Patent ID: 9663623
Date: 2017-05-30
CPC Classifications: B09B,B29C,B29K,C08J,F16F,Y10T

Claim:
1. An asphalt damping sheet comprising the following components in indicated amounts based on the total mass of the asphalt damping sheet: 20-50 parts of a paint slag containing waste limestone powder collected from a dry separation process of overspray; 1-5 parts of soft pitch; 11-15 parts of hard pitch; 29-59 parts of a non-metallic mineral; 0.1-1.5 parts of polyethylene terephthalate short fibers; said non-metallic mineral is one or more selected from the group consisting of quartz sand, pottery clay and mica powder; said soft pitch is 30# pitch according to GB/T 494-2010 China national standard for asphalt; a melting point of the hard pitch is ranging from 100° C. to 130° C.; said polyethylene terephthalate short fibers have a length of 0.8-2 mm.