发明名称 |
SOUND DAMPENING COMPOSITION AND METHOD OF USING THE COMPOSITION |
摘要 |
The invention concerns constrained layer sound damping. A composition and a laminated structure are provided for the reduction of noise coming from housings such as oil pans for automobiles. The composition comprises a rubbery polyurethane, an olefin polymer, and a filler. The laminated structure comprises the housing, the composition, and a sheet metal liner. The composition contains a blowing agent which is activated to provide a single unitary structure which dampens noise. The polyurethane and olefin polymer are thoroughly intermixed with each other, but maintain their separate identities in the blend. |
申请公布号 |
CA1313288(C) |
申请公布日期 |
1993.01.26 |
申请号 |
CA19880579049 |
申请日期 |
1988.09.30 |
申请人 |
SOUNDWICH INC. |
发明人 |
MOORE, DAN T., III;COLLINS, EDWARD A.;WHEELER, MAURICE E. |
分类号 |
F16F15/02;B32B1/02;B32B7/02;C08L75/00;C08L75/04;F01M11/00;F02B77/13;F02F7/00;F02M35/10;F16F7/00;F16M1/02;G10K11/168 |
主分类号 |
F16F15/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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