Modified ionomer blend and application thereof

Details Modified ionomer blend and application thereof Modified ionomer blend and application thereof

1982-09-17

1984-03-20

Seccuro, Carman J.

Coating processes

With pretreatment of the base

Heating or drying pretreatment

4273855, 4273881, 428358, 428461, 525196, B32B 3100, B32B 2720

Patent

active

044381620

ABSTRACT:
The disclosure relates to a modified ionomer blend which is characterized by excellent metal adhesion, good weatherability, and low gloss, consisting essentially of an intimate mixture of (1) about 20 to 60 percent of an ethylene-propylene rubber, in which ethylene is the predominant component, (2) about 40 to 80 percent of a copolymer containing ethylene units and carboxylic acid containing units, said copolymer containing between about 25 and 98.5 percent ethylene units and between about 1.5 and 30 percent carboxylic acid containing units, and said carboxylic acid units being from 10 to 100 percent neutralized with metallic ions, and (3) an effective amount up to about 10 percent of a coloring material selected from the group consisting of (1) carbon black, and (2) a pigment plus an ultraviolet stabilizer, with or without an antioxidant, and to a process in which the ionomer blend is extruded onto a metal strip which has first been cleaned with a detergent wash, rinsed with pure or deionized water, dried, heated, and passed through a crosshead die of an extruder concomitantly with the extrusion of the ionomer blend.

REFERENCES:
patent: 3264272 (1966-08-01), Rees
patent: 3267083 (1966-08-01), Imhof
patent: 3384612 (1968-05-01), Brandt et al.
patent: 3454676 (1979-08-01), Busse
patent: 3869422 (1975-03-01), Dawes et al.
patent: 3931097 (1976-01-01), Fujio et al.

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