Melt strength thermoplastic elastomers and methods for making same
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United States of America Patent
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Aug 5, 2003
Grant Date -
Jun 5, 2003
app pub date -
Nov 13, 2001
filing date -
Nov 13, 2001
priority date (Note) -
Expired
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Abstract
The melt strength is increased and the gloss level is reduced in olefinic TPE compositions through the addition of sufficient amounts of free radical generators (A) and co-curative agents (B). The free radical generators (A) include peroxides, organic peroxides, the persulfates, and the diazo compounds, and mixtures thereof. The co-curative agents (B) includes metal salts of alpha, beta-unsaturated carboxylic acids and alpha, beta-unsaturated carboxylic acids where the pending acid group has been neutralized, or mixtures thereof, and the metals for forming the metal salts of co-curative agent (B) include zinc, lithium, calcium, magnesium, sodium or aluminum, or mixtures thereof.
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