JPS5476692A - Unsaturated polyester resin composition - Google Patents

Unsaturated polyester resin composition

Info

Publication number
JPS5476692A
JPS5476692A JP14423077A JP14423077A JPS5476692A JP S5476692 A JPS5476692 A JP S5476692A JP 14423077 A JP14423077 A JP 14423077A JP 14423077 A JP14423077 A JP 14423077A JP S5476692 A JPS5476692 A JP S5476692A
Authority
JP
Japan
Prior art keywords
unsaturated polyester
polyester resin
graphite
resin composition
vol
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
Application number
JP14423077A
Other languages
Japanese (ja)
Inventor
Hidetoshi Shimizu
Toru Nagai
Hidemasa Tamura
Yoshimi Makino
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP14423077A priority Critical patent/JPS5476692A/en
Publication of JPS5476692A publication Critical patent/JPS5476692A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Polymerisation Methods In General (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To prepare an unsaturated polyester resin composition having abrasion characteristics, and useful as a raw material of a magnetic recording head drum, a tape guide, etc., which does not damage magnetic tapes, by adding specific amounts of graphite and granular inorganic filler. CONSTITUTION:An unsaturated polyester resin is incorporated with 5-15 vol% of graphite having a particle diameter of 15-100mu, and 35-55 vol% of a granular inorganic filler such as calcium carbonate, having a granular diameter of 30-100mu. The sum of the amount of graphite and filler is 40-65%. The unsaturated polyester resin is preferably obtained by mixed 5-20% of a theromoplastic resin such as polymethyl methacrylate, and 40-60% of a polymerizable monomer such as diallyl phthalate, to an unsaturated polyester having an acid value of <=70, and composed of a dicarboxylic acid such as maleic acid, and a dihydric alcohol such as diethylene glycol.
JP14423077A 1977-12-01 1977-12-01 Unsaturated polyester resin composition Pending JPS5476692A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14423077A JPS5476692A (en) 1977-12-01 1977-12-01 Unsaturated polyester resin composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14423077A JPS5476692A (en) 1977-12-01 1977-12-01 Unsaturated polyester resin composition

Publications (1)

Publication Number Publication Date
JPS5476692A true JPS5476692A (en) 1979-06-19

Family

ID=15357261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14423077A Pending JPS5476692A (en) 1977-12-01 1977-12-01 Unsaturated polyester resin composition

Country Status (1)

Country Link
JP (1) JPS5476692A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5647968A (en) * 1979-09-25 1981-04-30 Polyplastics Co Tape reel made of synthetic resin
JPS5713610A (en) * 1980-06-30 1982-01-23 Tokyo Shibaura Electric Co Electrically insulating material
FR2501699A1 (en) * 1980-11-29 1982-09-17 Sony Corp SLIP SURFACE MEMBER AND METHOD FOR MANUFACTURING THE SAME
JPS57208678A (en) * 1981-06-17 1982-12-21 Fuji Photo Film Co Ltd Tape cassette
JPS58163042U (en) * 1982-04-23 1983-10-29 ソニー株式会社 Tape guide device for magnetic recording and reproducing equipment
JPS58165756U (en) * 1982-04-28 1983-11-04 アルプス電気株式会社 Travel guide member for recording media
JPS6043038U (en) * 1983-09-01 1985-03-26 アルパイン株式会社 Receiving machine
JPS60191489A (en) * 1984-03-10 1985-09-28 Matsushita Electric Works Ltd Hub of tape reel
JPS6187286A (en) * 1984-10-05 1986-05-02 Sony Corp Tape cassette and cassette mechanism parts
JPS61110388A (en) * 1984-11-02 1986-05-28 Fuji Photo Film Co Ltd Magnetic tape cassette
JPS61129783A (en) * 1984-11-28 1986-06-17 Dai Ichi Seiko Co Ltd Tape guide for magnetic tape cassette
JPS63220491A (en) * 1987-03-10 1988-09-13 Fuji Photo Film Co Ltd Hub for tape
JPH02173993A (en) * 1988-12-26 1990-07-05 Sanshin Kogyo Kk Pancake hub
JPH05120734A (en) * 1991-10-29 1993-05-18 Victor Co Of Japan Ltd Optical disk and production thereof

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0121554B2 (en) * 1979-09-25 1989-04-21 Polyplastics Kk
JPS5647968A (en) * 1979-09-25 1981-04-30 Polyplastics Co Tape reel made of synthetic resin
JPS5713610A (en) * 1980-06-30 1982-01-23 Tokyo Shibaura Electric Co Electrically insulating material
FR2501699A1 (en) * 1980-11-29 1982-09-17 Sony Corp SLIP SURFACE MEMBER AND METHOD FOR MANUFACTURING THE SAME
JPS57208678A (en) * 1981-06-17 1982-12-21 Fuji Photo Film Co Ltd Tape cassette
JPH0472317B2 (en) * 1981-06-17 1992-11-17 Fuji Photo Film Co Ltd
JPS58163042U (en) * 1982-04-23 1983-10-29 ソニー株式会社 Tape guide device for magnetic recording and reproducing equipment
JPS58165756U (en) * 1982-04-28 1983-11-04 アルプス電気株式会社 Travel guide member for recording media
JPS6043038U (en) * 1983-09-01 1985-03-26 アルパイン株式会社 Receiving machine
JPS60191489A (en) * 1984-03-10 1985-09-28 Matsushita Electric Works Ltd Hub of tape reel
JPH0325866B2 (en) * 1984-03-10 1991-04-09 Matsushita Electric Works Ltd
JPS6187286A (en) * 1984-10-05 1986-05-02 Sony Corp Tape cassette and cassette mechanism parts
JPS61110388A (en) * 1984-11-02 1986-05-28 Fuji Photo Film Co Ltd Magnetic tape cassette
JPS61129783A (en) * 1984-11-28 1986-06-17 Dai Ichi Seiko Co Ltd Tape guide for magnetic tape cassette
JPS63220491A (en) * 1987-03-10 1988-09-13 Fuji Photo Film Co Ltd Hub for tape
JPH02173993A (en) * 1988-12-26 1990-07-05 Sanshin Kogyo Kk Pancake hub
JPH05120734A (en) * 1991-10-29 1993-05-18 Victor Co Of Japan Ltd Optical disk and production thereof

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