EP0037150A2
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EP
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Process for the preparation of polymer dispersions
Assignee: Covestro Resins BV
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Filing: 1981-03-25
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Granted: —
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Expires: 2001-03-25
Abstract
Abstract The invention concerns a process forthe production of an aqueous polymer dispersion by emulsion polymerisation wherein at least one monomer containing a phosphoric acid, sulphonic acid or carboxylic acid group or emulsifying group is present, at least one emulsifier is present and in which at least one compound containing a polyoxyethylene chain of 60 to 400 oxyethylene units is present chosen from the group of polyoxyethylene glycols, emulsifiers containing a polyoxyethylene chain and copolymerisable monomers containing a polyoxyethylene chain. Said dispersion is very suitable for use in high-gloss paints.
Inventors
- 👤 Dick Adriaan Pons
- 👤 Anno Bijker
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 22:57
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
150 words
Process for the preparation of an aqueous dispersion of a water-insoluble polymer by addition polymerization of unsaturated monomers in water with an appropriate initiator and at least one emulsifier, characterized in that at least one monomer containing a phosphoric acid, sulphonic acid or carboxylic acid group or a group functioning as emulsifier is applied in a quantity of between 0.1 and 5.0 wt.%, calculated relative to the total quantity of monomer, in that at least one anionic or non-ionic emulsifier is applied in a quantity of between 0.1 and 10 wt.%, calculated relative to the total quantity of monomer, and in that there is at least one compound present that contains a polyoxyethylene chain containing between 60 and 400 oxyethylene units and that is chosen from the group of polyethylene glycols, non-ionic emulsifiers containing a polyoxyethylene chain, anionic emulsifiers containing a polyoxyethylene chain, and copolymerizable compounds containing a polyoxyethylene chain.
Claim 2
Dependent Claim
150 words
Process for the preparation of an aqueous dispersion of a water-insoluble polymer by addition polymerization of unsaturated monomers in water with an appropriate initiator and at least one emulsifier, characterized in that at least one monomer containing a phosphoric acid, sulphonic acid or carboxylic acid group or a group functioning as emulsifier is applied in a quantity of between 0.1 and 5.0 wt.%, calculated relative to the total quantity of monomer, in that at least one anionic or non-ionic emulsifier is applied in a quantity of between 0.1 and 10 wt.%, calculated relative to the total quantity of monomer, and in that there is at least one compound present that contains a polyoxyethylene chain containing between 60 and 400 oxyethylene units and that is chosen from the group of polyethylene glycols, non-ionic emulsifiers containing a polyoxyethylene chain, anionic emulsifiers containing a polyoxyethylene chain, and copolymerizable compounds containing a polyoxyethylene chain.
Claim 3
Dependent Claim
25 words
Process according to Claim 1, characterized in that at least one compound with a polyoxyethylene chain containing between 80 and 120 oxyethylene units is applied.
Claim 4
Dependent Claim
40 words
Process according to Claims 1-2, characterized in that between 0.5 and 7.5 wt. %, calculated relative to the quantity of monomer, of a non-ionic non-copolymerizable emulsifier with a polyoxyethylene chain consisting of 60-400 and preferably 80-120 oxyethylene units is applied.
Claim 5
Dependent Claim
66 words
Process according to Claim 3, characterized in that the non-ionic emulsifier is chosen from the group formed by ethoxylated C 6 -C 20 aliphatic alcohols, ethoxylated (C4-C20 alkyl) phenols, adducts of ethylene oxide and propylene oxide on a polyamine, which adducts consist to more than 60 wt. % of oxyethylene units, and ethylene oxide/propylene oxide block copolymers consisting to more than 60 wt.% of oxyethylene units.
Claim 6
Dependent Claim
21 words
Process according to Claim 3-4, characterized in that in addition to the non-ionic emulsifier at least one anionic emulsifier is applied.
Claim 7
Dependent Claim
40 words
Process according to Claims 1-2, characterized in that between 0.5 and 7.5 wt. %, calculated relative to the quantity of monomer, of an anionic non-copolymerizable emulsifier with a polyoxyethylene chain consisting of 60-400 and preferably 80-120 oxyethylene units is applied.
Claim 8
Dependent Claim
36 words
Process according to Claim 6, characterized in that the anionic emulsifier is chosen from the group formed by phosphated, carboxylated or sulphonated derivatives of ethoxylated C6-C20 aliphatic alcohols and ethoxylated (C4-C20 alkyl) phenols, and salts thereof.
Claim 9
Dependent Claim
14 words
Process according to Claims 6-7, characterized in that a carboxylate or phosphate is applied.
Claim 10
Dependent Claim
41 words
Process according to Claims 1-2, characterized in that a copolymerizable emulsifier with u polyoxyethylene chain consisting of 60-400 and preferably 80-120 oxyethylene units is applied in a quantity of between 0.5 and 5.0 wt. %, relative to the quantity of monomer.
Claim 11
Dependent Claim
27 words
Process according to Claims 1-9, characterized in that between 0.1 and 1.5 wt.% of a copolymerizable monomer containing a phosphoric acid or sulphonic acid group is applied.
Claim 12
Dependent Claim
26 words
Process according to Claims 1-9, characterized in that between 0.1 and 1.5 wt. % of a copolymerizable emulsifier not containing a long polyoxyalkylene chain is applied.
Claim 13
Dependent Claim
15 words
Process according to Claim 1, as described in the text and elucidated in the examples.
Claim 14
Dependent Claim
18 words
Aqueous dispersions of a water-insoluble polymer, prepared by the process according to one or more of Claims 1-12.
Claim 15
Dependent Claim
135 words
Process for the preparation of an aqueous polymer dispersion with increased flow, characterized in that an aqueous dispersion of a water-insoluble polymer containing between 0.1 and 5.0 wt. %, calculated relative to the total quantity of monomer, of a monomer possessing a phosphoric acid, sulphonic acid or carboxylic acid group or a group functioning as emulsifier, in which dispersion there is at least one compound with a long polyoxyethylene chain containing between 60 and 400 oxyethylene units, chosen from the group of polyethylene glycols, non-copolymerizable non-ionic or anionic emulsifiers containing a polyoxyethylene chain, and copolymerizable compounds containing a polyoxyethylene chain, is mixed with a polymer soluble in an aqueous alkaline environment in a ratio such that there is between 1 and 25 wt. % alkali-soluble polymer present, calculated relative to the total quantity of polymer.
Claim 16
Dependent Claim
135 words
Process for the preparation of an aqueous polymer dispersion with increased flow, characterized in that an aqueous dispersion of a water-insoluble polymer containing between 0.1 and 5.0 wt. %, calculated relative to the total quantity of monomer, of a monomer possessing a phosphoric acid, sulphonic acid or carboxylic acid group or a group functioning as emulsifier, in which dispersion there is at least one compound with a long polyoxyethylene chain containing between 60 and 400 oxyethylene units, chosen from the group of polyethylene glycols, non-copolymerizable non-ionic or anionic emulsifiers containing a polyoxyethylene chain, and copolymerizable compounds containing a polyoxyethylene chain, is mixed with a polymer soluble in an aqueous alkaline environment in a ratio such that there is between 1 and 25 wt. % alkali-soluble polymer present, calculated relative to the total quantity of polymer.
Claim 17
Dependent Claim
26 words
Process according to Claim 14, characterized in that between 3 and 10 wt. %, calculated relative to the total quantity of polymer, alkali-soluble polymer is applied.
Claim 18
Dependent Claim
18 words
Paint in which a polymer dispersion prepared according to Claim 14 or 15 is applied as binding agent.
References Cited (Backward Citations)
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