Water washable protective coating

Details Water washable protective coating Water washable protective coating

1998-08-25

2000-01-04

Seidleck, James J.

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...

524487, 524389, 524380, 524558, 524556, 524560, 525119, 525163, 525221, 525228, C08L 3306, C08L 3502

Patent

active

060111070

ABSTRACT:
A coating composition for producing a water washable, protective coating, comprising, by weight, 10-50% of a mixture of at least two acrylic polymers each having different molecular weights, acid numbers, and glass transition temperatures. The composition includes water and an alkali, in an amount sufficient to maintain the composition at a pH in the range of 7.5 to 9.5 and is further characterized in that the average molecular weight of the mixture of the at least two acrylic polymers is in the range of approximately 35,000 to 100,000. The average acid number of the mixture is in the range of approximately 65 to 150 and the glass transition temperature of a coating produced by the evaporation of the water from the composition is in the range of 0 to 70.degree. C.

REFERENCES:
patent: 5567756 (1996-10-01), Swidler

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