Acrylate-based sound damping material and method of preparing same
US7973106B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2006 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Nov 16, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2605/08
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A sound damping material for use in a sound damping laminate having one or more rigid layers, such as those used in the automotive industry. The sound damping material is preferably a viscoelastic material that damps or otherwise inhibits the transmission of vibrational or acoustical energy through the laminate, and also acts as an adhesive for bonding the rigid layers together. In its cured form, the sound damping material layer can include an acrylate-based polymer matrix, and one or more of the following components: a precipitated phase, a viscous phase, and miscellaneous constituents. The acrylate-based polymer matrix is the reaction product of at least one acrylate-based monomer, such as isobornyl acrylate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.