Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1973-08-13
1976-01-06
Powell, William A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
8 25, 8 12, 8 13, 156238, 156239, 156241, 427148, 427152, 428101, 428473, 428508, 428510, 428532, 428914, B32B 3120, B32B 2708, B32B 3112, D06P 332
Patent
active
039309215
ABSTRACT:
An improved method of finishing leather by transferring a finish coating, at least the outer stratum of which comprises a thermoplastic, adhesive acrylic polymer, from a release layer bearing the finish coating to the leather. The leather to be coated (which may be supported on an appropriate backing layer) and the release layer are pressed into a sandwich-like assembly with the concurrent application of sufficient heat and pressure to transfer substantially the entire finish coating to the surfaces of the leather and the backing layer juxtaposed therewith. Transfer of the finish coating is effected without the application of any adhesive material or "tie coat" prior to pressing the coating into contact with the leather, by virtue of the thermoplastic, adhesive characteristics of the acrylic finish coating per se.
The method may be carried out batch-wise employing discrete backing and release layers for the transfer of finish coatings to individual leather pieces. Alternatively, the method may be performed continuously with the successive feed of leathers to be coated between a transfer web providing the desired release layer and a supporting web imparting the requisite backing or support.
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patent: 3276933 (1966-10-01), Brant
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patent: 3458376 (1969-07-01), Malik
patent: 3473990 (1969-10-01), Simon et al.
patent: 3713938 (1973-01-01), Sutton
patent: 3794544 (1974-02-01), Eckert et al.
Barrett & Company
Bokan Thomas
Powell William A.
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