公开(公告)号：US20040023037A1

公开(公告)日：2004-02-05

申请号：US10439332

申请日：2003-09-17

Applicant: ATOFINA

Inventor： Martin Baumert ,  Romain Severac

IPC: B32B027/00

CPC classification number: B32B27/08 ,  C08F255/02 ,  C09J151/06 ,  Y10T428/3154 ,  Y10T428/31786

Abstract: The present invention relates to a multilayer structure comprising: a tie layer based on a graft polymer resulting from the polymerization of at least one alkyl (meth)acrylate in the presence of a polyolefin and directly attached to the latter; and a layer of a polymer chosen from polyolefins, acrylic polymers and fluoropolymers. The polymerization of the alkyl (meth)acrylate in the presence of the polyolefin may be carried out in an extruder in which the polyolefin is in the melt. A radical initiator, such as a peroxide, is also added. The thickness of this structure may be of the order of 100 nullm up to several mm or cm. The present invention also relates to a structure comprising, in this order: a layer of a polymer chosen from polyolefins, acrylic polymers and fluoropolymers; a layer of the aforementioned tie; and a layer of a polymer chosen from polyolefins, acrylic polymers and fluoropolymers; the layers adhering to one another. Preferred structures are those in which the layers on each side of the tie are different. The present invention also relates to a structure comprising, in this order: a layer of a polymer chosen from polyolefins, acrylic polymers and fluoropolymers; a layer of the aforementioned tie; a layer of a polymer chosen from polyolefins, acrylic polymers and fluoropolymers; a layer of the aforementioned tie; and a layer of a polymer chosen from polyolefins, acrylic polymers and fluoropolymers; the layers adhering to one another. Preferred structures are those in which the central layer is different from the outermost layers, these outermost layers being able to be identical or different. The present invention also relates to devices for transferring or storing fluids, and more particularly to pipes, tanks, ducts, bottles and containers formed from the above structures.

Abstract translation: 本发明涉及一种多层结构，其包括：在聚烯烃存在下由至少一种（甲基）丙烯酸烷基酯聚合而得到的接枝聚合物的粘结层，并直接与其接触; 以及选自聚烯烃，丙烯酸聚合物和含氟聚合物的聚合物层。 在聚烯烃存在下，（甲基）丙烯酸烷基酯的聚合可以在其中聚烯烃在熔体中的挤出机中进行。 还加入自由基引发剂，如过氧化物。 该结构的厚度可以是大约100mum到几mm或cm的数量级。 本发明还涉及一种结构，其按以下顺序：一层选自聚烯烃，丙烯酸聚合物和含氟聚合物的聚合物; 上述领带的一层; 和选自聚烯烃，丙烯酸聚合物和含氟聚合物的聚合物层; 这些层彼此粘附。 优选的结构是其中每个侧面上的层不同的那些结构。 本发明还涉及一种结构，其按以下顺序：一层选自聚烯烃，丙烯酸聚合物和含氟聚合物的聚合物; 上述领带的一层; 选自聚烯烃，丙烯酸聚合物和含氟聚合物的聚合物层; 上述领带的一层; 和选自聚烯烃，丙烯酸聚合物和含氟聚合物的聚合物层; 这些层彼此粘附。 优选的结构是其中心层与最外层不同的结构，这些最外层能够相同或不同。 本发明还涉及用于转移或储存流体的装置，更具体地涉及由上述结构形成的管，罐，管道，瓶和容器。