摘要:
The invention relates to a composition based on an impact-resistant thermoplastic polyamide resin, comprising as a blend: - from 60 to 98 wt% of polyamide resin (A) and - from 2 to 40 wt% of a blend of at least one graft copolymer with polyamide blocks (B) composed of a polyolefin backbone and at least one polyamide graft in which the grafts are attached to the backbone by the residues of an unsaturated monomer (X) having a functional group capable of reacting with an amine-terminated polyamide, the residues of the unsaturated monomer (X) being attached to the backbone by grafting or copolymerization through its double bond, and a non-reactive ethylene polymer (C) that is miscible with (B) and has a density below 0.960 g/cm3. This composition has improved impact resistance properties and also a satisfactory fluidity. The invention also relates to the process of obtaining said composition and also to its use for manufacturing products or parts obtained by injection moulding or extrusion.
摘要:
The présent invention pertains to the use of nanotubes of at least one chemical élément chosen from éléments of groups IHa, IVa and Va of the periodic table to improve the high température mechanical properties of a polymeric matrix comprising at least one semi-crystalline thermoplastic polymer.
摘要:
L'invention concerne un liant comprenant un mélange de polyéthylène (abrégé PE) greffé, de polystyrène (abrégé PS) choc ou cristal, greffé ou non greffé, et éventuellement du PE non greffé. De préférence, le PE greffé est composé de deux PE différents cogreffés. Ce liant est utile pour fabriquer des structures multicouches destinées au domaine du Bâtiment Travaux Publics (BTP), plus particulièrement au domaines des panneaux d'aluminium, des tubes multicouches, mais aussi au domaine de l'emballage.
摘要翻译:排除弹性体的粘合剂包含(重量%):10-79%的聚乙烯(PE)(I),即密度为0.87-0.91g / cm 3>的极低密度PE(VLDPE)或 其中(Ib)与(Ia)不同的至少两种PE(Ia)和(Ib)的混合物被接枝或(Ia)和(Ib)的混合物是(共)接枝的,(I ),(Ia)或(Ib)是包含乙烯单体(> = 51%)和α-烯烃作为共聚单体的PE均聚物和共聚物; 21-50%的任选接枝聚苯乙烯(II)休克或晶体; 和任选的通过齐格勒纳塔催化得到的非接枝PE(III)。 排除弹性体的粘合剂包括(重量%):10-79%的密度为0.87-0.91g / cm 3的极低密度PE(VLDPE)的聚乙烯(PE)(I)或 至少两种聚乙烯(Ia)和(Ib)的混合物,其中(Ib)即密度为0.87-0.91g / cm 3>的VLDPE与(Ia)不同,(I)是接枝的,或 (Ia)和(Ib)是(共)接枝的,(I),(Ia)或(Ib)是含有至少51%的乙烯单体和α-烯烃的丙烯均聚物和共聚物,例如丙烯,1-丁烯, 1-戊烯,3-甲基-1-丁烯,1-己烯,4-甲基-1-戊烯,3-甲基-1-戊烯,1-辛烯,1-癸烯,1-十二碳烯,1-十四碳烯,1-十六碳烯, 十八碳烯,1-二十碳烯,1-二十一碳烯,1-二十四碳烯,1-二十六碳烯,1-二十碳烯和/或1-三苯醚烯,作为共聚单体; 21-50%的任选接枝聚苯乙烯(II)休克或晶体; 和任选的通过齐格勒纳塔催化得到的非接枝PE(III)。
摘要:
The invention relates to a polyhydroxyalkanoic acid (PHA) composition, further including: (A) a core-shell elastomer compound; (B) and an olefin copolymer including an ethylenic monomer having an epoxy function. Said composition exhibits excellent impact properties, in particular to cold. The invention also relates to a method for manufacturing said composition and to parts manufactured from said composition.
摘要:
The invention relates to a method for manufacturing a thermoplastic composition including: a polyester resin (c); a mixture including a copolymer (a) of an α-olefin and of a monomer having an ethylenic unsaturation and an epoxy function, as well as a core-shell compound (b); characterized in that said method includes: a first step of manufacturing the mixture of (a) and (b) by extrusion at a temperature at which the copolymer (a) is in the molten state and at a maximum temperature of 60 to 180°C; a second step of manufacturing the thermoplastic composition by extrusion or by mixing the polyester resin (c) with the mixture of (a) and (b) produced in the first step.