JP2016030753A5

JP2016030753A5 -

Info

Publication number: JP2016030753A5
Application number: JP2015051943A
Authority: JP
Filing date: 2015-03-16
Publication date: 2017-06-08
Anticipated expiration: 2034-07-29

Claims

A method for producing a composite material including a filler, a polymerizable monomer, and a polymerization initiator,
The manufacturing method of the composite material characterized by passing through the mixed polymerizable monomer preparation process shown below, a silane processing process, a silane processing filler preservation | save process, and a composite material manufacturing process.
The mixed polymerizable monomer preparation step is a step of mixing a polymerizable monomer and a polymerization initiator to prepare a mixed polymerizable monomer,
The silane treatment step is to produce a silane treatment liquid in which 1 to 40% of a silane coupling agent and 99 to 60% of an organic solvent and / or water are mixed, and a filler is put into a mixing container to be in a range of 1 to 60 ° C. The mixing time is 1 minute to 24 hours, and the step of producing a silane-treated filler by dropping a silane treatment agent corresponding to 1 to 15% of the silane coupling agent with respect to the amount of the filler during mixing,
-The silane treatment filler storage step is a step of storing the silane treated silane treatment filler for 30 to 600 days,
-The composite material manufacturing process is a process of manufacturing a composite material by mixing a mixed polymerizable monomer and a silane-treated filler.

In the composite material manufacturing process, after adding 0.1 to 9 parts by weight of the silane treatment filler in 1 part by weight of the mixed polymerizable monomer, the silane treatment is performed at 5 to 60 ° C. for 5 to 40 minutes. The filler kneading step is performed, and then defoaming is performed while kneading the mixed polymerizable monomer and the silane-treated filler at 5 to 200 Torr and a defoaming time of 5 to 30 minutes. 2. A method for producing a composite material according to 1.

In the composite material manufacturing step, after adding 0.01 to 0.2 part by weight of the fine particle filler in 1 part by weight of the mixed polymerizable monomer, mixing is performed at 5 to 60 ° C. for 5 to 30 minutes. The polymerizable monomer and the fine particle filler are kneaded, and then the mixed polymerizable monomer and the fine particle filler are defoamed at 5 to 200 Torr and the defoaming time is 5 to 30 minutes. After the addition of 0.1 to 9 parts by weight, the mixed polymerizable monomer, the fine particle filler, and the silane-treated filler are kneaded at 5 to 60 ° C. for 5 to 40 minutes, and thereafter 5 to 200 Torr. The method for producing a composite material according to claim 1, wherein the defoaming time is 5 to 30 minutes while the mixed polymerizable monomer, the fine particle filler, and the silane-treated filler are kneaded. .

In the said mixed polymerizable monomer preparation process, mixing temperature is 1-60 degreeC and mixing time is 1 minute-24 hours, The composite material as described in any one of Claims 1-3 characterized by the above-mentioned. Production method.

5. The method for producing a composite material according to claim 1, further comprising a composite material storage step shown below after the completion of the composite material production step. 6.
The composite material storage step is a step of storing 1 to 8 liters of composite material manufactured in the composite material manufacturing step within a storage temperature of 1 to 25 ° C. and a storage period of 10 days to 1.5 years.

6. The method for producing a composite material according to claim 5, further comprising a composite material evaluation step in the composite material storage step.

The composite material manufacturing method according to claim 5 or 6, further comprising a composite material filling step described below after the composite material storage step.
A composite material filling step is a step of filling a small amount storage container having a capacity of 1 to 50 cc with a composite material extruded from a nozzle using a filling machine.

The method for producing a composite material according to any one of claims 1 to 7, further comprising a mixed polymerizable monomer evaluation step in the mixed polymerizable monomer storage step.

It is a composite material manufactured by the manufacturing method of the composite material as described in any one of Claims 1-8, Comprising: The said composite material sets a flow value 120 days after manufacture completion as a, 3 years after completion of manufacture A composite material, wherein a flow value is b, and a flow rate reduction rate (ab) / a is 10% or less.

In a composite material containing a filler, a polymerizable monomer, and a polymerization initiator,
A mixed polymerizable monomer preparation step of preparing a mixed polymerizable monomer by mixing a polymerizable monomer and a polymerization initiator;
A mixed polymerizable monomer storage step for storing the mixed polymerizable monomer in a storage container;
A silane treatment process for producing a silane treatment filler by silane treatment on the filler,
Silane treatment filler storage step of storing the silane treatment filler in a storage container,
A composite material manufacturing process for manufacturing a composite material by mixing a mixed polymerizable monomer and a silane treatment filler,
A composite material storage process for storing the composite material in a storage container;
Composite material filling process for filling a small amount of composite material into a storage container,
A composite material obtained through a small-volume storage container storage process for storing in a filled small-volume storage container,
The composite material is characterized in that a flow value after 120 days from the end of production is a, a flow value after 3 years from the end of production is b, and the rate of decrease in flow value (ab) / a is 10% or less. material.

In a composite material containing a filler, a polymerizable monomer, and a polymerization initiator,
A mixed polymerizable monomer preparation step of preparing a mixed polymerizable monomer by mixing a polymerizable monomer and a polymerization initiator;
A silane treatment process for producing a silane treatment filler by silane treatment on the filler,
Silane treatment filler storage step of storing the silane treatment filler in a storage container,
A composite material manufacturing process for manufacturing a composite material by mixing a mixed polymerizable monomer and a silane treatment filler,
Composite material filling process for filling a small amount of composite material into a storage container,
A composite material obtained through a small-volume storage container storage process for storing in a filled small-volume storage container,
Through the composite material manufacturing process, the fine particle filler kneading step and the fine particle filler kneading defoaming step, the silane treatment filler kneading step and the silane treatment filler kneading defoaming step,
The composite material is characterized in that a flow value after 120 days from the end of production is a, a flow value after 3 years from the end of production is b, and the rate of decrease in flow value (ab) / a is 10% or less. material.

The application which uses the composite material as described in any one of Claims 9-11 for dentistry.