Blown asphalt compositions

Details Blown asphalt compositions Blown asphalt compositions

2005-11-09

2009-08-18

Szekely, Peter (Department: 1796)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

Reexamination Certificate

active

07576148

ABSTRACT:
A process for preparing compatible, selectively hydrogenated block copolymer-modified bituminous compositions comprising blowing a mixture of the block copolymer and bitumen with an oxidizing gas at temperatures of at least 375° C. for at least 75 minutes. The modifying polymer is a selectively hydrogenated styrenic block copolymer and no blowing catalyst is required. Stable bituminous compositions comprising 6 to 25 parts by weight of block copolymer per 100 parts of asphalt are also provided as well as their application as roofing shingles.

REFERENCES:
patent: RE27145 (1971-06-01), Jones
patent: 3595942 (1971-07-01), Wald et al.
patent: 3634549 (1972-01-01), Shaw et al.
patent: 3670054 (1972-06-01), De La Mare et al.
patent: 3700633 (1972-10-01), Wald et al.
patent: 3985830 (1976-10-01), Fetters et al.
patent: 4391949 (1983-07-01), St Clair
patent: 4405680 (1983-09-01), Hansen
patent: 4444953 (1984-04-01), St Clair
patent: 4588634 (1986-05-01), Pagen et al.
patent: 4994508 (1991-02-01), Shiraki et al.
patent: 5190998 (1993-03-01), Fisher
patent: H1250 (1993-11-01), Gilmore et al.
patent: 5336705 (1994-08-01), Gorbaty et al.
patent: 5342866 (1994-08-01), Trumbore et al.
patent: 5488807 (1996-02-01), Terrenzio et al.
patent: 5777031 (1998-07-01), Djiauw et al.
patent: 5798401 (1998-08-01), Korenstra et al.
patent: 5830925 (1998-11-01), Chion et al.
patent: 5902683 (1999-05-01), Sieloff
patent: 5929144 (1999-07-01), Fields
patent: 5939474 (1999-08-01), Gooswilligen et al.
patent: 5973037 (1999-10-01), Fields
patent: 5990206 (1999-11-01), Tanaka et al.
patent: 6027557 (2000-02-01), Hayner
patent: 6031029 (2000-02-01), Baumgardner et al.
patent: 6060542 (2000-05-01), Gooswilligen et al.
patent: 6117926 (2000-09-01), Engber et al.
patent: 6120913 (2000-09-01), Kluttz et al.
patent: 6174939 (2001-01-01), Liang
patent: 6228909 (2001-05-01), Baumgardner et al.
patent: 6418692 (2002-07-01), Freshwater et al.
patent: 6646036 (2003-11-01), Fujiwara et al.
patent: 6851240 (2005-02-01), Peng et al.
patent: 6852806 (2005-02-01), Sasagawa et al.
patent: 7374659 (2008-05-01), Burris et al.
patent: 2005/0107521 (2005-05-01), Sasagawa et al.
patent: 716 645 (1965-08-01), None

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