Low pressure injection moldable compositions
US4313867A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 5, 1981 |
| Grant date | Feb 2, 1982 |
| Priority date | — |
| Expiry date | Jan 5, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L53/025
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to injection moldable type elastomeric compositions having improved physical and rheological properties. The compositions used for elastomeric articles include a styrene-ethylene/butylene-styrene block copolymer or compounds thereof, a neutralized sulfonated EPDM terpolymer and a non-polar process oil; and optionally a polypropylene thermoplastic resin. These blend compositions can be readily processed due to their superior rheological properties on conventional plastic fabrication equipment, especially on low pressure injection molding equipment into elastomeric articles having excellent physical properties and desirable rubbery characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.