Abstract: The invention relates to an aqueous dispersion of polymer, based on structured polymer particles, said particles comprising a core polymer phase, based on a polymer P1 with Tg1 ranging from 60 to 120° C., a second polymer phase enveloping said core, based on a polymer P2 with a Tg2 ranging from ?60 to 40° C. and a third outer polymer phase (or shell) based on a polymer P3, with a Tg3 ranging from Tg2?5° C. to Tg2+5° C. and having an Mn not exceeding 150 000, with the weight contents of said polymers P1, P2 and P3 being, relative to the total weight of polymer (P1+P2+P3): P1 from 5% to 60%, P2 from 40% to 85%, P3 from 5% to 25% with the sum of said weight contents being 100%.

Abstract: The invention relates to a crosslinkable or non-crosslinkable aqueous dispersion of polymer, based on structured polymer particles, said particle comprising a core polymer phase, based on a polymer P1 with Tg1 ranging from 60 to 120° C., a second polymer phase enveloping said core, based on a polymer P2 with a Tg2 ranging from ?60 to 40° C. and a third outer polymer phase (or shell) based on a polymer P3, with a Tg3 greater than Tg2 not exceeding 120° C. and having a measured Mn of from 1000 to 150 000, with the weight contents of said polymers P1, P2 and P3 being relative to the total weight of polymer (P1+P2+P3): P1 from 5% to 60%, P2 from 40% to 85%, P3 from 5% to 25% with the sum of said weight contents being 100%.

Abstract: Firstly, the invention concerns an organic resin that comprises structural units in its overall composition obtained from: a) at least one ethylenically unsaturated monomer carrying a cyclic carbonate group, b) at least one ethylenically unsaturated monomer carrying at least one carboxylic acid group, c) at least one ethylenically unsaturated monomer with a hydrophobic nature having a hydrophobic value, estimated by the logarithm of the partition coefficient between octanol and water, of at least 3, d) optionally, at least one other ethylenically unsaturated monomer that is different from said monomers a), b) or c) and does not carry any group that is susceptible of reacting with a carbonate group or carboxylic acid group, but also no group that is susceptible of reacting with a functional group of another monomeric component of said resin, all cross-linking reactions in the preparation of said resin being excluded, overall, said resin having: an acid value of at least 10 mg KOH/g with respect to the dry re

Abstract: The present invention relates to the use of a polymer from the polymerization of 2-octyl acrylate of renewable origin and optionally at least one other monomer, as a binding agent in or for the production of a coating composition.

Abstract: The invention relates to a crosslinkable or non-crosslinkable aqueous dispersion of polymer, based on structured polymer particles, said particle comprising a core polymer phase, based on a polymer P1 with Tg1 ranging from 60 to 120° C., a second polymer phase enveloping said core, based on a polymer P2 with a Tg2 ranging from ?60 to 40° C. and a third outer polymer phase (or shell based on a polymer P3, with a Tg3 greater than Tg2 not exceeding 120° C. and having a measured Mn of from 1000 to 150 000, with the weight contents of said polymers P1, P2 and P3 being relative to the total weight of polymer (P1+P2+P3): P1 from 5% to 60%, P2 from 40% to 85%, P3 from 5% to 25% with the sum of said weight contents being 100%.

Abstract: The invention relates to an aqueous dispersion of polymer, based on structured polymer particles, said particles comprising a core polymer phase, based on a polymer P1 with Tg1 ranging from 60 to 120° C., a second polymer phase enveloping said core, based on a polymer P2 with a Tg2 ranging from ?60 to 40° C. and a third outer polymer phase (or shell) based on a polymer P3, with a Tg3 ranging from Tg2?5° C. to Tg2+5° C. and having an Mn not exceeding 150 000, with the weight contents of said polymers P1, P2 and P3 being, relative to the total weight of polymer (P1+P2+P3): P1 from 5% to 60%, P2 from 40% to 85%, P3 from 5% to 25% with the sum of said weight contents being 100%.

Abstract: The present invention relates to the use of a polymer from the polymerization of 2-octyl acrylate of renewable origin and optionally at least one other monomer, as a binding agent in or for the production of a coating composition.

Abstract: Firstly, the invention concerns an organic resin that comprises structural units in its overall composition obtained from: a) at least one ethylenically unsaturated monomer carrying a cyclic carbonate group, b) at least one ethylenically unsaturated monomer carrying at least one carboxylic acid group, c) at least one ethylenically unsaturated monomer with a hydrophobic nature having a hydrophobic value, estimated by the logarithm of the partition coefficient between octanol and water, of at least 3, d) optionally, at least one other ethylenically unsaturated monomer that is different from said monomers a), b) or c) and does not carry any group that is susceptible of reacting with a carbonate group or carboxylic acid group, but also no group that is susceptible of reacting with a functional group of another monomeric component of said resin, all cross-linking reactions in the preparation of said resin being excluded, overall, said resin having: an acid value of at least 10 mg KOH/g with respect to the dry re

