Composition for enhancing the pulping of wood chips

Details Composition for enhancing the pulping of wood chips Composition for enhancing the pulping of wood chips

1992-06-09

1994-03-29

Jones, W. Gary

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Treatment with particular chemical

162 72, 1621641, 25217422, D21C 320

Patent

active

052981207

ABSTRACT:
A novel composition for use in a process for cooking wood to form pulp and processes for using same are provided. The composition and variations thereof are useful in enhancing the uniformity of wood cooking and reducing the rejects in a pulping process for the production of pulp. The composition comprises esters of block copolymers having the general formula ##STR1## wherein x, y, and z each have a value of at least one.

REFERENCES:
patent: 3036118 (1962-05-01), Jackson et al.
patent: 4673460 (1987-06-01), Raff
patent: 4906331 (1990-03-01), Blackstone et al.
patent: 4952277 (1990-08-01), Chen et al.
patent: 5032224 (1991-06-01), Ahluwalia

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