Electrically insulating resin composition and laminate sheet
a technology of electrically insulating resin and composition, which is applied in the direction of synthetic resin layered products, woven fabrics, metal layered products, etc., can solve the problems of reduced tensile strength or the like, insufficient heat resistance, and relatively difficult to achieve excellent heat resistance and excellent tracking resistance, and achieve excellent electrical insulation properties. , excellent heat resistance, excellent heat resistan
Inactive Publication Date: 2013-05-09
NITTO SHINKO KK +1
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The present invention is about an electrically insulating resin composition that has great heat resistance and insulation properties. Additionally, the laminate sheet made from this composition has excellent heat resistance and doesn't peel between layers.
Problems solved by technology
Unfortunately, the electrically insulating resin composition has tracking resistance as electrical insulation properties which is demanded between one coil wire and another coil wire in the motor, or the like, while tensile strength or the like may be reduced due to heat generated by the coil wire or the like.
Thus, heat resistance is not always sufficient.
Namely, the electrically insulating resin composition is relatively difficult to have excellent heat resistance and excellent tracking resistance at the same time.
Unfortunately, in the laminate sheet, mechanical properties such as tensile strength may be reduced by heat generated from the coil wire or the like in the motor, for example, and heat resistance is not always sufficient.
Namely, the laminate sheet is relatively difficult to satisfy suppression in interlayer peel between the sheet material and the resin layer and to satisfy excellent heat resistance at the same time.
Method used
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Examples
Experimental program
Comparison scheme
Effect test
example 1
[0120]As the polysulfone resin, a polyether polyphenylsulfone resin (PES) resin (made by Solvay Advanced Polymers, L. L. C., trade name “Radel A-300A”) including a plurality of sulfonyl groups, a plurality of ether bonds, and a plurality of aromatic hydrocarbons was used.
[0121]Meanwhile, as the polyamide resin, a polyamide (PA) resin comprising a terephthalic acid unit and a nonanediamine unit (PAST made by Kuraray Co., Ltd., trade name “Genestar N1000A”) was used.
[0122]The PES resin was mixed with the PA resin at a mass ratio of PES / PA=95 / 5 using a twin screw kneader (made by TECHNOVEL CORPORATION) at 310° C. to produce an electrically insulating resin composition.
example 2
[0123]An electrically insulating resin composition was produced in the same manner as in Example 1 except that the mass ratio of the PES resin to the PA resin was PES / PA=90 / 10.
example 3
[0124]An electrically insulating resin composition was produced in the same manner as in Example 1 except that the mass ratio of the PES resin to the PA resin was PES / PA=80 / 20.
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Abstract
The present invention provides an electrically insulating resin composition including a polysulfone resin including a plurality of sulfonyl groups in the molecule and a polyamide resin, wherein the proportion of the polyamide resin is 1 to 45% by mass. The present invention also provides a laminate sheet obtained by bonding a plurality of sheet materials with a resin composition layer interposed therebetween, wherein the resin composition layer includes a polysulfone resin including a plurality of sulfonyl groups in the molecule and a polyamide resin, and the proportion of the polyamide resin is 1 to 45% by mass.
Description
TECHNICAL FIELD[0001]The present invention relates to an electrically insulating resin composition. The present invention also relates to a laminate sheet formed of a plurality of sheet materials bonded with a resin composition layer obtained by forming the resin composition into a sheet-like shape being interposed between the sheet materials.BACKGROUND ART[0002]Various electrically insulating resin compositions are known in the related art. For example, an electrically insulating resin composition used by arranging the composition around a coil wire, which is a heating body in a motor, is known.[0003]As such an electrically insulating resin composition, specifically, for example, an electrically insulating resin composition comprising a polyphenylene sulfide resin having an aromatic hydrocarbon and a plurality of sulfide bonds (—S—) in the molecule and a vinyl copolymer, and formed into a sheet-like shape has been proposed (Patent Document 1).[0004]Unfortunately, the electrically i...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C09D181/06
CPCC08L77/06C08L81/06H01B3/301Y10T428/2848H01B3/308C09D181/06H01B3/305B32B27/12B32B2262/0269B32B2307/206B32B2307/54B32B2457/08B32B27/08B32B27/286B32B27/34B32B2250/40B32B2270/00B32B2307/306B32B2457/00Y10T428/31533Y10T442/674B32B5/022C08J5/18C08J2377/06C08J2381/08
InventorKIHARA, YASUYUKITAMAI, AKIRAUKEI, HIROICHIKASAGI, TOMOYUKIYAMAMOTO, MIZUKI
OwnerNITTO SHINKO KK