SUPER-STRONG CORD AND TAPE COMPOSED OF POLYVINYL ALCOHOL FIBERS

• US 3,616,165 A
• Filed: 04/28/1967
• Issued: 10/26/1971
• Est. Priority Date: 05/04/1966
• Status: Expired due to Term

• Current Assignee: Tetsuo Nishi
• Original Assignee: Tetsuo Nishi
• Inventors: Nishi, Tetsuo
• Primary Examiner(s): Burnett, Robert F.
• Assistant Examiner(s): Linker, Jr., Raymond O.
• Application Number:
  US04/634,509
• Time in Patent Office: 1,642 Days
• Field of Search: 161/175,176,143,144,167,DIG.6 264/185,210 57/14C,153 117/7,138.8,138.8UA,138.8U,138.8A 156/167,180
• US Class Current: 442/166
• CPC Class Codes: D02G 3/402 the adhesive being one component of the yarn, i.e. thermoplastic yarn
• CPC Class Codes: Y10T 428/28 Web or sheet containing structurally defined element or component and having an adhesive outermost layer
• CPC Class Codes: Y10T 428/2967 Synthetic resin or polymer
• CPC Class Codes: Y10T 442/2877 Coated or impregnated polyvinyl alcohol fiber fabric

Abstract

Cord and tape composed of continuous polyvinyl alcohol fibers which were highly strengthened by repeatedly immersing in the same kind of polyvinyl alcohol solution.

Claims

2. combining a plurality of the polyvinyl alcohol filaments into separate continuous filament bundles,

3. The method as set forth in claim 1 including after step 7, applying an adhesive solution on one side of the tape, and drying the adhesive solution on the tape.

4. drying the tape,

5. A superstrong tape comprising a plurality of substantially continuous bundles of said polyvinyl alcohol fibers as set forth in claim 7 connected in the same plane in side-by-side substantially touching relation, and a binder of the same polyvinyl alcohol from which said bundles are formed adhered on and between said bundles and fixedly encapsuling said plurality of bundles together as a unit tape body.

6. tentering the tape, and

7. drying the tape.