Claims
- 1. A metal/synthetic resin laminate comprising a metal substrate layer; an epoxy resin-based adhesive layer (a "1st adhesive layer"); an adhesive layer (a "2nd adhesive layer") comprising an epoxidized styrenic thermoplastic elastomer D prepared by epoxidation of a double bond derived from a conjugated diene compound of a block copolymer C comprising a polymer block A composed mainly of a styrenic compound and a polymer block B composed mainly of a conjugated diene compound or a partial hydrogenation product thereof; and a synthetic resin layer;
- wherein said 1st adhesive layer is adherent to the metal substrate layer and has affinity with the thermoplastic elastomer D of the 2nd adhesive layer and said second adhesive layer, which is different than the 1st adhesive layer, is adherent to the synthetic resin layer and provides elasticity to absorb contraction stress resulting from differences in linear expansion coefficients of the synthetic resin and the metal substrate.
- 2. The metal/synthetic resin laminate according to claim 1, wherein the 2nd adhesive layer comprises an adhesive containing the epoxidized styrenic thermoplastic elastomer D in an amount of 5-100 wt. %.
- 3. The metal/synthetic resin laminate according to claim 1 or 2, wherein the epoxidation ratio of the epoxidized styrenic thermoplastic elastomer D contained in the 2nd adhesive layer is 10-40%.
- 4. A synthetic-resin-clad metallic pipe, wherein a metallic pipe is laminated with an epoxy resin-based adhesive layer (a "1st adhesive layer"); an adhesive layer (a "2nd adhesive layer") comprising an epoxidized styrenic thermoplastic elastomer D prepared by epoxidation of a double bond derived from a conjugated diene compound of a block copolymer C comprising a polymer block A composed mainly of a styrenic compound and a polymer block B composed mainly of a conjugated diene compound or a partial hydrogenation product thereof; and a synthetic resin layer;
- wherein said 1st adhesive layer is adherent to the metallic pipe and has affinity with the thermoplastic elastomer D of the 2nd adhesive layer and said second adhesive layer, which is different than the 1st adhesive layer, is adherent to the synthetic resin layer and provides elasticity to absorb contraction stress resulting from differences in linear expansion coefficients of the synthetic resin and the metal substrate.
- 5. The synthetic-resin-clad metallic pipe according to claim 4, wherein the inner surface of the metallic pipe is sequentially laminated with an epoxy resin-based adhesive layer (a "1st adhesive layer"); an adhesive layer (a "2nd adhesive layer") comprising an epoxidized styrenic thermoplastic elastomer D prepared by epoxidation of a double bond derived from a conjugated diene compound of a block copolymer C comprising a polymer block A composed mainly of a styrenic compound and a polymer block B composed mainly of a conjugated diene compound or a partial hydrogenation product thereof; and a synthetic resin layer, in this order.
- 6. The metal/synthetic resin laminate according to claim 1 or claim 2, wherein the 1st adhesive layer comprises an epoxy resin selected from the group consisting of bisphenol A epoxy resins, bisphenol F epoxy resins, novolak epoxy resins and alicyclic epoxy resins.
- 7. The metal/synthetic resin laminate according to claim 6, wherein the 1st adhesive layer further comprises a setting agent for the epoxy resin, said setting agent being selected from the group consisting of amine setting agents, acid anhydride setting agents and cation setting agents.
- 8. The metal/synthetic resin laminate according to claim 7, wherein the epoxidation ratio of the epoxidized styrenic thermoplastic elastomer D contained in the 2nd adhesive layer is from 10 to 40%.
- 9. The metal/synthetic resin laminate according to claim 8, wherein the epoxidation ratio is from 15 to 35%.
- 10. The metal/synthetic resin laminate according to claim 1, wherein the 1st adhesive layer has a thickness of from 5 to 200 .mu.m and the 2nd adhesive layer has a thickness of from 5 to 500 .mu.m.
- 11. The metal/synthetic resin laminate according to claim 1, wherein the 1st adhesive layer has a thickness of from 10 to 50 .mu.m and the 2nd adhesive layer has a thickness of from 50 to 300 .mu.m.
- 12. The metal/synthetic resin laminate according to claim 1, comprising a seven layer structure comprising synthetic resin layer/2nd adhesive layer/1st adhesive layer/metal layer/1st adhesive layer/2nd adhesive layer/synthetic resin layer.
- 13. The metal/synthetic resin laminate according to claim 1, wherein the percentage of conjugated double bonds in polymer block B, based on the total of conjugated double bonds, hydrogenated double bonds and epoxidized double bonds is less than 40%.
- 14. The metal/synthetic resin laminate according to claim 1, wherein the synthetic resin layer comprises olefin resin, polyester resin or polyamide resin.
- 15. The metal/synthetic resin laminate according to claim 1, wherein the synthetic resin layer comprises vinyl chloride resin.
- 16. The synthetic-resin-clad metallic pipe according to claim 4 or claim 5, wherein the 1st adhesive layer comprises an epoxy resin selected from the group consisting of bisphenol A epoxy resins, bisphenol F epoxy resins, novolak epoxy resins and alicyclic epoxy resins.
- 17. The synthetic-resin-clad metallic pipe according to claim 16, wherein the 1st adhesive layer further comprises a setting agent for the epoxy resin, said setting agent being selected from the group consisting of amine setting agents, acid anhydride setting agents and cation setting agents.
- 18. The synthetic-resin-clad metallic pipe according to claim 17, wherein the epoxidation ratio of the epoxidized styrenic thermoplastic elastomer D contained in the 2nd adhesive layer is from 10 to 40%.
- 19. The synthetic-resin-clad metallic pipe according to claim 18, wherein the epoxidation ratio is from 15 to 35%.
- 20. The synthetic-resin-clad metallic pipe according to claim 4 or claim 5, wherein the 1st adhesive layer has a thickness of from 5 to 200 .mu.m and the 2nd adhesive layer has a thickness of from 5 to 500 .mu.m.
- 21. The synthetic-resin-clad metallic pipe according to claim 4 or claim 5, wherein the 1st adhesive layer has a thickness of from 10 to 50 .mu.m and the 2nd adhesive layer has a thickness of from 50 to 300 .mu.m.
- 22. The synthetic-resin-clad metallic pipe according to claim 4, comprising a seven layer structure comprising synthetic resin layer/2nd adhesive layer/1st adhesive layer/metal pipe/1st adhesive layer/2nd adhesive layer/synthetic resin layer.
- 23. The synthetic-resin-clad metallic pipe according to claim 4 or claim 5, wherein the percentage of conjugated double bonds in polymer block B, based on the total of conjugated double bonds, hydrogenated double bonds and epoxidized double bonds is less than 40%.
- 24. The metal/synthetic resin laminate according to claim 4 or claim 5, wherein the synthetic resin layer comprises vinyl chloride resin, olefin resin, polyester resin or polyamide resin.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8-283085 |
Oct 1996 |
JPX |
|
CROSS-REFERENCE TO RELATED APPLICATION
This application is the National Phase entry, under 35 USC 371, of International Application PCT/JP 97/03512, filed Oct. 1, 1997.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
102e Date |
371c Date |
PCT/JP97/03512 |
10/1/1997 |
|
|
6/4/1998 |
6/4/1998 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO98/14323 |
4/9/1998 |
|
|
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
3834009 |
Iida et al. |
Sep 1974 |
|
5393818 |
Masse et al. |
Feb 1995 |
|
5840809 |
Ohtsuka et al. |
Nov 1998 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
5655227 |
May 1981 |
JPX |