JPS56155714A - Granulating method for polycarbonate - Google Patents
Granulating method for polycarbonateInfo
- Publication number
- JPS56155714A JPS56155714A JP5862380A JP5862380A JPS56155714A JP S56155714 A JPS56155714 A JP S56155714A JP 5862380 A JP5862380 A JP 5862380A JP 5862380 A JP5862380 A JP 5862380A JP S56155714 A JPS56155714 A JP S56155714A
- Authority
- JP
- Japan
- Prior art keywords
- polycarbonate
- dry
- molding
- type compression
- compression molding
- 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
- 229920000515 polycarbonate Polymers 0.000 title abstract 6
- 239000004417 polycarbonate Substances 0.000 title abstract 6
- 238000000748 compression moulding Methods 0.000 abstract 3
- 238000000465 moulding Methods 0.000 abstract 3
- 108010053481 Antifreeze Proteins Proteins 0.000 abstract 2
- 239000000843 powder Substances 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- 229930185605 Bisphenol Natural products 0.000 abstract 1
- 238000005469 granulation Methods 0.000 abstract 1
- 230000003179 granulation Effects 0.000 abstract 1
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
PURPOSE: To easily prepare polycarbonate grains containing little solvent and having little thermal hysteresis, by granulating polycarbonate powder by means of a dry-type compression molding machine.
CONSTITUTION: Polycarbonate powder, preferably, the one mainly consisting of bisphenol aromatic polycarbonate is granulated by a dry-type compression molding machine. The molding temperature in this dry-type compression molding is preferably from ambient temperature to 180°C and the molding pressure is preferably 2kg/cm2 or more. By using the dry-type compresion molding as a means for granulation in this way, polycarbonate grains containing little solvent and having little thermal hysteresis can be prepared easily.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5862380A JPS56155714A (en) | 1980-05-06 | 1980-05-06 | Granulating method for polycarbonate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5862380A JPS56155714A (en) | 1980-05-06 | 1980-05-06 | Granulating method for polycarbonate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56155714A true JPS56155714A (en) | 1981-12-02 |
JPS6223643B2 JPS6223643B2 (en) | 1987-05-25 |
Family
ID=13089693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5862380A Granted JPS56155714A (en) | 1980-05-06 | 1980-05-06 | Granulating method for polycarbonate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56155714A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0673958A1 (en) * | 1993-09-21 | 1995-09-27 | Teijin Chemicals, Ltd. | Aromatic polycarbonate resin particulate and process for producing the same |
US5760160A (en) * | 1993-09-21 | 1998-06-02 | Teijin Chemicals Ltd. | Aromatic polycarbonate resin granule |
WO2002085835A1 (en) * | 2001-04-20 | 2002-10-31 | Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo | Granule of parahydroxybenzoic acid or parahydroxybenzoic ester and process for producing the same |
-
1980
- 1980-05-06 JP JP5862380A patent/JPS56155714A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0673958A1 (en) * | 1993-09-21 | 1995-09-27 | Teijin Chemicals, Ltd. | Aromatic polycarbonate resin particulate and process for producing the same |
EP0673958A4 (en) * | 1993-09-21 | 1996-06-12 | Teijin Chemicals Ltd | Aromatic polycarbonate resin particulate and process for producing the same. |
US5663277A (en) * | 1993-09-21 | 1997-09-02 | Teijin Chemicals, Ltd. | Aromatic polycarbonate resin granule and process for the production thereof |
US5760160A (en) * | 1993-09-21 | 1998-06-02 | Teijin Chemicals Ltd. | Aromatic polycarbonate resin granule |
WO2002085835A1 (en) * | 2001-04-20 | 2002-10-31 | Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo | Granule of parahydroxybenzoic acid or parahydroxybenzoic ester and process for producing the same |
US6673962B2 (en) | 2001-04-20 | 2004-01-06 | Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo | Granule of parahydroxybenzoic acid or parahydroxybenzoic ester and process for producing the same |
Also Published As
Publication number | Publication date |
---|---|
JPS6223643B2 (en) | 1987-05-25 |
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