Emulsified asphalt emulsion fortified with asbestos fibers专利检索-乳化沥青沥青沥青粘合剂粘合剂建筑材料专利检索查询-专利查询网

Emulsified asphalt emulsion fortified with asbestos fibers

阅读：675发布：2022-03-18

专利汇可以提供Emulsified asphalt emulsion fortified with asbestos fibers专利检索，专利查询，专利分析的服务。并且A method for coating a fabric with an asphalt emulsion containing asbestos fibers, the fibers having been pretreated with a non-ionic surface active agent to yield a stable emulsion containing asphalt and fortifying asbestos fibers, useful as a sealant composition which will not extrude from the fabric under elevated hydralic or fluid pressures. Stable emulsions containing asbestos fibers which have been pretreated with a non-ionic surface active agent are disclosed.，下面是Emulsified asphalt emulsion fortified with asbestos fibers专利的具体信息内容。

权利要求

1. A METHOD FOR PREPARING AN ASPHALT IMPREGNATED NONWOVEN POLYOLEFIN FABRIC MATERIAL CAPABLE OF WITHSTANDING FLUID OR HYDRAULIC PRESSURE TENDING TO CAUSE THE ASPHALT TO EXTRUDE FROM THE FABRIC, WHICH COMPRISES PREWETTING ASBESTOS FIBERS HAVING A FIBER LENGTH OF ABOUT 0.01-0.1 INCHES WITH AN NONIONIC SURFACE-ACTIVE AGENT, BLENDING ENOUGH OF THE THUS-TREATED ASBESTOS FIBERS WITH AN ANIONIC ASPHALT EMULSION TO OBA TAIN A STABLE EMULSION MIXTURE CONTAINING 4-15 PARTS OF ASBESSTOS FIBER PER 100 PARTS OF ASPHALT EMULSION APPLYING SUCH STABLE EMULSION MIXTURE TO SAID FABRIC IN AN AMOUNT SUFFICIENT TO INSURE THE FILLING OF THE INTERSTICES OF THE FABRIC, AND CURIN THE COATING THUS OBTAINED.

2. A method according to claim 1 wherein the non-woven fabric is a capped fabric, the cap being a polyolefin or a nylon non-woven fabric.

3. The method of claim 1 wherein the polyolefin non-woven fabric is made from polyolefin staple fibers of 2-20 denier which have been formed into a batt and needle punched and passed through a pair of nip rolls one of which is heated to heat fuse the fibers on one side of the batt such that the final product has a temple strength of from about 10 pounds to about 75 pounds per inch of width.

4. The method according to claim 3 wherein the polyolefin non-woven fabric is about 1 to 5 mm thick under no compression and less than about 10 percent of the thiCkness of the fabric is fused.

5. A method according to claim 4 wherein the fabric has a weight of about 3.5 ounce/square yard to about 8 ounce/square yard.

6. A method according to claim 5 wherein the polyolefin fabric has a nylon cap attached to one side by a further needle punch operation, said capped product having a total weight of between about 4.0 and about 5.5 ounces/square yard.

7. A method according to claim 6 wherein the asphalt/asbestos emulsion mixture is applied to the capped side of the fabric.

8. The method according to claim 1 wherein the nonionic surfactant is an alkylarylpolyether alcohol.

9. The method according to claim 8 wherein the alkylarylpolyether alcohol is octyl-phenoxypolyethoxyethanol.

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Emulsified asphalt emulsion fortified with asbestos fibers

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