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Polyamide molding composition for glass composite

A technology for molding compositions and composite materials, applied in polyamide/mineral glass composite materials, composite structures, improving adhesion to polyurethane, and polyethyleneimine, which can solve the problem of adhesion between polyurethane adhesives and polyamides sexual insufficiency

Pending Publication Date: 2020-06-26
EMS PATENT AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the problem that arises in this regard is the insufficient adhesion between polyurethane adhesives and polyamides

Method used

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  • Polyamide molding composition for glass composite
  • Polyamide molding composition for glass composite
  • Polyamide molding composition for glass composite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0154] The components described in Table 1 were compounded in the proportions described in Tables 2 and 3 in a twin-screw extruder from Werner and Pfleiderer with a screw diameter of 25 mm and the specified process parameters (see Table 4); here , polyamide pellets and additives are metered into the feed zone, while glass fibers are metered into the polymer melt in the side feeder 3 barrel section before passing through the die. The composited materials collated in Tables 2 and 3 were drawn as strands from a die with a diameter of 3 mm and pelletized after water cooling. The particles were dried at 100°C for 24 hours under a vacuum of 30 mbar.

[0155] Table 1: Materials used in Inventive Examples and Comparative Examples

[0156]

[0157] Table 2: Molding compositions according to the invention

[0158]

[0159] Table 3: Molding compositions of comparative examples

[0160]

[0161] Table 4: Composite Process Parameters

[0162] parameter Temperature ...

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PUM

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Abstract

The invention relates to a thermoplastic polyamide molding composition and to the use of the molding composition, in particular in connection with components of mineral glass. The molding compositionconsists of the following of (A) 30 wt% to 99.9 wt% of a polyamide, (B) 0.1 to 5.0 wt% of a polyethyleneimine (PEI) or a copolymer or derivative thereof, (C) 0 to 60 wt% of a filler and / or reinforcingmaterial, (D) 0 to 5.0 wt% of an additive, wherein (A) to (D) entirely provide 100% of the thermoplastic polyamide molding composition.

Description

technical field [0001] The present invention relates to thermoplastic polyamide molding compositions which are particularly suitable for composite structures with mineral glass and using layers of polyurethane as binder. The invention also relates to corresponding polyamide / mineral glass composites and to the use of specific additives for polyamide molding compositions, in particular the use of polyethyleneimine to improve the adhesion to polyurethanes. Background technique [0002] Thermoplastic polyamide materials are widely used in many fields for the production of structural components, especially in the automotive sector, but also in electronics due to their good mechanical properties, chemical resistance, good processability, low density, etc. In the field of equipment, eg housings for portable devices. [0003] Especially in the field of mobile phones, but also in the field of computers and laptops, glass panels are used for display applications. These panels made o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L77/02C08L79/02C08K13/04C08K7/14C08K3/04C08K3/34B32B27/34B32B27/28B32B7/12B32B17/10
CPCC08L77/06C08L77/02B32B27/34B32B27/28B32B7/12C08K2201/003C08K2201/004C08L79/02C08K13/04C08K7/14C08K3/04C08K3/34C08G69/26C08G69/265B32B2375/00B32B27/08B32B2457/00B32B17/06C08L77/00C08K3/013C08J5/124B29C45/0001B29K2077/00C08J3/203C08J2377/06C08J2477/06C08J2479/02C08L2205/025C08L2205/03C08L2205/06C09J177/06
Inventor 艾蒂安·埃普利乔治·施特佩尔曼博托·霍夫曼
Owner EMS PATENT AG