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AssigneeArizona Chemical Company
InventorsJacques Salvetat, Ronald Wind
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The present invention relates to a resinous copolymer comprising monomer units of each of the groups of phenol compounds (I) and olefinically unsaturated non-acid terpene compounds (II), characterized in that the copolymer contains monomer units from the group of polyunsaturated olefin compounds (III), the monomer units of compound (III) being 1 to 70% by weight of the total of the monomer units of compounds (II) and (III), the monomer units of compounds (II) and (III) being at least 50% by weight of the total of monomer units of compounds (I), (II) and (III). The melting point of the copolymer is at least 130.degree. C. The copolymers are particularly useful in printing ink formulations.
A method for making a resinous copolymer which comprises reacting, in the presence of a Lewis acid catalyst, a mixture containing at least one monomer unit from each of the groups of phenol compounds (I), olefinically unsaturated non-acidic terpene compounds (II) and aliphatic, non-terpenic polyunsaturated olefin compounds (III), wherein the monomer units of compound (III) comprise from about 1 to about 70% by weight of the total weight of the monomer units of compounds (II) and (III), and wherein monomer units of compounds (II) and (III) are at least about 50% by weight of the total weight of the monomer units of compounds (I), (II) and (III).
A method for making a printing ink which comprises mixing a printing ink and a copolymer containing monomer units from of each of the groups of phenol compound (I), olefinically unsaturated non-acidic terpene compound (II) and aliphatic, non-terpenic polyunsaturated olefin compound (III), wherein the monomer units of compound (III) comprise from about 1 to about 70% by weight of the total weight of the monomer units of compounds (II) and (III), and wherein the monomer units of compounds (II) and (III) are at least about 50% by weight of the total weight of the monomer units of compounds (I), (II) and (III).
Dependencies are inferred from the claim text.