Coating agents, their use as clear coats and processes for the p

Details Coating agents, their use as clear coats and processes for the p Coating agents, their use as clear coats and processes for the p

1994-12-16

1996-09-03

Nutter, Nathan M.

Coating processes

Nonuniform coating

Edge or border coating

427285, 4273855, 427391, 427393, 427422, 528230, 4284231, B05D 500

Patent

active

055521843

ABSTRACT:
A coating agent with a viscosity of 100-1000 mPa.s, measured by rotational viscometry at 70.degree. C. and a shear rate of 235 s.sup.-1, containing
45-85 wt % of one or more polyesters, that have a branched structure and are essentially free from aromatic structural units, with a number-average molecular weight (M.sub.n) of 350-3000 and a polydispersity of less than 3.5,
10-40 wt % of one or more cross-linkers based on aminoplastic resins and/or blocked di- and/or polyisocyanates,
0-20 wt % of one or more reactive diluents, and 0-10 wt % of one or more organic solvents.
They are particularly suitable as hot-sprayable clear coats for multicoat lacquer finishes.

REFERENCES:
patent: 4419407 (1983-12-01), Piccirilli
patent: 4812523 (1989-03-01), Toman
patent: 5057342 (1991-10-01), Hoy et al.
patent: 5219616 (1993-06-01), Klostermann et al.

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