Method for producing polymer and polymer product
OwnerTaichi Nemoto, Chiaki Tanakainventors
Life of this patent
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Abstract
A method for producing a polymer, including: (i) bringing a compressive fluid and raw materials containing a ring-opening polymerizable monomer into contact with each other at a mixing ratio represented by the following formula, to thereby allow the ring-opening polymerizable monomer to carry out ring-opening polymerization in the presence of a metal catalyst: 1{Mass of the raw materials/(Mass of the raw materials+Mass of the compressive fluid)}0.5.
Claims13
A method, comprising:
- (i) contacting a compressive fluid and raw materials comprising a ring-opening polymerizable monomer with each other at a mixing ratio of formula, to thereby allow the ring-opening polymerizable monomer to carry out ring-opening polymerization in the presence of a metal catalyst:
- 1
- >
- Mass
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- of
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- the
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- raw
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- materials
- Mass
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- of
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- raw
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- materials
- +
- Mass
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- of
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- the
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- compressive
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- fluid
- ≥
- 0.5
- .
A method, comprising:
- (i) continuously supplying and bringing a compressive fluid and raw materials comprising a ring-opening polymerizable monomer into contact with each other under the following conditions, to thereby allow the ring-opening polymerizable monomer to carry out ring-opening polymerization in the presence of a metal catalyst and continuously generate a polymer:
- 1
- >
- Feeding
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- speed
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- of
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- the
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- raw
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- materials
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- (
- g
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- /
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- min
- )
- Feeding
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- speed
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- of
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- the
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- raw
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- materials
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- (
- g
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- /
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- min
- )
- +
- Feeding
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- speed
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- of
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- the
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- compressive
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- fluid
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-
- (
- g
-
- /
-
- min
- )
- ≥
- 0.5
- .
A polymer product, which is substantially free from an organic solvent, comprising ring-opening polymerizable monomer residues in an amount of 3 mol % or less, and having a weight average molecular weight of 100,000 or greater.
Dependencies are inferred from the claim text.