Title:
床おおいとそれに使用するフィルム
Document Type and Number:
Japanese Patent JP4190580
Kind Code:
B2
Abstract:
A thermoplastic solid backing film manufactured by the co-extrusion of three polymer compositions wherein die-lip build up is avoided by adjusting the amount of filler present in each polymer composition. The first and third polymer compositions are such that substantially no die-lip build up occurs when these compositions are extruded through a die however the second polymer composition is such that there would be substantial die-lip build up if it was extruded adjacent a die-lip. The presence of the first and third polymer compositions prevents the second polymer composition from contacting the die-lip during manufacture of the backing film. The thermoplastic solid backing film can be incorporated in a resilient floor covering and in floor tiles.
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Inventors:
Harwood Evor Charles
Wilson Gary John
Jones Keith Melvin
Wilson Gary John
Jones Keith Melvin
Application Number:
JP51950097A
Publication Date:
December 03, 2008
Filing Date:
November 20, 1996
Export Citation:
Assignee:
The Amutico Company Limited
International Classes:
B29C48/07; B29C48/08; B29C48/17; B29C48/21; B29D99/00; B32B27/20; B32B37/15; D06N7/00; B29C48/22; B29K105/16; B29L9/00
Domestic Patent References:
| JP62222826A | ||||
| JP2024451A | ||||
| JP2030849A |
Foreign References:
| EP0621128A1 |
Attorney, Agent or Firm:
Yoshiteru Oshida