发明名称 |
Method of packaging asphalt material and improved product resulting therefrom |
摘要 |
A method of providing asphalt base coating material for pipe and a novel container for holding the coating material are the subject of the present application. An asphalt coating material comprising 10% to 25% by weight asphalt and 75% to 90% by weight sand-lime aggregate is used to coat the weld joints of pipe previously coated with similar material along its length for corrosion protection. The weld joint coating material is delivered to a coating station in easy to handle small size containers. The containers comprise no more than about 5% of the weight of the material contained thereby and are constructed primarily from a material containing at least one of the members of the group consisting of polyethylene, polypropylene and polyethylene-polypropylene copolymer. The containers are placed in a chopper where they are reduced in size along with the coating material. The chopped mixture of particles are then melted and stirred until a relatively even mixture of a flowable liquid is presented.
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申请公布号 |
US4073760(A) |
申请公布日期 |
1978.02.14 |
申请号 |
US19760708196 |
申请日期 |
1976.07.23 |
申请人 |
H. C. PRICE CO. |
发明人 |
HARRIS, ROBERT J.;SIKES, GAIL T. |
分类号 |
C08L91/00;(IPC1-7):C08L91/00 |
主分类号 |
C08L91/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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