Paper making and fiber liberation – Processes and products – Non-fiber additive
Reexamination Certificate
2005-05-10
2005-05-10
Fortuna, Josée A. (Department: 1731)
Paper making and fiber liberation
Processes and products
Non-fiber additive
C162S199000, C162S169000, C162S181600, C162S181700, C162S181800, C162S147000
Reexamination Certificate
active
06890405
ABSTRACT:
To reduce the problem of tackiness caused by contaminants in recycled paper, effective amounts of talc and a terpene such as D-limonene are added to paper stock in conjunction with chemical fixing agents and retention aids. The terpene increases the affinity of the contaminants for the talc, thus increasing detackification of the contaminants and improving the productivity of the papermaking process.
REFERENCES:
patent: 5080759 (1992-01-01), Buzby et al.
patent: 5139616 (1992-08-01), Ling
patent: 5936024 (1999-08-01), Ling et al.
patent: 6150452 (2000-11-01), Ling et al.
patent: 20030207639 (2003-11-01), Lin
Clark & Brody
Fortuna Josée A.
Manistique Papers, Inc.
Murphy Brenda
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