Product and process for making a creped and calendered cellulosi

Details Product and process for making a creped and calendered cellulosi Product and process for making a creped and calendered cellulosi

1978-05-12

1980-04-01

Bashore, S. Leon

Paper making and fiber liberation

Processes and products

Non-uniform, irregular or configured web or sheet

162113, 162138, 162158, 162206, 427121, 428153, D21H 524

Patent

active

041960440

ABSTRACT:
A process for producing cellulosic products which are particularly suitable for use as electrical insulators. The product is produced by creping base paper or stock and thereafter calendering the paper so that its final density is equal or greater than its starting density. The resulting creped product desirably has a density in the range from 0.8 to 1.2 grams per cubic centimeter, an increased Gurley densometer reading and has such mechanical and electrical properties as flexibility, extensibility and insulative effect.

REFERENCES:
patent: 1676759 (1928-07-01), Widmer
patent: 1805013 (1931-05-01), Sayler
patent: 3102159 (1963-08-01), Ford
patent: 3149025 (1964-09-01), Dickens
patent: 3170027 (1965-02-01), Ford
patent: 3316178 (1967-04-01), Millington
patent: 3469219 (1969-09-01), Berg et al.
patent: 3640841 (1972-02-01), Winslow et al.
patent: 3728465 (1973-04-01), Yasui et al.
Casey, "Pulp and Paper" vol. III, (1961), pp. 1275, 1276, 1464-1473.

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