JPH0519909Y2 - - Google Patents
Info
- Publication number
- JPH0519909Y2 JPH0519909Y2 JP1986115519U JP11551986U JPH0519909Y2 JP H0519909 Y2 JPH0519909 Y2 JP H0519909Y2 JP 1986115519 U JP1986115519 U JP 1986115519U JP 11551986 U JP11551986 U JP 11551986U JP H0519909 Y2 JPH0519909 Y2 JP H0519909Y2
- Authority
- JP
- Japan
- Prior art keywords
- protective film
- cassette
- layer
- injection molding
- magnetic tape
- 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
- 230000001681 protective effect Effects 0.000 claims description 49
- 238000001746 injection moulding Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 69
- -1 polyethylene Polymers 0.000 description 9
- 238000001721 transfer moulding Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 239000012768 molten material Substances 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical class OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 150000005846 sugar alcohols Chemical class 0.000 description 2
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- CTKINSOISVBQLD-UHFFFAOYSA-N Glycidol Chemical class OCC1CO1 CTKINSOISVBQLD-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 150000001414 amino alcohols Chemical class 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 229940053195 antiepileptics hydantoin derivative Drugs 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 229960003237 betaine Drugs 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 150000001469 hydantoins Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-O phosphonium Chemical compound [PH4+] XYFCBTPGUUZFHI-UHFFFAOYSA-O 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical class NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986115519U JPH0519909Y2 (US06521211-20030218-C00004.png) | 1986-07-28 | 1986-07-28 | |
DE3724450A DE3724450C2 (de) | 1986-07-23 | 1987-07-23 | Magnetbandkassette und Verfahren zu deren Herstellung |
US07/076,636 US4825320A (en) | 1986-07-23 | 1987-07-23 | Club magnetic tape cassette having a protective layer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986115519U JPH0519909Y2 (US06521211-20030218-C00004.png) | 1986-07-28 | 1986-07-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6324773U JPS6324773U (US06521211-20030218-C00004.png) | 1988-02-18 |
JPH0519909Y2 true JPH0519909Y2 (US06521211-20030218-C00004.png) | 1993-05-25 |
Family
ID=30999247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1986115519U Expired - Lifetime JPH0519909Y2 (US06521211-20030218-C00004.png) | 1986-07-23 | 1986-07-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0519909Y2 (US06521211-20030218-C00004.png) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55125583A (en) * | 1979-03-22 | 1980-09-27 | Matsushita Electric Ind Co Ltd | Magnetic tape cassette |
JPS60224176A (ja) * | 1984-04-20 | 1985-11-08 | Konika Maguneteitsukusu:Kk | 色彩絵柄付きカセットの製造方法 |
-
1986
- 1986-07-28 JP JP1986115519U patent/JPH0519909Y2/ja not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55125583A (en) * | 1979-03-22 | 1980-09-27 | Matsushita Electric Ind Co Ltd | Magnetic tape cassette |
JPS60224176A (ja) * | 1984-04-20 | 1985-11-08 | Konika Maguneteitsukusu:Kk | 色彩絵柄付きカセットの製造方法 |
Also Published As
Publication number | Publication date |
---|---|
JPS6324773U (US06521211-20030218-C00004.png) | 1988-02-18 |