阅读说明：本技术 由金属和由热塑性聚氨酯制成的聚合物中间层组成的层压制件 (Laminate consisting of metal and polymer intermediate layer made of thermoplastic polyurethane ) 是由 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,所述层压制件包括至少一种第一金属的至少一层第一层和聚合物组合物(PZ)的至少一层其它层,以及一种制备本发明的层压制件的方法。(The invention relates to a laminate comprising at least one first layer of at least one first metal and at least one further layer of a polymer composition (PZ), and to a method for producing the laminate according to the invention.)

1. A laminate comprising at least one first layer of at least one first metal and at least one further layer of a polymer composition (PZ) comprising at least one Thermoplastic Polyurethane (TPU), wherein the at least one Thermoplastic Polyurethane (TPU) is obtainable by polymerizing at least the following components:

(A) at least one polyether polyol,

(B) at least one polyisocyanate,

(C) at least one C₂-C₂₀A polyol.

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 bonded to the at least one second layer through the at least one other layer.

3. The laminate of claim 1 or 2, wherein the at least one Thermoplastic Polyurethane (TPU) has a glass transition temperature (T)_G(TPU)) Is between-150 ℃ and 20 ℃.

4. The laminate as claimed in any one of claims 1 to 3, wherein the Thermoplastic Polyurethane (TPU) is obtainable by polymerizing: 5 to 50% by weight of component (A), 20 to 80% by weight of component (B) and 5 to 40% by weight of component (C), based in each case on the sum of the percentages by weight of components (A), (B) and (C).

5. The laminate of any one of claims 1 to 4 wherein component (B) is selected from the group consisting of diphenylmethane 4,4 ' -diisocyanate, diphenylmethane 2,4 ' -diisocyanate and diphenylmethane 2,2 ' -diisocyanate.

6. The laminate of any one of claims 1 to 5 wherein component (C) is selected from the group consisting of ethylene glycol, propane-1, 2-diol, propane-1, 3-diol, and butane-1, 4-diol.

7. The laminate as claimed in any one of claims 1 to 6, wherein the at least one Thermoplastic Polyurethane (TPU) has an elastic modulus in the range of 800 to 1400 MPa.

8. The laminate of any one of claims 1 to 7, wherein component (A) has a number average molecular weight (M)_n) In the range of 100 to 8000 g/mol.

9. The laminate as claimed in any one of claims 1 to 8, wherein the at least one first metal is selected from iron, aluminium, copper, nickel and magnesium and alloys thereof.

10. The laminate of any one of claims 1 to 9, wherein the at least one first layer has a thickness of from 0.1mm to 0.6mm, and/or wherein the at least one other layer has a thickness of from 0.02mm to 1.5 mm.

11. The laminate of any one of claims 1 to 10, wherein the polymer composition (PZ) further comprises at least one additive selected from the group consisting of: stabilizers, dyes, antistatic agents, extender oils, surface modifiers, drying agents, mold release agents, antioxidants, light stabilizers, PVC stabilizers, lubricants, flame retardants, blowing agents, impact modifiers, adhesion promoters, coupling agents, and nucleating agents.

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 at least one Thermoplastic Polyurethane (TPU), wherein said at least one Thermoplastic Polyurethane (TPU) is obtainable by polymerizing at least the following components:

(A) at least one polyether polyol,

(B) at least one polyisocyanate,

(C) at least one C₂-C₂₀A polyhydric alcohol,

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

c) laminating the first sheet heated in 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. The method according to any one of claims 12 to 14, wherein step a) comprises providing the thin layer by an extrusion process.

Examples

The following components were used:

thermoplastic polyurethanes

TPU1: Elastollan 1174D (thermoplastic polyurethane from BASF SE; MDI/polyether alcohol copolymer)

TPU2 Elastollan 1283D 11 (thermoplastic polyurethane from BASF SE; MDI/polyether alcohol copolymer)

TPU3 Elastollan C74D (thermoplastic polyurethane from BASF SE; MDI/polyesterol copolymer)

A first metal and a second metal

Steel

Preparation of the laminate

The polymers specified in table 1 were mixed in the amounts specified in table 1 at 230 ℃ using a Haake PolyLab QC with a CTW100 extruder to give a polymer composition, and extruded through a slit film die having a width of 100 mm. The resulting strip was processed by means of a water-cooled roll having a width of 20cm to form a thin layer having a width of at least 5mm and a thickness of 420 μm, and wound. The amounts specified in table 1 are all in weight percent.

Before the preparation of the laminate, the thin layer of the polymer composition and the first and second sheet of steel were dried at 80 ℃ and a pressure of < 5 mbar for 7 days.

The laminate is prepared by inserting a first sheet of steel and a second sheet of steel into an apparatus. A thin layer of the polymer composition is placed between the first sheet and the second sheet. The flakes were pressed for 60 seconds at 250 ℃ and 30 bar with a hydraulic press.

For cooling, the hot laminate was removed from the press and covered with steel sheeting (40X 40mm, thickness 5 mm). After cooling, the laminate was stored in air with a relative humidity < 1%. The test specimens were measured in a Zwick tester (Zwick I BT1-FR5.0TN with pneumatic jaws) according to DIN EN ISO 11339, with a measuring speed of 200mm/min and a specimen thickness of 0.85-0.9 mm. The tensile force in newtons (N) determined from the 100mm measurement distance is used to form an average of the entire measurement and corrected by calculation to a width of 40 mm. The results (T-peel) for each laminate are also shown in Table 1.

The modulus of elasticity of the laminate was determined according to ISO527-1: 2012. The results can also be seen in table 1.

TABLE 1

The laminates of the present invention have particularly good peel properties and good modulus of elasticity.