13-12-2018 дата публикации
Номер: US20180354864A1
The present invention relates to the field of foam formation and stabilization, particularly foamed construction materials, such as cement. Disclosed are additives suitable to obtain mineral foams when added to the corresponding starting materials. The invention provides a ready-to-use product in the form of a solid particulate composition comprising hydrophobized particles () and catalytically active particles () as defined in claim . The invention further provides for manufacturing methods of such ready-to-use product. 112. A solid particulate composition comprising a first group of particles () and a second group of particles () , whereby{'b': '1', 'claim-text': [{'b': 1', '1, 'are selected from the group consisting of Oxides, Hydroxides, Carbides, Nitrides, Phosphates, Carbonates, and Silicates (.), and'}, {'b': 1', '2, "where the particle's surface is modified with amphiphilic molecules (.) that comprise at least one head group and one tail group,"}, 'said tail group being selected from an aliphatic or an aromatic or a cyclic group with 2 to 8 carbon atoms and optionally one or more substituents, and', 'said head group being selected from phosphates, phosphonates, sulfates, sulfonates, alcohols, amines, amides, pyrrolidones, gallates, and carboxylic acids; and, 'said first group of particles ()'}{'b': '2', 'claim-text': are catalytically active particles adapted to react with a blowing agent to form a gas,', {'sub': 2', '4', '2', '5, 'are selected from the group consisting of iron containing compounds, chromates, oxides, silicates, Ca(OCl), KI, KMnO, catalase, and PO;'}], 'said second group of particles ()'}the amount of (1) is in the range of 20.0-99.8% and/or the amount of (2) is in the range of 0.2-80%; and{'b': 1', '2', '1', '1', '1', '2', '1', '1, 'sup': '2', 'the amount of amphiphilic molecules (.) on the particles (.) is in the range of 0.5-160 μmol (.)/mparticle (.).'}2. The composition of beingin the form of a powder; orin the form of a granulated ...
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