| (19) |
 |
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(11) |
EP 0 764 741 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
06.10.1999 Bulletin 1999/40 |
| (43) |
Date of publication A2: |
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26.03.1997 Bulletin 1997/13 |
| (22) |
Date of filing: 12.09.1996 |
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| (84) |
Designated Contracting States: |
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AT BE DE ES FI FR GB IT SE |
| (30) |
Priority: |
21.09.1995 JP 266197/95
|
| (71) |
Applicant: ROHM AND HAAS COMPANY |
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Philadelphia,
Pennsylvania 19106-2399 (US) |
|
| (72) |
Inventor: |
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- Takarabe, Kunihide
Kitakatsushika-Gun,
Saitama Pref (JP)
|
| (74) |
Representative: Buckley, Guy Julian et al |
|
ROHM AND HAAS (UK) LTD.
European Operations Patent Department
Lennig House
2 Mason's Avenue
Croydon
CR9 3NB
Croydon
CR9 3NB (GB) |
|
| |
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(57) A composition for dust-free paper comprising a polymer composition which contains
polymeric substance having glass transition temperature (Tg) in -20°C ∼ 70°C range
and a polymeric substance having glass transition temperature (Tg) in -65°C ∼ 10°C
range, where the difference of the glass transition temperatures of these two types
of polymeric substances is 30°C or above and the average glass transition temperature
(tg) is in -30°C ∼20°C range.