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Thermoplastic molding materials based on polyamide blends
| Details |
Inventors: Koch, Eckhard M.; Heinz, Gerhard; Goetz, Walter; Pipper, Gunter;
Assignee: BASF Aktiengesellschaft (Ludwigshafen, DE)
Primary Examiner: Carrillo; Ana L.
Assistant Examiner:
Attorney, Agent or Firm: Oblon, Spivak, McClelland, Maier & Neustadt
Thermoplastic molding materials contain, as essential components, A) 20-98% by weight of a partly aromatic amide copolymer essentially consisting of a.sub.1) 40-90% by weight of units derived from terephthalic acid and hexamethylenediamine, a.sub.2) 0-50% by weight of units derived from .epsilon.-caprolactam and a.sub.3) 0-60% by weight of units derived from adipic acid and hexamethylenediamine, components a.sub.2) and/or a.sub.3) accounting altogether for not less than 10% by weight of the total number of units, B) 2-80% by weight of a partly crystalline thermoplastic polyamide which differs from A) and furthermore C) 0-50% by weight of an elastomeric impact modifier and D) 0-60% by weight of fibrous or particulate fillers or a mixture of these. |
|
DETAILED DESCRIPTION We claim: 1.
A thermoplastic molding material containing, as essential components, A) 20-98% by weight of a partly aromatic amide copolymer essentially consisting of a.
sub.
1) 60-75% by weight of units derived from terephthalic acid and hexamethylenediamine, and a.
sub.
2) 25-40% by weight of units derived from .
epsilon.
-caprolactam, B) 2-80% by weight of a partly crystalline thermoplastic polyamide which differs from A) and furthermore C) 0-50% by weight of an elastomeric impact modifier and D) 0-50% by weight of fibrous or particulate fillers or a mixture of these.
2.
A thermoplastic molding material as claimed in claim 1, wherein the partly aromatic amide copolymer A) has a triamine content of less than 0.
5% by weight.
3.
A thermoplastic molding material as claimed in claim 1, wherein the polyamide B) is poly-.
epsilon.
-caprolactam, polytetramethyleneadipamide or polyhexamethyleneadipamide or a mixture thereof.
4.
A molding obtained from a thermoplastic molding material as claimed in claim 1 as an essential component.
5.
A thermoplastic molding material as claimed in claim 1, wherein the partly aromatic amide copolymer A) has a melting point of from 260.
degree.
C.
to above 300.
degree.
C.
Description:
The present invention relates to thermoplastic molding materials containing, as essential components, A) 20-98% by weight of a partly aromatic amide copolymer essentially consisting of a.
sub.
1) 40-90% by weight of units derived from terephthalic aid and hexamethylenediamine, a.
sub.
2) 0-50% by weight of units derived from .
epsilon.
-caprolactam and a.
sub.
3) 0-60% by weight of units derived from adipic acid and hexamethylenediamine, components a.
sub.
2) and/or a.
sub.
3) accounting altogether for not less than 10% by weight of the total number of units, B) 2-80% by weight of a partly crystalline thermoplastic polyamide which differs from A) and furthermore C) 0-50% by weight of an elastomeric impact modifier and D) 0-60% by weight of fibrous or particulate fillers or a mixture of these
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