Rounding of hard cover books

B - Operations – Transporting – 42 – D

Patent

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B42D 1/00 (2006.01) B42C 9/00 (2006.01) B42C 19/04 (2006.01) B42D 1/02 (2006.01) C09J 175/04 (2006.01)

Patent

CA 1337437

Rounded, hard covered books are bound using a specific class of low viscosity reactive urethane hot melt adhesive compositions which provide a coating which will remain sufficiently flexible and thermoplastic so as to be capable of accepting and maintaining the rounded configuration even after extended periods of storage.

611068

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