Abstract: A curable composition comprising (A) an organic polymer containing at least one reactive silicon functional group crosslinkable to produce an elastomer by the formation of a siloxane bond in its molecule and (B) an organic silicon compound having a molecular weight of not less than 140 and represented by the formula (1):[(CH.sub.3).sub.3 SiO].sub.n R.sup.1 (1)wherein R.sup.1 is a residue of an alcohol or a weak acid which has a valency of n, and n is a positive integer. The composition of the invention can give cured product having excellent modulus and elongation as well as has excellent storage stability.

Abstract: A moisture curable polymer composition comprising (A) an organic polymer having at least one reactive silicone group in a molecule and (B) a compound having one silanol group in a molecule and/or a compound which reacts with water or moisture to form a compound having one silanol group in a molecule, which is cured with moisture to give an elastomeric material with improved tensile properties and surface characteristics.

Abstract: A novel moisture-curable polymer useful as a pressure sensitive adhesive, a paint, a sealant, etc. obtained by polymerizing a polymerizable monomer in the presence of an organic polymer having at least one reactive silicon-containing functional group in the molecule on the average. A pressure sensitive adhesive composition having excellent adhesive property as well as excellent initial tackiness, heat resistance, workability and weather resistance comprising a polymer obtained by polymerizing a polymerizable monomer in the presence of (A) an organic polymer having at least one reactive silicon functional group in the molecule on the average and/or (B) an organic polymer having at least one olefin group in the molecule on the average. The composition is also useful as a sealant, a coating material, a packing, an electric insulation, a corrosionproof, a masking and a surface-protection.

Abstract: A polymer which is prepared by polymerizing at least one polymerizable monomer in the presence of an organic polymer having a reactive silicone group and a polymerizable ethylenically unsaturated group in a molecule, the total number of the silicone group and the unsaturated group being on the average not less than 1.1 and the number of the ethylenically unsaturated group being on the average not less than 0.1 by use of a radical polymerization initiator having a reactive silicone group and/or a chain transfer agent having a reactive silicone group, which is cured with moisture to give a product having improved properties such as tensile properties and weather resistance.

Abstract: A polymer which is prepared by polymerizing at least one ethylenically unsaturated monomer in the presence of an organic polymer having at least one reactive silicone group in a molecule and a compound having at least two independent ethylenically unsaturated functional groups in a molecule by use of a radical polymerization initiator having a reactive silicone group and/or a chain transfer agent having a reactive silicone group, which is cured with moisture to give a product having improved properties such as tensile properties and weather resistance.

Abstract: A speaker comprising a voice coil assembly including a coil formed by pressure-winding an insulation-covered wire on a portion of the outer periphery of a coil bobbin disposed in the gap of a magnetic field, the beginning and the end of the coil being fixed to the coil bobbin by bonding material or adhesive tape, and a diaphragm coupled to the voice coil assembly, whereby the efficiency and performance of the speaker is enhanced.

Abstract: An inboard type magnetic system for an electrodynamic transducer which has a reduced height and magnetic flux leakage by making use of a manganese-aluminum-carbon system alloy magnet anisotropized by warm extrusion.