Abstract:
A curable organopolysiloxane composition comprising (A) an organopolysiloxane that contains at least two crosslinking reactive groups in each molecule, (B) a crosslinking agent, (C) a crosslinking catalyst, (D) a hollow filler having a true density of 0.001 to 3.000 g/cm 3 , in an amount that is at least 70 volume% of the total volume of component (A) and the hollow filler, (E) water, at 20 to 1,000 mass parts per 100 mass parts component (A), and (F) an emulsifying agent, at 0.01 to 30 mass parts per 100 mass parts component (E).
Abstract:
This invention relates to a method and apparatus for continuously producing a long bias fabric (18) comprising the steps of producing a cylindrical fabric (7) by a ring-like loom (1), withdrawing the cylindrical fabric (7) from the ring-like loom (1) under tension and preventing lug portions from being formed by folds and creases, and cutting and opening spirally the cylindrical fabric (7) while keeping such a state. The present invention can produce continuously and integratedly a high-quality long bias fabric (18) even when warps and wefts (2, 5) made of a high-strength low-elongation fibers are used.
Abstract:
A solventless method for the preparation of organically modified organopolysiloxanes comprising a hydrosilylation reaction of (A) liquid organopolysiloxane that contains at least one silicon atom-bonded hydrogen atom in each molecule with (B) a non-silicone liquid organic compound that contains at least one aliphatic carbon-carbon double bond in each molecule in the presence of (C) a hydrosilylation reaction catalyst, where the hydrosilylation reaction is carried out in a dispersion of component (B) in component (A) or of component (A) in component (B) having a microparticulate form of average particle size ≤100 μm induced by high-shear agitation of components (A) and (B).
Abstract:
A curable silicone coating agent, in particular of a condensation-reaction curing type, that contains a wet-process silica which satisfies requirements (1) to (3) given below: (1) average diameter of an agglomerated particle measured by a laser diffraction scattering method: not exceeding 5 micrometers; (2) percentage of silica particles with the size of not greater than 1 micrometers, as measured by the laser diffraction scattering method, per all silica particles: not less than 10%; and (3) boiled linseed oil absorption: not less than 200 cc/100 g.