Thermoplastic elastomer blend composition
First Claim
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1. A curable thermoplastic elastomeric composition comprising:
- (a) a polyether ester elastomer having a polytrimethylene ether ester soft segment and a polyethylene ester hard segment;
(b) a nucleating agent selected from the group consisting of an alkali metal salt, an alkaline earth metal salt and mixtures thereof;
(c) a crosslinkable poly(meth)acrylate rubber; and
(d) a crosslinking system to crosslink the rubber.
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Abstract
This invention relates to thermoplastic elastomer compositions comprising blends of polyether ester elastomers and crosslinkable poly(meth)acrylate rubbers, and the manufacture and use thereof in, for example, shaped or molded rubber articles.
40 Citations
20 Claims
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1. A curable thermoplastic elastomeric composition comprising:
- (a) a polyether ester elastomer having a polytrimethylene ether ester soft segment and a polyethylene ester hard segment;
(b) a nucleating agent selected from the group consisting of an alkali metal salt, an alkaline earth metal salt and mixtures thereof;
(c) a crosslinkable poly(meth)acrylate rubber; and
(d) a crosslinking system to crosslink the rubber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
- (a) a polyether ester elastomer having a polytrimethylene ether ester soft segment and a polyethylene ester hard segment;
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17. A melt processable thermoplastic elastomeric composition comprising:
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(a) a continuous phase comprising;
(i) polyether ester elastomer having a poly-trimethylene ether ester soft segment and a polyethylene ester hard segment, and (ii) a nucleating agent; and(b) a crosslinked poly(meth)acrylate rubber disperse phase. - View Dependent Claims (18)
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19. A process for manufacturing a melt processable thermoplastic elastomeric composition comprising the steps of:
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(a) providing a cross-linkable poly(meth)acrylate rubber, a crosslinking system in an amount effective to crosslink the poly(meth)acrylate rubber, a polyether ester elastomer having a polytrimethylene ether ester soft segment and a polyethylene ester hard segment, and a nucleating agent in an amount effective to lower the crystallization time of the polyether ester elastomer; (b) forming a mixture of the cross-linkable poly(meth)acrylate rubber, the polyether ester elastomer, the nucleating agent and the crosslinking system; (c) cross-linking the cross-linkable poly(meth)acrylate rubber in the mixture using the crosslinking system; and (d) recovering the melt processable thermoplastic elastomeric composition comprising the polyether ester elastomer and nucleating agent as a continuous phase and the crosslinked poly(meth)acrylate rubber as a disperse phase. - View Dependent Claims (20)
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Specification