DAMPING SHEET

申请公布号：JPH0834089(A)

申请号：JP19940193670

申请日期：1994.07.25

申请公布日期：1996.02.06

申请人：

LINTEC CORP

发明人：OKUDA TAKUYA;SUGIZAKI TOSHIO;KOGURE MASAO;SAITO TAKANORI

分类号：B32B7/12;B32B25/04;C09J4/00;C09J7/02;(IPC1-7):B32B7/12

主分类号：B32B7/12

摘要：<p>PURPOSE:To provide a damping sheet made easy to follow a curved surface to adhere thereto and capable of developing high damping action by providing a viscoelastic layer based on unvulcanized rubber and containing a vulcanizing agent and the release sheet laminated to a self-adhesive layer having curing properties. CONSTITUTION:A damping sheet 1A consists of a laminate 2A formed by laminating a viscoelastic layer 3 to a self-adhesive layer 4 and the release sheet 5 bonded to the self-adhesive layer 4. The viscoelastic layer 4 is characterized by that rubber viscosity [JISK-6300 rotor L-type Mooney viscometer ML1+4 (100 deg.C)] before vulcanization is 10-80 and dynamic shearing elastic modulus after vulcanization is 1X10<6>-1X10<10>dyn/cm<2>. This damping sheet 1A develops excellent damping action and noise absorbing action with respect to an adherend by bonding the same to the adherend to vulcanize the viscoelastic layer 3 and develops high bonding strength by curing the self-adhesive layer 3.</p>

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