초록 ▼

Laminates include a thermoplastic substrate layer, a clear coat layer, and a tie layer. The tie layer most preferably includes an adhesive-enhancing effective amount of a maleic anhydride grafted styrenic block copolymer which adhesively bonds the substrate and clear coat layers one to another. Adva

Laminates include a thermoplastic substrate layer, a clear coat layer, and a tie layer. The tie layer most preferably includes an adhesive-enhancing effective amount of a maleic anhydride grafted styrenic block copolymer which adhesively bonds the substrate and clear coat layers one to another. Advantageously, the tie layer includes a blend of the styrenic block copolymer and a diamine, especially 2-methylpentamethylenediamine. The laminate may be employed to manufacture a variety of shaped articles, most preferably automotive trim components.

대표청구항 ▼

1. A laminate comprised of a thermoplastic polyolefin (TPO) substrate layer, a polyvinyl fluoride (PVF) clear coat layer, and a tie layer interposed between said TPO substrate and PVF clear coat layers which is comprised of an adhesive-enhancing effective amount of a linear styrene-ethylene/butylene

1. A laminate comprised of a thermoplastic polyolefin (TPO) substrate layer, a polyvinyl fluoride (PVF) clear coat layer, and a tie layer interposed between said TPO substrate and PVF clear coat layers which is comprised of an adhesive-enhancing effective amount of a linear styrene-ethylene/butylene-styrene backbone with at least about 0.5 wt % of maleic anhydride grafted onto said backbone, said tie layer adhesively bonding said substrate and clear coat layers one to another. 2. The laminate of claim 1, wherein said maleic anhydride is grafted onto said backbone in an amount of at least about 1.5 wt. %. 3. The laminate of claim 1, wherein said maleic anhydride is grafted onto said backbone in an amount of at least about 2.0 wt. %. 4. The laminate of claim 1, wherein said tie layer is further comprised of a diamine. 5. The laminate of claim 4, wherein the diamine is present in an amount up to about 3.0 wt. % based on the total tie layer weight. 6. The laminate of claim 4, wherein the diamine is present in an amount between about 0.5 wt. % to about 1.5 wt. %. 7. The laminate of claim 4, wherein the diamine is 2-methylpentamethylenediamine. 8. A shaped article which includes a laminate according to any one of claims 1 and 2 - 7 . 9. The shaped article of claim 8, the form of an automotive trim component. 10. Automotive trim which comprises as a visible component a laminate comprised of a thermoplastic polyolefin (TPO) substrate layer, a polyvinyl fluoride (PVF) clear coat layer, and a tie layer interposed between said TPO substrate and PVF clear coat layers which is comprised of an adhesive-enhancing effective amount of a linear styrene-ethylene/butylene-styrene backbone with at least about 0.5 wt % of maleic anhydride grafted onto said backbone, said tie layer adhesively bonding said substrate and clear coat layers one to another. 11. The automotive trim of claim 10, wherein the substrate layer includes an amount of a colorant so as to impart a predetermined color to the laminate. 12. The automotive trim of claim 11, wherein said clear coat and tie layers are at least 90% transparent to visible light so that the color of the substrate layer is visible therethrough. 13. The automotive trim of claim 12, wherein said tie layer is at least 70% transparent to visible light so that the color of the substrate layer is visible therethrough.