阅读说明：本技术 包含金属以及聚酰胺和丙烯酸酯的聚合物层的层压制件 (Laminate comprising metal and polymer layers of polyamide and acrylate ) 是由 P·斯皮斯 P·德斯保斯 J·西蒙 于 2019-09-11 设计创作，主要内容包括：本发明涉及一种层压制件,其包含至少一种第一金属的至少一个第一层和聚合物组合物(PZ)的至少一个其他层,以及制备本发明的层压制件的方法。(The present invention relates to a laminate comprising at least one first layer of at least one first metal and at least one other layer of a polymer composition (PZ), and to a process for preparing the laminate of the invention.)

1. A laminate comprising at least one first layer of at least one first metal and at least one other layer of a polymer composition (PZ), wherein the polymer composition (PZ) comprises the following components:

(A) at least one polyamide,

(B) at least one first copolymer obtainable by polymerizing at least the following components:

(B1) at least one first C₂-C₂₀An olefin, and

(B2) at least one second C₂-C₂₀An olefin(s) is (are) present,

wherein components (B1) and (B2) are different from each other,

(C) at least one second copolymer obtainable by polymerizing at least the following components:

(C1) at least one third C₂-C₂₀An olefin, and

(C2) at least one acrylic acid derivative.

2. The laminate of claim 1, wherein the laminate further comprises at least one second layer of at least one second metal, and wherein the at least one first layer is connected to the at least one second layer through the at least one other layer.

3. Laminate according to claim 1 or 2, wherein component (a) is selected from PA 6, PA 6.6, PA 6.10, PA 6.12, PA12, PA 6.36, PA 6/6.6, PA 6/6I6T, PA 6/6I, PA 6/6.36 and PA 6/6T.

4. The laminate of any one of claims 1 to 3, wherein component (B1) is selected from the group consisting of ethylene, propylene, 1-butene, 2-butene, octene, and butadiene.

5. The laminate of any one of claims 1 to 4, wherein component (B2) is selected from the group consisting of ethylene, propylene, 1-butene, 2-butene, octene, and butadiene.

6. The laminate of any one of claims 1 to 5, wherein component (C1) is selected from the group consisting of ethylene, propylene, 1-butene, 2-butene, octene, and butadiene.

7. The laminate of any one of claims 1 to 6, wherein component (C2) is selected from the group consisting of methyl acrylate, butyl acrylate, and acrylic acid.

8. The laminate of any one of claims 1 to 7, wherein component (B) is obtainable by polymerizing further component (B4) maleic anhydride.

9. The laminate of any one of claims 1 to 8, wherein the polymer composition (PZ) comprises from 40 to 99 weight percent of component (A) based on the sum of the weight percentages of components (A), (B) and (C).

10. The laminate as claimed in any one of claims 1 to 9, wherein the at least one first metal is selected from iron, aluminium, copper, nickel and magnesium and alloys thereof.

11. The laminate of any one of claims 1 to 10, wherein the at least one first layer has a thickness of from 0.1mm to 0.6mm, and/or wherein the at least one further layer has a thickness of from 0.02 to 2 mm.

12. A method of making the laminate of any one of claims 1 to 11, comprising the steps of:

a) providing a thin layer of a polymer composition (PZ) comprising:

(A) at least one polyamide,

(B) at least one first copolymer obtainable by polymerizing at least the following components:

(B1) at least one first C₂-C₂₀An olefin, and

(B2) at least one second C₂-C₂₀An olefin(s) is (are) present,

wherein components (B1) and (B2) are different from each other,

(C) at least one second copolymer obtainable by polymerizing at least the following components:

(C1) at least one third C₂-C₂₀An olefin, and

(C2) at least one acrylic acid derivative,

b) heating a first sheet of at least one first metal,

c) pressing the heated first sheet from step b) with the thin layer provided in step a) to obtain a laminate.

13. The method of claim 12, wherein step b) comprises heating the first sheet to a temperature of 150 ℃ to 350 ℃.

14. The method according to claim 12 or 13, wherein the heating of the first sheet in step b) is performed by induction means.

15. A method according to any one of claims 12 to 14, wherein step a) comprises providing the lamina by extrusion.

Examples

The following components were used:

polyamide

P1: nylon-6 (Ultramid B24N from BASF SE)

Copolymer

Co 1: lucalen a2700 m (basell); ethylene/n-butyl acrylate copolymer (MFR (190 ℃/2.16kg, according to ISO 1133)7.2g/10min)

Co 2: lucalen a2540 d (basell); ethylene/n-butyl acrylate copolymer (MFR (190 ℃/2.16kg, according to ISO 1133)0.25g/10min)

Co 3: lucalen a2910 m (basell); ethylene/tert-butyl acrylate/acrylic acid copolymer (MFR (190 ℃/2.16kg according to ISO 1133)7g/10min)

Co 4: exxelor 1801(Exxon Chemicals); ethylene/propylene/MA copolymers;

co 5: lupolen 1800s (Basell); ethylene/propylene/MA copolymers; LDPE (Low density polyethylene)

Additive:

a1: irganox (antioxidant)

A2: talc

First and second metals

Steel

Preparation of the laminate

The polymers specified in table 1 were mixed in the amounts specified in table 1 using a ZE 25A UXTI twin screw extruder and extruded into thin layers having a thickness of 430 μm and a width of 53 cm. The amounts specified in table 1 are all in weight%.

Before preparation, thin layers of polymer composition (PZ) and first and second sheets of steel were stored at 80 ℃ for 7 days. To prepare the laminate, a first sheet of steel and a second sheet of steel are inserted into the apparatus, and a thin layer of the polymer composition is inserted between the first sheet and the second sheet. The sheet was pressed and induction heated to a temperature of 240 ℃ within 3 seconds, held at this temperature for 7 seconds. The laminate was then cooled with compressed air for 20 seconds and the compaction force was released during further cooling to room temperature.

The resulting laminate was cut into strips having a width of 40mm and subjected to peel test according to ASTM D1876. The results can also be seen in table 1.

TABLE 1

The laminates of the present invention have particularly good release properties.