Process for the production of improved polyaminopolyamide epichl

Details Process for the production of improved polyaminopolyamide epichl Process for the production of improved polyaminopolyamide epichl

1990-08-01

1992-12-15

Anderson, Harold D.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525435, C08G 6948

Patent

active

051717956

ABSTRACT:
A process for the manufacture of improved water soluble polyaminopolyamide-epichlorohydrin resins is disclosed. The polyaminopolyamide-epichlorohydrin reaction is continued until between 70% to 100% of the total charge of epichlorohydrin has reacted. The polyaminopolyamide-epichlorohydrin mixture is then treated with a specified amount of a halogen-free mineral acid. Preferably the mineral acid is selected from the group consisting of sulphuric acid, phosphoric acid, nitric acid and sodium hydrogen sulphate. Following the completion of the acid addition the reaction is continued to effect at least a 10% reduction in the polymer bound organochlorine concentration, based on the composition of the reaction mixture at the time of the acid addition.

REFERENCES:
patent: 2926116 (1960-02-01), Keim
patent: 3197427 (1965-07-01), Schmaltz
patent: 3891589 (1975-06-01), Ray-Chauduri
patent: 4857586 (1989-08-01), Bachem et al.

Affiliated with

Also associated with

Rating

Process for the production of improved polyaminopolyamide epichl 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 production of improved polyaminopolyamide epichl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of improved polyaminopolyamide epichl will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2093670