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# United States Patent [19J 

# Fuchigami et al. 

# [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 

<img src='content_image/944245.jpg'>

## Related U.S. Application Data 

## U.S. PATENT DOCUMENTS 

<img src='content_image/944228.jpg'>

# [11] Patent Number: 5,925,690 

# [45] Date of Patent: Jul. 20, 1999 

<img src='content_image/944246.jpg'>

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. 

## [57] ABSTRACT 

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. 

US005925690A 

## FOREIGN PATENT DOCUMENTS 

## OTHER PUBLICATIONS 

## 13 Claims, No Drawings 

