Coating processes – Flame contact
Patent
1988-11-30
1990-12-25
Lawrence, Evan
Coating processes
Flame contact
427256, B05D 308, B05D 504
Patent
active
049802003
ABSTRACT:
A method of producing printed containers for retortable material comprising subjecting the outer surfaces of sheets or container of polyolefin to a flame treatment to produce a wet index of 45 dyne/cm or higher and then printing the outer surfaces. The polyolefin used comprises an olefin polymer compound comprising a mixture of (a) 100 parts by weight of a crystalline propylene polymer having a melt flow index of 0.1-100 g/10 min and (b) 3.0-30 parts by weight of an ethylene polymer having a density of 0.925-0.975 g/cc and a melt index of 0.1-20 g/10 min; or an olefin polymer compound comprising a mixture of (a) 100 parts by weight of a crystalline propylene polymer having a melt flow index of 0.1-100 g/10min, (b) 3.0-30 parts by weight of an ethylene polymer having a density of 0.925-0.975 g/cc and a melt flow index of 0.1-20 g/10 min, and (c) 2.0-25 parts by weight of an ethylene-propylene copolymer rubber having a Mooney viscosity (ML 1+4.multidot.100.degree. C.) of 140 or less and containing 20-70 weight percent propylene.
REFERENCES:
patent: 3317339 (1967-05-01), Fortner et al.
patent: 3335022 (1967-08-01), Sincock
patent: 4339485 (1982-07-01), Shibano et al.
Hamada Yoshitsugu
Takahashi Takeshi
Lawrence Evan
Showa Denko Kabushiki Kaisha
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