(45)  Date of Patent:  Oct. 8, 2013  (IO)  Patent No.:  US 8,552,137 B2  c12)  United States Patent  Bernard et al.  (54)  COMPOSITION COMPRISING SILYL  DERIVATIVE AS DEHYDRATING AGENT  (75)  Inventors:  Jean-Marie Bernard,  Saint-Laurent  d’ Agny (FR);  Philippe Barbeau,  Genas  (FR)  (73)  Assignee:  Vencorex France,  Saint-Priest (FR)  ( *)  Notice:  Subject to any disclaimer, the term ofthis  patent is extended or adjusted under 35  U.S.C. 154(b) by 150 days.  (21)  Appl. No.:  13/108,720  (22)  Filed:  May 16, 2011  (63)  Continuation-in-part of application No. 11/794,083,  filed as application No. PCT/FR2005/003194 on Dec.  20, 2005, now abandoned.  (51)  Int. Cl.  C08G18/02  (2006.01)  (52)  U.S. Cl.  USPC ..................................  528/48;  528/51; 528/52  (58)  Field of Classification Search  USPC ................................................ 528/48, 51, 52  See application file for complete search history.  10 Claims, No Drawings  (57)  ABSTRACT  FOREIGN PATENT DOCUMENTS  U.S. PATENT DOCUMENTS  (56)  References Cited  (65)  Prior Publication Data  Related U.S. Application Data  (30)  Foreign Application Priority Data  EP  EP  0246170 Al  11/1987  0765893 Al  4/1997  3,598,852 A  4,412,073 A  4,762,879 A  8/1971 Berger et al.  10/1983 Robin  8/1988 Letoffe et al.  Dec. 23, 2004  (FR) ...................................... 04 13847  US 2011/0282002 Al  Nov. 17, 2011  US008552137B2  Primary Examiner  - Kuo-Liang Peng  (74)  Attorney, Agent, or Firm  - Buchanan Ingersoll &  Rooney PC  Disclosed is a compositions comprising isocyanate sub-com› position comprising by weight not more than 5% of diisocy› anate monomers, a dehydrating agent selected among com› pounds bearing dihydrocarbylsilyl groups bonded to a  metalloid of the chalcogen column or to an atom of the nitro› gen column. The invention is applicable to the coatings indus› try, in particular paints and adhesives. 