Glass laminates for reduction of sound transmission

1. A sound-damping laminate comprising a polyester polymer layer positioned between polymer layer 1 and polymer layer 2, wherein the polymer layer 1 is an ionoplast resin (ionomer) layer and the polymer layer 2 is a layer selected from the group consisting of polyurethanes layer; ethylene vinyl acetate copolymer layer; and ethylene acid copolymer layer, wherein the polyester layer contains a surface coated with a polyallylamine-based primer in contact with at least one of the polymer layer 1 or polymer layer 2, and wherein the laminate has a loss factor of at least about 0.080 measured at 20° C. in the range of 50 to 10,000 Hz.

2. The laminate of claim 1 wherein the polymer layer 2 is a polyurethanes layer.

3. The laminate of claim 1 wherein the polymer layer 2 is an ethylene vinyl acetate copolymer layer.

4. The laminate of claim 1 wherein the polymer layer 2 is an ethylene acid copolymer layer.

5. The laminate of claim 1 further comprising a glass layer adhered to at least one of the outside of the polymer layer 1 and the polymer layer 2.

6. The laminate of claim 1 further comprising a glass layer on the outside of the polymer layer 1 and a second glass layer on the outside of the polymer layer 2.

7. The laminate of claim 1 wherein the laminate has an adhesive strength of at least about 10 lb/in 2 .

8. The laminate of claim 1 , wherein the laminate has not been flame treated.

9. The laminate of claim 1 , further comprising a glass layer adhered to at least one of the outside of the polymer layer 1 and the polymer layer 2.

10. The laminate of claim 1 , wherein the laminate has a loss factor of at least about 0.15 measured at 20° C. in the range of 50 to 10,000 Hz.

11. The laminate of claim 1 wherein the loss factor is at least about 0.15 throughout the range of from 50 to 10,000 Hz.

12. An article comprising the laminate of claim 1 .

13. The article of claim 12 wherein the article is an automobile.

14. The article of claim 13 wherein the laminate is a windshield, a side-lite, a moon-roof, or a sun-roof.

15. The article of claim 12 wherein the article is a building.

16. The article of claim 15 wherein the laminate is a window, door, floor, ceiling, stairs, wall, partition, or other structural building component.

17. The article of claim 12 wherein the laminate further comprises a glass layer adhered to at least one of the outside of the polymer layer 1 and the polymer layer 2.

18. The article of claim 17 wherein the laminate has an adhesive strength of at least about 10 lb/in 2 and a loss factor of at least about 0.15 measured at 20° C. in the range of 50 to 10,000 Hz.

19. A sound-damping laminate comprising a polyester polymer layer positioned between polymer layer 1 and polymer layer 2, wherein the polymer layer 1 is an ionoplast resin (ionomer) layer and the polymer layer 2 is a layer selected from the group consisting of polyurethanes layer; ethylene vinyl acetate copolymer layer; and ethylene acid copolymer layer, wherein the polyester layer contains a surface coated with a polyallylamine-based primer in contact with the ionoplast resin (ionomer) layer, and wherein the laminate has a loss factor of at least about 0.080 measured at 20° C. in the range of 50 to 10,000 Hz.

20. A sound-damping laminate comprising a polyester polymer layer positioned between polymer layer 1 and polymer layer 2, wherein the polymer layer 1 is an ionoplast resin (ionomer) layer and the polymer layer 2 is a layer selected from the group consisting of polyurethanes layer; ethylene vinyl acetate copolymer layer; and ethylene acid copolymer layer, wherein the polyester layer is coated on both surfaces with a polyallylamine-based primer and is in contract with the polymer layer 1 and the polymer layer 2, and wherein the laminate has a loss factor of at least about 0.080 measured at 20° C. in the range of 50 to 10,000 Hz.

21. The laminate of claim 20 wherein the laminate has an adhesive strength of at least about 10 lb/in 2 .