초록 ▼

The invention relates to a fast hardening aqueous coating composition comprising from about 95 to about 99 weight percent of an anionically stabilized aqueous emulsion of a copolymer having a Tg of from about 0.degree. C. to about 40.degree. C., the copolymer containing two or more ethylenically uns

The invention relates to a fast hardening aqueous coating composition comprising from about 95 to about 99 weight percent of an anionically stabilized aqueous emulsion of a copolymer having a Tg of from about 0.degree. C. to about 40.degree. C., the copolymer containing two or more ethylenically unsaturated monomers, wherein from 0 to about 4 weight percent of the monomers are .alpha.,.beta.-ethylenically unsaturated aliphatic carboxylic acid monomers; from about 0.2 to about 5 weight percent of a polyimine having a molecular weight of from about 250 to about 20,000; and from about 0.2 to about 5 weight percent of a volatile base, wherein the composition has a pH from about 8 to about 11, and wherein a cast film of the composition has a hardening rate measurement rating of at least 5 within 20 minutes after casting under ambient conditions of temperature up to 30.degree. C. and relative humidity no less than 50 percent. Within the scope of the invention are a process for the preparation of a fast hardening aqueous coating composition, a fast hardening aqueous traffic paint, and a fast hardening migration resistant binder for composites.

대표청구항 ▼

1. A fast hardening aqueous migration-resistant binder composition comprising:(1) a fast hardening aqueous coating composition comprising: (a) from about 95 to about 99 weight percent, based on the weight of dry materials in the composition, of an anionically stabilized aqueous emulsion of a copolym

1. A fast hardening aqueous migration-resistant binder composition comprising:(1) a fast hardening aqueous coating composition comprising: (a) from about 95 to about 99 weight percent, based on the weight of dry materials in the composition, of an anionically stabilized aqueous emulsion of a copolymer having a Tg of from about 10.degree. C. to about 50.degree. C. the copolymer comprising in polymerized form a polymerization mixture containing two or more ethylenically unsaturated monomers, wherein, based on the total weight of all ethylenically unsaturated monomers in the polymerization mixture, from 0.2 to about 4 weight percent of the monomers are .alpha.,.beta.-ethylenically unsaturated aliphatic carboxylic acid monomers; (b) from about 0.2 to about 5 weight percent of a polyethyleneimine having a number average molecular weight of from about 250 to about 2,000; and (c) from about 0.2 to about 5 weight percent of a volatile base; and (2) an organic filler, an inorganic filler, an organic fiber, an inorganic fiber, or a mixture thereof.