JPH0579011B2 - - Google Patents
Info
- Publication number
- JPH0579011B2 JPH0579011B2 JP9326286A JP9326286A JPH0579011B2 JP H0579011 B2 JPH0579011 B2 JP H0579011B2 JP 9326286 A JP9326286 A JP 9326286A JP 9326286 A JP9326286 A JP 9326286A JP H0579011 B2 JPH0579011 B2 JP H0579011B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- substrate
- molding
- birefringence
- optical
- 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.)
- Expired - Lifetime
Links
- 239000000758 substrate Substances 0.000 claims description 42
- 239000011347 resin Substances 0.000 claims description 25
- 229920005989 resin Polymers 0.000 claims description 25
- 238000000465 moulding Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 18
- 230000003287 optical effect Effects 0.000 claims description 15
- 238000001746 injection moulding Methods 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 description 14
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000004431 polycarbonate resin Substances 0.000 description 5
- 229920005668 polycarbonate resin Polymers 0.000 description 5
- 239000004417 polycarbonate Substances 0.000 description 4
- 229920000515 polycarbonate Polymers 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910017061 Fe Co Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
- B29C45/568—Applying vibrations to the mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2017/00—Carriers for sound or information
- B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
- B29L2017/003—Records or discs
- B29L2017/005—CD''s, DVD''s
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Manufacturing Optical Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9326286A JPS62249717A (ja) | 1986-04-24 | 1986-04-24 | 光デイスク基板の成形方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9326286A JPS62249717A (ja) | 1986-04-24 | 1986-04-24 | 光デイスク基板の成形方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62249717A JPS62249717A (ja) | 1987-10-30 |
| JPH0579011B2 true JPH0579011B2 (enrdf_load_stackoverflow) | 1993-11-01 |
Family
ID=14077570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9326286A Granted JPS62249717A (ja) | 1986-04-24 | 1986-04-24 | 光デイスク基板の成形方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62249717A (enrdf_load_stackoverflow) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01182016A (ja) * | 1988-01-16 | 1989-07-19 | Etsuhisa Abe | プラスチック射出成形方法 |
| JP2709853B2 (ja) * | 1989-06-08 | 1998-02-04 | 宇部興産株式会社 | 射出成形方法 |
| US5182053A (en) * | 1990-03-02 | 1993-01-26 | Optical Radiation Corporation | Process for forming intraocular lenses having haptics with high fracture toughness |
| NL1012107C2 (nl) * | 1999-05-19 | 2000-11-23 | Axxicon Moulds Eindhoven Bv | Werkwijze en inrichting voor het spuitgieten van voorwerpen. |
| JP3937209B2 (ja) * | 1999-09-22 | 2007-06-27 | 大日本インキ化学工業株式会社 | 定量連続押出供給方法及びそれを利用した成形品の製造方法 |
| DE102005025461B4 (de) | 2005-06-02 | 2008-08-21 | Ems-Chemie Ag | Verfahren zum Ausgleichen der Orientierung von Füllstoffen und/oder der Verteilung von Füllstoffen in Spritzgussteilen |
| JP2007069393A (ja) * | 2005-09-05 | 2007-03-22 | Ntn Corp | 動圧溝の形成方法 |
-
1986
- 1986-04-24 JP JP9326286A patent/JPS62249717A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62249717A (ja) | 1987-10-30 |