JPS57185287A - Purification of bis(alkylbenzylidene)sorbitol - Google Patents
Purification of bis(alkylbenzylidene)sorbitolInfo
- Publication number
- JPS57185287A JPS57185287A JP56068293A JP6829381A JPS57185287A JP S57185287 A JPS57185287 A JP S57185287A JP 56068293 A JP56068293 A JP 56068293A JP 6829381 A JP6829381 A JP 6829381A JP S57185287 A JPS57185287 A JP S57185287A
- Authority
- JP
- Japan
- Prior art keywords
- sorbitol
- benzaldehyde
- product
- purification
- formulai
- 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
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Abstract
PURPOSE: To purify the titled compound useful as an additive for resins industrially advantageously, by heat-treating a crude reaction product of sorbitol and a benzaldehyde in a specific pH in the presence of an organic solvent so that unreacted substances and by-product are eliminated.
CONSTITUTION: Sorbitol is dehydrated and condensed with benzaldehyde or an alkylbenzaldehyde in the presence of an acid catalyst to give a reaction product, which is heat-treated in a pH of ≥7 in the presence of a lower aliphatic ketone (e.g., acetone, methyl ethyl ketone, etc.), so that a compound shown by the formulaI(R is H or 1W3C alkyl; n is 1W3) is separated and purified. An alkali for making the pH ≥7 is NaOH, Na2CO3, KOH, etc. A by-product shown by the formula II is eliminated effectively by the purification, and unreacted sorbitol, benzaldehyde, etc. are also removed. The compound shown by the formulaI, having high purity as an additive for polyolefin resins useful as parts for foods or medical device, is obtained.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56068293A JPS57185287A (en) | 1981-05-08 | 1981-05-08 | Purification of bis(alkylbenzylidene)sorbitol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56068293A JPS57185287A (en) | 1981-05-08 | 1981-05-08 | Purification of bis(alkylbenzylidene)sorbitol |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57185287A true JPS57185287A (en) | 1982-11-15 |
| JPH0250909B2 JPH0250909B2 (en) | 1990-11-05 |
Family
ID=13369580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56068293A Granted JPS57185287A (en) | 1981-05-08 | 1981-05-08 | Purification of bis(alkylbenzylidene)sorbitol |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57185287A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6032791A (en) * | 1983-07-29 | 1985-02-19 | Showa Denko Kk | Preparation of dibenzylidenesorbitols |
| JPS63208589A (en) * | 1987-02-23 | 1988-08-30 | New Japan Chem Co Ltd | Production of dibenzylidenesorbitols |
| JPH0259587A (en) * | 1988-08-24 | 1990-02-28 | New Japan Chem Co Ltd | Stabilized composition of dibenzylidene sorbitols |
| JPH03120285A (en) * | 1989-10-02 | 1991-05-22 | New Japan Chem Co Ltd | Production of diacetal |
| US5241080A (en) * | 1991-07-09 | 1993-08-31 | Mitsui Toatsu Chemicals, Inc. | Process for stabilizing dibenzylidenesorbitols and composition thereof |
| WO2018021161A1 (en) | 2016-07-29 | 2018-02-01 | 新日本理化株式会社 | Crystal nucleating agent for polyolefin resin, method for producing crystal nucleating agent for polyolefin resin, and method for improving fluidity of crystal nucleating agent for polyolefin resin |
| WO2018037908A1 (en) | 2016-08-25 | 2018-03-01 | 新日本理化株式会社 | Crystal nucleator for polyolefin resins, method for producing crystal nucleator for polyolefin resins, and method for improving fluidity of crystal nucleator for polyolefin resins |
-
1981
- 1981-05-08 JP JP56068293A patent/JPS57185287A/en active Granted
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6032791A (en) * | 1983-07-29 | 1985-02-19 | Showa Denko Kk | Preparation of dibenzylidenesorbitols |
| JPS63208589A (en) * | 1987-02-23 | 1988-08-30 | New Japan Chem Co Ltd | Production of dibenzylidenesorbitols |
| JP2631652B2 (en) * | 1987-02-23 | 1997-07-16 | 新日本理化株式会社 | Stabilized dibenzylidene sorbitols |
| JPH0259587A (en) * | 1988-08-24 | 1990-02-28 | New Japan Chem Co Ltd | Stabilized composition of dibenzylidene sorbitols |
| JPH0717648B2 (en) * | 1988-08-24 | 1995-03-01 | 新日本理化株式会社 | Stabilized dibenzylidene sorbitol compositions |
| JPH03120285A (en) * | 1989-10-02 | 1991-05-22 | New Japan Chem Co Ltd | Production of diacetal |
| US5241080A (en) * | 1991-07-09 | 1993-08-31 | Mitsui Toatsu Chemicals, Inc. | Process for stabilizing dibenzylidenesorbitols and composition thereof |
| WO2018021161A1 (en) | 2016-07-29 | 2018-02-01 | 新日本理化株式会社 | Crystal nucleating agent for polyolefin resin, method for producing crystal nucleating agent for polyolefin resin, and method for improving fluidity of crystal nucleating agent for polyolefin resin |
| WO2018037908A1 (en) | 2016-08-25 | 2018-03-01 | 新日本理化株式会社 | Crystal nucleator for polyolefin resins, method for producing crystal nucleator for polyolefin resins, and method for improving fluidity of crystal nucleator for polyolefin resins |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0250909B2 (en) | 1990-11-05 |
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