Process for bleaching paper pulp using caffeine or guanine as a

Details Process for bleaching paper pulp using caffeine or guanine as a Process for bleaching paper pulp using caffeine or guanine as a

Filed on

1983-09-30

Date issued

1984-11-27

Examiner

Alvo, Steve

Patent Class

Paper making and fiber liberation

SubClass

Processes of chemical liberation, recovery or purification...

SubSubClass

Treatment with particular chemical

Other Related Categories

162 72, 162 87, 162 88, 162 89, D21C 912, D21C 914

Type

Patent

Status

active

Patent number

044849800

Description

ABSTRACT:
A process for maintaining pulp viscosity during the bleaching stage or stages of pulp preparation in the manufacture of paper comprising adding an effective amount of caffeine or guanine prior to or during the bleaching stage. One example adds caffeine or guanine to one bleach stage of a chlorine bleaching sequence.

REFERENCES:
patent: 3308012 (1967-03-01), Tobar
patent: 4295928 (1981-10-01), Breslin

Affiliated with

Also associated with

Rating

Process for bleaching paper pulp using caffeine or guanine as a 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 bleaching paper pulp using caffeine or guanine as a , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for bleaching paper pulp using caffeine or guanine as a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2133098