Aqueous dispersion of polyester

Details Aqueous dispersion of polyester Aqueous dispersion of polyester

1994-01-04

1995-09-12

Carrillo, Ana L.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524504, 525 48, C08L 6706

Patent

active

054497078

ABSTRACT:
An aqueous dispersion of a graft-copolymer (A), dispersed in water or a mixed solvent (B) of water and a water-soluble organic solvent, the graft-copolymer (A) comprising a polyester (A-a) graft-polymerized with a radical copolymerizable monomer (A-b) comprising a radical copolymerizable monomer having a hydrophilic group, wherein said graft-copolymer (A) is dispersed as fine particles having an average particle size of not more than 500 nm and a half band width of a signal of a carbon of a carbonyl group of the polyester, as determined by .sup.13 C-NMR, is not less than 300 Hz. The aqueous polyester dispersion of the present invention is superior in re-dispersibility and when a paint prepared from the dispersion is coated on a metal or a plastic, the coated film shows superior appearance, processability and water resistance. Accordingly, the aqueous dispersion of the present invention serves well for use for paints, ink, coating agents, adhesives and various treating agents.

REFERENCES:
patent: 5156651 (1992-10-01), Girardeau et al.

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