Abstract: Disclosed is a process for the manufacture, by coating, of a plastic web. A plastisol is deposited as a layer onto a flat support, to obtain a coating layer in the pasty state. Before the plastisol is gelled, powdering is performed by accelerating particles of plastic powder toward, the external surface of the coating layer. The powder includes particles of a thermoplastic material capable of at least partially being integrated into or dissolving in the plastisol. The particles are homogeneously incorporated in order to form a single matrix with the thermoplastic base material of the plastisol.
Type:
Grant
Filed:
April 21, 1997
Date of Patent:
October 12, 1999
Assignee:
Gerflor SA
Inventors:
Paul Plusquellec, Jacques Verhulst, Jean-Luc Perillon
Abstract: The present invention relates to a covering based on thermoplastic elastomers, especially a floor covering.The matrix constituting such a covering is an alloy containing, as base, a styrene-based thermoplastic elastomer, as reinforcement, a styrene-based polymer and, as flexibilizer, an olefin polymer.The coverings thus obtained satisfy the wear standards of a floor covering, can be calendered and exhibit good resistance to cigarette burns.
Type:
Grant
Filed:
June 14, 1993
Date of Patent:
April 25, 1995
Assignee:
Gerflor SA
Inventors:
Jean-Michel Boudry, Gilles Finaz, Bernard J. Gagnaire, Cu-Cong Trinh