SU694889A1 - Protective coating for a thermoplastic record carrier - Google Patents
Protective coating for a thermoplastic record carrierInfo
- Publication number
- SU694889A1 SU694889A1 SU772519127A SU2519127A SU694889A1 SU 694889 A1 SU694889 A1 SU 694889A1 SU 772519127 A SU772519127 A SU 772519127A SU 2519127 A SU2519127 A SU 2519127A SU 694889 A1 SU694889 A1 SU 694889A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- protective coating
- para
- record carrier
- toluenesulfonic
- thermoplastic
- Prior art date
Links
Landscapes
- Paints Or Removers (AREA)
Description
1one
Изобретение относитс к области накоплени информации.The invention relates to the field of information accumulation.
Известно защитное покрытие основы носител термопластической записи, состо щее из полимерного вещества , 2. Это покрытие служит в качестве съемной защитной пленки, которую снимают с основы носител термопластической записи непосредственно перед использованием последнего . Недостаток известного защитного покрыти состоит в его малой эластичности.A protective coating of the base of the thermoplastic recording medium is known, consisting of a polymer substance, 2. This coating serves as a removable protective film that is removed from the base of the thermoplastic recording medium just before using the latter. A disadvantage of the known protective coating is its low elasticity.
Известно также защитное покрытие основы носител термопластической записи, содержащее поливиниловый спирт . Это защитное покрытие обладает относительно высокой эластичностью, недостаток его состоит в значительной возможности образовани статического электрического зар да при его съеме с основы носител термопластической записи.It is also known a protective coating of the base of a thermoplastic recording medium containing polyvinyl alcohol. This protective coating has a relatively high elasticity; its disadvantage lies in the considerable possibility of the formation of a static electric charge during its removal from the base of the thermoplastic recording medium.
Цель изобретени - уменьшение возможности образовани статического электрического зар да.The purpose of the invention is to reduce the possibility of generating a static electric charge.
Это достигаетс тем, что в защитное покрытие основы носител термопластической записи введена смесь полиметакриловой кислоты и паратолуолсульфокислоты при следующем соотнощении компонентов: 85- 90 вес. % поливинилового спирта, 6-This is achieved in that a mixture of polymethacrylic acid and para-toluenesulfonic acid is introduced into the protective coating of the base of the thermoplastic recording medium at the following ratio of components: 85- 90 wt. % polyvinyl alcohol, 6-
11 вес. % полиметакриловой кислоты и 4- 9 вес. % паратолуолсульфокислоты.11 wt. % polymethacrylic acid and 4- 9 weight. % para-toluenesulfonic.
Предлагаемое защитное покрытие образует съемную защитную пленку, снимаемую с основы носител термопластической записи непосредственно перед использованием последнего. Покрытие состоит из смеси поливинилового спирта, полиметакриловой кислоты и паратолуолсульфокислоты. ОноThe proposed protective coating forms a removable protective film that is removed from the base of the thermoplastic recording medium immediately before using the latter. The coating consists of a mixture of polyvinyl alcohol, polymethacrylic acid and para-toluenesulfonic acid. It
может, например, содержать 90 вес. % поливинилового спирта, 6 вес. % полиметакриловой кислоты и 4 вес. % паратолуолсульфокислоты . Предлагаемое защитное покрытие в значительной степени уменьщает возможность образовани царапин на основе носител термопластической записи и прилипание к ней пыли, что снижает уровень щума в процессе воспроизведени .may, for example, contain 90 wt. % polyvinyl alcohol, 6 wt. % polymethacrylic acid and 4 wt. % para-toluenesulfonic. The proposed protective coating greatly reduces the possibility of scratching on the basis of the thermoplastic recording medium and dust sticking to it, which reduces the level of the sound during the reproduction process.
При использовании изобретени в значительной степени уменьщаетс возможность образовани статического электрического зар да на основе носител термопластической записи, что также снижает уровень шума при воспроизведении, кроме того, oбeQпeчивaeтc значительна простота процесса изготовлени защитного покрыти основы носител термопластической записи.Using the invention greatly reduces the possibility of forming a static electric charge based on a thermoplastic recording medium, which also reduces the noise level during reproduction, and moreover, significant simplicity of the process of producing a protective coating for the base of a thermoplastic recording carrier results.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772519127A SU694889A1 (en) | 1977-08-24 | 1977-08-24 | Protective coating for a thermoplastic record carrier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772519127A SU694889A1 (en) | 1977-08-24 | 1977-08-24 | Protective coating for a thermoplastic record carrier |
Publications (1)
Publication Number | Publication Date |
---|---|
SU694889A1 true SU694889A1 (en) | 1979-10-30 |
Family
ID=20722791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772519127A SU694889A1 (en) | 1977-08-24 | 1977-08-24 | Protective coating for a thermoplastic record carrier |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU694889A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5020048A (en) * | 1988-12-17 | 1991-05-28 | Taiyo Yuden Co., Ltd. | Optical information recording medium having a protective film which can be stripped |
DE10338134A1 (en) * | 2003-08-15 | 2005-03-17 | Tesa Ag | Use of adhesive films for securing and simultaneously covering and protecting optical storage media |
-
1977
- 1977-08-24 SU SU772519127A patent/SU694889A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5020048A (en) * | 1988-12-17 | 1991-05-28 | Taiyo Yuden Co., Ltd. | Optical information recording medium having a protective film which can be stripped |
DE10338134A1 (en) * | 2003-08-15 | 2005-03-17 | Tesa Ag | Use of adhesive films for securing and simultaneously covering and protecting optical storage media |
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