US4476271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous dispersion type thermosetting coating composition
Assignee: Dai Nippon Toryo Co Ltd
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Filing: 1982-11-23
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Granted: 1984-10-09
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Expires: 2002-11-23
Abstract
Abstract Disclosed in an aqueous dispersion type thermosetting coating composition which comprises (i) fine thermosetting powdery resin particles having an average particle size of 5 to 50 mu and a softening point of 30 DEG to 120 DEG C., (ii) polyethylene glycol having an average molecular weight of 200-10,000 and (iii) a necessary amount of water.
Inventors
- 👤 Masafumi Kano
- 👤 Teruyuki Takahashi
- 👤 Hiroshi Igarashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:07
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/62; C08G18/6216; C08G18/70; C08G18/72; C08G18/80; C08G18/8061; C09D163/00; C09D167/00; C09D5/00; C09D5/02; C09D5/024; C08L; C08L2205/00; C08L2205/14; C08L2205/18; C08L71/00; C08L71/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
135 words
An aqueous dispersion type thermosetting coating composition consisting essentially of (a) 50-70 Parts by weight of an aqueous medium, (b) 50-30 parts by weight of thermosetting powdery resin particles dispersed in said aqueous medium, said resin particles having an average particle diameter of 50-50μ and a softening point of 30°-120° C. and containing therein at least one thermosetting resin selected from the group consisting of acrylic resin, polyester resin and epoxy resin and at least one one curing agent having cross-linkable functional groups that are operable to react with said thermosetting resin when said particles are heated, said curing agent being selected from the group consisting of blocked isocyanate compound, diepoxy compound and polycarboxylic acid, and (c) 0.5-10 parts by weight of polyethylene glycol having an average molecular weight of 200-10,000 in said aqueous medium.
Claim 2
Dependent Claim
135 words
An aqueous dispersion type thermosetting coating composition consisting essentially of (a) 50-70 Parts by weight of an aqueous medium, (b) 50-30 parts by weight of thermosetting powdery resin particles dispersed in said aqueous medium, said resin particles having an average particle diameter of 50-50μ and a softening point of 30°-120° C. and containing therein at least one thermosetting resin selected from the group consisting of acrylic resin, polyester resin and epoxy resin and at least one one curing agent having cross-linkable functional groups that are operable to react with said thermosetting resin when said particles are heated, said curing agent being selected from the group consisting of blocked isocyanate compound, diepoxy compound and polycarboxylic acid, and (c) 0.5-10 parts by weight of polyethylene glycol having an average molecular weight of 200-10,000 in said aqueous medium.
Claim 3
Dependent Claim
24 words
An aqueous dispersion type thermosetting coating composition according to claim 1, wherein the resin particles have an average particle size of 7 to 30μ.
Claim 4
Dependent Claim
24 words
An aqueous dispersion type thermosetting coating composition according to claim 1, wherein said polyethylene glycol has an average molecular weight of 300 to 6000.
Claim 5
Dependent Claim
14 words
An aqueous dispersion type thermosetting coating composition according to claim 1, containing a pigment.
Claim 6
Dependent Claim
34 words
An aqueous dispersion type thermosetting coating composition according to claim 1, wherein the thermosetting powdery resin particles are at least one member selected from the group consisting of acrylic resin and polyester resin particles.
Claim 7
Dependent Claim
25 words
An aqueous dispersion type thermosetting coating composition according to claim 1, wherein the thermosetting powdery resin particles contain 0.5-1 wt. % of a flow modifier.
Claim 8
Dependent Claim
38 words
A aqueous dispersion type thermosetting coating composition according to claim 1, wherein the aqueous medium contains 0.01-1.0 wt. %, based on the total of the aqueous medium and the thermosetting powdery resin particles, of a water-soluble thickening agent.
Claim 9
Dependent Claim
21 words
An aqueous dispersion type thermosetting coating composition according to claim 1, further containing up to 1 wt. % of a surfactant.
Claim 10
Dependent Claim
42 words
An aqueous dispersion type thermosetting coating composition according to claim 1, further containing up to 5 wt. % of a hydrophilic solvent having a boiling point higher than 180° C. in which the thermosetting powdery resin particles are insoluble at ambient temperature.
Claim 11
Dependent Claim
151 words
An aqueous dispersion type thermosetting coating composition consisting essentially of (a) 50-70 parts by weight of an aqueous medium. (b) 50-30 parts by weight of thermosetting powdery resin particles dispersed in said aqueous medium, said resin particles having an average particle diameter of 5-50μ and a softening point of 30°-120° C., each of said resin particles containing therein at least one thermosetting resin selected from the group consisting of acrylic resin, polyester resin obtained by polymerizing a polymerizate consisting essentially of polycarboxylic acid and polyhydric alcohol, and epoxy resin, and at least one curing agent having cross-linkable functional groups that are operable to react with said thermosetting resin when said particles are heated, said curing agent being selected from the group consisting of blocked isocyanate compound, diepoxy compound and polycarboxylic acid, and (c) 0.5-10 parts by weight of polyethylene glycol having an average molecular weight of 200-10,000 in said aqueous medium.
Claim 12
Dependent Claim
151 words
An aqueous dispersion type thermosetting coating composition consisting essentially of (a) 50-70 parts by weight of an aqueous medium. (b) 50-30 parts by weight of thermosetting powdery resin particles dispersed in said aqueous medium, said resin particles having an average particle diameter of 5-50μ and a softening point of 30°-120° C., each of said resin particles containing therein at least one thermosetting resin selected from the group consisting of acrylic resin, polyester resin obtained by polymerizing a polymerizate consisting essentially of polycarboxylic acid and polyhydric alcohol, and epoxy resin, and at least one curing agent having cross-linkable functional groups that are operable to react with said thermosetting resin when said particles are heated, said curing agent being selected from the group consisting of blocked isocyanate compound, diepoxy compound and polycarboxylic acid, and (c) 0.5-10 parts by weight of polyethylene glycol having an average molecular weight of 200-10,000 in said aqueous medium.
References Cited (Backward Citations)
US4156665A
Cited
US4296014A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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