Waterproof tape having improved adhesion and manufacturing method thereof

Abstract

Provided is a waterproof tape for an automobile battery which comprises a filler layer having formed on one side of a base film to exhibit excellent viscosity while being thin and has excellent shock resistance and an excellent waterproof property, and a manufacturing method.

What is claimed is: 
     
         1 . A waterproof tape for an automobile battery, the waterproof tape comprising:
 a base film having a filter layer formed on one side thereof; and   an adhesive layer,   wherein the filler layer comprises a shock resistant filler including an acrylic binder and a plurality of hollow fine particles, and   the hollow fine particles comprise a first coating film which consists of a thermoplastic material containing 15-40 parts by weight of a monomer, with respect to a total of 100 parts by weight, and has a hollow part.   
     
     
         2 . The waterproof tape of  claim 1 , wherein the hollow fine particles further comprise a second coating film containing 50-80 parts by weight of calcium carbonate, with respect to a total of 100 parts by weight, and disposed arranged along a circumference of the first coating film. 
     
     
         3 . The waterproof tape of  claim 1 , wherein the filler layer comprises 5-60 parts by weight of the shock resistant filler, with respect to 100 parts by weight of the acrylic binder. 
     
     
         4 . The waterproof tape of  claim 1 , wherein the monomer of the first coating film is a copolymer comprising at least one of 15-40 parts by weight of acrylonitrile, with respect to 100 parts by weight of the hollow fine particles, phosphate methacrylate and alkali strippable polyester acrylate. 
     
     
         5 . The waterproof tape of  claim 1 , wherein the base film turns black using a black coloring agent, and the black coloring agent comprises at least one of carbon black and iron sulfide. 
     
     
         6 . The waterproof tape of  claim 1 , wherein the filler layer turns black using a black coloring agent, and the black coloring agent comprises at least one of carbon black and iron sulfide.