CA1134532A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Provisional crown-and-bridge resin
Assignee: Den Mat Inc
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Filing: 1981-01-13
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Granted: 1982-10-26
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Expires: 2001-01-13
Abstract
Abstract ABSTRACT OF THE DISCLOSURE A provisional crown-and-bridge resin comprising a liquid resin component and a powder component. The liquid resin component contains tetrahydrofurfuryl methacrylate as a major ingredient and is free from methyl methacrylate. It also contains an anti-oxidant and an accelerator. The pow-der component contains poly (ethyl methacrylate) as a major ingredient and a curing agent for the resin component. The powder is mixed with the resin shortly before application at a ratio of about two to about five parts of powder to one part of liquid resin by weight, to give a suitably flowing mixture. The resin component may also contain ethyl metha-crylate as a major ingredient and may contain ethoxylated bisphenol A dimethacrylate as a major ingredient. The pow-der may include a substantial proportion of amorphous silica and preferably incorporates a substantial amount of X-ray opaque barium glass.
Inventors
- 👤 Robert L. Ibsen
- 👤 William R. Glace
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-24 23:24
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/04; C08F265/06; A; A61; A61K; A61K6/00; A61K6/80; A61K6/884; A61K6/887; Y; Y10; Y10S; Y10S528/00; Y10S528/92
Claims Analysis
Total Claims: 47
Claim 1
Independent Claim
93 words
A provisional crown-and-bridge resin comprising: a liquid resin component and a powder component, said liquid resin component containing tetrahydrofurfuryl methacryl-ate as a major ingredient and being free from methyl methacrylate and also con-taining an anti-oxidant and an accelerator, said powder component containing poly (ethyl methacrylate) as a major ingredient and a curing agent for the resin component, said powder being mixed with said resin shortly before application at a ratio of about two to about five parts of powder to one part of liquid resin by weight, to give a suitable flowing mixture.
Claim 2
Dependent Claim
93 words
A provisional crown-and-bridge resin comprising: a liquid resin component and a powder component, said liquid resin component containing tetrahydrofurfuryl methacryl-ate as a major ingredient and being free from methyl methacrylate and also con-taining an anti-oxidant and an accelerator, said powder component containing poly (ethyl methacrylate) as a major ingredient and a curing agent for the resin component, said powder being mixed with said resin shortly before application at a ratio of about two to about five parts of powder to one part of liquid resin by weight, to give a suitable flowing mixture.
Claim 3
Dependent Claim
19 words
The provisional crown-and-bridge resin of claim 1, wherein said resin component also contains ethyl methacrylate as a major ingredient.
Claim 4
Dependent Claim
21 words
The provisional crown-and-bridge resin of claim 2 wherein said resin component also contains ethoxylated bisphenol A dimethacrylate as a major com-ponent.
Claim 5
Dependent Claim
17 words
The provisional crown-and-bridge resin of claim 1 wherein said pow-der includes a substantial proportion of amorphous silica.
Claim 6
Dependent Claim
19 words
The provisional crown-and-bridge resin of claim 1 wherein said pow-der incorporates a substantial amount of x-ray opaque barium glass.
Claim 7
Dependent Claim
92 words
A provisional crown-and-bridge resin comprising: a liquid resin component, containing as its major ingredients ethyl methacrylate and tetrahydrofurfuryl methacrylate and, as minor ingredients, an anti-oxidant and a cure accelerator, and, a powder component, containing as its major 13. ingredients poly (ethyl methacrylate) and X-ray opaque filler and, as a minor ingredient, a curing agent for said liquid resin component, said resin and powder components being mixed to a desired consistency with the powder present in amounts by weight from about two to about five times the amount by weight of the resin.
Claim 8
Dependent Claim
92 words
A provisional crown-and-bridge resin comprising: a liquid resin component, containing as its major ingredients ethyl methacrylate and tetrahydrofurfuryl methacrylate and, as minor ingredients, an anti-oxidant and a cure accelerator, and, a powder component, containing as its major 13. ingredients poly (ethyl methacrylate) and X-ray opaque filler and, as a minor ingredient, a curing agent for said liquid resin component, said resin and powder components being mixed to a desired consistency with the powder present in amounts by weight from about two to about five times the amount by weight of the resin.
Claim 9
Dependent Claim
19 words
The resin of claim 6 having, as a minor ingre-dient of the liquid resin component, an ultra-violet-light absorbing material.
Claim 10
Dependent Claim
89 words
A provisional crown-and-bridge resin comprising an intimate mixture of: a liquid resin component containing as its major ingredient a blend of ethyl methacrylate, tetrahydrofurfuryl methacrylate, and ethoxylated bisphenol A dimethacrylate, and, as minor ingredients an anti-oxidant and a cure accelerator, and a powder component having as its principal ingre-dient poly (ethyl methacrylate) and, as a minor ingredient, a curing agent for the liquid resin component, the powder component being present in an amount of about two to about five times as much, by weight, as the liquid resin component.
