Altering the surfaces of functional absorbent materials for use

Details Altering the surfaces of functional absorbent materials for use Altering the surfaces of functional absorbent materials for use

1996-12-18

1998-10-06

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Laser ablative shaping or piercing

21912168, 264482, 264138, 264293, 4251744, B29C 5902, B29C 5916, B23K 2600

Patent

active

058172718

ABSTRACT:
The method relates to functional absorbent materials that are profiled through cutting and heating to form flow channels, and in one embodiment to form bellows which rise above the flow channels. Additionally, the flow channels which are partially cut into an absorbent material may also function as hinge means for that material as regards bending and conformity of fit. In one embodiment, functional absorbent material is provided with discrete heating and cutting, e.g., by a laser, by which channels and bellows are simultaneously formed. In another embodiment using a discrete heating and cutting means, e.g., a laser, is used to provide channels partially through the surface of a functional absorbent material.

REFERENCES:
patent: 3790744 (1974-02-01), Bowen
patent: 3881490 (1975-05-01), Whitehead et al.
patent: 4307046 (1981-12-01), Neefe
patent: 4795452 (1989-01-01), Blaney et al.
patent: 4840692 (1989-06-01), Kamstrup-Larsen
patent: 5300053 (1994-04-01), Genaro
patent: 5441836 (1995-08-01), Balz et al.
patent: 5536264 (1996-07-01), Hsueh et al.

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