KR950005872A - 주행성이 우수한 자기기록매체용 폴리에스터 필름 - Google Patents

주행성이 우수한 자기기록매체용 폴리에스터 필름 Download PDF

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Publication number
KR950005872A
KR950005872A KR1019940015619A KR19940015619A KR950005872A KR 950005872 A KR950005872 A KR 950005872A KR 1019940015619 A KR1019940015619 A KR 1019940015619A KR 19940015619 A KR19940015619 A KR 19940015619A KR 950005872 A KR950005872 A KR 950005872A
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South Korea
Prior art keywords
recording medium
particle size
magnetic recording
polyester film
particles
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KR1019940015619A
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English (en)
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KR0137838B1 (ko
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최우
박남규
박상봉
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하기주
주식회사 코오롱
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Priority to KR1019940015619A priority Critical patent/KR0137838B1/ko
Publication of KR950005872A publication Critical patent/KR950005872A/ko
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Publication of KR0137838B1 publication Critical patent/KR0137838B1/ko

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/181—Acids containing aromatic rings
    • C08G63/183—Terephthalic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/181—Acids containing aromatic rings
    • C08G63/185—Acids containing aromatic rings containing two or more aromatic rings
    • C08G63/187—Acids containing aromatic rings containing two or more aromatic rings containing condensed aromatic rings
    • C08G63/189—Acids containing aromatic rings containing two or more aromatic rings containing condensed aromatic rings containing a naphthalene ring
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/013—Fillers, pigments or reinforcing additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/005—Additives being defined by their particle size in general

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

본 발명은 필름 표면돌기를 형성하는 입자의 입도분포가 서로 다른 두종 이상의 입자를 함유하므로써 주행성이 향상된 자기기록매체용 폴리에스터 필름에 관한 것이다.

Description

주행성이 우수한 자기기록매체용 폴리에스터 필름
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (4)

  1. 에틸렌테레프탈레이트 또는 에틸렌 2,6-나프탈레이트 구조가 주반복단위인 자기기록매체용 폴리에스터필름에 있어서, 필름의 표면돌기를 형성하는 입자의 입도분포가 서로 다른 두종 이상의 입자를 함유함을 특징으로 하는 주행성이 우수한 자기기록매체용 폴리에스터 필름.
  2. 제1항에 있어서, 상기 서로 다른 두종 이상의 입자의 입도분포는 다음 식(Ⅰ)로 표현되는 입도분포가 0.3이상 차이남을 특징으로 하는 주행성이 우수한 자기기록매체용 폴리에스터 필름.
    d25/d75(Ⅰ)
    (여기서 d는 총 100%의 누적분포중 최대입경치로부터 25%인 지점의 입경치이고, d는 누적 75%인 지점의 평균입경치이다.)
  3. 제1항에 있어서, 상기 입도분포가 사로 다른 입자들의 평균 입경(d50)은 같거나 다를 수 있으며, 다를 경우 그 차이가 0.5㎛이내임을 특징으로 하는 주행성이 우수한 자기기록매체용 폴리에스터 필름.
  4. 제1항에 있어서, 상기 입자는 구형 실리카, 탄산칼슘, 다공성 실리카, 알루미나, 실리카-알루미나, 티타니아, 지르코니아, 가교고분자 미립자 중에서 선택된 2종 이상임을 특징으로 하는 주행성이 우수한 자기기록매체용 폴리에스터 필름.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940015619A 1993-08-30 1994-06-30 주행성이 우수한 자기기록매체용 폴리에스터 필름 KR0137838B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940015619A KR0137838B1 (ko) 1993-08-30 1994-06-30 주행성이 우수한 자기기록매체용 폴리에스터 필름

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR930017027 1993-08-30
KR93-17027 1993-08-30
KR1019940015619A KR0137838B1 (ko) 1993-08-30 1994-06-30 주행성이 우수한 자기기록매체용 폴리에스터 필름

Publications (2)

Publication Number Publication Date
KR950005872A true KR950005872A (ko) 1995-03-20
KR0137838B1 KR0137838B1 (ko) 1998-05-01

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KR1019940015619A KR0137838B1 (ko) 1993-08-30 1994-06-30 주행성이 우수한 자기기록매체용 폴리에스터 필름

Country Status (1)

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KR (1) KR0137838B1 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100558566B1 (ko) * 1998-01-03 2006-06-16 도레이새한 주식회사 자기기록매체용 이축연신 폴리에스테르 필름
KR20210064907A (ko) 2019-11-26 2021-06-03 이연우 버스 공기청정 시스템

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100558566B1 (ko) * 1998-01-03 2006-06-16 도레이새한 주식회사 자기기록매체용 이축연신 폴리에스테르 필름
KR20210064907A (ko) 2019-11-26 2021-06-03 이연우 버스 공기청정 시스템

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Publication number Publication date
KR0137838B1 (ko) 1998-05-01

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