HEAT INSULATING LAMINATE

• US 3,655,502 A
• Filed: 12/01/1970
• Issued: 04/11/1972
• Est. Priority Date: 05/09/1967
• Status: Expired due to Term

• Current Assignee: Yutaka Yoshikawa
• Original Assignee: Yutaka Yoshikawa
• Inventors: Yoshikawa, Yutaka
• Primary Examiner(s): Powell, William A.
• Application Number:
  US05/093,933
• Time in Patent Office: 497 Days
• Field of Search: 161/125,127,128,129,137,147,148,139,47,402 52/309 156/85,91,183,184,290,291,306,309 264/342
• US Class Current: 428/142
• CPC Class Codes: B32B 15/08 of synthetic resin
• CPC Class Codes: E04B 2001/7691 Heat reflecting layers or coatings
• CPC Class Codes: E04C 2/32 formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
• CPC Class Codes: E04C 2/322 with parallel corrugations
• CPC Class Codes: E04C 2/34 composed of two or more spaced sheet-like parts E04C2/32 takes precedence; spacers for cavity walls E04B2/44
• CPC Class Codes: E04F 13/00 Coverings or linings, e.g. for walls or ceilings flooring E04F15/00; decoration of surfaces, mosaic work B44, e.g. paper-hanging B44C7/00; made of webs, e.g. of fabrics or wallpaper , as such, or their manufacturing D03D, D04G, D04H, D06N, D21H; construction of false ceilings E04B9/00; roofings or similar water-tight coverings against precipitation E04D
• CPC Class Codes: F16L 59/07 the air layer being enclosed by one or more layers of insulation
• CPC Class Codes: F16L 59/08 Means for preventing radiation, e.g. with metal foil
• CPC Class Codes: Y10T 428/24364 with transparent or protective coating
• CPC Class Codes: Y10T 428/24446 Wrinkled, creased, crinkled or creped
• CPC Class Codes: Y10T 428/24496 Foamed or cellular component
• CPC Class Codes: Y10T 428/2457 Parallel ribs and/or grooves
• CPC Class Codes: Y10T 428/24669 Aligned or parallel nonplanarities
• CPC Class Codes: Y10T 428/24752 Laterally noncoextensive components
• CPC Class Codes: Y10T 428/24826 Spot bonds connect components
• CPC Class Codes: Y10T 428/24917 including metal layer
• CPC Class Codes: Y10T 428/265 1 mil or less
• CPC Class Codes: Y10T 428/266 of base or substrate

Abstract

At least one metal foil and at least one thermoplastic resin film are bonded at a number of bonding points uniformly distributed throughout the surface to obtain heat insulating material. The heat insulating material is heated to cause shrinkage of the resin film and wrinkles of the metal foil whereby air spaces between the metal foil and the resin film are formed to obtain heat insulating layer.

Claims

2. A heat insulating layer comprising one aluminum foil and two thermoplastic resin films and the resin films being bonded to both surfaces of the metal foil at A number of bonding points uniformly and deviatively distributed throughout the surfaces of the metal foil characterized by the resin films being tightened and the metal foil being wrinkled to form a number of spaces between the resin films.

3. A heat insulating material comprising one heat-shrinkable thermoplastic resin film and two metal foils characterized by the metal foils being bonded to both surfaces of the resin film at a number of bonding points uniformly distributed throughout the both surfaces of the resin film.

4. A heat insulating layer comprising one thermoplastic resin film and two metal foils and the metal foils being bonded to both surfaces of the resin film at a number of bonding points uniformly distributed throughout the surfaces of the resin film characterized by the resin film being tightened and each metal foil being raised and wrinkled between the bonding points.