EP0172589A1
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EP
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Dispersion of addition (co)polymers in an organic liquid
Assignee: Akzo NV
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Filing: 1985-07-05
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Granted: —
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Expires: 2005-07-05
Abstract
Abstract Stable dispersion of addition (co)polymers in an inert relatively non-polar organic hydrocarbon liquid, the dispersed particles embracing both a (co)polymer and a graft polymer.The (co)polymers are substantially composed of:a) 5 to 100 mole % of styrene and/or methyl styrene;b) 0 to 95 mole % of alkyl methacrylate having 1 or 2 carbon atoms in the alkyl group and-or alkoxyalkylene methacrylate having 1 or 2 carbon atoms in the alkoxy group and the alkylene group;c) 0 to 40 mole % of alkyl methacrylate having 3 to 12 carbon atoms in the alkyl group;d) 0 to 40 mole % of hydroxyalkyl methacrylate having 2 to 12 carbon atoms in the alkyl group and/or glycidyl methacrylate; ande) 0 to 20 mole % of methacrylic acid.The (co)polymers are grafted to a graft polymer of a number average molecular weight of 2000 to 10.000, at least 60% by weight of which consists of butadiene, the weight percentage graft polymer being 20 to 200% of that of the (co)polymer and the sum of this percentage and the percentage of styrene and/or methyl styrene in the copolymer being higher than or equal to 50.At room temperature the dispersions dry to form a smooth and very glossy film.
Inventors
- 👤 Roelof Buter
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 15:48
CPC Classifications
C; C09; C09D; C09D151/00; C09D151/04; C08; C08F; C08F2/00; C08F2/04; C08F2/06; C08F2/08; C08F279/00; C08F279/02
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
203 words
A stable dispersion of addition (co)polymers in an inert relatively non-polar organic hydrocarbon liquid, the dispersed particles embracing both a (co)polymer and a graft polymer, characterized in that the (co)polymers are substantially composed of: a. 5 to 100 mole % of styrene and/or methyl styrene; b. 0 to 95 mole % of alkyl methacrylate having 1 or 2 carbon atoms in the alkyl group and/or alkoxyalkylene methacrylate having 1 or 2 carbon atoms in the alkoxy group and the alkylene group; c. 0 to 40 mole % of alkyl methacrylate having 3 to 12 carbon atoms in the alkyl group; d. 0 to 40 mole % of hydroxyalkyl methacrylate having 2 to 12 carbon atoms in the alkyl group and/or glycidyl methacrylate; and e. 0 to 20 mole % of methacrylic acid, and that they are grafted to a functionalized or non-functionalized graft polymer of a number average molecular weight of 2000 to 10000, at least 60 % by weight of which consists of butadiene, the weight percentage graft polymer being 20 to 200 % of that of the (co)polymer and the sum of this percentage and the percentage styrene and/or methyl styrene in the copolymer being higher than or equal to 50.
Claim 2
Dependent Claim
203 words
A stable dispersion of addition (co)polymers in an inert relatively non-polar organic hydrocarbon liquid, the dispersed particles embracing both a (co)polymer and a graft polymer, characterized in that the (co)polymers are substantially composed of: a. 5 to 100 mole % of styrene and/or methyl styrene; b. 0 to 95 mole % of alkyl methacrylate having 1 or 2 carbon atoms in the alkyl group and/or alkoxyalkylene methacrylate having 1 or 2 carbon atoms in the alkoxy group and the alkylene group; c. 0 to 40 mole % of alkyl methacrylate having 3 to 12 carbon atoms in the alkyl group; d. 0 to 40 mole % of hydroxyalkyl methacrylate having 2 to 12 carbon atoms in the alkyl group and/or glycidyl methacrylate; and e. 0 to 20 mole % of methacrylic acid, and that they are grafted to a functionalized or non-functionalized graft polymer of a number average molecular weight of 2000 to 10000, at least 60 % by weight of which consists of butadiene, the weight percentage graft polymer being 20 to 200 % of that of the (co)polymer and the sum of this percentage and the percentage styrene and/or methyl styrene in the copolymer being higher than or equal to 50.
Claim 3
Dependent Claim
27 words
A dispersion according to claim 1, characterized in that the weight ratio between the (co)polymers and the graft polymer is in the range of 4:1 to 1:2.
Claim 4
Dependent Claim
28 words
A dispersion according to claim 1, characterized in that the graft polymer containing at least 60 % by weight of butadiene is functionalized with -OH and/or -COOH groups.
Claim 5
Dependent Claim
31 words
A dispersion according to claim 1, characterized in that the graft polymer functionalized with -OH and/or -COOH groups has been reacted with a diisocyanate to form a polyurethane or a polyamide.
