Surface covering having patterned welded seam

Details Surface covering having patterned welded seam Surface covering having patterned welded seam

1997-04-25

1999-09-21

Krynski, William

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428 46, 428 57, 428161, 428163, 428195, 428203, 428400, 4289044, B32B 300, D06N 704

Patent

active

059551739

ABSTRACT:
The welding rod used to weld the surface covering has a laminate structure in which a print layer is disposed between a first thermoplastic layer and a second transparent thermoplastic layer. Preferably the welding rod is in the form of an elongated element having a half-round cross-sectional shape. The welding rod is used to join two pieces of thermoplastic sheeting, particularly flooring, together. If the welding rod has a pattern similar to the printed pattern of the sheeting the resulting surface covering looks seamless.

REFERENCES:
patent: 2839441 (1958-06-01), Kent
patent: 3421277 (1969-01-01), Frischmuth
patent: 3839126 (1974-10-01), Haller
patent: 5635266 (1997-06-01), Quinn et al.
patent: 5712032 (1998-01-01), Balmer et al.

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