Aqueous hyperbranched macromolecule coating compositions

Details Aqueous hyperbranched macromolecule coating compositions Aqueous hyperbranched macromolecule coating compositions

2006-08-22

2006-08-22

Niland, Patrick D. (Department: 1714)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C523S406000, C523S407000, C524S504000, C524S507000, C524S539000, C524S508000, C524S513000, C524S514000, C524S515000, C524S517000, C524S540000, C524S591000, C524S600000, C524S612000, C524S839000, C524S840000, C524S845000, C524S846000

Reexamination Certificate

active

07094826

ABSTRACT:
An aqueous coating composition comprising a crosslinkable water-dispersible hyperbranched macromolecule(s) wherein the composition when drying has an open time of at least 20 minutes, a wet edge time of at least 10 minutes, a tack free time ≦15 hours, a dust free time ≦5 hours and an equilibrium viscosity of ≦5,000 Pa·s at any solids content when drying in the range of from 20 to 55% by weight using any shear rate in the range of from 9±0.5 to 90±5 s−1and at 23±2° C.

REFERENCES:
Pettersson, Bo, “Hyperbranched polymers: unique design tools for multi-property control in resins and coatings”, Pigment & Resin Technology, vol. 25, No. 4, 1996, pp. 4-14, XP-00925879.
XP-002184990, Novel hyperbranched resins for coating applications, Compendex/EL, ISSN 0300-9440.
Schmaljohann, D., “New coating systems based on vinyl ether- and oxetane- modified hyperbranched polyesters”, Macromol. Mater. Eng. 275, XP002928808.

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