Unlock instant, AI-driven research and patent intelligence for your innovation.

Novel ductile metal foil laminate and method for producing the same

A flexible metal and foil laminate technology, applied in metal layered products, chemical instruments and methods, coatings, etc., can solve the problems of difficult manufacturing methods, long manufacturing processes, cumbersome manufacturing methods, etc., and achieve simple and convenient manufacturing processes. , the effect of improving productivity and economy

Inactive Publication Date: 2012-02-22
DOOSAN CORP
View PDF6 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned two-layer double-sided flexible copper foil laminate has the disadvantages that its manufacturing method is quite cumbersome, the manufacturing process is long, and the manufacturing method is very difficult.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel ductile metal foil laminate and method for producing the same
  • Novel ductile metal foil laminate and method for producing the same
  • Novel ductile metal foil laminate and method for producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109] Example 1. Manufacture of polyimide, epoxy resin and flexible copper foil laminate using them

[0110] 1-1. Manufacture of polyimide

[0111] Nitrogen was passed into a 1000mL round-bottomed flask equipped with a thermometer, a stirrer, a nitrogen gas inlet and a powder dispensing funnel, while 9.733g of p-phenylenediamine (p-PDA) (0.09mol ) and 12.014 g of 4,4'-diaminodiphenyl ether (4,4'-ODA) (0.06 mol) were added with 500 mL of N-methylpyrrolidone (NMP), stirred, and completely dissolved. The above solution was maintained at 50°C, and 30.893g of 3,3',4,4'-biphenyltetracarboxylic dianhydride (BPDA) (0.105mol) and 9.815g of pyromellitic dianhydride (PMDA) were slowly added ( 0.045mol), and polymerized while stirring to obtain a polyamic acid varnish with a viscosity of 25,000cps.

[0112] The polyamic acid varnish produced above was coated on an electrolytic copper foil (ILJIN Materials Co., Ltd.) having a thickness of 12 μm with a doctor blade. At this time, the co...

Embodiment 2

[0120] Nitrogen was passed into a 1000mL 4-neck round-bottomed flask equipped with a thermometer, a stirrer, a nitrogen gas inlet and a powder dispensing funnel, while 9.733g of p-phenylenediamine (p-PDA) (0.09 mol) and 12.014 g of 4,4'-diaminodiphenyl ether (4,4'-ODA) (0.06 mol), 500 mL of N-methylpyrrolidone (NMP) was added, stirred, and completely dissolved. 14.7 g of Talc was added there, and it stirred for 30 minutes.

[0121] The above solution was maintained at 50°C, and 30.893g of 3,3',4,4'-biphenyltetracarboxylic dianhydride (BPDA) (0.105mol) and 9.815g of pyromellitic dianhydride (PMDA) were slowly added ( 0.045mol), and polymerized while stirring to obtain a polyamic acid varnish with a viscosity of 23,000cps. The polyamic acid varnish produced above was coated on an electrolytic copper foil (ILJIN Materials Co., Ltd.) having a thickness of 12 μm with a doctor blade. At this time, the coating thickness was adjusted so that the thickness of the final polyimide resi...

Embodiment 3～6

[0124] Except that the relative proportions of p-PDA, ODA, BPDA, PMDA, and Talc were varied according to the following Table 2, the same implementation was carried out as in the above-mentioned Example 1, and finally the flexible copper foil laminates of Examples 3-6 were respectively manufactured. Their properties were measured and listed in Table 3.

[0125] Table 2

[0126] Example N

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

Provided are a ductile metal foil laminate and a method for producing the same, the ductile metal foil laminate comprising: (a) a first conductive metal foil having a first polyimide layer formed on the first face thereof; and (b) a second conductive metal foil having a second polyimide layer formed on the first face thereof, wherein the first polyimide layer and the second polyimide layer are adhered to each other by an epoxy adhesive. The present invention exhibits heat resistance and flexibility characteristics that are equivalent to those of conventional two-layered and two-faced ductile copper foil laminates, and can be produced by a simplified process, and thus productivity can be enhanced and production costs can be reduced.

Description

technical field [0001] The present invention relates to a new type of flexible copper foil laminate that exhibits excellent bendability, heat resistance, chemical resistance, flame retardancy, and electrical characteristics, and realizes simplicity and economy in the manufacturing process. A flexible double-sided metal foil laminate and a manufacturing method thereof. Background technique [0002] Flexible copper clad laminates (Flexible Copper Clad Laminated, FCCL) are mainly used as the base material of flexible printed circuit boards, and are also used in plate heating elements, electromagnetic shielding materials, flat cables, packaging materials, etc. Recently, the utilization of flexible double-sided copper foil laminates is further increasing as electronic devices using printed circuit boards are becoming smaller, denser, and more efficient. [0003] The above-mentioned flexible copper-clad laminates can be roughly classified into two-layer flexible copper-clad lamin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/088B32B7/12
CPCB32B7/12B32B15/20B32B2457/08H05K1/036H05K1/0393H05K2201/0154H05K2201/0358B32B15/043B32B2255/06B32B2255/26B32B2255/28B32B2307/202B32B2307/306B32B2307/3065B32B2307/546B32B2307/714B32B2307/732Y10T428/24975Y10T428/31515B32B15/088
Inventor 朴永锡白银松金养燮梁东宝
Owner DOOSAN CORP