Laminated sheet material

• US 3,322,613 A
• Filed: 02/11/1963
• Issued: 05/30/1967
• Est. Priority Date: 02/11/1963
• Status: Expired due to Term

• Current Assignee: Ole-Bendt Rasmussen
• Original Assignee: Ole-Bendt Rasmussen
• Inventors: OLE-BENDT RASMUSSEN
• Application Number:
  US04/257,669
• Time in Patent Office: 1,569 Days
• US Class Current: 428/484.1
• CPC Class Codes: B32B 27/00 Layered products comprising a layer of synthetic resin fibrous or filamentary layer made of a synthetic resin B32B5/02; particulate layer made of a synthetic resin B32B5/16; foamed layer made of a synthetic resin B32B5/18
• CPC Class Codes: Y10S 428/903 Microfiber, less than 100 micron diameter
• CPC Class Codes: Y10S 428/91 Product with molecular orientation
• CPC Class Codes: Y10T 428/31801 Of wax or waxy material
• CPC Class Codes: Y10T 428/3192 Next to vinyl or vinylidene chloride polymer
• CPC Class Codes: Y10T 428/31938 Polymer of monoethylenically unsaturated hydrocarbon

Claims

1. A LAMINATED FILM, COMPRISING AT LEAST TWO UNILINEARLY ORIENTED LAYER OF A MATERIAL SELECTED FROM THE GROUP OF THE LINEAR, SATURATED, HIGHLY CRYSTALLINE AND SPHEROLITEFORMING SUPERPOLYMERISATES, CONSISTING OF NYLON, TEREPHTHALIC ACID POLYESTERS, POLYETHYLENE ISOTATIC POLYPROPYLENE AND POLYVINYLIDENE CHLORIDE, THE ORIENATION OF WHICH HAS BEEN CARRIED OUT BY STRETCHING AT A TEMPERATURE FAR BELOW THE CRYSTAL MELTING POINT, AND THE DIRECTIONS OF ORIENTATION OF ADJACENT LAYERS FORMING AN ANGLE WITH ONE ANOTHER, SAID LAYERS BEING FLEXIBLY BONDED TOGETHER BY MEANS OF A PRESSURE-SENSITIVE ADHESIVE.

3. THE LAMINAED FILM OF CLAIM 1, IN WHICH THE LAYERS ARE MADE FROM 90% BY WEIGHT OF POLYETHYLENE AND 10% BY WEIGHT OF POLYISOBUTYLENE, AND THE ADHESIVE IS A MIXTURE OF A POLYVINYLBUTYL ETHER WITH 20 TO 30% BY WEIGHT OF A MICROCRYSTALLINE MINERAL WAX.