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US 5,502,104 AGranted
Use of a copolymer for the preparation of aqueous emulsions
AssigneeHoechst Aktiengesellschaft
InventorsGerd Hohner, Franz-Leo Heinrichs, Ju/ rgen Kainz
Life of this patent
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Abstract
Copolymers which have been prepared by copolymerization of long-chain .alpha.-olefins with olefinically unsaturated acids and esters and, if appropriate, vinyl-aromatic compounds are particularly suitable for economical preparation of aqueous emulsions. The emulsions are suitable as care agents for flooring, automobiles, furniture and leather and for hydrophobizing, for treatment of textiles, for coating glass, for anticorrosive preservation, for example of automobiles, as facade protection and for sealing concrete.
Claims2
An aqueous emulsion comprising
- I) 1 to 35% by weight of a copolymer comprising
- a) at least 20% by weight of units which are derived from at least one C.sub.12 -C.sub.60 -.alpha.-olefin,
- b) 1 to 30% by weight of units which are derived from at least one carboxylic acid of the formula CH.sub.2 .dbd.CR.sup.1 --COOH,
- c) 18.2 to 60% by weight of units which are derived from at least one carboxylic acid ester of the formula CH.sub.2 .dbd.CR.sup.1 --COOR.sup.2,
- in which R.sup.1 is a hydrogen atom or a methyl group, and R.sup.2 is a straight chain or branched alkyl radical having 1 to 22 carbon atoms, and
- d) 0 to 30% by weight of units which are derived from styrene, 3-methylstyrene, 4-methylstyrene, or .alpha.-methylstyrene,
- II) 1 to 30% by weight of an emulsifier, and
- III) 50 to 98% by weight of water.
5 more elements
Dependencies are inferred from the claim text.