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    • 38. 发明申请
    • THERMOSET MATERIALS WITH IMPROVED IMPACT RESISTANCE
    • 耐冲击性得到改善的热固性材料
    • WO2006077153A2
    • 2006-07-27
    • PCT/EP2006/000564
    • 2006-01-18
    • ARKEMA FRANCEGUERRET, OlivierGERARD, PierrePASCAULT, Jean-PierreBONNET, Anthony
    • GUERRET, OlivierGERARD, PierrePASCAULT, Jean-PierreBONNET, Anthony
    • C08L53/00C08L101/00C08L2666/14C08L2666/02C08L2666/04
    • The present invention relates to a thermoset material with improved impact resistance comprising, by weight: • 99 to 20% of a thermoset resin, • 1 to 80% of an impact modifier comprising at least one copolymer chosen from copolymers comprising A-B-C and A-B blocks, in which: each block is connected to the other by means of a covalent bond or of an intermediate molecule connected to one of the blocks via a covalent bond and to the other block via another covalent bond, A is a copolymer of methyl methacrylate and of at least one water-soluble monomer, C is either (i) a PMMA (homopolymer or copolymer) this PMMA comprising optionally a water-soluble monomer or (ii) a polymer based on vinyl monomers or mixture of vinyl monomers, B is incompatible or partially compatible with the thermoset resin and incompatible with the A block and the optional C block and its glass transition temperature Tg is less than the operating temperature of the thermoset material. The invention also relates to the use of these impact modifiers in thermo- sets.
    • 本发明涉及一种具有改进的抗冲击性的热固性材料,其包含以重量计:·99%至20%的热固性树脂,·1%至80%的抗冲改性剂,其包含至少一种选自 由包含ABC和AB嵌段的共聚物组成,其中:每个嵌段通过共价键或通过共价键与一个嵌段连接的中间分子与另一嵌段连接,并通过另一个共价键与另一个嵌段连接 是甲基丙烯酸甲酯与至少一种水溶性单体的共聚物,C是(i)该PMMA(均聚物或共聚物),该PMMA任选包含水溶性单体或(ii)基于乙烯基单体或聚合物的聚合物 的乙烯基单体,B与热固性树脂不相容或部分相容并且与A嵌段和任选的C嵌段不相容,并且其玻璃化转变温度Tg小于热固性材料的操作温度。 本发明还涉及这些冲击改性剂在热固性聚合物中的用途。