Dental adhesive composition

Claim 2

A dental adhesive composition comprising (a) 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (b) at least one methacrylate or acrylate selected from the group consisting of methyl methacrylate, ethyl methacrylate, isopropyl methacrylate, 2-hydroxyethyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, hydroxypropyl methacrylate, tetrahydrofurfuryl methacrylate, glycidyl methacrylate, 2-methoxyethyl methacrylate, 2-ethylhexyl methacrylate, 2,2-bis(methacryloxyphenyl)propane, 2,2-bis[4-(2-hydroxy-3-methacryloxypropoxy)phenyl]propane, 2,2-bis(4-methacryloxydiethoxyphenyl)propane, 2,2-bis(4-methacryloxypropoxy-phenyl)propane, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, butylene glycol dimethacrylate, neopentyl glycol dimethacrylate, 1,3-butanediol methacrylate, 1,4-butanediol dimethacrylate, 1,6-hexanediol methacrylate, trimethylolpropane trimethacrylate, trimethylolethane trimethacrylate, pentaerythritol trimethacrylate, trimethylolmethane trimethacrylate, pentaerythritol tetramethacrylate, methacrylates and acrylates containing a urethane bond in their molecules, di-2-methacryloxyethyl-2,2,4-trimethylhexamethylene dicarbamate or its acrylate and compounds having the following structural formula: ##STR3## wherein: R, which may be identical or different from each other is H or CH 3 , and A is --(CH 2 ) 6 --, ##STR4## and (c) a photopolymerization or a chemical polymerization initiator which chemical polymerization initiator is selected from the group consisting of the following combinations: 1) N-phenylglycine and benzoyl peroxide; 2) p-toluenesulfinate and benzoyl peroxide; and 3) p-toluenesulfinate, an aromatic tertiary amine and benzoyl peroxide.

Claim 3

A dental adhesive composition as claimed in claim 1, wherein said 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide is present in an amount of from 0.1 to 20.0% with respect to the total weight of the composition.

Claim 4

A dental adhesive composition as claimed in claim 1, wherein said methacrylate or acrylate is present in an amount of from 50 to 97.4% with respect to the total weight of the composition.

Claim 5

A dental adhesive composition as claimed in claim 1, which further comprises an organic solvent.

Claim 6

A dental adhesive composition as claimed in claim 1, which further comprises a filler.

Claim 7

A dental adhesive composition as claimed in claim 1, wherein said 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide is present in an amount of from 0.5 to 10.0% with respect to the total weight of the composition.

Claim 8

A dental adhesive composition as claimed in claim 1, wherein said methacrylate or acrylate is 2-hydroxyethylmethacrylate or triethylene glycol dimethacrylate.

Claim 9

A dental adhesive composition as claimed in claim 1, wherein said photopolymerization initiator consists of a sensitizer-reducer combination.

Claim 10

A dental adhesive composition as claimed in claim 1, wherein said at least one methacrylate or acrylate is selected from the group consisting of methyl methacrylate, 2,2-bis[4-(2-hydroxy-3-methacryloxypropoxy)phenyl]propane, 2-hydroxyethyl methacrylate, triethylene glycol dimethacrylate and di-2-methacryloxyethyl-2,2,4-trimethylhexamethylene dicarbamate.

Claim 11

A dental adhesive composition as claimed in claim 1, comprising a chemical polymerization initiator.

Claim 12

A dental adhesive composition as claimed in claim 10, wherein said chemical polymerization initiator is a combination of N-phenylglycine and benzoyl peroxide.

Claim 13

A dental adhesive composition as claimed in claim 1, which provides a bonding strength of greater than or equal to 150 kg/cm 2 .

Claim 14

A dental adhesive composition as claimed in claim 1 comprising a photopolymerization initiator.

Claim 15

A dental adhesive composition as claimed in claim 13, wherein said photopolymerization initiator is camphor quinone.

