Process for sizing cellulose fibre containing material

Details Process for sizing cellulose fibre containing material Process for sizing cellulose fibre containing material

1974-01-31

1976-01-06

Bashore, S. Leon

Paper making and fiber liberation

Processes and products

Non-fiber additive

8181, 8192, 252312, 427395, D21D 300

Patent

active

039309320

ABSTRACT:
The present invention relates to a process for sizing cellulose fibers or cellulose fiber containing materials and a composition for carrying out the process. According to the process the time for developing full sizing effect of ketene dimers and carbamoyl chlorides is reduced by carrying out sizing in the presence of a chloroformate or an isocyanate. The composition for carrying out the process comprises of a paper sizing composition containing the sizing agents mentioned above in combination with a chloroformate or an isocyanate.

REFERENCES:
patent: 3008978 (1961-11-01), Brotherton et al.
patent: 3492081 (1970-01-01), Morak
patent: 3499824 (1970-03-01), Strazdins et al.
patent: 3501523 (1970-03-01), Sayigh et al.

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