SHAPED GEL ARTICLES AND SINTERED ARTICLES PREPARED THEREFROM

Shaped gel articles that are formed within a mold cavity and that retain the size and shape of the mold cavity upon removal from the mold cavity, sintered articles prepared from the shaped gel articles, and methods of making the sintered articles are provided. The shaped gel articles are formed from...

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Hauptverfasser: Kolb, Brant U, Pennington, Paul D, Hendrickson, Mark J, Lackey, Melissa A, Humpal, Kathleen M
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creator Kolb, Brant U
Pennington, Paul D
Hendrickson, Mark J
Lackey, Melissa A
Humpal, Kathleen M
description Shaped gel articles that are formed within a mold cavity and that retain the size and shape of the mold cavity upon removal from the mold cavity, sintered articles prepared from the shaped gel articles, and methods of making the sintered articles are provided. The shaped gel articles are formed from a casting sol that contains colloidal silica particles that are treated with a surface modification composition that includes a silane surface modification agent having a radically polymerizable group. The sintered article has a shape identical to the mold cavity (except in regions where the mold cavity was overfilled) and to the shaped gel article but reduced in size proportional to the amount of isotropic shrinkage.
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The shaped gel articles are formed from a casting sol that contains colloidal silica particles that are treated with a surface modification composition that includes a silane surface modification agent having a radically polymerizable group. 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subjects AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOUNDS THEREOF
GENERAL PROCESSES OF COMPOUNDING
INORGANIC CHEMISTRY
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
NON-METALLIC ELEMENTS
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
WORKING-UP
title SHAPED GEL ARTICLES AND SINTERED ARTICLES PREPARED THEREFROM
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