Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2006-11-07
2006-11-07
Crispino, Richard (Department: 1733)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C442S105000, C442S170000, C442S164000, C442S270000, C442S275000, C428S374000, C428S151000
Reexamination Certificate
active
07132024
ABSTRACT:
A method for manufacturing an artificial leather comprises the following steps. First, ultramicrofiber-forming fibers having an islands-in-sea type cross-sectional configuration are formed by blend spinning or conjugate spinning. Secondly, a porous reinforcement sheet of low compactness is formed from polyester, polyurethane or polyolefin by spunbonding, meltblowing or calendering. Next, the ultramicrofibers are entangled with the reinforcement sheet by needle punching or spunlace to form the complex reinforced ultramicrofiber nonwoven fabric. The nonwoven is impregnated or coated with an elastomer resin composition, and then subjected to a coagulating process, a washing process, a drying process and a removing process to produce a semi-product leather. Finally, the semi-product leather is then processed to produce the artificial leather.
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Mesh Size and Micron Size: Coral Calcium Absorption. Internet Reference. URL: www.healthtreasures.com/mesh-microns.html.
Cheng Kuo Kuang
Chung Sheng Lien
Feng Chung Chih
Li Chun Hsien
Lin Mong-Ching
Crispino Richard
Hasse Donald E.
Hasse & Nesbitt LLC
San Fang Chemical Industry Company, Ltd.
Schatz Christopher
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