Rhodia Operations

Performance Polyamides, Sas

Elodie Seignobos

Jin-Kyung Jung

Yeong-Chool Yu

The present invention provides a polyamide composition comprising (a) at least one polyamide mixture formed from (i) at least one polyamide 6,6, the amount of amine end groups (AEG) being greater than the amount of carboxylic acid end groups (CEG); and (ii) at least one high chain-length polyamide; (b) at least one reinforcing filler; (c) at least one heat stabilizer; (d) aluminum stearate; and optionally (e) at least one additive. The polyamide composition can be advantageously used to produce articles exhibiting enhanced chemical resistance, notably CaClsalt crack resistance, such as radiator end tank in an automobile.

Polyamide compositions comprising a blend of polyamide 6,6 and at least one high chain-length polyamide, and A1 stearate, use thereof, and articles obtained therefrom

The present invention provides polyamide compositions comprising (a) at least one polyamide mixture; (b) at least one reinforcing filler; (c) at least one heat stabilizer; and (d) at least one ionic lubricant, wherein the (a) at least one polyamide mixture is formed from (i) a polyamide 6,6, the amount of AEG being greater than the amount of CEG, and (ii) a blend of a first high chain-length polyamide having viscosity number (VN) of Xand a second high chain-length polyamide having VN of X, Xbeing greater than X. The polyamide composition can be advantageously used to produce articles exhibiting enhanced chemical resistance, notably CaClsalt crack resistance, such as radiator end tank in an automobile.

Polyamide compositions comprising a polyamide 6,6 and a blend of high chain-length polyamides, use thereof, and articles obtained therefrom

The invention pertains to a dish support rack having outstanding resistance to chemically harsh environments, and possessing improved mechanical properties, said dish support rack comprising a metal wire frame coated with a polyamide composition [composition (C)] comprising: &#x2014;more than 50% wt of a polyamide [polyamide (A), herein after], more than 50% moles of recurring units of said polyamide complying with formula: &#x2014;HN&#x2014;(CH)&#x2014;NH&#x2014;C(O)&#x2014;(CH)&#x2014;C(O)&#x2014; [recurring units (R)], and, optionally: &#x2014;up to 10% wt of conventional filler(s) and/or additive(s), and to a method for its manufacture.

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Saint Genis Laval, France

Elodie Seignobos