Vibration-damping thermoplastic resin composition and molded article therefrom
US6503974B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 13, 2001 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Aug 13, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L101/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A vibration-damping thermoplastic resin composition comprising (a) 50 to 90 wt % of an amorphous thermoplastic resin (component A) having a loss tangent (tan &dgr;) value of 0.01 to 0.04 and a deflection temperature under load of not lower than 120° C. and (b) 50 to 10 wt % of a methyl methacrylate resin (component B), wherein an article molded from the resin composition has the following physical properties (1) to (4), i.e., (1) a loss factor of 0.04 to 0.08, (2) a water absorption of not higher than 0.30 wt %, (3) a specific gravity of 1.05 to 1.3, and (4) a deflection temperature under load of 110 to 170° C.; and an article molded therefrom. According to the present invention, a thermoplastic resin composition and an article molded therefrom which are excellent in vibration dampability as well as dimensional accuracy, rigidity and heat resistance and are light in weight, is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.