Injection moldable polyetherimide oligomers and method for makin

Details Injection moldable polyetherimide oligomers and method for makin Injection moldable polyetherimide oligomers and method for makin

1980-06-18

1981-07-28

Schain, Howard E.

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, 528172, 528185, 528207, 528208, C08G 6928, C08G 6932, C08G 7310, C08G 7314

Patent

active

042811007

ABSTRACT:
A method is described for making substantially solvent-free particulated injection moldable polyetherimide oligomer directly from aromatic bis(ether anhydride) and organic diamine. The particulated polyetherimide oligomer can be used to make shaped, high molecular weight polyetherimide by melt polymerization.

REFERENCES:
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patent: 3905942 (1975-09-01), Takekoshi et al.
patent: 3983093 (1976-09-01), Williams et al.
patent: 3989670 (1976-11-01), Takekoshi et al.
patent: 4048142 (1977-09-01), Takekoshi
patent: 4073773 (1978-02-01), Banucci et al.
patent: 4157996 (1979-06-01), Boldebuck et al.
patent: 4197396 (1980-04-01), Banucci et al.
patent: 4221897 (1980-09-01), Takekoshi

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