Method for deinking wastepaper using alkoxy capped polyethylene

Details Method for deinking wastepaper using alkoxy capped polyethylene Method for deinking wastepaper using alkoxy capped polyethylene

1991-05-14

1992-04-07

Hastings, Karen M.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 6, 162158, D21C 502

Patent

active

051025000

ABSTRACT:
The present invention relates to a method of removing ink from secondary fiber by contacting a pulp of said secondary fiber with an aqueous medium in the presence of a polymeric material having a glass transition temperature in the range of from about 20.degree. C. to about 70.degree. C. and a substituted polyethylene oxide to agglomerate the ink into discrete masses and separating the agglomerated ink from the pulp-containing aqueous medium.

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patent: 4561933 (1985-12-01), Wood et al.
patent: 4618400 (1986-10-01), Wood et al.
patent: 4643800 (1987-02-01), Maloney et al.
1985 Tappi Pulping Conference Proceedings, pp. 561-566.
1987 Tappi Pulping Conference Proceeding, pp. 33, 40, 133-142.

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