Process for the preparation of mixtures of polyamines of the pol

Details Process for the preparation of mixtures of polyamines of the pol Process for the preparation of mixtures of polyamines of the pol

1979-02-21

1981-03-31

Hines, Robert V.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564333, 564335, C07C 85145

Patent

active

042595266

ABSTRACT:
The instant invention is directed to a process for the preparation of mixtures of polyamines of the polyamino-polyaryl-polymethylene type whereby the proportion or the ortho-substituted products are substantially increased. This increase is brought about by adding the acid catalyst to the aromatic amine/formaldehyde reaction mixture in two or more stages.

REFERENCES:
patent: 3676497 (1972-07-01), Recchia et al.
patent: 3857890 (1974-12-01), Recchia et al.
patent: 3952042 (1976-04-01), Knofel
patent: 3996283 (1976-12-01), Knofel
patent: 4061678 (1977-12-01), Knofel et al.
patent: 4087459 (1978-05-01), Knofel et al.
patent: 4093658 (1978-06-01), Knofel et al.
patent: 4094907 (1978-06-01), Knofel et al.

Affiliated with

Also associated with

Rating

Process for the preparation of mixtures of polyamines of the pol does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of mixtures of polyamines of the pol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of mixtures of polyamines of the pol will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2244983