JPS5441991A - Unsaturated polyester resin composition for pressure molding - Google Patents

Unsaturated polyester resin composition for pressure molding

Info

Publication number
JPS5441991A
JPS5441991A JP10774477A JP10774477A JPS5441991A JP S5441991 A JPS5441991 A JP S5441991A JP 10774477 A JP10774477 A JP 10774477A JP 10774477 A JP10774477 A JP 10774477A JP S5441991 A JPS5441991 A JP S5441991A
Authority
JP
Japan
Prior art keywords
resin composition
unsaturated polyester
particle size
pressure molding
polyester resin
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
JP10774477A
Other languages
Japanese (ja)
Inventor
Akio Nishikawa
Hiroshi Suzuki
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10774477A priority Critical patent/JPS5441991A/en
Publication of JPS5441991A publication Critical patent/JPS5441991A/en
Pending legal-status Critical Current

Links

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Macromonomer-Based Addition Polymer (AREA)

Abstract

PURPOSE: To prepare an unsaturated polyester resin composition for pressure molding, useful as insulating materials and structural material resins, and giving excellent warpage resistance and crack resistance, by using calcium carbonate and silica sand having specific particle size, etc., and short fibers as fillers.
CONSTITUTION: (A) An unsaturated polyester prepared from an unsaturated dibasic acid and a diol is compounded with (B) a vinylferroceneIWIII as a crosslinking agent, (C) calcium carbonate having particle size of 0.5W80μ, (D) sillica sand having particle size of 40W1,000μ and (E) short fibers having length of 0.2W 8mm (e.g. glass fibers, etc.) wherein (C)/(D)=0.7W10,[(C)+(D)/(A)=1.5W 7, and (E)/[(A)+(C)+(D)+(E)]=0.01W0.15. A polymerization catalyst (e.g. benzoyl peroxide, etc.) is added to the above composition to give the desired resin composition.
COPYRIGHT: (C)1979,JPO&Japio
JP10774477A 1977-09-09 1977-09-09 Unsaturated polyester resin composition for pressure molding Pending JPS5441991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10774477A JPS5441991A (en) 1977-09-09 1977-09-09 Unsaturated polyester resin composition for pressure molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10774477A JPS5441991A (en) 1977-09-09 1977-09-09 Unsaturated polyester resin composition for pressure molding

Publications (1)

Publication Number Publication Date
JPS5441991A true JPS5441991A (en) 1979-04-03

Family

ID=14466849

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10774477A Pending JPS5441991A (en) 1977-09-09 1977-09-09 Unsaturated polyester resin composition for pressure molding

Country Status (1)

Country Link
JP (1) JPS5441991A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001247756A (en) * 2000-03-02 2001-09-11 Showa Highpolymer Co Ltd Unsaturated polyester resin composition
JP2001247757A (en) * 2000-03-06 2001-09-11 Showa Highpolymer Co Ltd Sliding unsaturated polyester resin composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001247756A (en) * 2000-03-02 2001-09-11 Showa Highpolymer Co Ltd Unsaturated polyester resin composition
JP2001247757A (en) * 2000-03-06 2001-09-11 Showa Highpolymer Co Ltd Sliding unsaturated polyester resin composition

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