Abstract: The present invention relates to an aqueous polymer dispersion, which includes hard/soft Shell structured particles, with the polymer phase of the core P1 having a glass transition temperature Tg1 from 60 to 120° C., the polymer phase of the shell P2 having a glass transition temperature Tg2 from ?20 to 40° C., the minimum film-formation temperature MFFT being from 0 to 50° C., with the phase P1 representing from 1.5 to 60% by weight, with respect to the total weight of P1+P2, the phase P1 including at least one monomer M1 having at least two copolymerizable ethylenic unsaturations and at least one ethylenically unsaturated monomer M2 having at least one carboxylic acid and/or anhydride functional group, the phase P2 being from 40 to 85% by weight of the total weight of P1+P2 and with said phase P2 including: at least one monomer M3 selected from the monomers having, in addition to the polymerizable ethylenic unsaturation, at least one group selected from acetoacetoxy, diacetone, methylol or alkoxysilane.

Abstract: The invention relates to an aqueous polymer dispersion which can be obtained from a mixture of monomers comprising, in parts by weight: a) 100 of at least one ethylenically unsaturated monomer not comprising an ionic group, b) 0.5 to 15 of at least one ethylenically unsaturated monomer carrying at least one carboxyl and/or carboxylic anhydride functional group, c) at least one ethylenically unsaturated monomer carrying at least one second functionality selected from: phosphate, phosphonate or phosphinate, in an amount such that the ratio c/(b+c) varies from 0.05 to 0.

Abstract: The invention relates to an aqueous polymer dispersion which can be obtained from a mixture of monomers comprising, in parts by weight: a) 100 of at least one ethylenically unsaturated monomer not comprising an ionic group, b) 0.5 to 15 of at least one ethylenically unsaturated monomer carrying at least one carboxyl and/or carboxylic anhydride functional group, c) at least one ethylenically unsaturated monomer carrying at least one second functionality selected from: phosphate, phosphonate or phosphinate, in an amount such that the ratio c/(b+c) varies from 0.05 to 0.

Abstract: A process is presented for the preparation of a latex by the emulsion polymerization at a temperature of between 30 and 90 C. of at least one ethylenically unsaturated monomer in the presence of at least one surfactant and of a seed of polymer particles with a diameter of between 200 and 450 nm. The seed particles represent from 5-25% by weight of the total weight of the monomer and seed. The polymerization is initiated by a mixed water-soluble/fat-soluble system. Also included are lattices obtained from this process.

Abstract: The invention concerns a method for obtaining an aqueous dispersion of hydrophobic polymers dispersed in the form of particles with mean diameter less than 100 nm stablized soley with a macromolecular surfactant based on low molecular weight styrene/maleic anhydride imide copolymer. The invention also concerns the use of said dispersion for treating and sizing paper.

Abstract: A process is presented for the preparation of a latex by the emulsion polymerization at a temperature of between 30 and 90 C. of at least one ethylenically unsaturated monomer in the presence of at least one surfactant and of a seed of polymer particles with a diameter of between 200 and 450 nm. The seed particles represent from 5-25% by weight of the total weight of the monomer and seed. The polymerization is initiated by a mixed water-soluble/fat-soluble system. Also included are lattices obtained from this process.

Abstract: The invention concerns the use in a treating composition for reinforcing porous substrates, of a latex based on polymer particles with diameter ranging between 50 and 200 nm having a proportion of solids ranging between 20 to 60 wt. % and containing acid functions.

Abstract: The invention describes the use in a formulation for floor adhesives of an aqueous dispersion containing from 5 to 70% by weight of at least one polymer having a glass transition temperature below 0° C. and carrying a ureido functional group.

Abstract: The invention concerns a latex consisting of polymers dispersed in a bimodal distribution, having a non-volatile matter content at 55 % and low viscosity. Said latex is obtained by emulsion polymerisation of at least a monomer in the presence of a seed of polymer-based particles with a diameter ranging between 200 and 450 nm. The invention also concerns the use of said latex in various applications such as pressure sensitive adhesives, floor bonding adhesives, tile bonding adhesives, additives for mortar, sealants, sealing joints.

Abstract: The invention relates to a process for the treatment of paper consisting of the application to the paper either of a cationic resin, PAE, and of a latex containing acid functional groups, the resin and the latex being applied simultaneously but separately, or of a stable mixture prepared beforehand containing the PAE and a latex stabilized by a nonionic surfactant.

Abstract: Such latex-dispersions used in paper bonding formulations make it possible to obtain acceptable COBB values, even with printing and writing papers or wrapping papers obtained from recycled or de-inked mechanical pulps.

Abstract: Compositions comprising at least one fluorinated polymer comprising vinylidene fluoride units and at least one nitrile rubber exhibit good mechanical and thermomechanical properties as well as good chemical resistance, in particular good impermeability to hydrocarbons. These compositions are beneficially used in the manufacture of components having at least two layers such as films, pipes, tubes or laminates.