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High stretch elastomeric pre-stretched tubes

  • US 5,080,942 A
  • Filed: 05/23/1990
  • Issued: 01/14/1992
  • Est. Priority Date: 05/23/1990
  • Status: Expired due to Fees
First Claim
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1. An article comprising an elastomeric tubular member supported in a stretched condition on an easily removable core, said tubular member comprising:

  • (a) about 10 to 50 weight percent of an oil-extended ethylene propylene diene monomer rubber,(b) about 5 to 25 weight percent of an elastomer selected from the group consisting of a nonoil-extended ethylene propylene diene monomer rubber and nonoil-extended ethylene propylene(c) about 5 to 15 weight percent of an extender,(d) about 10 to 30 weight percent of a processing oil,(e) about 2 to 30 weight percent ofsilica, and(f) up to about 30 weight percent of a polymeric plasticizer.

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