Bituminous compositions

Details Bituminous compositions Bituminous compositions

2007-06-12

2007-06-12

Szekely, Peter (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

Reexamination Certificate

active

10537686

ABSTRACT:
The present invention relates to a bituminous composition, comprising a bituminous component and a block copolymer, wherein the block copolymer comprises at least two terminal poly(vinyl aromatic) blocks and at least one poly(conjugated diene) central block, wherein said poly(conjugated diene) central block(s) is (are) obtained by substantially random copolymerization of butadiene and isoprene a molar ratio between butadiene and isoprene in the range or from 1:2 to 9:1; wherein the poly(vinyl aromatic) content (PSC) is in the range of from 20 to 30 wt %, wherein the content of a possibly accompanying diblock comprising a poly(vinyl aromatic) block and a poly(butadiene/isoprene) block is at most 25 mole %, wherein the 1,2-addition (vinyl content) of the polymerized conjugated dienes is in the range of from 10 to 80%, and wherein the apparent molecular weight of the complete block copolymer is in the range of 310,000 to 380,000.

REFERENCES:
patent: 3231635 (1966-01-01), Holden et al.
patent: 3251905 (1966-05-01), Zelinski
patent: 3390207 (1968-06-01), Moss et al.
patent: 3598887 (1971-08-01), Darcy et al.
patent: 4219627 (1980-08-01), Halasa et al.
patent: 4987194 (1991-01-01), Maeda et al.
patent: 5075377 (1991-12-01), Kawabuchi et al.
patent: 5246987 (1993-09-01), Masse et al.
patent: 5399627 (1995-03-01), Diehl et al.
patent: 5405903 (1995-04-01), Van Westrenen et al.
patent: 6174939 (2001-01-01), Liang
patent: 6833411 (2004-12-01), Fujiwara et al.
patent: 6949593 (2005-09-01), Heimerikx et al.
patent: 2003/0191241 (2003-10-01), Fujiwara et al.
patent: 2003/0231928 (2003-12-01), Hildebrand et al.
patent: 2004/0116582 (2004-06-01), De Keyzer et al.
patent: 29 42 128 (1981-04-01), None
patent: 0 387 671 (1990-09-01), None
patent: 0 413 294 (1991-02-01), None
patent: 0 636 654 (1995-02-01), None
patent: 0 802 251 (1997-10-01), None
patent: 1 426 411 (2004-06-01), None
patent: 05070699 (1993-03-01), None
patent: 05345885 (1993-12-01), None
patent: 2000-239635 (2000-09-01), None
patent: 2004-131707 (2004-04-01), None
patent: 94/22931 (1994-10-01), None

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