Agent for treatment of paper machine press section felts and its

Details Agent for treatment of paper machine press section felts and its Agent for treatment of paper machine press section felts and its

1995-06-05

1997-07-29

Bonner, Melissa

Compositions: coating or plastic

Coating or plastic compositions

Coating repellent

10628724, 162199, 252180, 252181, D21F 132

Patent

active

056518129

ABSTRACT:
An agent for treatment of paper machine press section felts is described which comprises one or more anionic polymers having a weight average molecular weight of 500 to less than 5000 selected from polycarboxylic acids and derivatives thereof, and/or 2-phosphino-1,2,4-tricarboxybutane. The novel agent, which preferably comprises a surfactant, inhibits the blinding of paper machine press section felts and provides improved felt conditioning at much lower concentration levels than known commercial products.

REFERENCES:
patent: 3910815 (1975-10-01), Shelor
patent: 4554307 (1985-11-01), Farrar et al.
patent: 4634532 (1987-01-01), Logan et al.
patent: 4715931 (1987-12-01), Schellhamer et al.
patent: 4861429 (1989-08-01), Barnett et al.
patent: 4895622 (1990-01-01), Barnett et al.
patent: 5496477 (1996-03-01), Tang et al.

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