| (19) |
 |
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(11) |
EP 1 207 011 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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04.09.2002 Bulletin 2002/36 |
| (43) |
Date of publication A2: |
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22.05.2002 Bulletin 2002/21 |
| (22) |
Date of filing: 02.11.2001 |
|
| (51) |
International Patent Classification (IPC)7: B24B 31/14 |
|
| (84) |
Designated Contracting States: |
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AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
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Designated Extension States: |
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AL LT LV MK RO SI |
| (30) |
Priority: |
07.11.2000 IT TO001045
|
| (71) |
Applicant: Politess S.N.C. |
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14024 Moncucco Torinese (AT) (IT) |
|
| (72) |
Inventors: |
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- Tessore, Luca
14024 Moncucco Torinese (AT) (IT)
- Tessore, Vittorio
14024 Moncucco Torinese (AT) (IT)
|
| (74) |
Representative: Robba, Pierpaolo et al |
|
Interpatent, Via Caboto 35
10129 Torino
10129 Torino (IT) |
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| |
|
| (54) |
Abrasive chips for surface treatments in rotary and vibratory apparatus |
(57) Abrasive chips obtained by extrusion or moulding comprise a thermoplastic resin mixture
and abrasive material. Regenerated polyethylene terephtalate (PET) as thermoplastic
resin, and powder from recovered abrasive grinding wheels as abrasive material, are
particularly suitable to this aim. Such formulations allow important savings in raw
matters and enable obtaining two subsequent steps of strong removal and polishing,
respectively, in the same working cycle and in the same apparatus by using the same
abrasive chips.