1111111111111111 11111 111111111111111 11111 111111111111111 111111111111111111  US005925690A  United States Patent  [19J  Fuchigami et al.  [11]  Patent Number:  5,925,690  [45]  Date of Patent:  Jul. 20, 1999  [54]  DENTAL PRIMER COMPOSITION AND KIT  [75]  Inventors:  Satoru Fuchigami,  Tsukuba;  Hideki  Ohno,  Moriya-cho, both of Japan  [73]  Assignee:  Tokuyama Corproation,  Japan  [21]  Appl. No.:  08/977,237  [22]  Filed:  Nov. 24, 1997  [63]  Continuation of application No. 08/560,979, Nov. 20, 1995,  abandoned.  [51]  Int. Cl. 6  .......................................................  A61K 6/08  [52]  U.S. Cl.  ..........................  523/118;  524/547; 524/559;  526/277; 526/318.2  [58]  Field of Search  ............................. 523/118; 526/277,  526/318.2; 524/547, 559  [56]  References Cited  U.S. PATENT DOCUMENTS  4,806,381  4,810,195  4,952,613  5,089,051  5,145,902  5,204,383  5,258,067  5,264,513  5,338,773  5,401,783  2/1989 Engelbrecht et al. .  3/1989 Asmussen et al. .  8/1990 Hosoda.  2/1992 Eppinger et al. .  9/1992 Ravel et al. ............................ 524/547  4/1993 Manabe et al. ......................... 523/118  11/1993 Podszun et al. .  11/1993 Ikemura et al. ........................ 523/118  8/1994 Lu et al. ................................. 523/118  3/1995 Bowen .................................... 523/118  0 155 812  0 661 034 Al  3427220  62-33109  62-231652  63-279851  1-279815  6-9327  6-24928  93/12758  9/1985  7/1995  1/1986  2/1987  10/1987  11/1988  11/1989  1/1994  2/1994  7/1993  European Pat. Off ..  European Pat. Off ..  Germany ............................... 524/547  Japan.  Japan.  Japan.  Japan.  Japan.  Japan.  WIPO.  FOREIGN PATENT DOCUMENTS  OTHER PUBLICATIONS  Derwent Publications Ltd., London, GB; AN 94-260386 &  JP-A-06 192 030 (Tokuyama Soda KK), Jul. 12, 1994  (abstract).  Primary Examiner-Andrew  E. C. Merriam  Attorney, Agent, or  Firm-Wenderoth, Lind & Ponack,  L.L.P.  A dental composition which comprises  (A)  a phosphoric  acid group-containing monomer,  (B)  a carboxylic acid  groups-containing monomer and (C) water as main compo› nents in amounts of 0.5 to 50% by weight, 1 to 50% by  weight and 5 to 90% by weight, based on the composition,  respectively; and a dental adhesive kit comprising a dental  primer composition containing the monomer  (A)  and water  and an adhesive containing a carboxylic acid-containing  polyfunctional monomer and a polymerizable initiator.  [57]  ABSTRACT  13 Claims, No Drawings  Related U.S. Application Data 