Acoustic damping compositions
View Patent ↗An acoustic damping composition includes a binder resin including an addition polymer having a carboxylic functional group and a urethane component. The acoustic damping composition has a Mode 1 Damping Parameter of at least 0.45.
1. An acoustic damping composition comprising:
a binder resin including an addition polymer having a carboxylic functional group; and
a modifying resin comprising a urethane component;
wherein the acoustic damping composition has a Mode 1 Damping Parameter of at least 0.45.
2. The acoustic damping composition of claim 1 , wherein the Mode 1 Damping Parameter is at least 0.5.
3. The acoustic damping composition of claim 2 , wherein the Mode 1 Damping Parameter is at least 0.55.
4. The acoustic damping composition of claim 1 , wherein the acoustic damping composition has a Mode 2 Damping Parameter of at least 0.27.
5. The acoustic damping composition according to claim 4 , wherein the Mode 2 Damping parameter is at least 0.30″.
6. The acoustic damping composition of claim 1 , wherein the acoustic damping composition has a Mode 3 Damping Parameter of at least 0.27.
7. The acoustic damping composition of claim 1 , wherein the acoustic damping composition has a Mode 1 Damping Performance of at least 20%.
8. The acoustic damping composition of claim 1 , wherein the acoustic damping composition has a Mode 2 Damping Performance of at least 20%.
9. The acoustic damping composition of claim 1 , wherein the acoustic damping composition has an STC Performance of at least 10.
10. The acoustic damping composition of claim 1 , wherein the acoustic damping composition has a haze of at least 30%.
11. The acoustic damping composition of claim 10 , wherein the haze is at least 50%.
12. The acoustic damping composition of claim 1 , wherein the binder resin and the urethane component are included in a water-based emulsion.
13. The acoustic damping composition of claim 1 , wherein the urethane component and the binder resin form separate phases.
14. The acoustic damping composition of claim 1 , wherein the binder resin includes an acrylic component.
15. A construction panel comprising:
first and second rigid panels; and
an acoustic damping composition disposed between the first and second rigid panels, the acoustic damping composition comprising a binder resin including an addition polymer having a carboxylic functional group and a modifying resin comprising a urethane component;
wherein the acoustic damping composition has a Mode 1 Damping Parameter of at least 0.45.
16. The construction panel of claim 15 , wherein the first and second rigid panels include drywall.
17. The construction panel of claim 15 , wherein the Mode 1 Damping Parameter is at least 0.5.
18. The construction panel of claim 15 , wherein the acoustic damping composition has a Mode 2 Damping Parameter of at least 0.27.
19. The construction panel of claim 15 , wherein the acoustic damping composition has a Mode 3 Damping Parameter of at least 0.27.
20. An acoustic damping composition comprising:
a binder resin including an addition polymer having a carboxylic functional group; and
a modifying resin comprising a urethane component;
wherein the acoustic damping composition has a Mode 1 Damping Performance of at least 20%.