US5980253A
Expired / Lapsed
US
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Process for treating hard tissues
Assignee: 3M Innovative Properties Co
•
Filing: 1998-01-12
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Granted: 1999-11-09
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Expires: 2018-01-12
Abstract
Abstract In a first aspect, a method for treating hard tissue that includes: (a) applying to hard tissue a composition that includes a cationically active functional group, a free radically active functional group, and a polymerization initiator capable of initiating free radical polymerization, where the number of moles of cationically active functional groups per gram of composition is no greater than about 0.0075; and (b) exposing the composition to polymerization conditions to form an adhesive bonded to the hard tissue. In a second aspect, a method for treating hard tissue that includes: (a) applying to hard tissue a first polymerizable composition that includes a free radically active functional group and a polymerization initiator capable of initiating free radical polymerization, but is essentially free of polymerizable components having cationically active functional groups and is capable of forming an adhesive bonded to the hard tissue upon exposure to polymerization conditions; (b) applying a second polymerizable composition; and (c) exposing the second composition to polymerization conditions to form a hardened composition adhered to the hard tissue. The second composition includes (i) a cationically active functional group and (ii) an polymerization initiator capable of initiating cationic polymerization.
Inventors
- 👤 Joel D. Oxman
- 👤 Hoa T. Bui
- 👤 Dwight W. Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:11
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/30; Y; Y10; Y10S; Y10S522/00; Y10S522/908
Claims Analysis
Total Claims: 58
Claim 1
Independent Claim
75 words
A method for treating hard tissue comprising: (a) applying to hard tissue a composition comprising a cationically active functional group, a free radically active functional group, and a polymerization initiator capable of initiating free radical polymerization, wherein the number of moles of said cationically active functional groups per gram of said composition is no greater than about 0.0075; and (b) exposing said composition to polymerization conditions to form an adhesive bonded to said hard tissue.
Claim 2
Independent Claim
75 words
A method for treating hard tissue comprising: (a) applying to hard tissue a composition comprising a cationically active functional group, a free radically active functional group, and a polymerization initiator capable of initiating free radical polymerization, wherein the number of moles of said cationically active functional groups per gram of said composition is no greater than about 0.0075; and (b) exposing said composition to polymerization conditions to form an adhesive bonded to said hard tissue.
Claim 3
Dependent Claim
28 words
A method according to claim 1 wherein the number of moles of said cationically active functional groups per gram of said composition is no greater than about 0.002.
Claim 4
Dependent Claim
34 words
A method according to claim 1 further comprising treating said hard tissue prior to application of said composition with an agent selected from the group consisting of etchants, primers, adhesion promoters, and combinations thereof.
Claim 5
Dependent Claim
22 words
A method according to claim 1 comprising exposing said composition to visible light to form said adhesive bonded to said hard tissue.
Claim 6
Dependent Claim
13 words
A method according to claim 1 wherein said composition comprises an epoxy resin.
Claim 7
Dependent Claim
14 words
A method according to claim 1 wherein said composition comprises an ethylenically unsaturated compound.
Claim 8
Dependent Claim
22 words
A method according to claim 1 wherein said composition comprises an acrylic acid ester, a methacrylic acid ester, or a combination thereof.
Claim 9
Dependent Claim
24 words
A method according to claim 1 wherein said composition comprises a hydroxy-functional acrylic acid ester, a hydroxy-functional methacrylic acid ester, or a combination thereof.
Claim 10
Dependent Claim
28 words
A method according to claim 1 wherein said composition comprises (a) an epoxy resin and (b) an acrylic acid ester, a methacrylic acid ester, or a combination thereof.
Claim 11
Dependent Claim
26 words
A method according to claim 1 wherein said composition comprises a polymerizable component comprising a cationically active functional group and a free radically active functional group.
Claim 12
Dependent Claim
23 words
A method according to claim 10 wherein said polymerizable component comprises an epoxy-functional acrylic acid ester, methacrylic acid ester, or a combination thereof.
Claim 13
Dependent Claim
19 words
A method according to claim 1 wherein said initiator is capable of initiating free radical polymerization and cationic polymerization.
Claim 14
Dependent Claim
13 words
A method according to claim 1 wherein said initiator comprises an iodonium salt.
Claim 15
Dependent Claim
18 words
A method according to claim 1 wherein said initiator comprises an iodonium salt and a visible light sensitizer.
