Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2005-04-26
2005-04-26
Hightower, P. Hampton (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C528S170000, C528S312000, C528S322000, C528S323000, C528S328000, C528S332000, C528S335000, C528S336000, C528S339000, C528S340000, C528S347000, C525S418000, C525S419000, C525S420000, C525S422000, C525S432000, C524S600000, C524S602000, C524S606000, C428S357000, C428S364000, C428S394000, C428S395000, C428S474400, C264S176100
Reexamination Certificate
active
06884865
ABSTRACT:
The invention concerns copolyamides obtained by using multifunctional monomers. It consists in using at least one multifunctional monomer comprising at least three reactive functions and at least another multifunctional monomer, in amounts such that the terminal group concentrations are balanced. The copolyamides are more particularly high viscosity copolyamides. The invention also concerns compositions based on said copolyamides.
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Di Silvestro Giuseppe
Speroni Franco
Yuan Cuiming
Zhang Haichun
Burns Doane Swecker & Mathis L.L.P.
Hampton Hightower P.
Rhodia Engineering Plastics S.R.L.
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