Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1988-11-04
1990-12-18
Dawson, Robert A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
118406, 118407, 118414, 156 78, 156283, 156291, 427288, B32B 3112
Patent
active
049784021
ABSTRACT:
A flexible laminate, such as backed tufted carpeting, is formed by bonding a fabric or polymeric backing layer to a pre-coated textile substrate. The substrate is pre-coated by advancing it past a perforated hollow transfer roller (3) containing an internal doctor member (4). Fluent settable coating material is fed to the substrate (1) so that it forms a well (6) between the substrate (1) and the doctor member (4) through the perforations of the roller (3). Coating material is deposited on the fabric (1) and is then set, for example by passing through an oven, to form the pre-coat. The spacing of the roller (3) and the substrate (1) and the pressure of the doctor member (4) on the perforated wall of the roller (3) are adjusted so that a pre-coat of desired thickness or density is obtained.
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Dawson Robert A.
The Dow Chemical Company
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