Abstract:
The invention relates to an adhesive composition comprising at least one polyamide noted A, with a mean number of carbon atoms per nitrogen atom, noted CA, of between 4 and 8.5 and advantageously between 4 and 7; at least one polyamide noted B, with a melting point of greater than or equal to 180° C. and a mean number of carbon atoms per nitrogen atom, noted CB, of between 7 and 10 and advantageously between 7.5 and 9.5; at least one polyamide noted C, with a mean number of carbon atoms per nitrogen atom, noted CC, of between 9 and 18 and advantageously between 10 and 18; at least 50% by weight of the said composition being formed from one or more polyamides chosen from polyamides A, B and C, the mass-weighted mean of the heats of fusion of these polyamides in the said composition being greater than 25 J/g (DSC), the mean number of carbon atoms per nitrogen atom of the polyamides A, B and C also satisfying the following strict inequality: CA
Abstract translation:本发明涉及一种粘合剂组合物,其包含至少一种注明为A的聚酰胺,每个氮原子的平均碳原子数为CA,为4-8,有利地为4-7; 至少一种聚酰胺指出B,其熔点大于或等于180℃,每个氮原子的碳原子数,表示CB为7至10,有利地为7.5至9.5; 至少一种聚酰胺注意到C,每个氮原子的碳原子数,表示CC在9和18之间,有利地在10和18之间; 所述组合物的至少50重量%由一种或多种选自聚酰胺A,B和C的聚酰胺形成,所述组合物中这些聚酰胺的熔融热的质量加权平均值大于25J / g (DSC)中,聚酰胺A,B和C的每个氮原子的平均碳原子数也满足以下严格不等式:CA
Abstract:
An adhesive composition including predominantly one or two polyamide(s) having units chosen from: at least one unit denoted A having an average number of carbon atoms per nitrogen atom, denoted CA, ranging from 4 to 8.5, advantageously from 4 to 7; at least one unit denoted B having an average number of carbon atoms per nitrogen atom, denoted CB, ranging from 7 to 10, advantageously from 7.5 to 9.5; and at least one unit denoted C having an average number of carbon atoms per nitrogen atom, denoted CC, ranging from 9 to 18, advantageously from 10 to 18, and to the use thereof.