Reaction-curable adhesive composition and dental adhesive kit
AssigneeSun Medical Co., Ltd.
InventorsTakashi Yamamoto, Toshiki Ono, Masami Arata, Tatsuya Ori
Life of this patent
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Abstract
A reaction-curable adhesive composition exhibiting acidity is formed form a weakly acidic to alkaline composition (I) comprising (a) a polymerizable monomer and (b) a compound represented by the following formula (I) and a strongly acidic composition (II) comprising (a) a polymerizable monomer. R1—C6H4—NR2CH2COOR3 (1) wherein R1 and R2 are each independently a hydrogen atom or an alkyl group which may have a functional group, and R3 is a hydrogen atom or a metal atom. The composition containing the polymerizable monomer can be stably stored for a long period of time.
Claims21
A method of using a reaction-curable adhesive composition exhibiting acidity, comprising a step of applying said reaction curable adhesive composition to a tooth surface that has been previously treated with a self-etching primer composition (V) which contains (A) a polymerizable monomer, (B) a reducing inorganic compound containing sulfur, (C) a ketone solvent and (D) water, and which does not substantially contain an alcohol solvent and has storage stability of not shorter than 2 hours at 65° C.,
- wherein said reaction curable adhesive composition comprises:
- a weakly acidic to alkaline composition (I), wherein the pH value of said weakly acidic to alkaline composition (I) at 23° C. is in the range of 4.5 to 9, comprising:
- (a) a polymerizable monomer and (b) a compound represented by the following formula (1):
- R1—C6H4—NR2CH2COOR3 (1)
- wherein R1 and R2 are each independently a hydrogen atom or an alkyl group which may have a functional group, and R3 is a hydrogen atom or a metal atom, and
- a strongly acidic composition (II), wherein the pH value of the strongly acidic composition (II) at 23° C. is not less than 0.1 but less than 4.5, comprising:
- (a1) a polymerizable monomer having at least one acidic group in a molecule selected from the group consisting of a carboxylic acid group, a phosphoric acid group, a thiophosphoric acid group, a sulfonic acid group, and a sulfinic acid group.
A dental adhesive kit comprising:
- a weakly acidic to alkaline composition (I) comprising (a) a polymerizable monomer and (b) a compound represented by the following formula (1):
- R1—C6H4—NR2CH2COOR3 (1)
- wherein R1 and R2 are each independently a hydrogen atom or an alkyl group which may have a functional group, and R3 is a hydrogen atom or a metal atom,
- a strongly acidic composition (II) comprising (a1) a polymerizable monomer having at least one acidic group in a molecule selected from the group consisting of a carboxylic acid group, a phosphoric acid group, a thiophosphoric acid group, a sulfonic acid group, and a sulfinic acid group, and
- a primer composition (III),
- wherein the pH value of the weakly acidic to alkaline composition (I) at 23° C. is in the range of 4.5 to 9,
- wherein the pH value of the strongly acidic composition (II) at 23° C. is not less than 0.1 but less than 4.5,
- wherein the primer composition (III) comprises (a) a polymerizable monomer, (e) an aromatic tertiary amine and (f) a water-soluble solvent, and
- wherein the weakly acidic to alkaline composition (I), the strongly acidic composition (II) and the primer composition (III) are separately packaged.
Dependencies are inferred from the claim text.