Patent · US Expired

Thermoplastic molding compositions having improved _flexibility and cold impact strength based upon polyamides from _omega-aminocarboxylic acids and/or lactams having at least 10 carbon atoms

US4218549A · kind A · utility

10Cited by

3References

6Claims

0Family size

Assignee

Chemische Werke Huels Aktiengesellschaft · US

Inventors

Hans Jadamus · Marl, DE
Salih Mumcu · Marl, DE
Klaus Burzin · Marl, DE
Rainer Feldmann · Marl, DE
Roland Feinauer

Key dates

Filing date	Mar 21, 1978
Grant date	Aug 19, 1980
Priority date	—
Expiry date	Mar 21, 1998

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L77/12
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Thermoplastic molding compositions having improved flexibility and cold impact strength, comprising a mixture of: PA1 I. at least one polyamide from omega-aminocarboxylic acids or lactams having at least 10 carbon atoms; and PA1 II. at least one polyether ester amide with units of the starting components randomly distributed in the polymer chain produced from: PA2 (a) omega-aminocarboxylic acid or lactams having at least 10 carbon atoms, PA2 (b) alpha, omega-dihydroxy(polytetrahydrofuran) having a molecular weight of between 160 and 3,000 and PA2 (c) a dicarboxylic acid. The mixture contains about 95 to 20 percent by weight of component I and about 5 to 80 percent by weight of component II.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.