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Legal status
Patent not validated
| (51) | INT.CL. | B32B 13/08 | |
| B32B 17/02 | |||
| B32B 27/02 | |||
| B32B 29/00 | |||
| C04B 111/40 | |||
| C04B 28/14 |
| (11) | Number of the document | 2212105 |
| (13) | Kind of document | T |
| (96) | European patent application number | 08845911.0 |
| Date of filing the European patent application | 2008-10-15 | |
| (97) | Date of publication of the European application | 2010-08-04 |
| (45) | Date of publication and mention of the grant of the patent | 2016-05-04 |
| (46) | Date of publication of the claims translation |
| (86) | Number | PCT/US2008/079903 |
| Date | 2008-10-15 |
| (87) | Number | WO 2009/058558 |
| Date | 2009-05-07 |
| (30) | Number | Date | Country code |
| 932211 | 2007-10-31 | US |
| (72) |
YU, Qiang, US
TRACY, Sharon L., US
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| (73) |
United States Gypsum Company,
550 West Adams Street, Chicago, IL 60661,
US
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| (54) | HIGH HYDROXYETHYLATED STARCH AND HIGH DISPERSANT LEVELS IN GYPSUM WALLBOARD |
| HIGH HYDROXYETHYLATED STARCH AND HIGH DISPERSANT LEVELS IN GYPSUM WALLBOARD |