JPS57183417A - Production of pulp-like substance - Google Patents
Production of pulp-like substanceInfo
- Publication number
- JPS57183417A JPS57183417A JP6410381A JP6410381A JPS57183417A JP S57183417 A JPS57183417 A JP S57183417A JP 6410381 A JP6410381 A JP 6410381A JP 6410381 A JP6410381 A JP 6410381A JP S57183417 A JPS57183417 A JP S57183417A
- Authority
- JP
- Japan
- Prior art keywords
- solution
- precipitant
- under
- aromatic
- shear force
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: A solution of specific aromatic polyamide polymer and a precipitant are mixed under high shear force conditions to produce the titled substance with good water filtration, paper-making properties, less fluctuation in paper thickness and showing high physical properties such as electric insulation after processed.
CONSTITUTION: The reaction between an aromatic polycarboxylic acid such as isophthalic acid and an aromatic polyisocyanate such as tolylene-2,6-diisocyanate is conducted in an anhydrous organic polar solvent such as N,N-dimethylacetamide in an inert gas atmosphere or under reduced pressure in the presence of a catalyst of a monoalkali salt of organic polycarboxylic acid at 20W250°C under heating to prepare a 2W40wt% solution of an aromatic polyamide of more than 0.5 inherent viscosity. The resultant polymer solution is mixed with a precipitant, preferably a mixture of water (5W90wt%) with an inorganic compound such as calcium chloride under a shear force of higher than 3,000 Leynold's number at 35W95°C.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6410381A JPS57183417A (en) | 1981-04-30 | 1981-04-30 | Production of pulp-like substance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6410381A JPS57183417A (en) | 1981-04-30 | 1981-04-30 | Production of pulp-like substance |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57183417A true JPS57183417A (en) | 1982-11-11 |
JPS6350444B2 JPS6350444B2 (en) | 1988-10-07 |
Family
ID=13248401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6410381A Granted JPS57183417A (en) | 1981-04-30 | 1981-04-30 | Production of pulp-like substance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57183417A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6119808A (en) * | 1984-06-30 | 1986-01-28 | Mitsui Toatsu Chem Inc | Preparation of pulpy substance |
JPS6285014A (en) * | 1985-10-09 | 1987-04-18 | Mitsui Toatsu Chem Inc | Production of synthetic resin pulp |
JPS6285016A (en) * | 1985-10-09 | 1987-04-18 | Mitsui Toatsu Chem Inc | Production of synthetic resin pulp |
JPS6285018A (en) * | 1985-10-09 | 1987-04-18 | Mitsui Toatsu Chem Inc | Production of synthetic resin pulp |
JPS6285017A (en) * | 1985-10-09 | 1987-04-18 | Mitsui Toatsu Chem Inc | Production of synthetic resin pulp |
JPS6285011A (en) * | 1985-10-09 | 1987-04-18 | Mitsui Toatsu Chem Inc | Production of synthetic resin pulp |
JPS6285015A (en) * | 1985-10-09 | 1987-04-18 | Mitsui Toatsu Chem Inc | Production of synthetic resin pulp |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5215621A (en) * | 1975-07-25 | 1977-02-05 | Teijin Ltd | Apparatus for producing pulp particles |
JPS5310718A (en) * | 1976-07-15 | 1978-01-31 | Teijin Ltd | Particle pulp |
-
1981
- 1981-04-30 JP JP6410381A patent/JPS57183417A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5215621A (en) * | 1975-07-25 | 1977-02-05 | Teijin Ltd | Apparatus for producing pulp particles |
JPS5310718A (en) * | 1976-07-15 | 1978-01-31 | Teijin Ltd | Particle pulp |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6119808A (en) * | 1984-06-30 | 1986-01-28 | Mitsui Toatsu Chem Inc | Preparation of pulpy substance |
JPH0453963B2 (en) * | 1984-06-30 | 1992-08-28 | Mitsui Toatsu Chemicals | |
JPS6285014A (en) * | 1985-10-09 | 1987-04-18 | Mitsui Toatsu Chem Inc | Production of synthetic resin pulp |
JPS6285016A (en) * | 1985-10-09 | 1987-04-18 | Mitsui Toatsu Chem Inc | Production of synthetic resin pulp |
JPS6285018A (en) * | 1985-10-09 | 1987-04-18 | Mitsui Toatsu Chem Inc | Production of synthetic resin pulp |
JPS6285017A (en) * | 1985-10-09 | 1987-04-18 | Mitsui Toatsu Chem Inc | Production of synthetic resin pulp |
JPS6285011A (en) * | 1985-10-09 | 1987-04-18 | Mitsui Toatsu Chem Inc | Production of synthetic resin pulp |
JPS6285015A (en) * | 1985-10-09 | 1987-04-18 | Mitsui Toatsu Chem Inc | Production of synthetic resin pulp |
Also Published As
Publication number | Publication date |
---|---|
JPS6350444B2 (en) | 1988-10-07 |
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