UV curable coatings containing oxalanilide stabilizers, method o

Details UV curable coatings containing oxalanilide stabilizers, method o UV curable coatings containing oxalanilide stabilizers, method o

1988-03-14

1989-05-23

Herbert, Thomas J.

Stock material or miscellaneous articles

Composite

Of metal

428463, 522 10, 522113, B32B 1508, B32B 2730

Patent

active

048330388

ABSTRACT:
A metallized plastic substrate having directly adhered to the metallized surface thereof, a transparent, cross-linked film from a coating composition comprises: (A) from 4 to 10 percent of an oxalanilide ultraviolet light (UV) stabilizer dissolved in the coating composition, the UV stabilizer corresonding to the formula ##STR1## in which R is C.sub.6-22 alkyl or C.sub.6-22 alkoxy, R.sub.1 and R.sub.2 are independently hydrogen, C.sub.1-8 alkyl, C.sub.1-12 alkoxy, C.sub.1-12 alkylthio, phenoxy or phenylthio, provided that R.sub.1 and R.sub.2 may not both be selected from alkylthio, phenoxy and phenylthio, and R.sub.3 is hydrogen or C.sub.1-8 alkyl; (B) from 20 to 80 percent of a radiation sensitive monomer having at least two addition polymerizable unsaturated bonds; (C) from 0.1 to 5.0 percent of a photopolymerization initiator; and (D) from 80 to 20 percent of an acrylic addition polymer having at least one amino group and having a number average molecular weight of about 8,000-70,000, the addition polymer being derived from a mixture of copolymerizable ethylenically unsaturated monomers containing a monomeric ethylenically unsaturated amine. The percentages of components (A), (B), (C) and (D) are by weight based on nonvolatile components (i.e., solids) of the coating composition.

REFERENCES:
patent: 3579485 (1971-05-01), Folzenlogen et al.
patent: 3808273 (1974-04-01), Burdet et al.
patent: 3816568 (1974-06-01), Hofer et al.
patent: 4412024 (1983-10-01), Avar et al.
patent: 4485034 (1984-11-01), Avar et al.
patent: 4616051 (1986-10-01), Paolino
Product Bulletin, 2-435/84, "Sanduvor.RTM. 3206 Liquid", Sandoz Chemicals Corporation, pp. 1-7.

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