a vapor pressure at 200.degree. C. of at least 10 mm Hg, with at least 90 weight % of a low-molecular-weight organosiloxane with a boiling point not exceeding 250.degree. C. at 760 mm Hg and a curing agent with filler being optional. These silicone rubber compositions are useful for silicone rubber moldings which can be used to in applications involving electrical switch contacts resulting in electrical switch contact conduction free of defects.
摘要:
A silicone rubber composition that yields silicone rubber whose durometer can be freely reduced without a concomitant reduction in the mechanical properties of the silicone rubber. The reduction in durometer is achieved by controlling the concentration of an organosiloxane having hydrogen substitution on terminal silicon atoms.
摘要:
A therapeutic agent for myeloma comprising a combined use of a nitrogen mustard anticancer agent and anti-IL-6 receptor antibody. Thus, a therapeutic agent for myeloma comprising anti-IL-6 receptor antibody for use in combination with a nitrogen mustard anticancer agent; a therapeutic agent for myeloma comprising a nitrogen mustard anticancer agent for use in combination with anti-IL-6 receptor antibody; and a therapeutic agent for myeloma comprising a nitrogen mustard anticancer agent and anti-IL-6 receptor antibody.