Polyamide thermoplastic compositions with improved impact...

Details Polyamide thermoplastic compositions with improved impact... Polyamide thermoplastic compositions with improved impact...

2006-12-19

2006-12-19

Mullis, Jeffrey (Department: 1711)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S178000, C525S179000

Reexamination Certificate

active

07151136

ABSTRACT:
The invention relates to a polyamide-based thermoplastic composition comprising, by weight:50 to 98 parts of a polyamide (A1) nondiamine;0.2 to 40 parts, preferably 0.2 to 9 parts, of a polyamide (A2) diamine, said polyamide (A2) being different from the polyamide (A1) and the ratio by mass (A2)/(A1) being less than 1;1 to 60 parts, preferably 1 to 30 parts, of a reactive impact modifier (B) or of a blend of modifiers comprising at least one reactive impact modifier (B) or of a blend (B′) comprising at least one impact modifier and at least one reactive modifier.It also relates to an impact modifier composition and to the process for the preparation of a thermoplastic composition according to the invention using such an impact modifier composition.

REFERENCES:
patent: 4945129 (1990-07-01), Mason et al.
patent: 5508345 (1996-04-01), Hirata et al.
patent: 2006/0009581 (2006-01-01), Araki et al.
Paul, Polymer Blends, vol. 2, pxii (1978).

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