METHOD FOR INCREASING SERVICE LIFE OF PAPER-MAKING BAND Russian patent published in 1997 - IPC

Abstract RU 2085643 C1

FIELD: pulp-and-paper industry. SUBSTANCE: paper-making band contains hard polymeric resin produced by hardening of liquid photo-sensitive resin by light of activating wave length. Method involves slowing oxidation rate of resin by applying disintegrating emulsion to paper-making band during production process. Emulsion contains water, oil, surfactant and effective amount of antioxidant, which is selected in the group containing phenols with volumetric substituents, secondary amines and their mixtures. Antioxidant is soluble in oil phase of disintegrating emulsion and may further contain secondary antioxidant selected in the group containing phosphites, thio ethers and mixtures of them, particularly, mixtures of thio ethers. EFFECT: increased efficiency and prolonged service life. 6 cl, 3 dwg

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RU 2 085 643 C1

Authors

Pol Dennis Trokhan[Us]

Dates

1997-07-27Published

1991-04-08Filed