01813499 is referenced by 1 patents.

The present invention relates to a method for welding together two layers (1, 3), or work-pieces, within a multi-layer assembly (1, 2, 3). The present invention provides a method in which laser light (4) is directed through an outer layer (1) of the assembly, allowing transmission of the laser light from its outer surface to at least within the vicinity of its inner surface substantially without any absorption of energy from the laser light, towards a layer (3) comprising an absorbent component (7), corresponding to a portion thereof, capable of absorbing laser light within a given wavelength range thereby creating a welded area (6) between a surface of the layer (3) comprising the absorbent component (7) and a surface of a layer (1) facing the layer (3) comprising the absorbent component (7). The absorbent component (7) can be provided either within the bulk of a layer or it can be provided as a separate surface-layer on one or both surfaces of a layer. The invention also provides specific products manufactured using the concept of the present invention.

Title
Method for welding components of multi-layer construction
Application Number
01813499
Publication Number
1444467
Application Date
June 27, 2001
Publication Date
September 24, 2003
Inventor
T Vorm
Il Fink
K Bager
Agent
guo saiyu
Assignee
Coloplast
IPC
A61F 05/445
B29C 65/16