D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
8/81
D21C 9/10 (2006.01) D21C 9/16 (2006.01)
Patent
CA 1154205
ABSTRACT OF THE DISCLOSURE Use of hydrosulfite in the alkaline extraction stage of oxygen-ozone bleached kraft paper pulp results in improved brightness and reverted brightness of the pulp.
372737
Bhattacharjee Shyam S.
Godsay Madhu P.
International Paper Company
Osler Hoskin & Harcourt Llp
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