Powder coating compositions

Details Powder coating compositions Powder coating compositions

1995-01-12

1996-10-29

Morgan, Kriellion S.

Stock material or miscellaneous articles

Composite

Of metal

524 91, C08K 53475

Patent

active

055695396

ABSTRACT:
New powder coatings or powder coating compositions comprising
A) a binder system
B) specific powder coating additives
C) at least one compound of formula I ##STR1## in which R.sub.1 is methyl, ethyl, n-propyl, iso-propyl, n-butyl, sec-butyl or tert-butyl and optionally
D) additional compounds selected from the group consisting of antioxidants, UV-stabilizers, UV-absorbers, acid scavengers, radical scavengers, pigments, dyes, UV-quenchers, processing stabilizers, fillers, and tribocharging additives
exibit advantages during their production. Compounds according to formula I can be used as UV-absorbers and can be incorporated even in greater amounts and dispersed homogeneously at the manufacture of the powder coating compositions in an extruder. It is a further advantage of these compounds that they do not volatilize during stoving of the coatings.

REFERENCES:
patent: 4619956 (1986-10-01), Susi
patent: 4760148 (1988-07-01), Seltzer et al.
patent: 4904712 (1990-02-01), Seltzer et al.
patent: 5116892 (1992-05-01), Barbee
patent: 5212245 (1993-05-01), Franks et al.
Derwent Abstracts of: WO 94/09915 US 5212245 US 5116892 Search Report--Great Britain--dated 24 Mar. 1995 for GB 9500495.8.

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