Novel sulfur-containing polyetherimides

Details Novel sulfur-containing polyetherimides Novel sulfur-containing polyetherimides

1983-01-10

1984-01-31

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528 26, 528125, 528126, 528128, 528185, 528188, 528208, C08G 7310

Patent

active

044291027

ABSTRACT:
Novel polyetherimides containing sulfone units such as those derived from bis(3,4-dicarboxyphenyl) sulfone dianhydride, as well as units derived from an ether anhydride such as 2,2-bis[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride, may be prepared by the reaction of a mixture of said dianhydrides with diamines such as m-phenylene diamine. The polyetherimides have high thermal stability and solvent resistance.

REFERENCES:
patent: 3422064 (1969-01-01), Gall
patent: 3847867 (1974-11-01), Heath et al.
patent: 3983093 (1976-09-01), Williams et al.
patent: 4048142 (1977-09-01), Takeoshi
patent: 4281100 (1981-07-01), Takekoshi

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