Claim 11
Dependent Claim
89 words
A provisional crown-and-bridge resin comprising an intimate mixture of: a liquid resin component containing as its major ingredient a blend of ethyl methacrylate, tetrahydrofurfuryl methacrylate, and ethoxylated bisphenol A dimethacrylate, and, as minor ingredients an anti-oxidant and a cure accelerator, and a powder component having as its principal ingre-dient poly (ethyl methacrylate) and, as a minor ingredient, a curing agent for the liquid resin component, the powder component being present in an amount of about two to about five times as much, by weight, as the liquid resin component.
Claim 12
Dependent Claim
19 words
The provisional crown-and-bridge resin of claim 8 wherein the powder component also includes a sub-stantial amount of barium glass.
Claim 13
Dependent Claim
19 words
The provisional crown-and-bridge resin of claim 8 wherein the powder compound also includes a sub-stantial amount of amorphous silica.
Claim 14
Dependent Claim
19 words
The provisional crown-and-bridge resin of claim 8 wherein said liquid resin compound also includes an ultra-violet-light absorbing agent. 14.
Claim 15
Dependent Claim
32 words
A provisional crown-and-bridge resin con-sisting essentially of a liquid resin component and a pow-der component mixed to a desired consistency, said liquid resin consisting essentially of: said powder component consisting essentially of:
Claim 16
Dependent Claim
32 words
A provisional crown-and-bridge resin con-sisting essentially of a liquid resin component and a pow-der component mixed to a desired consistency, said liquid resin consisting essentially of: said powder component consisting essentially of:
Claim 17
Dependent Claim
17 words
The provisional crown-and-bridge resin of claim 12 wherein said anti-oxidant is chosen for the group consisting of:
Claim 18
Dependent Claim
19 words
The provisional crown-and-bridge resin of claim 12 wherein the cure accelerator is chosen for the group consisting of: 15.
Claim 19
Dependent Claim
38 words
The provisional crown-and bridge resin of claim 12 wherein the curing agent is benzoyl peroxide at quantities from about 0.17% to about 5%, the amount in-creasing with decrease in the amount of tertiary amine in the liquid resin.
Claim 20
Dependent Claim
15 words
The provisional crown-and-bridge resin of claim 12 containing an effective amount of ultra-violet-light absorbing agent.
Claim 21
Dependent Claim
19 words
The provisional crown-and-bridge resin of claim 16 wherein said absorbing agent is 2-hydroxy-4-methoxy-benzophenone, up to 2.0 parts by weight.
Claim 22
Dependent Claim
54 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Tetrahydrofurfuryl methacrylate 60 Ethoxylated bisphenol A dimethacrylate 40 Butylated hydroxytoluene 0.1 2-hydroxy-4-methoxybenzophenone 2.0 2 hydroxyethyl-p-toluidine 2.0 and a powder component consisting essentially of poly (ethyl methacrylate) with 1.5% benzoyl peroxide, the powder-to-resin ratio being about 3.5:1Ø
Claim 23
Dependent Claim
54 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Tetrahydrofurfuryl methacrylate 60 Ethoxylated bisphenol A dimethacrylate 40 Butylated hydroxytoluene 0.1 2-hydroxy-4-methoxybenzophenone 2.0 2 hydroxyethyl-p-toluidine 2.0 and a powder component consisting essentially of poly (ethyl methacrylate) with 1.5% benzoyl peroxide, the powder-to-resin ratio being about 3.5:1Ø
Claim 24
Dependent Claim
54 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Tetrahydrofurfuryl methacrylate 60 Ethoxylated bisphenol A dimethacrylate 40 Butylated hydroxytoluene 0.1 2-hydroxy-p-toluidine 1.0 2-hydroxy-4-methoxybenzophenone 2.0 and a powder component consisting essentially of poly (ethyl methacrylate) with 1.5% benzoyl peroxide, 16. the powder-to-resin ratio being about 3.5:1Ø
Claim 25
Dependent Claim
54 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Tetrahydrofurfuryl methacrylate 60 Ethoxylated bisphenol A dimethacrylate 40 Butylated hydroxytoluene 0.1 2-hydroxy-p-toluidine 1.0 2-hydroxy-4-methoxybenzophenone 2.0 and a powder component consisting essentially of poly (ethyl methacrylate) with 1.5% benzoyl peroxide, 16. the powder-to-resin ratio being about 3.5:1Ø
