Process for manufacture of suede-like sheet material
Abstract
Abstract A PROCESS FOR MANUFACTURE OF SUEDE-LIKE SHEET MATERIALS COMPRISING APPLYING A SOLUTION OF A POLYMER SUCH AS POLYURETHANE TO A SUPPORT, SUCH AS GLASS OR POLYMER SHEET TO FORM A POLYMER SOLUTION LAYER, DIPPING THE POLYMER SOLUTION LAYER APPLIED ON THE SUPPORT TO COAGULATE THE POLYMER SOLUTION INTO A LAYER HAVING A RELATIVELY LARGE SPONGY STRUCTURE IN INNER PART, ADHERING A FIRST FIBROUS SUBSTRATE TO THE SURFACE OF THE POLYMER LAYER WITH AN ADHESIVE, PEELING OFF THE SUPPORT FROM THE POLYMER LAYER, FURTHER ADHERING A SECOND SUBSTRATE AS THE FIRST SUBSTRATE TO THE SURFACE OF THE POLYMER LAYER, WHICH HAS NOT BEEN ADHERED WITH THE FIRST SUBSTRATE, WITH AN ADHESIVE AND THEN PULLING THE POLYMER LAYER IN THE OPPOSITE DIRECTIONS TO TEAR THE POLYMER LAYER INTO TWO PARTS, WHEREBY TWO SUEDE-LIKE SHEETS ARE MANUFACTURED AT ONCE.
Inventors
- 👤 Kazuo Noda
- 👤 Takao Matsuura
- 👤 Hidehiko Shimamura
Bibliographic Details
Claims Analysis
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| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
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