Increase in the melting point and the enthalpy of melting of polyamides by a water treatment
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United States of America Patent
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Dec 23, 2008
Grant Date -
Jul 15, 2004
app pub date -
Oct 22, 2003
filing date -
Oct 23, 2002
priority date (Note) -
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Abstract
A method for increasing at least one of the following two parameters of a polyamide: (I) its melting point and (ii) its enthalpy of melting .DELTA.H.sub.m, in which: this polyamide is brought into contact in the solid state with water or with steam at a temperature close to its crystallization temperature T.sub.c for a time long enough to effect this increase; then, the water (or steam) is separated from the polyamide and the polyamide is dried.
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Patent Citation Ranking
- 6 Citation Count
- C08F Class
- 8.84 % this patent is cited more than
- 17 Age
