Acrylic sol for a sound insulating underbody coating
US6559193B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 2, 2001 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Jul 21, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R13/0861
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is an acrylic sol for a sound insulating underbody coating. It includes acrylic polymer fine particles, a plasticizer, a filler, a plasticizer, a blocking type urethane resin, a curing agent and a foaming agent. Since it includes the acrylic polymer particles as a major constituent unit, it does not generate a hydrogen chloride gas and dioxins when it is burned. Moreover, since the paint film resulting from the acrylic sol has a net-shaped structure by the cross-linkage reactions of the urethane resin, and since the bulkiness of the paint film is increased by the foaming agent, it has a good cold resistance and adhesion property toward automotive steel plates, and effects a superb chipping resistance and sound insulating performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.