Vibration damping, resinous, open cell cellular bodies
US6458863B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1999 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Dec 9, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2224/0225
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A vibration damping, resinous, open cell cellular body is disclosed. The body has a base material thereof which consists essentially of a mixture of a tri-block copolymer as a combination of polystyrene and vinyl-polyisoprene and an ethylene series resin. In a method of manufacture, the mixture is blended and kneaded with a foaming agent and a crosslinking agent to form a foamable and crosslinkable composition. The composition is heated in a non-airtight mold to foam, thereby forming a cellular body with cells therein. The cellular body is then mechanically deformed to cause cells therein to be interconnected, thereby producing the open cell cellular body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.