摘要:
The invention relates to a novel copolymer containing vinyl-pyrrolidone units. The copolymer further includes units of the betaine type. The invention further relates to the use of the copolymer in compositions for drying dishes, said polymer particularly improving the drying thereof.
摘要:
A cellular structure thermal insulation material includes by weight as compared to the material total weight: from 4 to 96% of a hydraulic binder, which prior to being contacted with water, includes at least one phase selected from C3A, CA, C12A7, C11A7CaF2, C4A3$ (Yee lemite), C2A(1-x)Fx (where x belongs to [0, 1]), hydraulic amorphous phases having a C/A molar ratio ranging from 0.3 to 15 and such that cumulated amounts of Al2O3 of these phases be ranging from 3 to 70% by weight of the hydraulic binder total weight, from 4 to 96% of at least one filler, the material having a pore volume ranging from 70% to 95%. The use of a mineral foam for making thermal insulation material as well as methods for making the mineral foam are also described.
摘要:
A cellular structure thermal insulation material includes by weight as compared to the material total weight: from 4 to 96% of a hydraulic binder, which prior to being contacted with water, includes at least one phase selected from C3A, CA, C12A7, C11A7CaF2, C4A3$ (Yee lemite), C2A(1-x)Fx (where x belongs to [0, 1]), hydraulic amorphous phases having a C/A molar ratio ranging from 0.3 to 15 and such that cumulated amounts of Al2O3 of these phases be ranging from 3 to 70% by weight of the hydraulic binder total weight, from 4 to 96% of at least one filler, the material having a pore volume ranging from 70% to 95%. The use of a mineral foam for making thermal insulation material as well as methods for making the mineral foam are also described.
摘要:
The invention relates to a treatment that can be used to remove a coating and/or stain from a construction material, such as anti-graffiti treatment. The inventive treatment uses a beta-dicarbonyl product.
摘要:
The invention relates to the use of a betaine as a foaming agent and a foam drainage reducing agent. The invention also relates to the use of betaine in processes involving foam.
摘要:
The present invention relates to an aqueous suspension comprising: A) silica and/or alumina particles, and B) a compound of overall formula (I): Al(OH)a(SO4)b(SiOx)c(Y)d (I) with: a between 0.1 and 2, b between 0.3 and 1.5, c between 0 and 0.1, d greater than 0.05, Y chosen from alkali metals and alkaline earth metals, x between 2 and 4, and its derivatives, the said compound (B) being present in the suspension at a concentration of at least 1.65 mol/l, expressed as moles of aluminium issued from the said compound. Another subject-matter of the invention is a process useful for the preparation of the said suspension and its use in the field of cement pastes, mortars and concretes and in particular as setting and hardening accelerating agent for cements.
摘要:
Cementation slurries well suited for encasing reinforcing elements therefor, for example prestressed steel cable, while reducing the risk of embrittlement thereof, contain from about 1.5% to 3% by weight of homogenizing and exudation-reducing hydrophilic particulates (e.g., precipitated silica particles) that are inert in respect of liquids, have a specific surface area of greater than about 200 m.sup.2 /g and which are fragmentable during mixing and/or injection into multiple fragments having particle sizes ranging from about 5 to 300 nanometers.
摘要:
Detergent composition that generate foams in aqueous media, which foams have improved rheology and appearance (whiteness), contain at least one surfactant (S) selected from the group consisting of anionic and nonionic surfactants and mixtures thereof, and at least one C8-C22 aliphatic alcohol (AA).
摘要:
Emulsion (E) comprising a hydrophobic phase (O) containing and/or consisting of a hydrophobic active material (A), which is in the form of a multiple emulsion (Em) comprising: an inner inverse emulsion (Ei) comprising the continuous phase (O), a dispersed aqueous phase (Wi) and, at the interface of the two phases, a stabilizer (Di) as a water-soluble or water-dispersible polysaccharide with a mean degree of polymerization of at least 1.5 and preferably of at least 20, the Brookfield viscosity of which, at 25° C. as a 1% solution in water, is less than 20 000 mPa·s, and free of lipophilic polyorganosiloxane substituting groups, and an aqueous or water-miscible outer phase (We), in which is dispersed the inner emulsion (Ei), or in a solid form (Es), which is water-dispersible as a multiple emulsion (Em); the emulsion (E), after being used in an aqueous medium (B), can convey the hydrophobic active material to a substrate present in or in contact with said aqueous medium (B).
摘要:
The invention concerns a novel photosensitive composition for photoresist and a system comprising a substrate and a photoresist obtained from said novel composition. The photosensitive composition for photoresist comprises a copolymer with hydrophobic blocks whereof at least one block is an hydrophobic block capable of generating a hydrophilic block and comprising at its end a group selected among dithioesters, thioesters-thiones, dithiocarbamates and xanthates, and a photoactive compound capable of generating under the effect of a radiation an active species reacting with the hydrophobic block to generate the hydrophilic block.