EP0055477A2
Expired / Lapsed
EP
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Aqueous dispersion compositions
Assignee: Asahi Kasei Corp
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Filing: 1981-12-23
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Granted: —
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Expires: 2001-12-23
Abstract
Abstract An aqueous dispersion composition is described, which is prepared by uniformly mixing (A) a mixture of aromatic compounds having an average of at least 0.5 epoxy groups and from 0.1 to 1.5 acryloyl or methacryloyl groups in the molecule, and (B) at least one ethylenic monomer, and then polymerizing the mixture. In other embodiments, the composition can contain a polyamine-based hardener, and additionally, a resin, e.g. a phenol resin and a terpene resin. This composition has excellent storage stability and can provide a coating film having excellent water resistance, heat resistance, and adhesiveness.
Inventors
- 👤 Hidekazu Ishimura
- 👤 Yoshimi Kakutani
- 👤 Naohisa Aoyagi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 08:58
CPC Classifications
C; C09; C09D; C09D4/00; C08; C08F; C08F299/00; C08F299/02; C08F299/026; C08L; C08L63/00; C08L63/10; C09J; C09J4/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
64 words
I. A process for preparing an aqueous dispersion composition, characterized by uniformly mixing (A) a mixture of aromatic compounds having epoxy groups and/or acryloyl or methacryloyl groups, said mixture containing an average of at least 0.5 epoxy groups and an average of from 0.1 to 1.5 acryloyl or methacryloyl groups per molecule, and (B) at least one ethylenic monomer, and then polymerizing the mixture.
Claim 2
Dependent Claim
81 words
A process for preparing an aqueous dispersion composition, characterized in that (I) an aqueous dispersion is prepared by uniformly mixing (A) a mixture of aromatic compounds having epoxy groups and/or acryloyl or methacryloyl groups, said mixture containing an average of at least 0.5 epoxy groups and from 0.1 to 1.5 acryloyl or methacryloyl groups per molecule, and (B) at least one ethylenic monomer, and then polymerizing the mixture, and further (II) a polyamine-based or polysulfide-based hardener is added to the composition.
Claim 3
Dependent Claim
106 words
A process for preparing an aqueous dispersion composition, characterized in that (I) an aqueous dispersion is prepared by uniformly mixing (A) a mixture of aromatic compounds having epoxy groups and/or acryloyl or methacryloyl groups, said mixture containing an average of at least 0.5 epoxy groups and from 0.1 to 1.5 acryloyl or methacryloyl groups per molecule, and (B) at least one ethylenic monomer, and then polymerizing the mixture, and further (II) at least one resin selected from the group consisting of a phenol resin, a terpene resin, a rosin gum, a rosin ester resin, and.a xylene resin; and (III) a polyamine-based hardener.are added to the composition.
Claim 4
Dependent Claim
18 words
A process as in any of claims 1 to 3, wherein (B) contains acrylic acid or methacrylic acid.
Claim 5
Dependent Claim
18 words
A process as in claim 1 or 4, wherein the mixture is polymerized by a solution polymerization method.
Claim 6
Dependent Claim
20 words
A process as in claim 5, wherein the solution polymerization is performed at a temperature of from 70°C to 100°C.
Claim 7
Dependent Claim
17 words
A process as in any of claims 1 to 4, wherein the polymerization is an emulsion polymerization.
Claim 8
Dependent Claim
22 words
A process as in any of claims 1 to 7 , wherein the epoxy equivalent of (A) is from 100 to 10,000.
Claim 9
Dependent Claim
18 words
' A process as in claim 8, wherein the epoxy equivalent of (A) is from 100 to 2,000.
Claim 10
Dependent Claim
31 words
A process as in any of claims 1 to 9 , wherein (A) is prepared by reacting an aromatic epoxy resin with at least one of acrylic acid and methacrylic acid.
Claim 11
Dependent Claim
22 words
1 1. A process as in any of claims 1 to 10, wherein (A) is a condensate of bisphenol A and epichlorohydrin.
Claim 12
Dependent Claim
23 words
A process as in any of claims 1 to 11 , wherein the weight ratio of (A) to (B) is 90/10 to 10/90.
Claim 13
Dependent Claim
42 words
13 A process as in claim 2 or 3, wherein the polyamine-based hardener is added in such an amount that the active hydrogen of the polyamine-based hardener is from 0.1 to 2.0 equivalents per equivalent of epoxy group.in the aqueous dispersion (I).
Claim 14
Dependent Claim
30 words
14 A process as in claim 1, 2 or 3, wherein the mixture of aromatic compounds has an average of from 0.4 to 0.8 acryloyl or methacryloyl groups per molecule.
Claim 15
Dependent Claim
29 words
15, A process as in claim 1, 2 or 3, wherein the ethylenic monomer contains about 1 % to 60 % by weight of acrylic acid or methacrylic acid.
References Cited (Backward Citations)
No citation records indexed.
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