Abstract: The present invention relates to an alkyd resin as well as to a method for preparing such a resin, said alkyd resin resulting from the polycondensation: of at least one polyacid, preferably biosourced, or its acid anhydride preferably biosourced, of at least one component based on oil, preferably biosourced, or its corresponding fatty acid, preferably biosourced, of at least one polyol, preferably biosourced, having at least two hydroxyl groups, selected from polyols comprising at least one 1,4:3,6-dianhydrohexitol unit, of rosin or of at least one of its derivatives, wherein at least one polyacid is succinic acid, preferably biosourced, or its anhydride, preferably biosourced; and wherein the percentage by dry weight of rosin or its derivatives based on the total dry weight of succinic acid and of its anhydride and of rosin or its derivatives is comprised between about 10% and about 80%.

Abstract: The present invention relates to an alkyd resin as well as to a method for preparing such a resin, said alkyd resin resulting from the polycondensation: of at least one polyacid, preferably biosourced, or its acid anhydride preferably biosourced, of at least one component based on oil, preferably biosourced, or its corresponding fatty acid, preferably biosourced, of at least one polyol, preferably biosourced, having at least two hydroxyl groups, selected from polyols comprising at least one 1,4:3,6-dianhydrohexitol unit, of rosin or of at least one of its derivatives, wherein at least one polyacid is succinic acid, preferably biosourced, or its anhydride, preferably biosourced; and wherein the percentage by dry weight of rosin or its derivatives based on the total dry weight of succinic acid and of its anhydride and of rosin or its derivatives is comprised between about 10% and about 80%.

Abstract: The object of a present invention is an alkyd resin as well as the method for preparing such a resin, said alkyd resin comprising: a preferably biosourced, polyacid component or its preferably biosourced acid anhydride; a first polyol component, preferably biosourced, having at least two hydroxyl groups; a second biosourced polyol component having at least one 1,4:3,6-dianhydrohexitol unit; and a component based on biosourced oil or its corresponding biosourced fatty acid.

Abstract: The object of a present invention is an alkyd resin as well as the method for preparing such a resin, said alkyd resin comprising: a preferably biosourced, polyacid component or its preferably biosourced acid anhydride; a first polyol component, preferably biosourced, having at least two hydroxyl groups; a second biosourced polyol component having at least one 1,4:3,6-dianhydrohexitol unit; and a component based on biosourced oil or its corresponding biosourced fatty acid.

Abstract: The invention relates to a rheological additive in the form of a preactivated paste, comprising: A) at least one fatty acid diamide introduced in powder form, it being possible for the powder optionally to comprise, in addition to the diamide, hydrogenated castor oil, B) at least one organic plasticizer, the plasticizer being liquid at room temperature. A specific process for the preparation of this rheological additive, a composition comprising the additive, a process for the preparation of the composition and specific uses, in particular specific coatings obtained from the additive, are also disclosed.

Abstract: The invention relates to a rheological additive in the form of a preactivated paste, comprising: A) at least one fatty acid diamide introduced in the powder form, it being possible for said powder optionally to comprise, in addition to the diamide, hydrogenated castor oil, B) at least one organic plasticizer, said plasticizer being liquid at room temperature. A specific process for the preparation of this rheological additive, a composition comprising said additive, a process for the preparation of said composition and specific uses, in particular specific coatings obtained from said additive, are also concerned.