Process for restrengthening damaged paper and product produced t

Details Process for restrengthening damaged paper and product produced t Process for restrengthening damaged paper and product produced t

1994-11-10

1996-01-09

Owens, Terry J.

Stock material or miscellaneous articles

Composite

Of carbohydrate

427395, 427140, B32B 2900, B32B 3500

Patent

active

054827817

ABSTRACT:
Process for restrengthening damaged paper, in which the aged, acid-damaged friable paper is treated with a solution containing isocyanate or with isocyanate vapour. Isocyanates having two or more isocyanate groups are preferably used.

REFERENCES:
patent: 5277842 (1994-01-01), Wittekind et al.
Zietscheift Fur Bibliothekswesen und Bibliographie Helmut Bansa, 1988, pp. 226-236 "New Developments in the Field of Preservation" No Month.
Tappi, Morak et al., Cross-Linking of Linerboard to Reduce Stiffness Loss, Apr. 1970, vol. 53, No. 4.

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