JPS5731902A - Stabilization of mannich reaction product of polyacrylamide by alkylating agent - Google Patents
Stabilization of mannich reaction product of polyacrylamide by alkylating agentInfo
- Publication number
- JPS5731902A JPS5731902A JP10742680A JP10742680A JPS5731902A JP S5731902 A JPS5731902 A JP S5731902A JP 10742680 A JP10742680 A JP 10742680A JP 10742680 A JP10742680 A JP 10742680A JP S5731902 A JPS5731902 A JP S5731902A
- Authority
- JP
- Japan
- Prior art keywords
- polyacrylamide
- amines
- mannich reaction
- alkylating agent
- reaction product
- 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
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To stabilize a Mannich reaction product of polyacrylamide in an acidic state, by adding at least a specified amount of an alkylating agent thereto.
CONSTITUTION: To a Mannich reaction product of polyacrylamide is added an alkylating agent in an amount at least equimolar to the total of undissociated amines and free formaldehyde contained in the product to adjust the pH of the product to below about 3.0. Said undissociated amines do not mean the total amount of the amines used in the Mannich reaction of polyacrylamide. For example, when an acid is added to the above product, neutralization proceeds stepwise and, after completion of the dissociation of unreacted amines, polymer-bound amines are dissociated, because unreacted dialkylamines can be dissociated more easily than the polymer-bound amines.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10742680A JPS5731902A (en) | 1980-08-05 | 1980-08-05 | Stabilization of mannich reaction product of polyacrylamide by alkylating agent |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10742680A JPS5731902A (en) | 1980-08-05 | 1980-08-05 | Stabilization of mannich reaction product of polyacrylamide by alkylating agent |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5731902A true JPS5731902A (en) | 1982-02-20 |
JPS6234241B2 JPS6234241B2 (en) | 1987-07-25 |
Family
ID=14458837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10742680A Granted JPS5731902A (en) | 1980-08-05 | 1980-08-05 | Stabilization of mannich reaction product of polyacrylamide by alkylating agent |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5731902A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6029132A (en) * | 1983-07-27 | 1985-02-14 | リオン株式会社 | Detection part for sensation examination apparatus |
US5479939A (en) * | 1990-03-09 | 1996-01-02 | Matsushita Electric Industrial Co., Ltd. | Sleep detecting apparatus |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0512657Y2 (en) * | 1987-07-22 | 1993-04-02 | ||
JPH0192538U (en) * | 1987-12-14 | 1989-06-16 | ||
JPH0522660Y2 (en) * | 1988-01-29 | 1993-06-10 | ||
JPH0522661Y2 (en) * | 1988-03-07 | 1993-06-10 | ||
JPH0522662Y2 (en) * | 1988-03-17 | 1993-06-10 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50122594A (en) * | 1974-03-15 | 1975-09-26 | ||
US4096133A (en) * | 1975-10-01 | 1978-06-20 | The Dow Chemical Company | Method for quaternizing polymers of water-soluble aminovinyl monomers |
-
1980
- 1980-08-05 JP JP10742680A patent/JPS5731902A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50122594A (en) * | 1974-03-15 | 1975-09-26 | ||
US4096133A (en) * | 1975-10-01 | 1978-06-20 | The Dow Chemical Company | Method for quaternizing polymers of water-soluble aminovinyl monomers |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6029132A (en) * | 1983-07-27 | 1985-02-14 | リオン株式会社 | Detection part for sensation examination apparatus |
US5479939A (en) * | 1990-03-09 | 1996-01-02 | Matsushita Electric Industrial Co., Ltd. | Sleep detecting apparatus |
US5724990A (en) * | 1990-03-09 | 1998-03-10 | Matsushita Electric Industrial Co., Ltd. | Human monitoring apparatus |
US5902255A (en) * | 1990-03-09 | 1999-05-11 | Matsushita Electric Industrial Co., Ltd. | Human monitoring device |
Also Published As
Publication number | Publication date |
---|---|
JPS6234241B2 (en) | 1987-07-25 |
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