Claim 6
Dependent Claim
19 words
A dispersion according to claim 1, characterized in that the graft polymer is composed of butadiene, styrene and/or acrylonitrile.
Claim 7
Dependent Claim
25 words
A dispersion according to claim 1, characterized in that when use is made of hydroxyalkyl methacrylate it also contains a compound reacting with hydroxyl groups.
Claim 8
Dependent Claim
18 words
A dispersion according to claim 1, characterized in that the compound reacting with hydroxyl groups is polyalkoxyalkyl melamine.
Claim 9
Dependent Claim
18 words
A dispersion according to claim 1, characterized in that the compound reacting with hydroxyl groups is polybutoxymethyl melamine.
Claim 10
Dependent Claim
30 words
A dispersion according to claim 1, characterized in that it contains a drier, such as the octoate or naphthenate of Co, Ce, Fe, Cu, Mn, Zr, Ca, Ba and/or Pb.
Claim 11
Dependent Claim
27 words
A dispersion according to claim 1, characterized in that it contains a pigment in an amount of at least 5% by weight, based on the addition (co)polymers.
Claim 12
Dependent Claim
15 words
A dispersion according to claim 10, characterized in that as pigment non-leafing aluminium is used.
Claim 13
Dependent Claim
217 words
A process for the preparation of a stable dispersion according to claim 1, characterized in that a composition substantially consisting of: a. 5 to 100 mole % of styrene and/or methyl styrene; b. 0 to 95 mole % of alkyl methacrylate with 1 or 2 carbon atoms in the alkyl group and/or alkoxyalkylene methacrylate with 1 or 2 carbon atoms in the alkoxy group and the alkylene group; c. 0 to 4 mole % of alkyl methacrylate with 3 to 12 carbon atoms in the alkyl group, d. 0 to 40 mole % of hydroxyalkyl methacrylate with 2 to 12 carbon atoms in the alkyl group and/or glycidyl methacrylate; and e. 0 to 20 mole % of methacrylic acid, together with an active amount of a peroxide as initiator is polymerized in an inert relatively non-polar organic hydrocarbon liquid at a temperature of 60° to 120°C in the presence of a functionalized or non-functionalized graft polymer containing at least 60 % by weight of butadiene and having a number average molecular weight in the range of 2000 to 10000, the weight percentage graft polymer being 20 to 200 % of that of the (co)polymer and the sum of this percentage and the percentage styrene and/or methyl styrene in the copolymer being higher than or equal to 50.
Claim 14
Dependent Claim
27 words
A process according to claim 12, characterized in that the weight ratio between the (co)polymer and the graft polymer is in the range of 4:1 to 1:2.
Claim 15
Dependent Claim
56 words
A process according to claim 12, characterized in that the polymerization is carried out in an inert relatively non-polar organic hydrocarbon liquid which is a non-solvent for polystyrene and/or polymethyl styrene and/or styrene-methacrylate copolymers and/or styrene methacrylate methacrylic acid copolymers and/or methyl styrene-methacrylate copolymers and/or methyl styrene-methacrylate-methacrylic acid copolymers and a solvent for the graft polymer.
Claim 16
Dependent Claim
26 words
A process according to claim 12, characterized in that the inert relatively non-polar organic hydrocarbon liquid contains at least 50 % by weight of aliphatic hydrocarbons.
Claim 17
Dependent Claim
22 words
A process according to claim 12, characterized in that the polymerization is carried out in turpentine, white spirit, petroleum ether or iso-octane.
Claim 18
Dependent Claim
38 words
A process according to claim 12, characterized in that the polymerization is carried out using as initiator a substituted or unsubstituted dibenzoyl peroxide in an amount of 0,1 to 10 % by weight, calculated on the graft polymer.
Claim 19
Dependent Claim
37 words
A process according to claim 12, characterized in that the polymerization is carried out using as initiator a substituted or unsubstituted dibenzoyl peroxide in an amount of 1 to 5% by weight, calculated on the graft polymer.
Claim 20
Dependent Claim
21 words
A process according to claim 17 or 18, characterized in that as substituted dibenzoyl peroxide there is used di(ortho-methylbenzoyl)peroxide and/or di(2,4-dichlorobenzoyl)peroxide.
Claim 21
Dependent Claim
24 words
A process according to claim 12, characterized in that the polymerization is carried out at a temperature in the range of 80° to 100°C.
Claim 22
Dependent Claim
28 words
A process for coating a substrate of wood, plastics or a metal, characterized in that a dispersion according to claim 1 is applied to the substrate and cured.
References Cited (Backward Citations)
GB893429A
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GB990154A
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GB1011482A
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US3449471A
Cited
DE2157886A1
Cited
US3779977A
Cited
FR2259838A1
Cited
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