CH339380A - Verfahren zur Herstellung von in Wasser löslichen Polyvinylalkoholen - Google Patents
Verfahren zur Herstellung von in Wasser löslichen PolyvinylalkoholenInfo
- Publication number
- CH339380A CH339380A CH339380DA CH339380A CH 339380 A CH339380 A CH 339380A CH 339380D A CH339380D A CH 339380DA CH 339380 A CH339380 A CH 339380A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- water
- polyvinyl alcohols
- soluble polyvinyl
- soluble
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/12—Hydrolysis
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/12—Sanitary or hygienic devices for mouthpieces or earpieces, e.g. for protecting against infection
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Public Health (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Cosmetics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF16232A DE946848C (de) | 1954-11-27 | 1954-11-27 | Verfahren zur Herstellung hochviskos-loeslicher Polyvinylalkohole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH339380A true CH339380A (de) | 1959-06-30 |
Family
ID=25817322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH339380D CH339380A (de) | 1954-11-27 | 1955-11-24 | Verfahren zur Herstellung von in Wasser löslichen Polyvinylalkoholen |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2860124A (de) |
| CH (1) | CH339380A (de) |
| DE (1) | DE946848C (de) |
| FR (1) | FR1136190A (de) |
| GB (1) | GB818037A (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL216095A (de) * | 1956-04-11 | |||
| GB933104A (en) * | 1958-12-04 | 1963-08-08 | Kurashiki Rayon Kk | Process of and apparatus for purifying polyvinyl alcohol prepared by saponification |
| JPS61148209A (ja) * | 1984-12-21 | 1986-07-05 | Kuraray Co Ltd | 高重合度ポリビニルアルコール系重合体の製造方法 |
| US5310790A (en) * | 1986-08-01 | 1994-05-10 | Kuraray Co. Ltd. | Process for producing polyvinyl ester having a high degree of polymerization and process for producing polyvinyl alcohol having a high degree of polymerization |
| JPH0699516B2 (ja) * | 1986-08-01 | 1994-12-07 | 株式会社クラレ | 高重合度ポリビニルエステル系重合体の製造方法及び高重合度ポリビニルアルコ−ル系重合体の製造方法 |
| JP2542346B2 (ja) * | 1987-05-30 | 1996-10-09 | 日本合成化学工業株式会社 | 高重合度ポリビニルアルコ−ルの製造法 |
| EP2030997B1 (de) * | 2006-04-19 | 2013-10-30 | The Nippon Synthetic Chemical Industry Co., Ltd. | Polyvinylalkoholharz und verwendung davon |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE410558A (de) * | 1934-07-26 | |||
| US2668809A (en) * | 1949-11-22 | 1954-02-09 | Du Pont | Preparation of high viscosity polyvinyl alcohol |
| US2661363A (en) * | 1952-01-18 | 1953-12-01 | Shell Dev | Peresters of peroxycarboxylic acids |
-
1954
- 1954-11-27 DE DEF16232A patent/DE946848C/de not_active Expired
-
1955
- 1955-11-15 US US547022A patent/US2860124A/en not_active Expired - Lifetime
- 1955-11-24 CH CH339380D patent/CH339380A/de unknown
- 1955-11-25 FR FR1136190D patent/FR1136190A/fr not_active Expired
- 1955-11-25 GB GB33914/55A patent/GB818037A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1136190A (fr) | 1957-05-10 |
| DE946848C (de) | 1956-08-09 |
| US2860124A (en) | 1958-11-11 |
| GB818037A (en) | 1959-08-12 |
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