METHOD FOR PRODUCING STYRENIC COMPLEX BLOCK COPOLYMER MIXTURE AND MODIFIED ASPHALT COMPOSITION CONTAINING IT

Japanese Patent JP2009127049

A

To provide a modified asphalt composition containing a complex block copolymer, which exhibits superior ductility at low temperature, while exhibiting comparable or better softening point as compared to conventional compositions, and, thus, is applicable to road paving, waterproof sheets and sealants.

The modified asphalt composition comprises 100 pts.wt. of asphalt and 0.5-40 pts.wt. of the complex block copolymer comprising 70-99 wt.% of a triblock copolymer represented by the chemical formula 1: A-B-A' and 1-30 wt.% of a diblock copolymer represented by the chemical formula 2: A-B, wherein A and A' are the same or different and each represents a polymer block containing a styrene monomer; and B represents a polymer block containing a butadiene monomer or a polymer block containing a butadiene monomer, in which a styrene monomer is tapered.

WO/2014/193287	METHOD OF PREPARING A CURABLE BITUMINOUS BINDER, AND METHOD OF PREPARING A SURFACE LAYER CONTAINING THE BINDER, AND SURFACE LAYER COMPRISING THE CURED BINDER
JP3905490	ADDITIVE FOR HEATED ASPHALT
JPS6051555	[Title of the Invention] Pitting corrosion repair method

KIM SAM MIN
NA DONG HYUK
LEE DAE HYUNG
PYUN JOON BUM

JP2008288337A

June 11, 2009

November 11, 2008

Click for automatic bibliography generation  

KUMHO PETROCHEMICAL CO LTD

C08L95/00; C08F297/04; C08L53/02

JPH0641439A	1994-02-15
JPH08225711A	1996-09-03
JPS5278260A	1977-07-01

WO2005123834A1	2005-12-29
US4738884A	1988-04-19
US4755545A	1988-07-05

Shigeo Ishijima
Hideki Abe

Previous Patent: MODIFIED ASPHALT COMPOSITION CONTAINING TAPERED BLOCK COPOLYMER

Next Patent: TWO-STEP METHOD FOR DESULFURIZING ARSENIC-CONTAINING OLEFINIC GASOLINE