Process for surface-modifying polypropylene or polyethylene

Details Process for surface-modifying polypropylene or polyethylene Process for surface-modifying polypropylene or polyethylene

1992-04-17

1994-04-12

Owens, Terry J.

Coating processes

With post-treatment of coating or coating material

Heating or drying

427412, 4274123, 4273935, B05D 118

Patent

active

053024184

ABSTRACT:
A process for coating a polypropylene or polyethylene surface with a maleic acid-grafted polypropylene or polyethylene copolymer. In this process, a dope containing the graft copolymer is applied to the polypropylene or polyethylene surface, e.g. by dip coating, at a temperature high enough to keep the copolymer solvated in the dope solvent. The surface is then dried to leave a porous graft polymer coating bonded to the polypropylene or polyethylene. The coated product has superior adhesion characteristics compared to uncoated polypropylene or polyethylene.

REFERENCES:
patent: 3427183 (1969-02-01), Portolani et al.
patent: 3922473 (1975-11-01), Kosaka et al.
patent: 4563392 (1986-12-01), Harpell et al.
patent: 4588648 (1986-05-01), Krueger et al.
patent: 4675210 (1987-06-01), Clayton et al.
patent: 4789568 (1988-12-01), Matoba et al.

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