JPS5643304A - Water-absorptive thermoplastic resin - Google Patents
Water-absorptive thermoplastic resinInfo
- Publication number
- JPS5643304A JPS5643304A JP11828679A JP11828679A JPS5643304A JP S5643304 A JPS5643304 A JP S5643304A JP 11828679 A JP11828679 A JP 11828679A JP 11828679 A JP11828679 A JP 11828679A JP S5643304 A JPS5643304 A JP S5643304A
- Authority
- JP
- Japan
- Prior art keywords
- styrene
- starch
- acrylonitrile
- graft
- water
- 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.)
- Pending
Links
- 229920005992 thermoplastic resin Polymers 0.000 title abstract 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract 10
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract 4
- 229920002472 Starch Polymers 0.000 abstract 4
- 235000019698 starch Nutrition 0.000 abstract 4
- 239000008107 starch Substances 0.000 abstract 4
- 229920000881 Modified starch Polymers 0.000 abstract 2
- 239000004368 Modified starch Substances 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 2
- 239000000178 monomer Substances 0.000 abstract 2
- 229920000642 polymer Polymers 0.000 abstract 2
- 239000004793 Polystyrene Substances 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 229920000578 graft copolymer Polymers 0.000 abstract 1
- 229920002239 polyacrylonitrile Polymers 0.000 abstract 1
- 229920002223 polystyrene Polymers 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To obtain a water-absorptive resin which has excellent compatibility with thermoplastic resins and which itself has thermoplasticity, by saponifying a starch/ polystyrene/polyacrylonitrile graft copolymer with an alkali.
CONSTITUTION: A graft-modified starch in which starch is the backbone polymer and a styrene/acrylonitrile copolymer constitutes graft side chains, is prepared by cografting styrene and acrylonitrile onto starch. The graft-modified starch produced is saponified with an alkali. The weight ratio of starch which is the backbone polymer to the grafted side chains is preferably 1:1W5, and the weight ratio between side chain-constituting monomers, i.e., acrylonitrile and styrene, is 1:0.5W 10. On account of water absorptivity, thermoplasticity and compatibility with thermoplastic resins, it is preferred that other ethylenically unsaturated monomers, if used, copolymerizable with acrylonitrile and styrene is present in an amount of below 20wt%, based on the total of acrylonitrile and styrene.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11828679A JPS5643304A (en) | 1979-09-14 | 1979-09-14 | Water-absorptive thermoplastic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11828679A JPS5643304A (en) | 1979-09-14 | 1979-09-14 | Water-absorptive thermoplastic resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5643304A true JPS5643304A (en) | 1981-04-22 |
Family
ID=14732900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11828679A Pending JPS5643304A (en) | 1979-09-14 | 1979-09-14 | Water-absorptive thermoplastic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5643304A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01139899A (en) * | 1987-08-12 | 1989-06-01 | Toyo Tire & Rubber Co Ltd | Humidity permeable dew condensation preventing wallpaper and its production |
-
1979
- 1979-09-14 JP JP11828679A patent/JPS5643304A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01139899A (en) * | 1987-08-12 | 1989-06-01 | Toyo Tire & Rubber Co Ltd | Humidity permeable dew condensation preventing wallpaper and its production |
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