Polyetherimides with resistance to high temperatures

Details Polyetherimides with resistance to high temperatures Polyetherimides with resistance to high temperatures

1997-07-14

1999-06-29

Woodward, Ana

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

Synthetic resins

From carboxylic acid or derivative thereof

528350, C08G 7310

Patent

active

059170050

ABSTRACT:
Polyetherimides are prepared by conventional means from hindered diamines such as the isomeric methyl-4,6-diethyl-1,3-phenylenediamines and bis(2-chloro-4-amino-3,5-diethylphenyl)methane. They have unusually high glass transition temperatures.

REFERENCES:
patent: 4443591 (1984-04-01), Schmidt et al.
patent: 5189115 (1993-02-01), Melquist et al.
patent: 5608013 (1997-03-01), Matsuura et al.
Ulery et al., "Highly Soluble Polyimides from Sterically Hindered Diamines", Polym. Prep., 38, 182-3 (1997).

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