Additive for improving the early resistance to driving rain...

Details Additive for improving the early resistance to driving rain... Additive for improving the early resistance to driving rain...

2011-03-01

2011-03-01

Choi, Ling-Siu (Department: 1762)

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...

C524S428000

Reexamination Certificate

active

07897669

ABSTRACT:
An additive for improving the early resistance to driving rain of physically curing coating compositions based on an aqueous acrylate dispersions, which have been adjusted to an alkaline pH with an inorganic or organic base, which is volatile at ambient temperature, is formed of an aqueous dispersion, containing a polyethyleneimine with a number average molecular weight in the range from 50,000 to 3,000,000, at least one representative of the group comprising 1,3-dihydroxy-2,2,4-trimethylpentane and esters thereof, butyl diglycol acetate and methoxypropanol as film-forming agents and at least one representative of the group comprising the liquid acrylates and pyrogenic silica as thickening agent, as well as optionally a pigment and optionally an ammonium acrylate as pigment disperser, and the use thereof.

REFERENCES:
patent: 6075079 (2000-06-01), Helmer et al.

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