1390 results about "Silylene" patented technology

Provided is an organic thin film light emitting element which has achieved all of improved luminous efficiency, improved driving voltage and improved durability life. Specifically provided is a light emitting element which comprises a hole transport layer and an electron transport layer between a positive electrode and a negative electrode and emits light by means of electrical energy. The light emitting element is characterized in that: the hole transport layer of the light emitting element contains a compound represented by general formula (1); the electron transport layer contains a donor compound; and the donor compound is an alkali metal, an inorganic salt containing an alkali metal, a complex of an alkali metal and an organic substance, an alkaline earth metal, an inorganic salt containing an alkaline earth metal, or a complex of an alkaline earth metal and an organic substance. (In the formula, R¹-R²⁰ each represents one group selected from the group consisting of hydrogen, deuterium, an alkyl group, a cycloalkyl group, an amino group, an aryl group, a heterocyclic group, a heteroaryl group, an alkenyl group, a cycloalkenyl group, an alkynyl group, analkoxy group, an alkylthio group, an arylether group, an arylthioether group, a halogen, a cyano group, a —P(═O)R²⁴R²⁵ group and a silyl group; R²⁴ and R²⁵ each represents an aryl group or a heteroaryl group; and these substituents may be further substituted, or adjacent two substituents may combine together to form a ring. Meanwhile, R²¹-R²³ may be the same or different and each represents one group selected from the group consisting of an alkyl group, a cycloalkyl group, an aryl group and a heteroaryl group; and these substituents maybe further substituted.)

A polyurethane based prepolymer is provided and useful in biomedical devices which provides high oxygen permeability and superior physical properties. A hydrogel is produced from a comonomer mixture containing a polysiloxane-containing urethane prepolymer, tris(trimethylsiloxy)-silylpropyl methacrylate and a hydrophilic comonomer. The hydrogel is especially useful for biomedical materials such as contact lenses and implants.

The invention discloses an environment-friendly nano water-based silane treatment agent capable of improving anti-corrosion performance of metal surface. The treatment agent is water-based silane solution which consists of at least one alkoxy silane containing epoxy or at least one alkoxy silane containing amino, at least one disilyl silane, nano-silicon dioxide, rare earth salt type corrosion inhibitor or rare earth salt type and rare earth nano oxide, water, or acetic acid and a small amount of ethanol. The metal material is coated by using the silane solution for impregnation, brushing, spraying or spin-coating, a siloxane layer is formed on the metal surface, then the long-acting corrosion resistance is formed by curing for 3 hours at the temperature of 100 DEG C, and a nano organic silane film which has close bonding force with a coating is formed. Nanoparticles can not only improve the corrosion resistance and enhance the mechanical strength of the silane film in a coating layer, but also realize the synergistic corrosion resistance with the corrosion inhibitor. The technology has the advantages of simple process, greenness, environmental protection and strong practicality.

A polysiloxane composition having high transparency, while being excellent in heat resistance and light resistance is provided.

A polysiloxane composition is composed of (A) a polysiloxane which is a polysiloxane compound having a polyhedral skeleton having 6 to 24 silicon atoms in its molecule and which has at least one group containing a hydrolyzable silyl group bonded to a Si atom constituting the polyhedral skeleton, and (B) a photoacid generator. The hydrolyzable silyl group is preferably an alkoxysilyl group.

The present invention has its object to provide a curable composition which comprises a guanidine compound as a non-organotin type catalyst, is less discolored, has good surface curability, depth curability, strength rise and adhesiveness, and can retain the curability even after storage; the above object can be achieved by a curable composition which comprises: (A) an organic polymer containing a silyl group capable of crosslinking under siloxane bond formation, the silyl group being a group represented by the general formula (1): —SiX₃ (1) (wherein X represents a hydroxyl group or a hydrolyzable group and the three X groups may be mutually the same or different), (B) a guanidine compound (B-1) as a silanol condensation catalyst, and (C) a plasticizer, wherein the content of the component (B-1) is not lower than 0.1 part by weight but lower than 8 parts by weight per 100 parts by weight of the component (A), and a non-phthalate ester plasticizer accounts for 80 to 100% by weight of the (C) component plasticizer.

