Process for producing cellulose acetate

Details Process for producing cellulose acetate Process for producing cellulose acetate

1993-10-12

1995-09-19

Mullis, Jeffrey

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 76, 536124, 241 21, 241 28, C08B 102, C08B 306, C08B 324, B27J 700

Patent

active

054516722

ABSTRACT:
A process for producing cellulose acetate from a hard, low-grade pulp sheet having a high sheet density on an industrial scale without impairing the acetylation reactivity of the pulp, characterized in that a pulp sheet having a sheet density of at least 0.5 g/cm.sup.3 is used as the cellulose material and the pulp sheet is disintegrated while feeding less than 40 parts by weight, based on 100 parts by weight (in terms of oven-dry weight) of the pulp sheet, of water into the disintegrating section of a disintegrator in the step of disintegrating the material. The present process is economically advantageous because the drying and humidity controlling steps are simplified due to the quantity of water to be fed being small.

REFERENCES:
patent: 1851008 (1932-03-01), Hanson
patent: 2105498 (1938-01-01), Barrett et al.
patent: 2415949 (1944-12-01), Holloway et al.
patent: 2552190 (1951-05-01), Lackey et al.
patent: 4336370 (1982-06-01), Yasnovsky et al.
patent: 4439605 (1984-03-01), Yabune et al.
patent: 5036900 (1991-08-01), Burley et al.

Affiliated with

Also associated with

Rating

Process for producing cellulose acetate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing cellulose acetate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing cellulose acetate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1829211