Novel ionic polymer compositions
US4014831A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 1975 |
| Grant date | Mar 29, 1977 |
| Priority date | — |
| Expiry date | May 21, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/44
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The instant invention relates to a method for making processable ionic polymer compositions which are characterized as being processable at high temperatures, for example, 200.degree. C, while retaining adequate physical properties at both room temperatures and elevated temperatures which are below the processing temperature, for example, up to 100.degree. C and more. In this method, an ionic polymer comprising an elastomeric or plastic backbone and pendant acid groups is combined with a first neutralizing agent having two components. One component of said neutralizing agent is a metal or ammonium type moiety which combines with the pendant acid groups as a metal or ammonium salt thereof; the other component of neutralizing agent takes up the hydrogen ion present in the pendant acid groups and is converted into a preferential plasticizer for said ionomer. The preferential plasticizer acts to disrupt the ionic association of the metal or ammonium salt groups, thus allowing the ionic polymer to act as a noncrosslinked material. When the composition is in this state, it can be compounded with oils, fillers, etc. An ionic composition in this state is also characterized as having poor p…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.