Corona treatment of antifog film laminates

Details Corona treatment of antifog film laminates Corona treatment of antifog film laminates

1995-04-07

1996-05-28

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

15624423, 1562726, 156324, B29C 4704

Patent

active

055207642

ABSTRACT:
A laminate comprises a first substrate including a first layer of a blend of a polyolefin and an antifogging agent, and a bonding layer of polyolefin, preferably an ethylene unsaturated ester copolymer or low density polyethylene; a second substrate bonded to the bonding layer of the first substrate and comprising polyester or nylon; and a conventional adhesive between the first and second substrates; the bonding layer pre-treated by corona discharge before wind-up, and again treated by corona discharge before lamination. The laminates of the present invention exhibit much improved bond strength compared with conventional laminates.

REFERENCES:
patent: 2859480 (1958-11-01), Berthold et al.
patent: 3067119 (1962-12-01), Ramaika
patent: 3541040 (1970-11-01), Eastes et al.
patent: 4082877 (1978-04-01), Shadle
patent: 4120716 (1978-10-01), Bonet
patent: 4623587 (1986-11-01), Ito et al.
patent: 4764028 (1988-08-01), Wood et al.
patent: 4788105 (1988-11-01), Mueller et al.
patent: 4854999 (1989-08-01), Schirmer
patent: 5118561 (1992-06-01), Gusavage et al.
Guide To Corona Film Treatment, von der Heide et al, Modern Plastics, May 1961, FIG. 12.

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