Use of a composition comprising flexible semisemicrystalline polyamides in a coating process
申请人:Arkema France
公开号:EP2272914A2
公开(公告)日:2011-01-12
The invention relates to the use of a composition, noted C, in a coating process for covering articles, said composition comprising, by weight, the total being 100%:
- 50 to 100% of at least one polyamide A1 of formula X.Y/ Z or 6.Y2/Z in which:
X denotes the residues of an aliphatic diamine having from 6 to 10 carbon atoms,
Y denotes the residues of an aliphatic dicarboxylic acid having from 10 to 14 carbon atoms ,
Y2 denotes the residues of an aliphatic dicarboxylic acid having from 15 to 20 carbon atoms and
Z denotes at least one unit chosen from the residues of a lactam, the residues of an α,ω-aminocarboxylic acid, the unit X1, Y1 in which X1 denotes the residues of an aliphatic diamine and Y1 denotes the residues of an aliphatic dicarboxylic acid, the weight ratios Z/(X+Y+Z) and Z/(6+Y2+Z) being between 0 and 15%;
- 0 to 40% of a plasticizer;
- 0 to 50% of an impact modifier; and
- 0 to 50% of a polyamide A2.
The invention also relates to coated articles covered with a layer consisting of the above composition C. This coating is useful for making devices for storing or transferring fluids, in particular in motor vehicles and heavy goods vehicles.
本发明涉及一种组合物(注 C)在覆盖物品的涂层工艺中的使用,所述组合物按重量计包括(总量为 100%)以下物质:
- 50%至 100%的至少一种式 X.Y/ Z 或 6.Y2/Z 的聚酰胺 A1,其中
X 表示具有 6 至 10 个碳原子的脂肪族二胺的残余物、
Y 表示具有 10 至 14 个碳原子的脂肪族二羧酸的残基、
Y2 表示具有 15 至 20 个碳原子的脂肪族二羧酸的残基,以及
Z 表示至少一个单元,选自内酰胺残基、α,ω-氨基羧酸残基、单元 X1、Y1,其中 X1 表示脂肪族二胺残基,Y1 表示脂肪族二羧酸残基,Z/(X+Y+Z)和 Z/(6+Y2+Z)的重量比在 0 至 15%之间;
- 0 至 40%的增塑剂
- 0 至 50%的抗冲改性剂;以及
- 0 至 50%的聚酰胺 A2。
本发明还涉及由上述组合物 C 组成的涂层覆盖物。这种涂层可用于制造储存或输送流体的装置,特别是用于机动车辆和重型货车。