Patent classifications
C01B33/157
AEROGEL BLANKET MANUFACTURING METHOD AND AEROGEL BLANKET THEREBY
Disclosed are an aerogel blanket production method and an aerogel blanket produced thereby, the aerogel blanket production method including steps of: preparing a blanket; preparing a liquid raw material for aerogel formation with which the blanket is to be impregnated; impregnating the blanket with the liquid raw material; and gelling the impregnated liquid raw material to form aerogel, wherein a step of performing pre-processing on the blanket before the gelling of the liquid raw material is completed. The step of performing pre-processing may be performed after the step of preparing the blanket but before impregnating with the liquid raw material, or may be performed when the impregnated liquid raw material is in a flowable semi-liquid state before the liquid raw material is not completely converted into aerogel.
Method for producing silica aerogel and silica aerogel produced thereby
The present invention relates to a method for producing a silica aerogel and a silica aerogel produced thereby. The present invention provides a two-step process of a nucleation step of forming silica colloid particles by using a low-concentration silica precursor and a growth step of further adding a relatively high-concentration silica precursor to form a silica wet gel by using the silica colloid particles as a seed. Thus, the present invention provides a method for producing a silica aerogel of which mechanical stability is improved to enhance pore characteristics, and physical properties are readily controllable, and also provides a silica aerogel produced thereby.
Method for producing silica aerogel and silica aerogel produced thereby
The present invention relates to a method for producing a silica aerogel and a silica aerogel produced thereby. The present invention provides a two-step process of a nucleation step of forming silica colloid particles by using a low-concentration silica precursor and a growth step of further adding a relatively high-concentration silica precursor to form a silica wet gel by using the silica colloid particles as a seed. Thus, the present invention provides a method for producing a silica aerogel of which mechanical stability is improved to enhance pore characteristics, and physical properties are readily controllable, and also provides a silica aerogel produced thereby.
POROUS INORGANIC CARRIER AND METHOD FOR PRODUCING NUCLEIC ACID USING SAME
An inorganic porous carrier including a linker of formula (1), wherein a mode diameter in a pore distribution is 0.04 μm to 1 μm, and a predetermined cumulative pore volume ratio is 30% or less [a bond * represents a linkage to the oxygen atom of a silanol group in an inorganic porous substance; n is an integer; R represents independently of each other an alkyl group containing 3 to 10 carbon atoms which may optionally have a substituent such as an alkoxy group; and L represents a single bond; an alkylene group of 1 to 20 carbon atoms; or an alkylene group containing 2 to 20 carbon atoms which contains —CH.sub.2-Q-CH.sub.2— group wherein any group Q selected from a group consisting of —O— etc. is inserted into at least one of —CH.sub.2—CH.sub.2— group constituting the alkylene group]; and a method for preparing a nucleic acid using the same.
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METHOD FOR PRODUCING A HEAT INSULATING MATERIAL COMPOSED OF A HYDROPHOBIC AEROGEL AND THE APPLICATION THEREOF
The invention provides a method for producing a heat insulating material composed of a hydrophobic aerogel, and the method includes the steps of: (1) mixing step; (2) hydrolysis step; (3) condensation step; (4) aging step; and (5) drying step. In the method, a siloxane compound, an inorganic gel, and a halogen-free surfactant are mixed and then a sol-gel process is performed to produce the aerogel heat-insulating material without water-washing. The produced heat-insulating material has preferable strength, smooth appearance, and low shrinkage and can overcome the powder-dropping problem. By the provided method, an aerogel heat-insulating board can be produced, or an aerogel cold-resisting and heat-insulating blanket can be produced by mixing with a fiber or a foam material.
Peptide-based synthetic molecules and silica nanostructures
Described herein are novel synthetic molecules, polymers, and compositions comprising silica-binding peptides, and their methods of production. Also described herein are methods of synthesizing structurally and chemically complex silica-based materials using the synthetic molecules, polymers, and compositions.
Peptide-based synthetic molecules and silica nanostructures
Described herein are novel synthetic molecules, polymers, and compositions comprising silica-binding peptides, and their methods of production. Also described herein are methods of synthesizing structurally and chemically complex silica-based materials using the synthetic molecules, polymers, and compositions.
METHOD FOR PRODUCING SILICA AEROGEL AND SILICA AEROGEL PRODUCED THEREBY
Provided is a silica aerogel with enhanced physical properties. The silica aerogel can have a tap density of 0.030 to 0.070 g/mL, and a carbon content of 11.2 to 12.1 wt %.
METHOD FOR PRODUCING SILICA AEROGEL AND SILICA AEROGEL PRODUCED THEREBY
Provided is a silica aerogel with enhanced physical properties. The silica aerogel can have a tap density of 0.030 to 0.070 g/mL, and a carbon content of 11.2 to 12.1 wt %.
SURFACE-MODIFIED AND METAL-DOPED POROUS SILICA
An object of the present invention is to provide a metal-doped porous silica that can be blended into an article, for example, a cosmetic product such as a perm treatment agent, and kept stably dispersed therein. The metal-doped porous silica of the present invention as a means for resolution is surface-modified with a vinylpyrrolidone unit-containing polymer. As specific examples of vinylpyrrolidone unit-containing polymers, a copolymer of vinylpyrrolidone and dimethylaminoethyl methacrylate, polyvinylpyrrolidone, and the like can be mentioned.