Low voc asphalt primer
(19)AUSTRALIAN PATENT OFFICE (54) Title Low voc asphalt primer (51)6 International Patent Classification(s) D06N 005/00 C08L 095/00 (21) Application No: 2003270818 (22) Application Date: 2003.09.18 (87) WIPO No: WO04/029363 (30) Priority Data (31) Number (32) Date 10/255,242 2002 .09 .26 (33) Country US 200510277 (43) Publication Date : 2004.04.19 (43) Publication Journal Date : 2004 .05.20 (71) Applicant(s) BUILDING MATERIALS INVESTMENT CORPORATION (72) Inventor(s) Machado, Elizabeth; Khan, Amir G.(-1-1) Application NoAU2003270818 A8(19)AUSTRALIAN PATENT OFFICE (54) Title Low voc asphalt primer (51)6 International Patent Classification(s) D06N 005/00 C08L 095/00 (21) Application No: 2003270818 (22) Application Date: 2003.09.18 (87) WIPO No: WO04/029363 (30) Priority Data (31) Number (32) Date 10/255,242 2002 .09 .26 (33) Country US 200510277 (43) Publication Date : 2004.04.19 (43) Publication Journal Date : 2004 .05.20 (71) Applicant(s) BUILDING MATERIALS INVESTMENT CORPORATION (72) Inventor(s) Machado, Elizabeth; Khan, Amir G.-1- An asphalt primer composition which comprises between about 0.8 and about 45 wt. % of a halobenzotrifluoride and between about 55 and about 92 wt. % of liquid cutback asphalt normally employed in building construction and road paving and having a VOC below 200 g/l. WHAT IS CLAIMED IS : 1. An asphalt primer composition comprising a liquid asphalt containing between about 0.5 and about 45 wt. % of a halobenzotrifluoride solvent.
2. The primer composition of claim 1 wherein said liquid asphalt is a cutback asphalt containing a solvent mixture of a halobenzotrifluoride and a co-solvent selected from the group consisting of naphtha, kerosene, mineral spirits, gas oil, paraffins boiling below 120 F and mixtures thereof.
3. The primer composition of claim 1 wherein said halobenzotrifluoride is a para-halobenzotrifluoride.
4. The primer composition of claim 1 wherein said halobenzotrifluoride is selected from the group consisting of a chlorobenzotrifluoride, a bromobenzotrifluoride and a mixture thereof.
5. The primer composition of claim 1 wherein said solvent is parabromobenzotrifluoride.
6. The asphalt primer composition of claim 1 containing between about 3 and about 20 wt. % of the halobenzotrifluoride solvent.
7. The asphalt primer composition of claim 6 containing between about 6 and about 15 wt. % of the halobenzotrifluoride.
8. The asphalt primer composition of claim 1 having a VOC concentration of less than a maximum of 200 g/l and a flash point above 100 F. <Desc/Clms Page number 6> 9. The composition of claim 1 coated on a substrate in an effective tackifying amount to provide a primer coating having a VOC less than 200 g/l maximum.
10. The composition of claim 1 coated on a substrate in a coating thickness of between about 0.75 and about 12 mils.
11. The composition of claim 1 coated on a substrate in a coating thickness of between about 1 and about 7 mils.
12. The composition of claim 1 coated in an effective tackifying amount on a roof deck.