Claim 16
Dependent Claim
56 words
A method according to claim 1 wherein said initiator comprises an iodonium salt, a visible light sensitizer, and an electron donor, wherein said initiator has a photoinduced potential greater than or equal to that of 3-dimethylamnino benzoic acid in a standard solution of 2.9×10 -5 moles/g diphenyl iodonium hexafluoroantimonate and 1.5×10 -5 moles/g camphorquinone in 2-butanone.
Claim 17
Dependent Claim
13 words
A method according to claim 1 wherein said composition comprises a hydroxy-functional component.
Claim 18
Dependent Claim
13 words
A method according to claim 16 wherein said hydroxy-functional component comprises a polyol.
Claim 19
Dependent Claim
26 words
A method according to claim 1 wherein the strength of the bond formed between said adhesive and said hard tissue is at least about 3 MPa.
Claim 20
Dependent Claim
13 words
A method according to claim 1 wherein said hard tissues comprises tooth enamel.
Claim 21
Dependent Claim
12 words
A method according to claim 1 wherein said hard tissue comprises dentin.
Claim 22
Dependent Claim
15 words
A method according to claim 1 further comprising applying a dental material to said adhesive.
Claim 23
Dependent Claim
14 words
A method according to claim 21 wherein said dental material comprises a dental composite.
Claim 24
Dependent Claim
18 words
A method according to claim 1 farther comprising applying a dental material to said composition prior to polymerization.
Claim 25
Dependent Claim
14 words
A method according to claim 23 wherein said dental material comprises a dental composite.
Claim 26
Dependent Claim
24 words
A method according to claim 22 or 24 wherein said dental composite comprises a cationically active functional group, a polymerization initiator, and a filler.
Claim 27
Dependent Claim
18 words
A method according to claim 25 wherein said dental composite further comprises a free radically active functional group.
Claim 28
Dependent Claim
20 words
A method according to claim 25 wherein said polymerization initiator of said dental composite is capable of initiating cationic polymerization.
Claim 29
Dependent Claim
78 words
A kit comprising: (a) a composition comprising a cationically active functional group, a free radically active functional group, and a polymerization initiator capable of initiating free radical polymerization, wherein the number of moles of said cationically active functional groups per gram of said composition is no greater than about 0.0075, wherein said composition forms an adhesive capable of bonding to a tooth upon exposure to polymerization conditions; and (b) a dental material capable of bonding to said adhesive.
Claim 30
Dependent Claim
78 words
A kit comprising: (a) a composition comprising a cationically active functional group, a free radically active functional group, and a polymerization initiator capable of initiating free radical polymerization, wherein the number of moles of said cationically active functional groups per gram of said composition is no greater than about 0.0075, wherein said composition forms an adhesive capable of bonding to a tooth upon exposure to polymerization conditions; and (b) a dental material capable of bonding to said adhesive.
Claim 31
Dependent Claim
14 words
A kit according to claim 28 wherein said dental material comprises a dental composite.
Claim 32
Dependent Claim
22 words
A kit according to claim 29 wherein said dental composite comprises a cationically active functional group, a polymerization initiator, and a filler.
Claim 33
Dependent Claim
18 words
A kit according to claim 30 wherein said dental composite further comprises a free radically active functional group.
Claim 34
Independent Claim
105 words
A method for treating hard tissue comprising: (a) applying to hard tissue a first polymerizable composition comprising a free radically active functional group and a polymerization initiator capable of initiating free radical polymerization, said first composition being essentially free of polymerizable components having cationically active functional groups and being capable of forming an adhesive bonded to said hard tissue upon exposure to polymerization conditions; (b) applying a second polymerizable composition comprising (i) a cationically active functional group and (ii) a polymerization initiator capable of initiating cationic polymerization; and (c) exposing said second composition to polymerization conditions form a hardened composition adhered to said hard tissue.
Claim 35
Independent Claim
105 words
A method for treating hard tissue comprising: (a) applying to hard tissue a first polymerizable composition comprising a free radically active functional group and a polymerization initiator capable of initiating free radical polymerization, said first composition being essentially free of polymerizable components having cationically active functional groups and being capable of forming an adhesive bonded to said hard tissue upon exposure to polymerization conditions; (b) applying a second polymerizable composition comprising (i) a cationically active functional group and (ii) a polymerization initiator capable of initiating cationic polymerization; and (c) exposing said second composition to polymerization conditions form a hardened composition adhered to said hard tissue.
Claim 36
Dependent Claim
26 words
A method according to claim 32 comprising exposing said first composition to polymerization conditions to form said adhesive prior to application of said second polymerizable composition.
