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US 3,933,706 AGranted
Nonflammable binder composition
AssigneeKansai Paint Co., Ltd.
InventorsIwao Momiyama, Tatsuo Fukushima
Life of this patent
Estimating the term…
Abstract
A nonflammable binder composition having good properties, such as excellent adhesiveness, flexibility, storage stability and nonflammability, comprises a water-soluble silicate and a vinyl polymer emulsion which is prepared by emulsion polymerization of polymerizable vinyl monomer using, as an emulsifying agent, a neutralization product of water-soluble resin containing carboxyl groups.
Claims9
A nonflammable binder composition which comprises (A) 30 to 80 weight percent of water-soluble silicate represented by the formula:
- M.sub.2 O.xSiO.sub.2
- wherein M is an alkali metal or a nitrogen-containing basic group selected from the group consisting of N(CH.sub.2 OH).sub.4, N(C.sub.2 H.sub.4 OH).sub.4, N(C.sub.2 H.sub.4 OH).sub.3 and C(NH.sub.3).sub.2 NH, and x is a positive number not less than 0.5, and (B) 70 to 20 weight percent of vinyl polymer emulsion which is the emulsion polymerization product of polymerizable vinyl monomer using, as an emulsifying agent, a neutralized product of water-soluble resin containing carboxyl groups and having an acid value of 20-350 in an amount such that the theoretical acid value relative to the total solids contained in the resultant vinyl polymer emulsion is about 5-150.
Dependencies are inferred from the claim text.