US 2020/0399468 A1Published application

Polyamide composition for liquid-assisted injection moulding applications

OwnerHuanbing WANGinventor

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Abstract

The disclosure relates to a polyamide composition including (i) at least one aliphatic polyamide comprising repeating units derived from the polycondensation of hexamethylenediamine and adipic acid; (ii) at least one semi-aromatic polyamide comprising repeating units derived from the polycondensation of hexamethylenediamine, adipic acid and at least one aromatic dicarboxylic acid; (iii) at least one fibrous filler; (iv) at least one particulate filler; (v) at least one heat stabilizer; and (vi) at least one further additive. The polyamide composition exhibits excellent processing properties in the preparation of articles using liquid-assisted injection moulding processes.

Claims15

Dependent claims

A polyamide composition comprising:

(i) at least one aliphatic polyamide comprising repeating units derived from a polycondensation of hexamethylenediamine and adipic acid;
(ii) at least one semi-aromatic polyamide comprising repeating units derived from a polycondensation of hexamethylenediamine, adipic acid and at least one aromatic dicarboxylic acid;
(iii) at least one fibrous filler;
(iv) at least one particulate filler;
(v) at least one heat stabilizer;
(vi) at least one further additive;
(vii) optionally at least one polyamide selected from homopolymers of ϵ-caprolactam (PA6), copolymers of ϵ-caprolactam with hexamethylenediamine and terephthalic acid and copolymers of ϵ-caprolactam with hexamethylenediamine and isophthalic acid;
and
(viii) optionally at least one polyamide selected from homopolymers of hexamethylenediamine and sebacic acid (PA6.10).

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/969,433Filed 13 Feb 2019
Priority: CN PCT/CN2018/07685714 Feb 2018
Published: 24 Dec 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification21 codes

C08L 77/06
Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain ; Compositions of derivatives of such polymers:…
B29C 45/1704
Introducing an auxiliary fluid into the mould: the fluid being introduced into the interior of the injected material which is still in a molten…
C08G 69/06
Preparatory processes: solid state polycondensation
C08G 69/14
Derived from amino-carboxylic acids: lactams

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