Moisture-curable adhesive composition
An object of this invention is to provide an adhesive composition that comprises a moisture-curable resin and a modified polyolefin and that achieves an excellent liquid state and excellent adhesion to polyolefin resin substrates. Provided is a moisture-curable adhesive resin composition comprising a moisture-curable resin (A) and a modified polyolefin resin (B), wherein the content of the modified polyolefin resin (B) is 2 parts by mass or more per 100 parts by mass of the moisture-curable resin (A).
1. An adhesive resin composition comprising a moisture-curable resin (A) and a modified polyolefin resin (B), wherein the content of the modified polyolefin resin (B) is 2 parts by mass or more and 100 parts by mass or less, per 100 parts by mass of the moisture-curable resin (A),
wherein the moisture-curable resin (A) is a resin containing a hydrolyzable silyl group at an end and having a main chain comprising a polyether or (meth)acrylate,
wherein the modified polyolefin resin (B) has a polyether structure or a (meth)acrylate polymer structure, and
wherein the modified polyolefin resin (B) is a polyolefin resin having a structure similar to that of the main skeleton of the moisture-curable resin (A).
2. The adhesive resin composition according to claim 1 , wherein the modified polyolefin resin (B) is a resin having an amide bond and/or ester bond.
3. The adhesive resin composition according to claim 1 , wherein the content of the polyether resin or (meth)acrylate polymer in the modified polyolefin resin (B) is 2 to 40 mass %.
4. The adhesive resin composition according to claim 1 , wherein the content of the polyether resin or (meth)acrylate polymer in the modified polyolefin resin (B) is 2 to 40 mass %.
5. The adhesive resin composition according to claim 1 , wherein the modified polyolefin resin (B) has a weight average molecular weight of 10,000 to 150,000.
6. The adhesive resin composition according to claim 1 , further comprising a radical polymerizable monomer (C).
7. The adhesive resin composition according to claim 6 , wherein the radical polymerizable monomer (C) is a compound containing a (meth)acryloyl group at an end.
8. The adhesive resin composition according to claim 1 , further comprising a radical polymerization initiator (D).
9. The adhesive resin composition according to claim 1 , further comprising a silanol condensation catalyst (E).
10. The adhesive resin composition according to claim 1 , wherein the moisture-curable resin (A) is a resin having an olefin component content of 50 mass % or less.