PROBLEM TO BE SOLVED: To provide a fitting product formed from a thermoplastic resin composition which is significantly reduced with squeak noise generated when parts rub against each other and maintain the effect on reducing the squeak noise even when placed under high temperature for a long period of time, and is excellent in impact resistance and mold appearance.SOLUTION: There is provided a fitting product formed from a thermoplastic resin composition manufactured by blending 5 to 100 mass% of (A) a rubber reinforced styrenic resin made by polymerizing a vinyl monomer (A2) in the presence of an ethylene α-olefinic rubbery polymer (A1), 0 to 95 mass% of (B) an aromatic vinyl polymer, 0.1 to 30 pts.mass of (C) at least one ethylenic polymer selected from low molecular weight polyethylene oxide having a number average molecular weight of 800 to 10,000 (c1), ultra high molecular weight polyethylene having an average molecular weight of 400,000 to 6,500,000 (c2) and polytetrafluoroethylene (c3) having an average molecular weight of 0.1-100 μm based on total 100 pts.mass of the (A) component and the (B) component, and further (D) a graft polymer obtained by polymerizing a vinyl monomer containing a vinyl monomer (D2) formed from the vinyl monomer in the presence of a conjugated diene-based rubbery polymer (D1) in a range of (A1):(D1)=5 to 95: 95 to 5.SELECTED DRAWING: None
【課題】部品が接触し擦れあうときに発生する軋み音が著しく低減され、かつ高温下に長時間置かれても軋み音低減効果が維持され、耐衝撃性及び成形品表面外観性にも優れた熱可塑性樹脂組成物製嵌合部品を提供する。【解決手段】(A)エチレン・α−オレフィン系ゴム質重合体(A1)の存在下にビニル系単量体(A2)を重合してなるゴム強化スチレン系樹脂5〜100質量%、(B)芳香族ビニル系重合体0〜95質量%、及び上記(A)成分と(B)成分の合計100質量部に対して、(C)数平均分子量が800〜10,000の低分子量酸化ポリエチレン(c1)、平均分子量が40万〜650万の超高分子量ポリエチレン(c2)、平均粒子径が0.1〜100μmのポリテトラフルオロエチレン(c3)から選ばれた少なくとも1種のエチレン系重合体が0.1〜30質量部配合されており、更に、(D)共役ジエン系ゴム質重合体(D1)の存在下にビニル単量体からなるビニル系単量体(D2)を重合してなるグラフト重合体を、上記、(A1):(D1)=5〜95:95〜5の範囲で配合してなることを特徴とする熱可塑性樹脂組成物製嵌合部品である。【選択図】なし
FITTING PRODUCT FORMED FROM THERMOPLASTIC RESIN COMPOSITION
熱可塑性樹脂組成物製嵌合品
2017-11-09
Patent
Electronic Resource
Japanese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / C08J Verarbeitung , WORKING-UP / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind |
MOLDED PRODUCT MANUFACTURED FROM THERMOPLASTIC RESIN COMPOSITION
European Patent Office | 2025
|