摘要:
The present invention relates to a latex with modified surface chemistry, which may be obtained by carrying out a free-radical emulsion polymerization in the presence of at least one ethylenically unsaturated monomer or at least one polymer containing residual ethylenically unsaturated bonds, of at least one free-radical polymerization initiator, of at least one water-soluble and/or water-dispersible monoblock, diblock or triblock polymer comprising at its end an active group capable of forming a radical, chosen from dithioesters, xanthates, thioether-thiones and diothiocarbamates. The invention similarly relates to redispersible powders that may be obtained by drying the said latices.
摘要:
The Invention concerns a latex with modified surface properties obtainable by a method which consists in adding a water soluble amphiphilic copolymer in a aqueous dispersion of a water-insoluble polymer obtained from ethylenically unsaturated monomers.
摘要:
The present invention concerns the use, in the surface treatment of waterproofed wood, of an aqueous dispersion comprising at least one latex obtained by emulsion polymerization of a mixture of monomers comprising at least one acrylic monomer B comprising at least one ureido function.
摘要:
An aqueous fluid useful for the recovery of crude oil from a subterranean formation, which includes a composition including a mixture of water, a water soluble block copolymer, an inorganic salt and at least one member of the group of a nonionic surfactant having an HLB of less than 12, and methods for using same.
摘要:
An adsorption method includes the step of adsorbing hybrid particles from a colloidal dispersion of such particles at an interface between the dispersion and a second phase, said hybrid particles comprising: (a) a nanoscale inorganic core having an outer surface, and (b) an organic layer disposed on at least a portion of the surface of the inorganic core and comprising one or more phosphonates according to structure (I): wherein: R1 and R2 are each independently H, or a (C1-C20)hydrocarbon group, R3 is a divalent (C1-C20)hydrocarbon group, R4 and R5 are each independently H or (C1-C2)alkyl, provided that R4 differs from R5, R6 is H or a (C1-C30)hydrocarbon group, m and n are each independently integers of from 0 to about 200, provided that the sum of m+n is at least 1.
摘要:
A hydrophilized article includes (a) a substrate having a hydrophobic surface, and (b) a hydrophilizing layer disposed on at least a portion of the hydrophobic surface of the substrate. said layer comprising an organophosphorus material or a vinyl alcohol material, or a mixture of an organophosphorus material and a vinyl alcohol material.
摘要:
The invention relates to process for the treatment of a hydrophobic surface by a liquid film comprising an aqueous phase comprising the coating of said surface by the liquid whose aqueous phase comprises an effective amount of an agent of modification of the properties of surface and an active agent.
摘要:
Disclosed are methods and systems for transferring dry or semi-dry nanoparticles onto a substrate. In one embodiment, this includes the steps of providing a roller comprising an elastomeric stamp; transferring nanoparticles in a dry or semi-dry state, and which contact the surface of a donor substrate, from the donor substrate onto the elastomeric stamp; and depositing the dry or semi-dry nanoparticles from the elastomeric stamp onto a receiver substrate by rolling the elastomeric stamp onto the receiver substrate. The substrate, in other embodiments, can have a relief structure.
摘要:
Compositions comprising a silyl-containing copolymer of a monomer system comprising: (A) a silyl-containing monomer having a structural formula (A) Wherein n=1-20, o=1-5 R=O or NH R′=H or CH3 R″=C1-C12 alkyl wherein m=1-20; (B) a neutral, hydrophilic, ethylenically unsaturated monomer; and (C) a cationic ethylenically unsaturated monomer are disclosed. Aqueous solutions of the silyl-containing copolymer form transparent coatings on substrates which have very high contact angles with aqueous solutions and receive aqueous ink with very low bleeding. Substrates coated with the copolymer, methods for printing images, and methods of forming a portion or all of an electronic feature, are also disclosed.
摘要:
The invention concerns a method for enhancing water-repellency repellency treatment of mineral hydraulic binder compositions and compositions obtainable by said method and their uses in the building sector, said method comprising the step of adding a sufficient amount of at least one monovalent cation salt of a carboxylic acid to said composition.