Process for bonding leather to leather

Details Process for bonding leather to leather Process for bonding leather to leather

1990-06-22

1991-07-02

Davis, Jenna

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

69 21, 1563063, 1563082, 156311, 156312, B32B 3120

Patent

active

050282859

ABSTRACT:
Bonding of leather to leather without the use of any adhesives is achieved by pressing together the two leather portions to be bonded at a pressure of at least about 50 bar and at a bonding temperature of from about 60.degree. to about 200.degree. C. for at least 10 seconds and subsequently cooling them or allowing them to cool while maintaining a pressure of at least about 10 bar at any time during said cooling when the temperature is above about 85.degree. C., the entire process being conducted in an oxygen-poor environment.

REFERENCES:
patent: 40593 (1863-11-01), Allen
patent: 258057 (1882-05-01), Gunther
patent: 1779368 (1930-10-01), Cavanagh
patent: 2516283 (1950-07-01), Winheim
patent: 3304346 (1967-02-01), D'Alelio
patent: 4650955 (1987-03-01), Zaborowski
"Zur Herstellung von Lederfaserwerkstoffen"; Dr. H. Lohmann; pp. 1-5; Chemische Fabrik Stockhausen GmbH.

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