| (19) |
 |
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(11) |
EP 1 376 249 A8 |
| (12) |
CORRECTED EUROPEAN PATENT APPLICATION |
| (48) |
Corrigendum issued on: |
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17.03.2004 Bulletin 2004/12 |
| (43) |
Date of publication: |
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02.01.2004 Bulletin 2004/01 |
| (22) |
Date of filing: 02.06.2003 |
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| (84) |
Designated Contracting States: |
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AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
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Designated Extension States: |
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AL LT LV MK |
| (30) |
Priority: |
03.06.2002 JP 2002162224
|
| (71) |
Applicant: MITSUI CHEMICALS, INC. |
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Tokyo (JP) |
|
| (72) |
Inventors: |
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- Uosaki, Hirotaka
Sodegaura-shi, Chiba 299-0265 (JP)
- Takei, Hiroyuki
Sodegaura-shi, Chiba 299-0265 (JP)
|
| (74) |
Representative: HOFFMANN - EITLE |
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Patent- und Rechtsanwälte Arabellastrasse 4
81925 München
81925 München (DE) |
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| |
|
| (54) |
Binder resin for toner and toner |
(57) A binder for a toner containing a polyester resin (A); and a block copolymer (B)
comprising a block comprising a sequence of ethylene hydrocarbon and/or a conjugated
diene hydrocarbon-derived constituent unit, and a block comprising a sequence of styrene-derived
constituent unit; and/or the hydrogenated product of the block copolymer, i.e., the
hydrogenated block copolymer. The binder can be used in a toner which can exhibit
superior fixing properties, offset resistance, development durability or the like.
Thus, it is possible to satisfy the needs of the markets that require a high-speed
printer, low-temperature fixing properties or the like.
Recycled PET products can also be used for raw materials, thus contributing to the
recycle society.