Abstract: When an optically anisotropic material is manufactured, an optically anisotropic liquid crystal layer with good adhesion properties and without irregular alignment is formed on a substrate. The optically anisotropic material having the optically anisotropic liquid crystal layer formed on the substrate can be manufactured by subjecting the surface of the substrate to rubbing treatment, subjecting the rubbing-treated surface to surface treatment with the hydrolysate of an alkoxysilane compound, applying a polymerizable nematic liquid crystal composition to the surface-treated surface, subjecting the applied polymerizable liquid crystal composition to alignment treatment, and subjecting the polymerizable liquid crystal composition to curing treatment while the alignment state thereof is maintained, whereby the optically anisotropic liquid crystal layer is formed.

Abstract: A simple technique for introducing a hybrid alignment or a homeotropic (vertical) alignment into liquid crystal films, which, by their nature, tend to have a horizontal alignment of liquid crystal molecules. The technique does not require special alignment films. A liquid crystal composition for forming a liquid crystal film contains a polymerizable liquid crystal compound and a hydrolysate of an alkoxysilane compound. The hydrolysate of the alkoxysilane compound contains a siloxane oligomer of which degree of polymerization is from 2 to 25. Furthermore, the alkoxysilane compound is a trialkoxysilane compound having a functional group. This liquid crystal film composition can be produced by hydrolyzing an alkoxysilane compound to obtain a hydrolysate and then uniformly mixing the hydrolysate with a polymerizable liquid crystal compound.

Abstract: A simple technique for introducing a hybrid alignment or a homeotropic (vertical) alignment into liquid crystal films, which, by their nature, tend to have a horizontal alignment of liquid crystal molecules. The technique does not require special alignment films. A liquid crystal composition for forming a liquid crystal film contains a polymerizable liquid crystal compound and a hydrolysate of an alkoxysilane compound. The hydrolysate of the alkoxysilane compound contains a siloxane oligomer of which degree of polymerization is from 2 to 25. Furthermore, the alkoxysilane compound is a trialkoxysilane compound having a functional group. This liquid crystal film composition can be produced by hydrolyzing an alkoxysilane compound to obtain a hydrolysate and then uniformly mixing the hydrolysate with a polymerizable liquid crystal compound.

Abstract: What is disclosed are thermosetting epoxy resin compositions containing block siloxane copolymers which are used to induce low internal stress in the cured compositions and to provide coefficients of thermal expansion more closely aligned with the coefficients of thermal expansion of the substrates being molded therewith.

Abstract: Provided is a method for preparing a spherical cured product having a diameter of 5 mm or less of a polymer or a polymer composition containing at least 10 wt % of the linear organopolysiloxane blocks represented by the following general formula (1), characterized by curing in an atomized state a curable polymer or a curable polymer composition containing at least 10 wt % of the linear organopolysiloxane blocks represented by the following general formula (1):--R.sub.2 SiO].sub.n (1)wherein R's are the same or different monovalent hydrocarbon groups and n is an integer of 5 or more.

Abstract: Integral silicone molded products comprising a unitary structure of a substrate with different phases is made by coating a substrate with a mixture of an alkenyl containing polyorganosiloxane, a polyorganohydrogensiloxane, and an addition-reaction catalyst where at least one component is applied to the substrate and then additional components are applied and diffuse to result in a coating with a polyorganosiloxane phase whose degree of crosslinking is low and a polyorganosiloxane phase whose degree of crosslinking is high and the phase having the low degree of crosslinking is next to the substrate. Such molded products are coated hybrid IC transistors, solar battery modules, and optical fibers.

Abstract: What is disclosed is an improved heat curable molding composition which has increased flowability in the mold. The improvement is gained by the use of a fine, spherical noncrystalline filler along with the normal molding compound fillers.

Abstract: What is disclosed are room temperature curable silicone resins which have solvent, heat and weather resistance, mold release properties and water repellency in their cured state. Silicone resins are treated with alkoxylated siloxanes, alkoxysilanes and aminoalkoxysilanes to give these properties.

Abstract: An improved thermosetting silicone resin molding composition characterized by consisting essentially of 100 parts by weight of organopolysiloxane resin having organic radical: Si ratio of 1.0:1 to 1.7:1 and containing at least 0.2% by weight of silicon-bonded hydroxyl groups, organohydrogenpolysiloxane containing at least one silicon bonded hydrogen atom in each molecule thereof, said organohydrogenpolysiloxane being in such an amount that the number of the hydrogen atoms per hydroxyl group in said organopolysiloxane is between 0.001 and 0.30, 0.01 to 15 parts by weight of organotin oxide, and 50 to 700 parts by weight of an inorganic filler.

Abstract: A method for obtaining water-soluble, silicone-modified alkyd resins is disclosed which allows reproducibility of the resin without the undesirable gelling reaction normally associated with such similar processes.

Abstract: What is disclosed are thermosetting epoxy resin compositions containing block siloxane copolymers which are used to induce low internal stress in the cured compositions and to provide coefficients of thermal expansion more closely aligned with the coefficients of thermal expansion of the substrates being molded therewith.