Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1995-05-26
1996-10-08
Simmons, David A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156264, 156227, 6043851, B32B 3104
Patent
active
055627935
ABSTRACT:
Improved methods and apparatus for forming absorbent products and the improved absorbent products formed thereby are disclosed. In a first embodiment of the present invention, a rotary die is used to cut ellipsoidal and hyperbolic-shaped from a single sheet of material and these shapes are overlaid to form an absorbent structure. The shapes are chosen such that there is no waste of the material and yet the resulting absorbent structure is of a useful shape. Methods are also disclosed whereby two sets of rotary dies are used to simultaneously cut two sheets of material into an arcuate segment and the arcuate segments are overlaid atop each other to form useful absorbent structures. In either embodiment, powders such as superabsorbents may be added to one or more of the surfaces of the components used to construct the absorbent structures.
REFERENCES:
patent: 4670011 (1987-06-01), Mesek
patent: 4690719 (1987-09-01), Lucas et al.
patent: 4760764 (1988-08-01), De Jonckheere et al.
patent: 4960477 (1990-10-01), Mesek
patent: 5110386 (1992-05-01), Ochi et al.
Barr James P.
Gray Linda L.
McNeil-PPC
Simmons David A.
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