Fibers from copolyimides and polymidies derived from tetramethyl

Details Fibers from copolyimides and polymidies derived from tetramethyl Fibers from copolyimides and polymidies derived from tetramethyl

1982-06-29

1984-02-14

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528128, 528172, 528188, 528189, 528208, 528220, 528229, 528352, 528353, C08G 7310

Patent

active

044317913

ABSTRACT:
Novel glass and graphite filled copolyimides and polyimides useful as engineering plastics are prepared. Also fibers and oriented fibers from the copolyimides and polyimides derived from tetramethylcyclobutane 1,2,3,4-tetracarboxylic dianhydride and diamines are disclosed.

REFERENCES:
patent: 4014832 (1977-03-01), Suzuki et al.
patent: 4183835 (1980-01-01), Yamaguchi et al.

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