Two-component lamination adhesive comprising an - NCO component and an -OH component, characterized in that the -NCO component is obtained by reacting, according to a polyaddition reaction, a stoichiometric excess of an aromatic or aliphatic polyisocyanate with a composition formed of diols comprising, on the basis of the total weight of said composition: - from 60 to 100% weight/weight of a composition composed of one or more di(polyricinoleate) diols having a hydroxyl number N OH of between 30 and 70 mg KOH/g and the formula: in which: - A represents a divalent hydrocarbon radical optionally interrupted by one or more heteroatoms chosen from oxygen or sulfur; - m and n, which are identical or different, represent 0 or an integer ranging from 1 to 11 and are such that m+n varies from 0 to 11; and - from 0 to 40% weight/weight of a composition composed of diols having an N OH of between 72 and 360 mg KOH/g and which are chosen from: - dimerized fatty alcohols comprising from 20 to 44 carbon atoms, and - di(polyricinoleate) diols having the formula: in which: - B represents a radical as defined above for A which is identical to or different from the radical represented by A; - p and q, which are identical or different, represent 0 or an integer ranging from 1 to 3 and are such that p+q varies from 0 to 3. - from 60 to 100% weight/weight of a composition composed of one or more di(polyricinoleate) diols having a hydroxyl number N OH of between 30 and 70 mg KOH/g and the formula: in which: - A represents a divalent hydrocarbon radical optionally interrupted by one or more heteroatoms chosen from oxygen or sulfur; - m and n, which are identical or different, represent 0 or an integer ranging from 1 to 11 and are such that m+n varies from 0 to 11; and - from 0 to 40% weight/weight of a composition composed of diols having an N OH of between 72 and 360 mg KOH/g and which are chosen from: - dimerized fatty alcohols comprising from 20 to 44 carbon atoms, and - di(polyricinoleate) diols having the formula: in which: - B represents a radical as defined above for A which is identical to or different from the radical represented by A; - p and q, which are identical or different, represent 0 or an integer ranging from 1 to 3 and are such that p+q varies from 0 to 3. - A represents a divalent hydrocarbon radical optionally interrupted by one or more heteroatoms chosen from oxygen or sulfur; - m and n, which are identical or different, represent 0 or an integer ranging from 1 to 11 and are such that m+n varies from 0 to 11; and - from 0 to 40% weight/weight of a composition composed of diols having an N OH of between 72 and 360 mg KOH/g and which are chosen from: - dimerized fatty alcohols comprising from 20 to 44 carbon atoms, and - di(polyricinoleate) diols having the formula: in which: - B represents a radical as defined above for A which is identical to or different from the radical represented by A; - p and q, which are identical or different, represent 0 or an integer ranging from 1 to 3 and are such that p+q varies from 0 to 3. - dimerized fatty alcohols comprising from 20 to 44 carbon atoms, and - di(polyricinoleate) diols having the formula: in which: - B represents a radical as defined above for A which is identical to or different from the radical represented by A; - p and q, which are identical or different, represent 0 or an integer ranging from 1 to 3 and are such that p+q varies from 0 to 3. - B represents a radical as defined above for A which is identical to or different from the radical represented by A; - p and q, which are identical or different, represent 0 or an integer ranging from 1 to 3 and are such that p+q varies from 0 to 3.