Elastomer composition and methods for using same
US7045085B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 15, 2002 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Oct 4, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/44
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A bench-top molding process is disclosed in combination with an apparatus designed to heat a molding composition. In accordance with the present invention, the molding composition contains a thermoplastic elastomer and a plasticizer. The thermoplastic elastomer can be, for instance, a styrene-ethylene/butylene-styrene block copolymer. The plasticizer, on the other hand, can be mineral oil. The block copolymer can be chosen in conjunction with the plasticizer so as to have a bubble rise rate when heated equal to at least one half of the bubble rise rate of glycerin at room temperature. By having a bubble raise rate in the above range, it has been found that no significant amounts of air will be trapped in the molding composition when formed into a casting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.