Free-flowing polyamide molding compounds and blends

Details Free-flowing polyamide molding compounds and blends Free-flowing polyamide molding compounds and blends

1989-09-05

1992-04-07

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524293, 524299, 524447, 524449, 524451, 524494, 524496, 524497, C08K 520

Patent

active

051029359

ABSTRACT:
The invention relates to new, free-flowing polyamide molding compounds and blends, characterized in that they are prepared by mixing of polyamides known per se in the melt with low molecular weight, liquid-crystalline esters and/or ester amides corresponding to formula (I) and/or liquid-crystalline, oligomeric esters and/or ester amides corresponding to formula (II) and, optionally, other additives, at least one polymeric blending component being used as a further additive in the case of polyamide blends, and to the use of these liquid-crystalline (LC) additives I and/or II as flow promoters in polyamide molding compounds and blends and to a process for the production of the new polyamide molding compounds and blends. The invention also relates to the new oligomeric esters and/or ester amides corresponding to formula (II).

REFERENCES:
patent: 4451611 (1984-06-01), Cincotta et al.
patent: 4611025 (1986-09-01), Akkapeddi et al.
patent: 4650836 (1987-09-01), George et al.
patent: 4791187 (1988-03-01), Suling et al.

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