Flexible semiaromatic polyamides with a low moisture uptake

Details Flexible semiaromatic polyamides with a low moisture uptake Flexible semiaromatic polyamides with a low moisture uptake

2008-06-09

2009-12-01

Woodward, Ana L (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C428S474400, C524S538000, C525S066000, C525S179000, C525S183000, C525S184000

Reexamination Certificate

active

07625972

ABSTRACT:
The present invention relates to a flexible semiaromatic polyamide composition with a low moisture uptake, made up by weight, the total being 100:A) 60 to 99.5% (preferably 70 to 93%) of at least one copolyamide of formula X/Y,Ar in which there are between 0.5 and 0.7 mol of X per 1 mol of Y, and in whichY denotes the residues of 1,10-decanediamine,Ar denotes the residues of terephthalic acid,X denotes the residue of aminoundecanoic acid NH2—(CH2)10—COOH, the unit Y,I residue from the condensation of the diamine (Y) with isophthalic acid, wherein said composition is a flexible semiaromatic copolyamide;B) 0.5 to 40% (preferably 7 to 30%) of at least one product chosen from plasticizers, nanofillers, polyolefins, crosslinked polyolefins and additives.

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patent: 2001/247673 (2001-09-01), None

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