Claims
- 1. A coating system comprising a film-forming polymer capable of curing through a selfcrosslinking reaction or a crosslinking reaction with a separate crosslinker and a catalytic amount of an agent for promoting the crosslinking reaction, wherein said agent is bound to polymeric microparticles having a diameter of 0.01 to 6 microns present in said system, and polymer microparticles being prepared by polymerizing a mixture of ethylenically unsaturated monomers, said agent being (i) an electron donating tertiary amine, present in a combination with an epoxy resin and an acid anhydride hardener, (ii) a metallic compound or a tertiary amine present in a combination with an active hydrogen atomcontaining polymer and a polyisocyanate, (iii) a dryer present in a polymer capable of curing through an oxidation polymerization reaction, (iv) an organic cobalt salt, an amine or a mercaptan present in an unsaturated polyester resin, or (v) a photosensitizer present in a photocurable resin.
- 2. The system according to claim 1 wherein at least a portion of said monomer mixture consists of a monomer having at least two polymerizable sites per molecule.
- 3. The system according to claim 1 wherein at least a portion of said monomer mixture consists of a combination of two monomers having mutually reactive groups.
- 4. The system according to claim 1 comprising an epoxy resin and an acid anhydride hardener, wherein said agent is an electron donating tertiary amine.
- 5. The system according to claim 1 comprising a polymer having active hydrogen atoms and a polyisocyanate, and wherein said agent is a metallic compound or a tertiary amine.
- 6. The system according to claim 1, comprising a polymer capable of curing through an oxidation polymerization reaction and wherein said agent is a dryer.
- 7. The system according to claim 1 comprising an unsaturated polyester resin and wherein said agent is an organic cobalt salt, an amine or a mercaptan.
- 8. The system according to claim 1 comprising a photocurable resin and wherein said agent is a photosensitizer.
- 9. The system according to claim 1 wherein said polymerization is carried out in the presence of an amphoionic substance.
- 10. The system according to claim 1 wherein said agent is bound to said polymeric microparticles by chemically introducing an ethylenic unsaturation function into the promoting agent molecule and copolymerizing the resulting promoting agent-containing monomer with said monomer mixture.
- 11. The system according to claim 1 wherein said agent is bound to said polymeric microparticles by incorporating the promoting agent into said monomer mixture and polmerizing the monomer mixture containing the promoter.
- 12. The system according to claim 1 wherein said agent is bound to said polymeric microparticles by impregnating the polymeric microparticles with a solution of said promoting agent.
Priority Claims (1)
Number |
Date |
Country |
Kind |
59-126225 |
Jun 1984 |
JPX |
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Parent Case Info
This a continuation, of application Ser. No. 745,983 filed June 18, 1985, now abandoned.
US Referenced Citations (4)
Number |
Name |
Date |
Kind |
4340511 |
Backhouse et al. |
Jul 1982 |
|
4427820 |
Backhouse et al. |
Jan 1984 |
|
4468493 |
Ishikura et al. |
Aug 1984 |
|
4569966 |
Piccirilli et al. |
Feb 1986 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
745983 |
Jun 1985 |
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