Light-stabilized polymer microparticles

Details Light-stabilized polymer microparticles Light-stabilized polymer microparticles

1991-08-05

1993-12-28

Morgan, Kriellion S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524 94, 524109, 524151, 524153, 524718, 523223, 525 98, 525 99, 526204, 5263297, C08K 534, C08K 716, C08F 200

Patent

active

052740161

ABSTRACT:
Light-stabilized polymer microparticles, which contain at least one light stabilizer, and processes for the preparation of these microparticles by polymerization of suitable monomers, at least a part of the polymerization being carried out in the presence of at least one light stabilizer, are described. The polymer microparticles can be used in coating compositions which comprise a disperse phase containing these particles and a liquid continuous phase.
Coatings and finishes based on the compositions according to the invention are distinguished by improved weathering resistance, in particular by a high light stability.

REFERENCES:
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patent: 3880796 (1975-04-01), Christenson et al.
patent: 4232135 (1980-04-01), Bentley et al.
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patent: 4314933 (1982-02-01), Beiner
patent: 4522990 (1985-06-01), Andrews
patent: 4550136 (1985-10-01), Hosch
patent: 4593064 (1986-06-01), Hosch
patent: 4708979 (1987-11-01), Pedrazzetti
patent: 4894399 (1990-01-01), Rody et al.
A. N. Theodore et al., J. Coatings Tech. 57, 67 (1985).

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