JPS5677905A - Disk record - Google Patents

Disk record

Info

Publication number
JPS5677905A
JPS5677905A JP15489579A JP15489579A JPS5677905A JP S5677905 A JPS5677905 A JP S5677905A JP 15489579 A JP15489579 A JP 15489579A JP 15489579 A JP15489579 A JP 15489579A JP S5677905 A JPS5677905 A JP S5677905A
Authority
JP
Japan
Prior art keywords
resin
stamper
disk record
record
wear resistance
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
Application number
JP15489579A
Other languages
Japanese (ja)
Other versions
JPH0232681B2 (en
Inventor
Yoshinobu Murakami
Akitake Ito
Toshiaki Kashihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP15489579A priority Critical patent/JPS5677905A/en
Publication of JPS5677905A publication Critical patent/JPS5677905A/en
Publication of JPH0232681B2 publication Critical patent/JPH0232681B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To increase both the wear resistance and the fidelity of a disk record, by coating the ultraviolet-ray hardening resin on th surface of the disk record and thus facilitating an easy exfoliation of the record from the stamper during the production.
CONSTITUTION: The liquid resin 2 which is hardened with irradiation of the ultraviolet rays is coated over the surface of a stamper into which the signals are engraved. Then the transparent plate supporter 1 is press-fixed on the resin 2 to secure a uniform thickness of the resin 2. The ultraviolet rays are irradiated through the supporter to harden the liquid resin and then exfoliate the resin from the stamper. Thus a disk record is obtained. The composition of the resin contains 2,2-bis (4-acryloyloxtpolyethylene-oxyphenyl) propane which is expressed by a constitutional formula (where, the total of integers m and n is 3W4.) As a result, the exfoliation of the disk record from the stamper, at the same time enhancing the wear resistance of the signal groove 3 to the diamond stylus and the like.
COPYRIGHT: (C)1981,JPO&Japio
JP15489579A 1979-11-28 1979-11-28 Disk record Granted JPS5677905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15489579A JPS5677905A (en) 1979-11-28 1979-11-28 Disk record

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15489579A JPS5677905A (en) 1979-11-28 1979-11-28 Disk record

Publications (2)

Publication Number Publication Date
JPS5677905A true JPS5677905A (en) 1981-06-26
JPH0232681B2 JPH0232681B2 (en) 1990-07-23

Family

ID=15594297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15489579A Granted JPS5677905A (en) 1979-11-28 1979-11-28 Disk record

Country Status (1)

Country Link
JP (1) JPS5677905A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5687203A (en) * 1979-12-18 1981-07-15 Toppan Printing Co Ltd Manufacture of disk
JPS56127946A (en) * 1980-03-12 1981-10-07 Matsushita Electric Ind Co Ltd Disk-type recording medium
JPS5838125A (en) * 1981-09-01 1983-03-05 Toppan Printing Co Ltd Manufacture of information record carrier

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5271585A (en) * 1975-10-20 1977-06-15 Matsui Kagaku Kougiyoushiyo Kk Photoocuring composition
JPS5375291A (en) * 1976-12-17 1978-07-04 Toagosei Chem Ind Co Ltd Casting composition
JPS5386756A (en) * 1976-10-15 1978-07-31 Philips Nv Plastic information carrier duplicating process and plastic record carrier and molding resin
JPS53104638A (en) * 1977-02-23 1978-09-12 Mitsubishi Rayon Co Ltd Coating composition and preparation of abrasion resistant synthetic resin molded artticle using the same
JPS53116105A (en) * 1977-03-14 1978-10-11 Philips Nv Method and device for making plastic record
JPS55157107A (en) * 1979-05-22 1980-12-06 Matsushita Electric Ind Co Ltd Disc record
JPS55160338A (en) * 1979-05-25 1980-12-13 Philips Nv Optically readable information disk* method and apparatus for fabricating same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5271585A (en) * 1975-10-20 1977-06-15 Matsui Kagaku Kougiyoushiyo Kk Photoocuring composition
JPS5386756A (en) * 1976-10-15 1978-07-31 Philips Nv Plastic information carrier duplicating process and plastic record carrier and molding resin
JPS5375291A (en) * 1976-12-17 1978-07-04 Toagosei Chem Ind Co Ltd Casting composition
JPS53104638A (en) * 1977-02-23 1978-09-12 Mitsubishi Rayon Co Ltd Coating composition and preparation of abrasion resistant synthetic resin molded artticle using the same
JPS53116105A (en) * 1977-03-14 1978-10-11 Philips Nv Method and device for making plastic record
JPS55157107A (en) * 1979-05-22 1980-12-06 Matsushita Electric Ind Co Ltd Disc record
JPS55160338A (en) * 1979-05-25 1980-12-13 Philips Nv Optically readable information disk* method and apparatus for fabricating same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5687203A (en) * 1979-12-18 1981-07-15 Toppan Printing Co Ltd Manufacture of disk
JPS6331847B2 (en) * 1979-12-18 1988-06-27 Toppan Printing Co Ltd
JPS56127946A (en) * 1980-03-12 1981-10-07 Matsushita Electric Ind Co Ltd Disk-type recording medium
JPS5838125A (en) * 1981-09-01 1983-03-05 Toppan Printing Co Ltd Manufacture of information record carrier

Also Published As

Publication number Publication date
JPH0232681B2 (en) 1990-07-23

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