JPS6473523A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS6473523A JPS6473523A JP22947887A JP22947887A JPS6473523A JP S6473523 A JPS6473523 A JP S6473523A JP 22947887 A JP22947887 A JP 22947887A JP 22947887 A JP22947887 A JP 22947887A JP S6473523 A JPS6473523 A JP S6473523A
- Authority
- JP
- Japan
- Prior art keywords
- epoxy group
- compd
- vinyl
- binder
- vinyl copolymer
- 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.)
- Pending
Links
Landscapes
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To obtain excellent durability by using a vinyl copolymer having an epoxy group and polyurethane having an acidic phosphoric acid group as a binder. CONSTITUTION:The vinyl copolymer having the epoxy group in the molecule and the polyurethane resin having the compd. expressed by formula I in the molecule are incorporated as the binder into a magnetic layer. In formula I, M denotes hydrogen, alkali metal or hydrocarbon group. The vinyl copolymer having the epoxy group to be used as the binder consists mainly of a vinyl compd. which is formed by copolymerization of the epoxy group introduced therein in order to form a crosslinking structure and a monomer having double bonds copolymerizable with the vinyl compd. The good crosslinking structure is thereby formed without being affected by moisture at the time of reaction and the excellent durability is obtd.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22947887A JPS6473523A (en) | 1987-09-16 | 1987-09-16 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22947887A JPS6473523A (en) | 1987-09-16 | 1987-09-16 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6473523A true JPS6473523A (en) | 1989-03-17 |
Family
ID=16892803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22947887A Pending JPS6473523A (en) | 1987-09-16 | 1987-09-16 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6473523A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5491029A (en) * | 1993-10-07 | 1996-02-13 | Minnesota Mining And Manufacturing Company | Magnetic recording medium having a binder composition comprising phosphonated polyurethane and a vinyl chloride copolymer with ammonium functionalities |
US5501903A (en) * | 1994-07-29 | 1996-03-26 | Minnesota Mining And Manufacturing Company | Magnetic recording medium having a binder system including a non halogenated vinyl polymer and a polyurethane polymer each with specified pendant groups |
US5674604A (en) * | 1995-03-31 | 1997-10-07 | Minnesota Mining And Manufacturing Company | Magnetic recording medium comprising magnetic particles, binder, and a non halogenated vinyl oligomer dispersant |
-
1987
- 1987-09-16 JP JP22947887A patent/JPS6473523A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5491029A (en) * | 1993-10-07 | 1996-02-13 | Minnesota Mining And Manufacturing Company | Magnetic recording medium having a binder composition comprising phosphonated polyurethane and a vinyl chloride copolymer with ammonium functionalities |
US5501903A (en) * | 1994-07-29 | 1996-03-26 | Minnesota Mining And Manufacturing Company | Magnetic recording medium having a binder system including a non halogenated vinyl polymer and a polyurethane polymer each with specified pendant groups |
US5712345A (en) * | 1994-07-29 | 1998-01-27 | Minnesota Mining And Manufacturing Company | Binder system for magnetic media |
US5674604A (en) * | 1995-03-31 | 1997-10-07 | Minnesota Mining And Manufacturing Company | Magnetic recording medium comprising magnetic particles, binder, and a non halogenated vinyl oligomer dispersant |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2071196A1 (en) | Recombinant expression vectors and purification methods for thermus thermophilus dna polymerase | |
ATE168132T1 (en) | STRUCTURE GENES OF PNEUMOCOCCAL PROTEIN | |
JPS5296791A (en) | Preparation of composition including enzymes or microorganisms | |
EP0217660A3 (en) | Poly (alpha hydroxy acid) copolymers | |
DE69026716D1 (en) | NUCLEIC ACID FRAGMENTS FROM A GENOME OF A SUITABLE MYCOBACTERIUM, THEIR USE FOR DIAGNOSIS OF MYCOBACTORY INFECTIONS AND PLASMIDES CONTAINING THESE FRAGMENTS | |
JPS5334690A (en) | Cation exchange membrane and production thereof | |
JPS6473523A (en) | Magnetic recording medium | |
CA2032669A1 (en) | Process for incorporating o-hydroxyphenyl-s-triazines in organic polymers | |
JPS52139199A (en) | Novel epoxy resin compositions | |
JPS6473524A (en) | Magnetic recording medium | |
JPS5738823A (en) | Ion-exchange membrane and its production | |
JPS53144478A (en) | Hydrophilic agent | |
JPS5620026A (en) | Production of 2,2,4-trimethyl-1,2-dihydroquinoline polymer | |
JPS5721427A (en) | Prepreg | |
JPS5649760A (en) | Water-dispersed coating composition | |
JPS6472317A (en) | Magnetic recording medium | |
JPS6472315A (en) | Magnetic recording medium | |
EP0204953A3 (en) | Process for scavenging free residual monomer in aqueous media | |
JPS5560542A (en) | Polyolefin composition | |
JPS52130604A (en) | Production of magnetic recording media | |
JPS5417988A (en) | Improved method of producing olefin polymer | |
JPS5490388A (en) | High solid resin composition | |
FR2233334A1 (en) | Ion exchange resin contg. adsorbed invertase - bonded firmly to the resin for saccharose hydrolysis | |
JPS6474252A (en) | Matted film | |
JPS6473526A (en) | Magnetic recording medium |