Claim 26
Dependent Claim
74 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Tetrahydrofurfuryl methacrylate 60 Ethyl methacrylate 40 Butylated hydroxytoluene 0.1 2-hydroxy-4-methoxybenzophenone 2.0 2-hydroxyethyl-p-toluidine 1.0 and a powder component consisting essentially of: Ingredient Parts by Weight Poly (ethyl methacrylate) with 1.5% benzoyl peroxide 50 a 90 to 10 mixture of poly (ethyl methacrylate) and poly (methyl methacrylate) without added benzoyl peroxide 50, the powder-to-resin ratio being about 3.5:1Ø
Claim 27
Dependent Claim
74 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Tetrahydrofurfuryl methacrylate 60 Ethyl methacrylate 40 Butylated hydroxytoluene 0.1 2-hydroxy-4-methoxybenzophenone 2.0 2-hydroxyethyl-p-toluidine 1.0 and a powder component consisting essentially of: Ingredient Parts by Weight Poly (ethyl methacrylate) with 1.5% benzoyl peroxide 50 a 90 to 10 mixture of poly (ethyl methacrylate) and poly (methyl methacrylate) without added benzoyl peroxide 50, the powder-to-resin ratio being about 3.5:1Ø
Claim 28
Dependent Claim
69 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Tetrahydrofurfuryl methacrylate 40 Ethyl methacrylate 60 2-hydroxyethyl-p-toluidine 0.5 and a powder component consisting essentially of: Ingredient Parts by Weight Poly (ethyl methacrylate) with 1.5% benzoyl peroxide 50 a 90 to 10 mixture of poly (ethyl methacrylate)and poly (methyl methacrylate) without added benzoyl peroxide 50, the powder-to-resin ratio being about 3.5:1Ø 17.
Claim 29
Dependent Claim
69 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Tetrahydrofurfuryl methacrylate 40 Ethyl methacrylate 60 2-hydroxyethyl-p-toluidine 0.5 and a powder component consisting essentially of: Ingredient Parts by Weight Poly (ethyl methacrylate) with 1.5% benzoyl peroxide 50 a 90 to 10 mixture of poly (ethyl methacrylate)and poly (methyl methacrylate) without added benzoyl peroxide 50, the powder-to-resin ratio being about 3.5:1Ø 17.
Claim 30
Dependent Claim
49 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Tetrahydrofurfuryl methacrylate 50 Ethyl methacrylate 50 2-hydroxyethyl-p-toluidine 0.3 2-hydroxy-4-methoxybenzophenone 2.0 and a powder component consisting essentially of poly (ethyl methacrylate) with 1.5% added benzoyl peroxide, the powder-to-resin ratio being about 3.5:1Ø
Claim 31
Dependent Claim
49 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Tetrahydrofurfuryl methacrylate 50 Ethyl methacrylate 50 2-hydroxyethyl-p-toluidine 0.3 2-hydroxy-4-methoxybenzophenone 2.0 and a powder component consisting essentially of poly (ethyl methacrylate) with 1.5% added benzoyl peroxide, the powder-to-resin ratio being about 3.5:1Ø
Claim 32
Dependent Claim
52 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Tetrahydrofurfuryl methacrylate 30 Ethyl methacrylate 70 2-hydroxyethyl-p-toluidine 1.0 2-hydroxy-4-methoxybenzophenone 2.0 Butylated hydroxytoluene 0.1 and a powder component consisting essentially of poly (ethyl methacrylate) with 1.5% added benzoyl peroxide, the powder-to-resin ratio being about 3.5:1Ø
Claim 33
Dependent Claim
52 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Tetrahydrofurfuryl methacrylate 30 Ethyl methacrylate 70 2-hydroxyethyl-p-toluidine 1.0 2-hydroxy-4-methoxybenzophenone 2.0 Butylated hydroxytoluene 0.1 and a powder component consisting essentially of poly (ethyl methacrylate) with 1.5% added benzoyl peroxide, the powder-to-resin ratio being about 3.5:1Ø
Claim 34
Dependent Claim
52 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Tetrahydrofurfuryl methacrylate 56 Ethyl methacrylate 85 N,N-3,5-tetramethyl aniline 1.0 Butylated hydroxytoluene 0.14 and a powder component consisting essentially of poly (ethyl methacrylate) with 1.5% added benzoyl peroxide, the powder-to-resin ratio being about 3.5:1Ø 18.
Claim 35
Dependent Claim
52 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Tetrahydrofurfuryl methacrylate 56 Ethyl methacrylate 85 N,N-3,5-tetramethyl aniline 1.0 Butylated hydroxytoluene 0.14 and a powder component consisting essentially of poly (ethyl methacrylate) with 1.5% added benzoyl peroxide, the powder-to-resin ratio being about 3.5:1Ø 18.