A conjugated diene polymer is provided that comprises a conjugated diene-based constituent unit and a constituent unit of formula (I) below, at least one terminus of the polymer being modified by a compound of formula (II):

wherein X¹, X², and X³ independently denote a group of formula (Ia) below, a hydroxy group, a hydrocarbyl group, or a substituted hydrocarbyl group, and at least one of X¹, X², and X³ is a group of formula (Ia) below or a hydroxy group,

wherein R¹ and R² independently denote a hydrocarbyl group having 1 to 6 carbon atoms, a substituted hydrocarbyl group having 1 to 6 carbon atoms, a silyl group, or a substituted silyl group, and R¹ and R² may be bonded so as to form, together with the nitrogen atom, a ring structure,

wherein n denotes an integer of 1 to 10, R³, R⁴, and R⁵ independently denote a hydrocarbyl group having 1 to 4 carbon atoms or a hydrocarbyloxy group having 1 to 4 carbon atoms, at least one of R³, R⁴, and R⁵ is a hydrocarbyloxy group, and A denotes a nitrogen atom-containing functional group.

A method of forming a dielectric layer is described. The method deposits a silicon-containing film by chemical vapor deposition using a local plasma. The silicon-containing film is flowable during deposition at low substrate temperature. A silicon precursor (e.g. a silylamine, higher order silane or halogenated silane) is delivered to the substrate processing region and excited in a local plasma. A second plasma vapor or gas is combined with the silicon precursor in the substrate processing region and may include ammonia, nitrogen (N₂), argon, hydrogen (H₂) and/or oxygen (O₂). The equipment configurations disclosed herein in combination with these vapor/gas combinations have been found to result in flowable deposition at substrate temperatures below or about 200° C. when a local plasma is excited using relatively low power.

The present invention provides a curable polysiloxane composition which is excellent in light resistance (particularly ultraviolet resistance) and adhesion and has a sufficient heat resistance/hydrothermal resistance and film-forming property and which generates little foaming at curing and does not generate cracks, peeling, coloring, and foaming even when used for a long period of time. A curable polysiloxane composition which comprises a specific hydrosilyl group-containing polysiloxane compound, a specific polysiloxane compound comprising two or more silanol groups in one molecule, and a dehydrogenative condensation reaction catalyst.

Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, contact lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based silyl monomers or the copolymerization of one or more aromatic-based silyl monomers with one or more aromatic or non-aromatic non-siloxy-based monomers, hydrophobic monomers or hydrophilic monomers.

The present invention relates to a method of treating a metal substrate to provide permanent corrosion resistance. The method comprises applying a solution containing one or more vinyl silanes in admixture with one or more multi-silyl-functional silanes to a metal substrate in order to form a coating. The method is particularly suitable for use on zinc coated surfaces.

A silane composition for preparing a semiconductor thin films of a solar cell is disclosed. The silane composition contains a polysilane compound represented by the formula Si_nR_m (n is an integer of 3 or more, m is an integer of n to (2n+2) and an m number of R's are each independently a hydrogen atom, alkyl group, phenyl group or halogen atom, with the proviso that when all the m number of R's are hydrogen atoms and m=2n, n is an integer of 7 or more), and at least one silane compound selected from cyclopentasilane, cyclohexasilane and silylcyclopentasilane.

A combination for surface treating powder, composed of (I)organopolysiloxane or condensate thereof and (II)organopolysiloxane in a weight ratio of (I):(II) of from 95:5 to 5:95; (I)organopolysiloxane or condensate thereof and (III) acryl/silicone copolymer in a weight ratio of (I):(III) of from 95:5 to 5:95; or (I)organopolysiloxane or condensate thereof, (II)organopolysiloxane and (III) acryl/silicone copolymer in a weight ratio of (I):[(II)+(III)] of from 95:5 to 5:95, provided that each of (I), (II), and (III) may be packed together or separately, wherein (I)organopolysiloxane is represented by the following formula (1),

R¹_a(OR²)_bSiO_(4-a-b)/2  (1)

wherein R¹ may be the same with or different from each other and is a C_1-30 alkyl, aryl, aralkyl, fluorinated alkyl or amino-substituted alkyl group,

• R² is a C_1-6 alkyl group, a is the number of from 0.75 to 1.5, and b is the number of from 0.2 to 3, provided that a sum of a and b is greater than 0.9 and at most 4; (II)organopolysiloxane is represented by the formula (2)

R³_cR⁴_dR⁵_eSiO_(4-c-d-e)/2  (2)

wherein R³may be the same with or different from each other and is a C_1-30 alkyl, aryl, aralkyl, or fluorinated alkyl group,

R⁴ is a hydrogen atom, a hydroxyl group or a C_1-6 alkoxy group and is bonded to the Si atom in the formula (2) via a group comprising carbon, oxygen, or silicon atom, and

R⁵ is a silicone compound residue represented by the following formula

wherein R3 is as defined above, c is the number of from 1.0 to 2.5, d is the number of from 0.001 to 1.5, and e is the number of from 0 to 1.5, x is an integer of from 1 to 5, and y is an integer of from 0 to 500; and (III) acryl/silicone copolymer has at least one hydrolyzable silyl group.