Nanocomposite for thermal insulation
AssigneeInstitut für Neue Materialien gemeinnützige GmbH
InventorsHelmut Schmidt, Martin Mennig, Gerhard Jonschker
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Abstract
The invention relates to a nanocomposite for thermal insulation especially for fireproofing purposes, which can be obtained by combining (A) at least 35 wt. % of nanoscaled, optionally surface-modified particles of an inorganic compound; (B) 10-60 wt. % of a compound with at least two functional groups which can react and/or interact with the surface groups of nanoscaled particles (A), (C) 1-40 wt. % of water and/or an organic solvent which has no functional groups or only one which is defined in (B), wherein the above-mentioned percentages relate to the sum of components (A), (B) and (C), and (D)=0-10 wt. % (based on the nanocomposite) of additives.
Claims25
A process for preparing a nanocomposite, comprising combining:
- (A) at least 35% by weight of nanoscale particles of at least one inorganic compound, the particles having an average particle size of up to 200 nm and having surface groups present on the surface of the particles;
- (B) 10-60% by weight of at least one compound containing at least two functional groups capable of reacting and/or interacting with the surface groups present on the surface of the nanoscale particles of the component (A);
- and
- (C) 10-40% by weight of water and/or at least one organic solvent which has not more than one of the functional groups contained by the component (B);
- the above percentages being percentages of the sum of the components (A), (B), and (C), and
- (D) 0-10% by weight of additives, the percentage being a percentage of the weight of the nanocomposite,
- where the prepared nanocomposite contains at least 10% by weight of component (C), based on the sum of the components (A), (B), and (C).
A transparent glass insulation assembly comprising, sandwiched between two glass planes, a nanocomposite prepared by combining:
- (A) at least 35% by weight of nanoscale particles of at least one inorganic compound, the particles having an average particle size of up to 200 nm and having surface groups present on the surface of the particles;
- (B) 10-60% by weight of at least one compound containing at least two functional groups capable of reacting and/or interacting with the surface groups present on the surface of the nanoscale particles of the component (A);
- and
- (C) 10-40% by weight of water and/or at least one organic solvent which has not more than one of the functional groups contained by the component (B);
- the above percentages being percentages of the sum of the components (A), (B), and (C), and
- (D) 0-10% by weight of additives, the percentage being a percentage of the weight of the nanocomposite,
- where the prepared nanocomposite contains at least 10% by weight of component (C), based on the sum of the components (A), (B), and (C).
A method of fireproofing at least one building component, comprising coating the or each component, or filling the spaces between at least two components, with a nanocomposite prepared by combining:
- (A) at least 35% by weight of nanoscale particles of at least one inorganic compound, the particles having an average particle size of up to 200 nm and having surface groups present on the surface of the particles;
- (B) 10-60% by weight of at least one compound containing at least two functional groups capable of reacting and/or interacting with the surface groups present on the surface of the nanoscale particles of the component (A);
- and
- (C) 10-40% by weight of water and/or at least one organic solvent which has not more than one of the functional groups contained by the component (B);
- the above percentages being percentages of the sum of the components (A), (B), and (C), and
- (D) 0-10% by weight of additives, the percentage being a percentage of the weight of the nanocomposite,
- where the prepared nanocomposite contains at least 10% by weight of component (C), based on the sum of the components (A), (B), and (C).
Dependencies are inferred from the claim text.