Semisynthetic paper structure on a urea basis

Details Semisynthetic paper structure on a urea basis Semisynthetic paper structure on a urea basis

1977-09-21

1980-01-15

Bashore, S. Leon

Paper making and fiber liberation

Processes and products

Non-fiber additive

162167, 162181A, 162181C, 162181D, 71 28, 71 29, D21H 354

Patent

active

041837835

ABSTRACT:
A semisynthetic paper with low bulk comprises a continuous, chemically bonded, open fibre network formed by cellulosic vegetable fibres and fragments of urea-formaldehyde condensate, the fragments being precured before paper web formation and being cured a second time when drying the paper web.
A method of producing a semisynthetic paper with low bulk comprises the steps of forming precured fragments of a urea-formaldehyde condensate, forming a stock of the fragments and cellulosic vegetable fibres, including in the stock a water-insoluble latent curing agent, forming a paper web from the stock, and drying the paper web, the fragments being cured a second time during the drying operation.

REFERENCES:
patent: 2582840 (1952-01-01), Maxwell
patent: 3004884 (1961-10-01), Eberl et al.
patent: 3497373 (1970-02-01), Rieck
patent: 3912532 (1975-10-01), Simone

Affiliated with

Also associated with

Rating

Semisynthetic paper structure on a urea basis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semisynthetic paper structure on a urea basis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semisynthetic paper structure on a urea basis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1027504