Water-soluble or water-disintegrable copolymer
AssigneeBellandTechnology AG
InventorsJuan-Carlos Ruggieri, Herbert Leder, Frank Osan
Life of this patent
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Abstract
A copolymer is based on α-β-unsaturated monocarboxylic acid, wherein the copolymer has a molar mass <100 000 g/mol. A process of preparing the copolymer compound includes mixing a copolymer in a melt with an impact modifier under action of shearing forces, a proportion of copolymer and impact modifier being selected preferably such that the copolymer forms a continuous phase and the impact modifier forms a discontinuous phase.
Claims16
A random copolymer based on α-β-unsaturated monocarboxylic acid, wherein the copolymer has a molar mass of 30,000 to <100 000 g/mol and a polydispersity of 2 to 3, and wherein the α-β-unsaturated monocarboxylic acid has a weight fraction of>50% by weight, based on the total weight of the copolymer, wherein the copolymer is in a form of a strand or profile, and the copolymer has in addition to the α-β-unsaturated monocarboxylic acid as comonomer an alkyl ester and/or alkoxy alkyl ester, of an α-β-unsaturated monocarboxylic acid.
A random copolymer based on α-β-unsaturated monocarboxylic acid, wherein the copolymer has a molar mass of 30,000 to <100 000 g/mol and a polydispersity of 2 to 3, the α-β-unsaturated monocarboxylic acid has a weight fraction of>50% by weight, based on the total weight of the copolymer, the copolymer is in a form of a strand or profile, and the copolymer is a solution copolymer.
A random copolymer based on α-β-unsaturated monocarboxylic acid, wherein the copolymer has a molar mass of 30,000 to <100 000 g/mol and a polydispersity of 2 to 3, the α-β-unsaturated monocarboxylic acid has a weight fraction of>50% by weight, based on the total weight of the copolymer, the copolymer is in a form of a strand or profile, and the copolymer has in addition to the α-β-unsaturated monocarboxylic acid as comonomer an ester of an α-β-unsaturated monocarboxylic acid.
Dependencies are inferred from the claim text.