Claim 37
Dependent Claim
26 words
A method according to claim 32 comprising exposing said first composition to polymerization conditions to form said adhesive subsequent to application of said second polymerizable composition.
Claim 38
Dependent Claim
35 words
A method according to claim 32 further comprising treating said hard tissue prior to application of said first composition with an agent selected from the group consisting of etchants, primers, adhesion promoters, and combinations thereof.
Claim 39
Dependent Claim
22 words
A method according to claim 32 wherein said first composition comprises a functional group capable of covalently bonding to said second composition.
Claim 40
Dependent Claim
14 words
A method according to claim 36 wherein said functional group comprises a hydroxyl group.
Claim 41
Dependent Claim
13 words
A method according to claim 32 wherein said first composition comprises a polyol.
Claim 42
Dependent Claim
32 words
A method according to claim 32 wherein said first composition comprises a component having a free radically active functional group and a functional group capable of covalently bonding to said second composition.
Claim 43
Dependent Claim
25 words
A method according to claim 32 wherein said first composition comprises a hydroxy-fuictional acrylic acid ester, a hydroxy-functional methacrylic acid ester, or a combination thereof.
Claim 44
Dependent Claim
14 words
A method according to claim 32 wherein said second composition comprises an epoxy resin.
Claim 45
Dependent Claim
18 words
A method according to claim 32 wherein said second composition further comprises a free radically active functional group.
Claim 46
Dependent Claim
23 words
A method according to claim 42 wherein said second composition comprises an acrylic acid ester, a methacrylic acid ester, or a combination thereof.
Claim 47
Dependent Claim
26 words
A method according to claim 32 wherein said second composition comprises a component comprising a cationically active functional group and a free radically active functional group.
Claim 48
Dependent Claim
17 words
A method according to claim 32 wherein at least one of said initiators comprises an iodonium salt.
Claim 49
Dependent Claim
22 words
A method according to claim 32 wherein at least one of said initiators comprises an iodonium salt and a visible light sensitizer.
Claim 50
Dependent Claim
60 words
A method according to claim 32 wherein at least one of said initiators comprises an iodonium salt, a visible light sensitizer, and an electron donor, wherein said initiator has a photoinduced potential greater than or equal to that of 3-dimethylamino benzoic acid in a standard solution of 2.9×10 -5 moles/g diphenyl iodonium hexafluoroantimonate and 1.5×10 -5 moles/g camphorquinone in 2-butanone.
Claim 51
Dependent Claim
13 words
A method according to claim 32 wherein said hard tissue comprises tooth enamel.
Claim 52
Dependent Claim
12 words
A method according to claim 32 wherein said hard tissue comprises dentin.
Claim 53
Dependent Claim
14 words
A method according to claim 32 wherein said second composition comprises a dental material.
Claim 54
Dependent Claim
14 words
A method according to claim 32 wherein said second composition comprises a dental composite.
Claim 55
Dependent Claim
95 words
A kit comprising: (a) a first polymerizable composition comprising a free radically active functional group and a polymerization initiator capable of initiating free radical polymerization, said first composition being essentially free of polymerizable components having cationically active functional groups, wherein said first composition forms an adhesive capable of bonding to a tooth upon exposure to polymerization conditions; and (b) a second polymerizable composition comprising a cationically active functional group and a polymerization initiator capable of initiating cationic polymerization, wherein said second composition forms a hardened composition adhered to the tooth upon exposure to polymerization conditions.
Claim 56
Dependent Claim
95 words
A kit comprising: (a) a first polymerizable composition comprising a free radically active functional group and a polymerization initiator capable of initiating free radical polymerization, said first composition being essentially free of polymerizable components having cationically active functional groups, wherein said first composition forms an adhesive capable of bonding to a tooth upon exposure to polymerization conditions; and (b) a second polymerizable composition comprising a cationically active functional group and a polymerization initiator capable of initiating cationic polymerization, wherein said second composition forms a hardened composition adhered to the tooth upon exposure to polymerization conditions.
Claim 57
Dependent Claim
22 words
A kit according to claim 52 wherein said first composition comprises a hydroxy-functional component capable of covalently bonding to said second composition.
Claim 58
Dependent Claim
14 words
A kit according to claim 52 wherein said second composition comprises a dental composition.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2002-11-08 | 2003-05-10 | 2003-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-08 | 2007-05-10 | 2007-11-09 | $3760.00 | Window Closed / Lapsed |
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