Claim 36
Dependent Claim
54 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Tetrahydrofurfuryl methacrylate 56 Ethyl methacrylate 85 N,N-3,5-tetramethyl aniline 2.0 Butylated hydroxytoluene 0.14 and a powder component consisting essentially of poly (ethyl methacrylate) with 1.5% added benzoyl peroxide, the powder-to-resin ratios from about 2:1 to about 5:1.
Claim 37
Dependent Claim
54 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Tetrahydrofurfuryl methacrylate 56 Ethyl methacrylate 85 N,N-3,5-tetramethyl aniline 2.0 Butylated hydroxytoluene 0.14 and a powder component consisting essentially of poly (ethyl methacrylate) with 1.5% added benzoyl peroxide, the powder-to-resin ratios from about 2:1 to about 5:1.
Claim 38
Dependent Claim
57 words
a provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Ethyl methacrylate 40 Tetrahydrofurfuryl methacrylate 60 2-hydroxy-4-methoxybenzophenone 2.0 and a powder component consisting essentially of: Ingredient Parts by Weight Poly (ethyl methacrylate) with 1.5% benzoyl peroxide 70 Barium glass coated with silane 30, the powder-to-resin ratio being about 4:1.
Claim 39
Dependent Claim
57 words
a provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Ethyl methacrylate 40 Tetrahydrofurfuryl methacrylate 60 2-hydroxy-4-methoxybenzophenone 2.0 and a powder component consisting essentially of: Ingredient Parts by Weight Poly (ethyl methacrylate) with 1.5% benzoyl peroxide 70 Barium glass coated with silane 30, the powder-to-resin ratio being about 4:1.
Claim 40
Dependent Claim
38 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Ethyl methacrylate 34.83 Tetrahydrofurfuryl methacrylate 52.25 Ethoxylated bisphenol A dimethacrylate 9.68 Butylated hydroxytoluene 0.10 2-hydroxyethyl-p-toluidine 1.12 2-hydroxy-4-methoxybenzopherine 1.94 19. .
Claim 41
Dependent Claim
38 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: Ingredient Parts by Weight Ethyl methacrylate 34.83 Tetrahydrofurfuryl methacrylate 52.25 Ethoxylated bisphenol A dimethacrylate 9.68 Butylated hydroxytoluene 0.10 2-hydroxyethyl-p-toluidine 1.12 2-hydroxy-4-methoxybenzopherine 1.94 19. .
Claim 42
Dependent Claim
38 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: the ratio of Part I and Part II lying in the range of 1:9 to 9:1, and a powder component consisting essentially of: .
Claim 43
Dependent Claim
38 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: the ratio of Part I and Part II lying in the range of 1:9 to 9:1, and a powder component consisting essentially of: .
Claim 44
Dependent Claim
27 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: and a powder component consisting essentially of: the powder-to-resin ratio being about 3.5:1Ø
Claim 45
Dependent Claim
27 words
A provisional crown-and-bridge resin, con-sisting essentially of a liquid resin component consisting essentially of: and a powder component consisting essentially of: the powder-to-resin ratio being about 3.5:1Ø
Claim 46
Dependent Claim
137 words
A provisional crown-and-bridge resin comprising: a liquid resin component and a powder component, said liquid resin component containing as major ingred-ient either tetrahydrofurfurylmethacrylate or tetrahydrofurfuryl-methacrylate and at least one resin chosen from ethyl methacrylate and ethoxylated bisphenol A dimethylacrylate, and also containing an effective amount of an antioxidant and an accelerator; said powder component containing either poly (ethyl methacrylate) or poly (ethyl methacrylate) with poly (methyl methacrylate) in an amount of up to about 5 parts by weight, to-gether with a curing agent for the resin component and, if desired, a solid chosen from amorphous silica and an X-ray opaque filler; said powder being mixed with said resin shortly before application at a ratio of about two to about five parts of powder to one part of liquid resin by weight, to give a suitably flowing mixture.
Claim 47
Dependent Claim
137 words
A provisional crown-and-bridge resin comprising: a liquid resin component and a powder component, said liquid resin component containing as major ingred-ient either tetrahydrofurfurylmethacrylate or tetrahydrofurfuryl-methacrylate and at least one resin chosen from ethyl methacrylate and ethoxylated bisphenol A dimethylacrylate, and also containing an effective amount of an antioxidant and an accelerator; said powder component containing either poly (ethyl methacrylate) or poly (ethyl methacrylate) with poly (methyl methacrylate) in an amount of up to about 5 parts by weight, to-gether with a curing agent for the resin component and, if desired, a solid chosen from amorphous silica and an X-ray opaque filler; said powder being mixed with said resin shortly before application at a ratio of about two to about five parts of powder to one part of liquid resin by weight, to give a suitably flowing mixture.
References Cited (Backward Citations)
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