Two-part curable composition
AssigneeSunstar Giken Kabushiki Kaisha
InventorsMasaki Ukai, Hitoshi Ohno, Koichiro Masunaga, Mutsuhisa Miyamoto, Kazunobu Takami
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Abstract
A two-pack curable composition of the present invention comprises plastisol liquid A which comppounds a thermoplastic resin and a plasticizer, and liquid B which compounds a gelling agent and is characterized in that it has a sprayable viscosity when liquids A and B are mixed and gels within 30 seconds to 60 minutes after application. This two-pack curable composition can be applied in a body-welding step of an automobile manufacturing line as a body or seam sealer (for water-proofing, air-tightness, dust-proofing or rust-prevention of welded areas), an underbody coating (for anti-chipping), or an adhesive.
Claims10
A two-pack curable composition for use in an automobile manufacturing line comprising:
- (a) plastisol liquid A which contains a plasticizer and a non-aqueous thermoplastic resin selected from the group consisting of polyvinyl chloride, vinyl chloride-vinyl acetate copolymers, core-shell acrylic resins and gradient acrylic resins, and
- (b) liquid B which contains a gelling agent selected from the group consisting of acrylate ester monomers, methacrylate ester monomers, and vinyl chloride monomer,
- wherein said composition gels at room temperature on mixing liquid A and liquid B, and
- wherein the gelling time of the mixture of liquids A and B is from 30 seconds to 60 minutes at room temperature after mixing, and
- wherein when the thermoplastic resin is selected from the group consisting of core-shell acrylic resins and gradient acrylic resins, the gelling agent is selected from the group consisting of acrylate ester monomers and methacrylate ester monomers,
- and wherein when the thermoplastic resin is selected from the group consisting of polyvinyl chloride and vinyl chloride-vinyl acetate copolymers, the gelling agent is vinyl chloride monomer.
Dependencies are inferred from the claim text.