Claim 16

A dental adhesive composition consisting of (a) 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (b) at least one methacrylate or acrylate selected from the group consisting of methyl methacrylate, ethyl methacrylate, isopropyl methacrylate, 2-hydroxyethyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, hydroxypropyl methacrylate, tetrahydrofurfuryl methacrylate, glycidyl methacrylate, 2-methoxyethyl methacrylate, 2-ethylhexyl methacrylate, 2,2-bis(methacryloxyphenyl)propane, 2,2-bis[4-(2-hydroxy-3-methacryloxypropoxy)phenyl]propane, 2,2-bis(4-methacryloxydiethoxyphenyl)propane, 2,2-bis(4-methacryloxypropoxy-phenyl)propane, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, butylene glycol dimethacrylate, neopentyl glycol dimethacrylate, 1,3-butanediol methacrylate, 1,4-butanediol dimethacrylate, 1,6-hexanediol methacrylate, trimethylolpropane trimethacrylate, trimethylolethane trimethacrylate, pentaerythritol trimethacrylate, trimethylolmethane trimethacrylate, pentaerythritol tetramethacrylate, methacrylates and acrylates containing a urethane bond in their molecules, di-2-methacryloxyethyl-2,2,4-trimethylhexamethylene dicarbamate or its acrylate and compounds having the following structural formula: ##STR5## wherein: R, which may be identical or different from each other is H or CH 3 , and A is --(CH 2 ) 6 --, ##STR6## and (c) a photopolymerization or a chemical polymerization initiator which chemical polymerization initiator is selected from the group consisting of the following combinations: 1) N-phenylglycine and benzoyl peroxide; 2) p-toluenesulfinate and benzoyl peroxide; and 3) p-toluenesulfinate, an aromatic tertiary amine and benzoyl peroxide.

Claim 17

A dental adhesive composition consisting of (a) 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (b) at least one methacrylate or acrylate selected from the group consisting of methyl methacrylate, ethyl methacrylate, isopropyl methacrylate, 2-hydroxyethyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, hydroxypropyl methacrylate, tetrahydrofurfuryl methacrylate, glycidyl methacrylate, 2-methoxyethyl methacrylate, 2-ethylhexyl methacrylate, 2,2-bis(methacryloxyphenyl)propane, 2,2-bis[4-(2-hydroxy-3-methacryloxypropoxy)phenyl]propane, 2,2-bis(4-methacryloxydiethoxyphenyl)propane, 2,2-bis(4-methacryloxypropoxy-phenyl)propane, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, butylene glycol dimethacrylate, neopentyl glycol dimethacrylate, 1,3-butanediol methacrylate, 1,4-butanediol dimethacrylate, 1,6-hexanediol methacrylate, trimethylolpropane trimethacrylate, trimethylolethane trimethacrylate, pentaerythritol trimethacrylate, trimethylolmethane trimethacrylate, pentaerythritol tetramethacrylate, methacrylates and acrylates containing a urethane bond in their molecules, di-2-methacryloxyethyl-2,2,4-trimethylhexamethylene dicarbamate or its acrylate and compounds having the following structural formula: ##STR5## wherein: R, which may be identical or different from each other is H or CH 3 , and A is --(CH 2 ) 6 --, ##STR6## and (c) a photopolymerization or a chemical polymerization initiator which chemical polymerization initiator is selected from the group consisting of the following combinations: 1) N-phenylglycine and benzoyl peroxide; 2) p-toluenesulfinate and benzoyl peroxide; and 3) p-toluenesulfinate, an aromatic tertiary amine and benzoyl peroxide.

Claim 18

A dental adhesive composition as claimed in claim 15, comprising a chemical polymerization initiator.

Claim 19

A dental adhesive composition as claimed in claim 16, wherein said chemical polymerization initiator is a combination of N-phenylglycine and benzoyl peroxide.

Claim 20

A dental adhesive composition as claimed in claim 15, which provides a bonding strength of greater than or equal to 150 kg/cm 2 .

Claim 21

A dental adhesive composition as claimed in claim 15 comprising a photopolymerization initiator.

Claim 22

A dental adhesive composition as claimed in claim 19, wherein said photopolymerization initiator is camphor quinone.