CA1159984A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Dental material having a plastics material base
Assignee: Kulzer GmbH
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Filing: 1981-08-31
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Granted: 1984-01-03
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Expires: 2001-08-31
Abstract
Abstract A B S T R A C T X-ray opaque dental materials having a plastics material base contain as a filler calcium, strontium, barium, lanthanum, rare earth metal, tantalum and/or hafnium aluminosilicates having a zeolite structure.
Inventors
- 👤 Roland Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-24 23:23
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; A; A61; A61K; A61K6/00; A61K6/80; A61K6/884; A61K6/887
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
119 words
1 A dental composition which when polymerized is (i) opaque to X-ray radiation and which (ii) can be polished to a high gloss comprising a polymerizable binder which polymerizes to from a polymerized dental composition and contains fine particles of an inorganic filler which imparts X-ray opacity to said composition, said inorganic filler comprising a zeolitic alumino silicate of at least one metal selected from the group consisting of calcium, strontium, barium, lanthanum, rare earth metals having atomic numbers from 58-71, tantalum, and hafnium, said polymerizable binder is at least one binder selected from the group consisting of the esters of acrylic acid with mono- and polyhydric alcohols, urethane-acrylates, urethane-methacrylates and the reaction product of glycidyl-methacrylate and bisphenol A.
Claim 2
Dependent Claim
119 words
1 A dental composition which when polymerized is (i) opaque to X-ray radiation and which (ii) can be polished to a high gloss comprising a polymerizable binder which polymerizes to from a polymerized dental composition and contains fine particles of an inorganic filler which imparts X-ray opacity to said composition, said inorganic filler comprising a zeolitic alumino silicate of at least one metal selected from the group consisting of calcium, strontium, barium, lanthanum, rare earth metals having atomic numbers from 58-71, tantalum, and hafnium, said polymerizable binder is at least one binder selected from the group consisting of the esters of acrylic acid with mono- and polyhydric alcohols, urethane-acrylates, urethane-methacrylates and the reaction product of glycidyl-methacrylate and bisphenol A.
Claim 3
Dependent Claim
18 words
The composition of claim 1 containing said zeolitic alumino-silicate in an amount between 30% and 85% by weight.
Claim 4
Dependent Claim
25 words
The composition of claim 2 wherein said zeolitic alumino-silicate is in the form of particles having a size of between about 0.05 and 200 µm.
Claim 5
Dependent Claim
16 words
The composotion of claim 1 wherein said zeolitic alumino-silicate has been treated with an organic silane.
Claim 6
Dependent Claim
16 words
The composition of claim 3 wherein said zeolitic alumino-silicate has been treated with an organic silane.
Claim 7
Dependent Claim
13 words
The composition of claim 1, wherein said zeolitic alumino-silicate is a cerium alumino-silicate.
Claim 8
Dependent Claim
27 words
A prosthetic dental appliance comprising a shaped body portion which is opaque to X-rays which is produced by shaping and curing the dental composition of claim 1.
Claim 9
Dependent Claim
27 words
A prosthetic dental appliance comprising a shaped body portion which is opaque to X-rays which is produced by shaping and curing the dental composition of claim 6.
Claim 10
Dependent Claim
33 words
The composition of claim 6, wherein said polymer-izable binder is at least one binder selected from the group consisting of the esters of acrylic acid with mono- and polyhydric alcohols, urethane-acrylates, and urethane-methacrylates.
Claim 11
Dependent Claim
19 words
The composition of claim 6, wherein said poly-merizable binder is the urethane-methacrylate obtained by reacting 2,4,4-trimethylhexamethylenediisocyanate, hydroxy-ethylmethacrylate, and triethyleneglycoldimethacrylate.
Claim 12
Dependent Claim
18 words
The composition of claim 6, wherein said poly-merizable binder is the reaction product of glycidylmeth-acrylate and bisphenol A.
Claim 13
Dependent Claim
27 words
A prosthetic dental appliance comprising a shaped body portion which is opaque to X-rays which is produced by shaping and curing the dental composition of claim 9.
Claim 14
Dependent Claim
27 words
A prosthetic dental appliance comprising a shaped body portion which is opaque to X-rays which is produced by shaping and curing the dental composition of claim 10.
Claim 15
Dependent Claim
27 words
A prosthetic dental appliance comprising a shaped body portion which is opaque to X-rays which is produced by shaping and curing the dental composition of claim 11.
Claim 16
Dependent Claim
26 words
The composition of claim 10 wherein said polymerizable binder is a mixture of 60% by weight of said urethane-meth-acrylate and 40% by weight of said triethyleneglycoldimethacrylate.
References Cited (Backward Citations)
No citation records indexed.
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