Abrasive disc of polyurethane bonded metallic wool

Details Abrasive disc of polyurethane bonded metallic wool Abrasive disc of polyurethane bonded metallic wool

1976-12-16

1979-01-09

Arnold, Donald J.

Abrasive tool making process, material, or composition

Bag or filled cloth

51295, 51298R, 264128, B24D 306, B24D 332

Patent

active

041331443

ABSTRACT:
A soft abrasive tool is disclosed as comprising a solid molded mixture of edetermined quantities of an aluminum wool material and a catalyst setting elastomeric polyurethane binder material, the unique combination of which has been mixed, molded under pressure, and cured at room temperature in such manner as to have a disc-like, cup-like, or other predetermined geometrical configuration. A power source -- such as a motor or the like -- may be used to mechanically drive the aforesaid soft abrasive tool, so that it will cut, grind, and remove polyurethane paint, polysulfide sealant, and other soft coatings from aluminum aircraft skin without damaging the substrate aluminum thereof when held thereagainst.

REFERENCES:
patent: 1878104 (1932-09-01), Brooks et al.
patent: 3410936 (1968-11-01), Juras
patent: 3529945 (1970-09-01), Charvat
patent: 3535832 (1970-10-01), Amero
patent: 3537121 (1970-11-01), McAvoy

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