Thermoplastic elastomer compositions having improved processing properties
AssigneesExxonMobil Chemical Patents Inc., Advanced Customer Systems, L.P.
InventorsThomas C. Erderly, James J. Chludzinski, Armen H. Dekmezian, Angelo A. Montagna, Dennis G. Peiffer, Maria D. Ellul, Donald R. Hazelton, Barry M. Rosenbaum
Life of this patent
Estimating the term…
Abstract
Thermoplastic elastomers having improved processability are prepared by incorporating one or more organic sulfate or sulfonate salts into blends of thermoplastic polymers and olefinic rubber and melt processing the mixture. The rubber component of the mixture is preferably at least partially cured.
Claims27
A thermoplastic elastomer composition comprising a blend of:
- a. a thermoplastic polymer;
- b. a cross-linked olefinic rubber;
- and
- c. from about 0.005 to 5 wt %, based on the polymeric content of said blend, of at least one sulfate or sulfonate salt having the formula (RSOx) M wherein X is 3 or 4, R is an organic aliphatic radical containing from 6 to 30 carbon atoms and M is a cation selected from the group consisting of alkali metals, alkaline earth metals and ammonium.
A process for forming a composition comprising melt blending a thermoplastic elastomer composition comprising a blend of:
- a. a thermoplastic polymer;
- b. a cross-linked olefinic rubber;
- and
- c. from about 0.005 to 5 wt %, based on the polymeric content of said blend, of at least one sulfate or sulfonate salt having the formula (RSOx) M wherein X is 3 or 4, R is an organic aliphatic radical containing from 6 to 30 carbon atoms and M is a cation selected from the group consisting of alkali metals, alkaline earth metals and ammonium.
A process for forming a composition comprising melt blending a thermoplastic elastomer composition comprising:
- a. a thermoplastic polymer;
- b. an olefinic rubber;
- and
- c. from about 0.005 to 5 wt %, based on the polymeric content of said composition, of at least one sulfate or sulfonate salt having the formula (RSOx) M wherein X is 3 or 4, R is an organic aliphatic radical containing from 6 to 30 carbon atoms and M is a cation selected from the group consisting of alkali metals, alkaline earth metals and ammonium;
- and subjecting said blended composition to crosslinking conditions to form a crosslinked composition.
Dependencies are inferred from the claim text.