Bituminous coating system and articles produced thereby专利检索-原位固化法排水系统专利检索查询-专利查询网

Bituminous coating system and articles produced thereby

阅读：841发布：2022-01-10

专利汇可以提供Bituminous coating system and articles produced thereby专利检索，专利查询，专利分析的服务。并且A water based bituminous composition is provided for improved coating of metal articles exemplified by cast iron water pipe, comprising from about 25 to about 65 weight per cent bituminous constituent, from about 0.5 to about 3 weight per cent of a wetting agent, from about 0.5 to about 5 weight per cent of a water dispersible bonding agent and from about 27 to about 74 weight per cent water. Metal articles are coated with the above composition under pressure to fill ''''pin holes.'''' A 2-3 mil surface coating is then applied to inside and outside surfaces. A heated article is dipped into composition at ambient temperature after which the composition is cured in situ. A method of preparing the composition and the coated article per se are also disclosed and claimed herein.，下面是Bituminous coating system and articles produced thereby专利的具体信息内容。

权利要求

1. A PROCESS FOR PRODUCING A BITUMINOUS COMPOSITION COMPRISING MIXING FROM ABOUT 27 TO 74 PARTS BY WEIGHT OF WATER AND FROM ABOUT 0.5 TO 5 PARTS BY WEIGHT OF WATER-DISPERSABLE POLYMERIC BONDING AGENT WHILE HEATING SAID MIXTURE TO A TEMPERATURE FROM ABOUT 170* TO 210*F TO DISPERSED SAID BONDING THROUGHOUT THE WATER COOLING THE DISPERSION TO A TEMPERATURE FROM ABOUT 20* TO 140*F ADDING FROM ABOUT 0.5 TO 3 PARTS BY WEIGHT OF A WETTING AGENT DURING MIXING TO DISPERSE SAID WETTING ADDING FROM ABOUT 25 TO 65 PARTS BY WEIGHT OF A BITUMINOUS MATERIAL HAVING A MELTING POINT IN THE RANGE OF ABOUT 160* TO 420*F, AND MIXING TO DISPERSE SAID ASPHALTIC MATERIAL TO PRODUCE SAID BITUMINOUS MATERIAL, SAID BITUMINOUS MATERIAL THEREUPON SWELLING AND CAUSING SUBSTANTIAL SUDSING.

2. The process of claim 1 wherein the mixture is continually agitated from the time the bonding agent and water are added until the bituminous material swells and substantial sudsing occurs in the mixture.

3. The process of claim 1 wherein the bonding agent and water are mixed for about 15 minutes to 1 hour, while continuously indirectly heating the mixture over a period of at least 20 minutes to form the dispersion, and the dispersion is held at a temperature from 170* to 210*F. for at least 30 minutes thereafter.

4. The process of claim 3 wherein sufficient agitation is present in the mixture during dispersion of the bonding agent to produce a vortex in the liquid of about 4 to 5 inches.

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Bituminous coating system and articles produced thereby

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