JPS54108894A - Polyester resin composition for electrical insulating encapsulation - Google Patents
Polyester resin composition for electrical insulating encapsulationInfo
- Publication number
- JPS54108894A JPS54108894A JP1623378A JP1623378A JPS54108894A JP S54108894 A JPS54108894 A JP S54108894A JP 1623378 A JP1623378 A JP 1623378A JP 1623378 A JP1623378 A JP 1623378A JP S54108894 A JPS54108894 A JP S54108894A
- Authority
- JP
- Japan
- Prior art keywords
- mol
- unsaturated
- dibasic acid
- polyester resin
- resin composition
- 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
Abstract
PURPOSE: To prepare the title composition having excellent adhesivity to the encapsulation case, and high compatibility to enameled wire, by compounding an unsaturated alkyd obtained from an α,β-unsaturated dibasic acid and dicyclopentadiene, a polymerizable monomer, and a filler.
CONSTITUTION: A composition composed of (A) 100 parts by weight of an unsaturated polyester resin comprising (1) an unsaturated alkyd having an acid value of ≤ 30, and containing 3.5-70 mol%, pref. 40-50 mol% of an α,β-unsaturated dibasic acid (based on total acid components) and 30-80 mol% of dicyclopentadiene (based on the above dibasic acid) and (2) a monomer polymerizable with the component (1), and (B) 100-500 parts by weight of a filler containing ≤0.15 wt% of water. When the molar ratio of the cyclopentadiene to the α,β-unsaturated dibasic acid is less than 30 mol%, the adhesivity of the product becomes poor, and when it exceeds 80 mol%, the trouble of undercure arises.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1623378A JPS54108894A (en) | 1978-02-15 | 1978-02-15 | Polyester resin composition for electrical insulating encapsulation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1623378A JPS54108894A (en) | 1978-02-15 | 1978-02-15 | Polyester resin composition for electrical insulating encapsulation |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54108894A true JPS54108894A (en) | 1979-08-25 |
Family
ID=11910826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1623378A Pending JPS54108894A (en) | 1978-02-15 | 1978-02-15 | Polyester resin composition for electrical insulating encapsulation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54108894A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5022253A (en) * | 1973-06-30 | 1975-03-10 | ||
JPS5024386A (en) * | 1973-06-30 | 1975-03-15 |
-
1978
- 1978-02-15 JP JP1623378A patent/JPS54108894A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5022253A (en) * | 1973-06-30 | 1975-03-10 | ||
JPS5024386A (en) * | 1973-06-30 | 1975-03-15 |
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