GB1391765A - Lapping pads - Google Patents

Lapping pads

Info

Publication number
GB1391765A
GB1391765A GB2417573A GB2417573A GB1391765A GB 1391765 A GB1391765 A GB 1391765A GB 2417573 A GB2417573 A GB 2417573A GB 2417573 A GB2417573 A GB 2417573A GB 1391765 A GB1391765 A GB 1391765A
Authority
GB
United Kingdom
Prior art keywords
solvent
pad
shore
degrees
specific gravity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2417573A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuraray Co Ltd
Original Assignee
Kuraray Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kuraray Co Ltd filed Critical Kuraray Co Ltd
Publication of GB1391765A publication Critical patent/GB1391765A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/04—Hand tools or other devices for non-rotary grinding, polishing, or stropping resilient; with resiliently-mounted operative surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

1391765 Abrading tool KURARAY CO Ltd 21 May 1973 [26 May 1972] 24175/73 Heading B3D [Also in Divisions C4 and D1] A non-woven lapping pad having an apparent specific gravity higher than 0À4 and a Shore A hardness of higher than 60 degrees and in which the pores in the mat of three-dimensionally entagled fibres contain polyurethane elastomer and air cells is formed by hot compressing by 10 to 90% a sheet having an apparent specific gravity below 0À4 and a Shore A hardness below 60 degrees. The fibres may be dry or wet laid. In one embodiment they are of nylon. In another embodiment more than 2 synthetic polymers are mixed spun into filaments that are chopped and formed into a web, the web impregnated with polyurethane which is then coagulated by treatment with a mixture of solvent and non-solvent to produce pores. One of the fibre components is then removed by solvent treatment. Preferably the lapping pad is impregnated with by 10 to 90% by wt. of chromium oxide cerium dioxide or alumina granular abrasives. The pad may be shaped in the form of a hemisphere having channels to facilitate the flow of an aqueous suspension of an abrasive such as cerium dioxide during grinding or polishing. High speed mechanical polishing of optical parts, semi-conductor parts, stainless steel, chrome-nickel plating, aluminium, copper and brass and the burnishing of razors is thereby facilitated.
GB2417573A 1972-05-26 1973-05-21 Lapping pads Expired GB1391765A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5266072A JPS5430158B2 (en) 1972-05-26 1972-05-26

Publications (1)

Publication Number Publication Date
GB1391765A true GB1391765A (en) 1975-04-23

Family

ID=12921007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2417573A Expired GB1391765A (en) 1972-05-26 1973-05-21 Lapping pads

Country Status (4)

Country Link
JP (1) JPS5430158B2 (en)
DE (1) DE2322602A1 (en)
FR (1) FR2186869A5 (en)
GB (1) GB1391765A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007079756A1 (en) * 2006-01-13 2007-07-19 Bo Lander Rasmussen Razor blade cleaning and sharpening device
US8074535B2 (en) 2008-07-14 2011-12-13 Martell Celso E Device for treating blades to improve their cutting properties

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5411851U (en) * 1977-06-27 1979-01-25
JPS56171156U (en) * 1981-01-22 1981-12-17
JPS57126040U (en) * 1981-01-30 1982-08-06
JPS6234689Y2 (en) * 1981-06-25 1987-09-03
JPS62102972A (en) * 1985-10-28 1987-05-13 Nippon Telegr & Teleph Corp <Ntt> Polisher surface plate
AT504841B1 (en) * 2007-02-09 2009-03-15 Theurl Leimholzbau Gmbh SLIDING BOARDS FOR SCHI OR SNOWBOARDS
JP7245493B2 (en) * 2018-11-14 2023-03-24 国立大学法人九州工業大学 Polishing equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007079756A1 (en) * 2006-01-13 2007-07-19 Bo Lander Rasmussen Razor blade cleaning and sharpening device
US8246422B2 (en) 2006-01-13 2012-08-21 Morten Kjeldsen Andersen Device for cleaning safety razor blade
US9314894B2 (en) 2006-01-13 2016-04-19 Morten Kjeldsen Andersen Device for cleaning a safety razor blade
US8074535B2 (en) 2008-07-14 2011-12-13 Martell Celso E Device for treating blades to improve their cutting properties

Also Published As

Publication number Publication date
FR2186869A5 (en) 1974-01-11
JPS499792A (en) 1974-01-28
DE2322602A1 (en) 1973-12-06
JPS5430158B2 (en) 1979-09-28

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees