Browse Prior Art Database

Foam Polishing Pad

IP.com Disclosure Number: IPCOM000089918D
Original Publication Date: 1968-Dec-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Fleck, HR: AUTHOR [+2]

Abstract

Surfaces that are polished to an extremely smooth finish are necessities in the magnetomechanical data storage devices. Polishing of such surfaces is provided by pads fabricated from a plastic. Polyurethane is mixed with 10% by weight of garnet powder having 5, 12, and 27 micron average particle sizes. The polyurethane is then foamed into a pad which exhibits a porous, stiff surface with a spongy backing. The resultant pads polish a metal surface to a highly smooth profile.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 1

Foam Polishing Pad

Surfaces that are polished to an extremely smooth finish are necessities in the magnetomechanical data storage devices. Polishing of such surfaces is provided by pads fabricated from a plastic. Polyurethane is mixed with 10% by weight of garnet powder having 5, 12, and 27 micron average particle sizes. The polyurethane is then foamed into a pad which exhibits a porous, stiff surface with a spongy backing. The resultant pads polish a metal surface to a highly smooth profile.

1