Heat wave-reflective or electrically conductive laminated structure

• US 4,320,169 A
• Filed: 08/29/1980
• Issued: 03/16/1982
• Est. Priority Date: 08/31/1979
• Status: Expired due to Term

• Current Assignee: Teijin Limited
• Original Assignee: Teijin Limited
• Inventors: Suzuki, Nobuo, Yatabe, Toshiaki, Sugiyama, Ikuto
• Primary Examiner(s): Ives, P.
• Application Number:
  US06/182,612
• Time in Patent Office: 564 Days
• Field of Search: 428/215, 428/216, 428/411, 428/412, 428/421, 428/425, 428/470, 428/472, 428/480, 428/477.7, 428/473.5, 428/523, 428/333, 428/336
• US Class Current: 428/333
• CPC Class Codes: C03C 17/36 at least one coating being a metal
• CPC Class Codes: C03C 17/3613 Coatings of type glass/inorganic compound/metal/inorganic compound/metal/other
• CPC Class Codes: C03C 17/3618 Coatings of type glass/inorganic compound/other inorganic layers, at least one layer being metallic
• CPC Class Codes: C03C 17/3628 one layer at least containing a sulfide
• CPC Class Codes: C03C 17/3644 the metal being silver
• CPC Class Codes: C03C 17/3655 the multilayer coating containing at least one conducting layer
• CPC Class Codes: C03C 17/366 Low-emissivity or solar control coatings
• CPC Class Codes: C03C 17/3681 the multilayer coating being used in glazing, e.g. windows or windscreens
• CPC Class Codes: G02B 5/208 for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
• CPC Class Codes: Y10T 428/12569 Synthetic resin
• CPC Class Codes: Y10T 428/12882 Cu-base component alternative to Ag-, Au-, or Ni-base component
• CPC Class Codes: Y10T 428/12889 Au-base component
• CPC Class Codes: Y10T 428/12896 Ag-base component
• CPC Class Codes: Y10T 428/24942 including components having same physical characteristic in differing degree
• CPC Class Codes: Y10T 428/24975 No layer or component greater than 5 mils thick
• CPC Class Codes: Y10T 428/261 In terms of molecular thickness or light wave length
• CPC Class Codes: Y10T 428/265 1 mil or less
• CPC Class Codes: Y10T 428/31507 Of polycarbonate
• CPC Class Codes: Y10T 428/3154 Of fluorinated addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31681 Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]
• CPC Class Codes: Y10T 428/31721 : Of polyimide
• CPC Class Codes: Y10T 428/31765 : Inorganic-containing or next to inorganic-containing
• CPC Class Codes: Y10T 428/31786 : Of polyester [e.g., alkyd, etc.]
• CPC Class Codes: Y10T 428/31938 : Polymer of monoethylenically unsaturated hydrocarbon

Abstract

In a heat wave-reflective or electrically conductive laminated structure composed of

(A) a shaped solid substrate,

(B) a transparent thin layer having a high refractive index in contact with one or both surfaces of a layer (C) below, wherein when the layer (B) is provided on both surfaces of the layer (C), it may, at one surface, be a transparent thin layer (B) whose refractive index is not high,

(C) a transparent heat wave-reflective thin layer of an electrically conductive metal in contact with the substrate (A) or with the transparent thin layer (B), and

(D) optionally, a transparent top layer; the improvement wherein said layer (C) is a layer composed of at least about 50% by weight of Ag, about 3 to about 30% by weight of Au and about 0.5 to about 30% of Cu, the amounts being based on the total weight of Ag, Au and Cu.

Claims

1. In a heat wave-reflective or electrically conductive laminated structure composed of

(A) a shaped solid substrate,

(B) a transparent thin layer having a high refractive index of at least 1.6 with respect to visible light in contact with one or both surfaces of a layer (C) below, wherein when the layer (B) is provided on both surfaces of the layer (C), it can, at one surface, be a transparent thin layer (B) whose refractive index is lower than that of 1.6 with respect to visible light,

(C) a transparent heat wave-reflective thin layer of an electrically conductive metal in contact with the substrate (A) or with the transparent thin layer (B), and wherein the laminated structure can also contain the following layer:

(D) a transparent top layer;

the improvement wherein said layer (C) is a layer composed of at least about 50% by weight of Ag, about 3 to about 30% by weight of Au and about 0.5 to about 30% of Cu, the amounts being based on the total weight of Ag, Au and Cu.

2. The structure of claim 1 wherein the amount of Au is about 5 to about 30% by weight and the amount of Cu is about 1 to about 15% by weight, based on the total weight of Ag, Au and Cu.

3. The structure of claim 1 wherein the layer (B) is a transparent thin layer having a high refractive index composed of a metal oxide or sulfide selected from the group consisting of an oxide of titanium, and an oxide of bismuth and a sulfide of zinc.

4. The structure of claim 1 wherein the layer (B) is a transparent thin layer having a high refractive index composed of an oxide of titanium derived from a layer of an organic titanium compound and containing an organic residual moiety of the organic titanium compound.

5. The structure of claim 1 wherein the substrate (A) is a shaped article of an organic synthetic resin.

6. The structure of claim 1 wherein the layer (B) has a thickness of about 50 to about 1000 A.

7. The structure of claim 1 wherein the layer (C) has a thickness of about 50 to about 500 A.