Polymer emulsions for sound damping applications
AssigneeBase SE
InventorsAkbar S. Hussaini, Senthilkumar RENGASAMY
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Abstract
The present disclosure provides a polymer emulsion comprising a first polymer with a first glass transition temperature (Tg1); a second polymer with a second glass transition temperature (Tg2); a third polymer with a third glass transition temperature (Tg3); and a fourth polymer with a fourth glass transition temperature (Tg4), wherein the first, second, third, and fourth polymers are not copolymerized. The polymer emulsion provides a sound damping loss factor of at least 0.1 over a temperature from 10° C. to 50° C. at 200 Hz.
Claims14
-13. (canceled)
A polymer emulsion comprising:
- a first polymer with a first glass transition temperature (Tg1);
- a second polymer with a second glass transition temperature (Tg2);
- a third polymer with a third glass transition temperature (Tg3);
- and
- a fourth polymer with a fourth glass transition temperature (Tg4), wherein the first, second, third, and fourth polymers are not copolymerized, the weight ratio of the first polymer to the second polymer to the third polymer to the fourth polymer is W:X:Y:Z, and W, X, Y, and Z independently may be from 0.5 to 2, and the polymer emulsion provides a sound damping loss factor of at least 0.1 over a temperature from 10° C. to 50° C. at 200 Hz.
A method of producing a polymer emulsion comprising:
- combining a first polymer, a second polymer, a third polymer, and a fourth polymer in a weight ratio of W:X:Y:Z respectively, wherein W, X, Y, and Z are independently from 0.5 to 2, forming a mixture of polymers;
- adding an emulsion agent to the mixture of polymers;
- and
- mixing the emulsion agent and mixture of polymers to form the polymer emulsion, wherein the polymer emulsion provides a sound damping loss factor of at least 0.1 over a temperature from 10° C. to 50° C. at 200 Hz.
Dependencies are inferred from the claim text.