Title:
アスファルト改質用ブロック共重合体組成物、その製造方法、およびアスファルト組成物
Document Type and Number:
Japanese Patent JP4069389
Kind Code:
B2
Abstract:
A composition for asphalt modification which comprises (a) a block (co)polymer represented by general formula (I); (S-B)m-S'n (in formula (I), S and S' are each a polymer block mainly composed of an aromatic vinyl compound, B is a polymer block mainly composed of a conjugated diene, and m and n are each an integer of 0 or 1, provided that m+n is 1 or more), wherein the total combined aromatic vinyl compound content in the block (co) polymer is from more than 10% by weight to 100% by weight, and (b) a block copolymer represented by general formula (II) ; S-B-S, general formula (III); S-B-S' and/or general formula (IV) ; (S-B)2-X (in formulas (II) to (IV), S, S' and B have the same meanings as given in general formula (I), and X is a residue of a coupling agent), at a block copolymer (a) /block copolymer (b) ratio (weight ratio) of 10-40/90-60; and further, an asphalt composition in which this composition for modification is added to asphalt. There are provided the composition for asphalt modification excellent in solubility in asphalt, excellent in storage stability at high temperatures, further low in melt viscosity and excellent in asphalt characteristics, and the asphalt composition available for road pavement or waterproof sheets.
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Inventors:
Torii Masatoshi
Hiroshi Kato
Masato Suzuki
Miyaji Takumi
Hiroshi Kato
Masato Suzuki
Miyaji Takumi
Application Number:
JP2003328390A
Publication Date:
April 02, 2008
Filing Date:
September 19, 2003
Export Citation:
Assignee:
JSR Clayton Elastomer Co., Ltd.
International Classes:
C08F297/04; C08F297/00; C08L95/00; C08L53/02
Domestic Patent References:
| JP2002060583A | ||||
| JP2002030126A | ||||
| JP11315187A | ||||
| JP6041439A | ||||
| JP8225711A | ||||
| JP7228784A | ||||
| JP11080554A | ||||
| JP2005521773A |
Foreign References:
| WO2002044281A1 | ||||
| WO2002026889A1 | ||||
| WO2002002663A1 |
Attorney, Agent or Firm:
Shigetaka Shirai