申请人:Jain Sachin
公开号:US20140303311A1
公开(公告)日:2014-10-09
The present invention relates to thermoplastic molding compositions comprising:
A) from 80 to 99.5% by weight, based on components A and B, of a polyamide A;
B) from 0.5 to 20% by weight, based on components A and B, of a copolyester B having an intrinsic viscosity according to DIN 53728 of from 150 to 320 cm
3
/g comprising:
B
1
) from 40 to 80% by weight, based on the total weight of components B
1
and B
2
, of at least one succinic, adipic, azelaic, sebacic or brassylic acid, or their ester-forming derivatives, or a mixture thereof,
B
2
) from 20 to 60% by weight, based on the total weight of components B1 and B2, of terephthalic acid, or its ester-forming derivatives, or a mixture thereof,
B
3
) from 98 to 102 mol %, based on components B
1
and B
2
, of 1,4-butanediol or 1,3-propanediol, or a mixture thereof, as diol component,
B
4
) from 0 to 1% by weight, based on component B, of a branching agent,
B
5
) from 0 to 2% by weight, based on component B, of a chain extender,
B
6
) from 0 to 2% by weight, based on component B, of further additional materials;
C) from 0 to 60% by weight, based on components A to D, of a fibrous reinforcing material C;
D) from 0 to 10% by weight, based on components A to D, of further additional materials D.
The invention further relates to a process for increasing the notched impact resistance in polyamides, and also to the use of the abovementioned molding compositions for producing fibers, foils, and moldings, and also to fibers, foils, and moldings obtainable from said molding compositions.
本发明涉及热塑性模塑组合物,包括:A)占A和B组分的重量的80至99.5%的聚酰胺A;B)占A和B组分的重量的0.5至20%的共聚酯B,其具有根据DIN 53728测量的内禀粘度为150至320 cm3 / g,包括:B1)占B1和B2组分的总重量的40至80%,至少包括琥珀酸、己二酸、非二酸、癸二酸或十一二酸或其酯形成衍生物或其混合物;B2)占B1和B2组分的总重量的20至60%,至少包括对苯二甲酸或其酯形成衍生物或其混合物;B3)占B1和B2组分的摩尔百分比为98至102%,作为二元醇组分的1,4-丁二醇或1,3-丙二醇或其混合物;B4)占组分B的0至1%的重量的支化剂;B5)占组分B的0至2%的重量的链延长剂;B6)占组分B的0至2%的重量的进一步附加物料;C)占A至D组分的重量的0至60%的纤维增强材料C;D)占A至D组分的重量的0至10%的进一步附加物料D。本发明还涉及一种提高聚酰胺缺口冲击强度的方法,以及上述模塑组合物用于生产纤维、薄膜和模具的用途,以及从该模塑组合物获得的纤维、薄膜和模具。