Polyhexamethylenimine and process for its preparation

Details Polyhexamethylenimine and process for its preparation Polyhexamethylenimine and process for its preparation

1978-09-26

1980-08-05

Briggs, Sr., Wilbert J.

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

Synthetic resins

Nitrogen-containing reactant

260583P, 528423, C08G 7302, C08G 7304

Patent

active

042163072

ABSTRACT:
A process is provided for producing polyhexamethylenimine by condensing hexamethylenediamine at 50.degree. to 300.degree. C. in the presence of a palladium catalyst. The process yields substantially linear, high-molecular-weight polyhexamethylenimines, especially novel polyhexamethylenimines having a molecular weight of at least 1,000. Polyhexamethylenimines having a molecular weight of at least 500 are useful as gelling agents for organic liquids.

REFERENCES:
patent: T945004 (1976-04-01), Valaitis et al.
patent: 3391127 (1968-07-01), Kamal
patent: 3972939 (1976-08-01), Spielberger et al.
patent: 4100194 (1978-07-01), Hobbs et al.
Valaitis et al., Application Ser. No. 540,351, filed 12-16-74, (under Rule 60, continuation of Ser. No. 352,845, filed 04-19-73), laid open to public inspection on 04-06-76 as noted in 945, O.G. 30 (pp. 2-9).

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