Method for adhering polyolefin materials
AssigneeSunstar Giken Kabushiki Kaisha
InventorsYoshihiro Nakata, Shinji Ochi
Life of this patent
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Abstract
A polyolefin material can be adhered to other material with good adhesion durability by 1) applying a first primer which contains i) a resin comprising a backbone of hydrocarbon chains and/or polybutadiene chains, and ii) a polyisocyanate compound or an alkoxysilane compound, to the surface of a polyolefin material, 2) applying a second primer which contains a polyisocyanate compound or an alkoxysilane compounds, onto the layer of the first primer, and 3) adhering the surface of the polyolefin material to which the first and second primers are applied to other material using a moisture-curing polyurethane adhesive.
Claims5
A method for adhering a polyolefin material to other material comprising the steps of:
- 1) applying a first primer which comprises
- i) a resin comprising at least one backbone selected from the group consisting of hydrocarbon chains and polybutadiene chains, and
- ii) at least one compound selected from the group consisting of polyisocyanate compounds and alkoxysilane compounds, to the surface of a polyolefin material,
- 2) applying a second primer which comprises
- a) at least one compound selected from the group consisting of polyisocyanate compounds and alkoxysilane compounds, and
- b) optionally at least one resinous compound selected from the group consisting of polyurethane resins, acrylic resins, polyester resins, epoxy resins, ethylene-vinyl acetate copolymers and chlorinated rubbers,
- onto the layer of said first primer, and
- 3) adhering the surface of the polyolefin material to which the first and second primers are applied to other material using a moisture-curing polyurethane adhesive.
Dependencies are inferred from the claim text.