GB1479329A - Silica filler useful in dental and medical restorative materials - Google Patents
Silica filler useful in dental and medical restorative materialsInfo
- Publication number
- GB1479329A GB1479329A GB42177/74A GB4217774A GB1479329A GB 1479329 A GB1479329 A GB 1479329A GB 42177/74 A GB42177/74 A GB 42177/74A GB 4217774 A GB4217774 A GB 4217774A GB 1479329 A GB1479329 A GB 1479329A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silica
- acid
- silica filler
- dental
- sept
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/28—Compounds of silicon
- C09C1/30—Silicic acid
- C09C1/309—Combinations of treatments provided for in groups C09C1/3009 - C09C1/3081
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/884—Preparations for artificial teeth, for filling teeth or for capping teeth comprising natural or synthetic resins
- A61K6/887—Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
- C09C3/043—Drying, calcination
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/06—Treatment with inorganic compounds
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Plastic & Reconstructive Surgery (AREA)
- Dental Preparations (AREA)
- Silicon Compounds (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
1479329 Silica filler LEE PHARMACEUTICALS 27 Sept 1974 [28 Sept 1973] 42177/74 Heading ClA A naturally occurring silica is (a) treated with excess strong mineral acid (as defined) in aqueous solution at between 30‹ C. and the boiling point of the acid for at least one hour and (b) heating the silica to a temperature of from 900‹ to 1200‹ C. to remove the acid insoluble impurities. Strong mineral acids are those which will remove acid-soluble impurities, but will not dissolve silica. Typical acids are HCl (5% to saturation), H 2 SO 4 (10 to 100%) and HNO 3 (3% to saturation). The acid (a) and thermal (b) treatment steps may be performed in any sequence and either step may be repeated a plurality of times. The treated silica may be coated with silanes to provide effective bonding with epoxy or other synthetic resinous material.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US40180873A | 1973-09-28 | 1973-09-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1479329A true GB1479329A (en) | 1977-07-13 |
Family
ID=23589308
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB42177/74A Expired GB1479329A (en) | 1973-09-28 | 1974-09-27 | Silica filler useful in dental and medical restorative materials |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS50160351A (en) |
AU (1) | AU7381874A (en) |
DE (1) | DE2446546A1 (en) |
FR (1) | FR2246497B1 (en) |
GB (1) | GB1479329A (en) |
ZA (1) | ZA746188B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2192388A (en) * | 1986-05-09 | 1988-01-13 | Longcliffe Quarries Ltd | Process for leaching silica sand to reduce the iron content thereof |
US5708051A (en) * | 1994-12-23 | 1998-01-13 | Heraeus Kulzer Gmbh | Polymerizable dental material |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2405578C3 (en) * | 1974-02-06 | 1988-07-28 | Kulzer & Co Gmbh, 6380 Bad Homburg | Dental material containing polymerizable binder and its use for teeth and dental prostheses |
SE458906B (en) * | 1976-02-09 | 1989-05-22 | Minnesota Mining & Mfg | DENTAL RECONSTRUCTION MATERIAL MANUFACTURED BY MIXING AND POLYMERIZING A LIQUID ORGANIC POLYMERIZABLE BINDING AND FINISHED PARTICULAR FILLING AGENT |
DE3300321A1 (en) | 1983-01-07 | 1984-07-12 | Ernst Mühlbauer KG, 2000 Hamburg | METHOD FOR PRODUCING SURFACE-REDUCED SILICA GELS AND THEIR USE AS FILLER FOR DENTAL MATERIALS |
EP4205724A1 (en) | 2021-12-29 | 2023-07-05 | Ivoclar Vivadent AG | Self-adhesive dental composite cements with good transparency based on acid-treated fillers |
-
1974
- 1974-09-27 GB GB42177/74A patent/GB1479329A/en not_active Expired
- 1974-09-27 ZA ZA00746188A patent/ZA746188B/en unknown
- 1974-09-28 JP JP49112229A patent/JPS50160351A/ja active Pending
- 1974-09-28 DE DE19742446546 patent/DE2446546A1/en active Pending
- 1974-09-30 AU AU73818/74A patent/AU7381874A/en not_active Expired
- 1974-09-30 FR FR7432817A patent/FR2246497B1/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2192388A (en) * | 1986-05-09 | 1988-01-13 | Longcliffe Quarries Ltd | Process for leaching silica sand to reduce the iron content thereof |
US5708051A (en) * | 1994-12-23 | 1998-01-13 | Heraeus Kulzer Gmbh | Polymerizable dental material |
Also Published As
Publication number | Publication date |
---|---|
FR2246497B1 (en) | 1977-10-21 |
JPS50160351A (en) | 1975-12-25 |
FR2246497A1 (en) | 1975-05-02 |
DE2446546A1 (en) | 1975-04-17 |
ZA746188B (en) | 1975-11-26 |
AU7381874A (en) | 1976-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |