Thermoplastic molding materials based on polyesters and polyphenylene ethers

• US 5,189,099 A
• Filed: 05/14/1991
• Issued: 02/23/1993
• Est. Priority Date: 05/15/1990
• Status: Expired due to Fees

• Current Assignee: BASF AG (BASF SE)
• Original Assignee: BASF AG (BASF SE)
• Inventors: Arnold-Mauer, Baerbel, Bronstert, Klaus, Baumgartner, Ehrenfried
• Primary Examiner(s): Seidleck, James J.
• Assistant Examiner(s): Hamilton, III, Thomas
• Application Number:
  US07/699,527
• Time in Patent Office: 651 Days
• Field of Search: 525/68, 525/92, 525/132, 525/397, 525/905
• US Class Current: 525/68
• CPC Class Codes: C08L 25/04 Homopolymers or copolymers of styrene
• CPC Class Codes: C08L 2666/02 Organic macromolecular compounds, natural resins, waxes or and bituminous materials
• CPC Class Codes: C08L 2666/14 Macromolecular compounds according to C08L59/00 - C08L87/00; Derivatives thereof
• CPC Class Codes: C08L 67/00 Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain of polyester-amides C08L77/12; of polyester-imides C08L79/08; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 67/02 Polyesters derived from dicarboxylic acids and dihydroxy compounds C08L67/06 takes precedence
• CPC Class Codes: C08L 67/03 the dicarboxylic acids and dihydroxy compounds having the carboxyl- and the hydroxy groups directly linked to aromatic rings
• CPC Class Codes: C08L 71/12 Polyphenylene oxides
• CPC Class Codes: Y10S 525/905 Polyphenylene oxide

Abstract

Thermoplastic molding materials contain

A) from 5 to 94.9% by weight of a polyester,

B) from 5 to 94.9% by weight of a polyphenylene ether,

C) from 0.1 to 50% by weight of a homopolymer or copolymer obtainable by anionic polymerization of a vinylaromatic compound or a diene, or a mixture thereof, carrying primary or secondary amino groups at the chain ends,

D) from 0 to 40% by weight of an impact-modifying rubber,

E) from 0 to 60% by weight of conventional additives and processing assistants.

Claims

1. A thermoplastic molding material containing

A) from 5 to 94.9% by weight of a polyester,

B) from 5 to 94.9% by weight of a polyphenylene ether,

C) from 0.1 to 50% by weight of a homopolymer or copolymer carrying primary or secondary amino groups at the chain ends prepared by anionically polymerizing a vinylaromatic compound or a diene or a mixture thereof, and reacting the resulting living anionic polymer chain with an aziridine or diaziridine and subsequently with a nucleophilic compound,

D) from 0 to 40% by weight of an impact-modifying rubber,

E) from 0 to 60% by weight of conventional additives and processing assistants.

2. A thermoplastic molding material as claimed in claim 1, in which component C) contains on average from 1 to 10 functional amino groups per macromolecule.

3. A thermoplastic molding material as claimed in claim 1, in which component C) has a molecular weight (weight average) of from 500 to 500,000.

4. A thermoplastic molding material as claimed in claim 1, in which component B) contains from 0 to 50% by weight of a vinylaromatic polymer which is different from C).

5. A thermoplastic molding material as claimed in claim 1, containing

from 10 to 89.5% by weight of component A)

from 10 to 89.5% by weight of component B) and

from 0.5 to 30% by weight of component C).

6. A molding obtainable from a thermoplastic molding material as claimed in claim 1.

7. A thermoplastic molding material as claimed in claim 1 wherein the polyester component A) is a polyalklene terephthalate.