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US 2024/0191009 A1Published application
Polyfunctionalized high-cis 1,4-polybutadiene and method for manufacturing the same
AssigneeKorea Kumho Petrochemical Co., Ltd.
InventorsHan Baek LEE, Hoo-Chae KIM, Jae Yun KIM, Seung Hyun DO, Beom Su JANG
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Abstract
Provided is a rubber mixture, which includes a unit structure derived from a first conjugated diene-based monomer and is functionalized with at least one of the compounds represented by Formulas 1 to 6; and a second low molecular weight rubber polymer, which includes a unit structure derived from a second conjugated diene-based monomer and is functionalized with at least one of the compounds represented by Formulas 1 to 6.
Claims14
A rubber mixture, comprising:
- a first high molecular weight rubber polymer, which includes a unit structure derived from a first conjugated diene-based monomer and is functionalized with at least one of the compounds represented by Formulas 1 to 6 below;
- and
- a second low molecular weight rubber polymer, which includes a unit structure derived from a second conjugated diene-based monomer and is functionalized with at least one of the compounds represented by Formulas 1 to 6 below,
- [Formula 1]
- ▮
- [Formula 2]
- ▮
- [Formula 3]
- ▮
- [Formula 4]
- ▮
- [Formula 5]
- ▮
- [Formula 6]
- ▮
- In the above formulas,
- A′ is nitrogen or phosphorus,
- B′ is oxygen or sulfur,
- C′ is silicon or tin,
- Y is hydrogen, —R2, —Si(R2)3, or —R1Si(OR2)3,
- Z is a functional group represented by Formula Z below,
- n is an integer of 1 to 3,
- m is an integer of 1 or more,
- k is 1 or 2,
- l is an integer of 1 to 4, and
- o is 0 or 1,
- [Formula Z]
- ▮
- R1 is each independently a linear or branched, substituted or unsubstituted C1-C10 alkylene group, and
- R2 is each independently a linear or branched, substituted or unsubstituted C1-C20 alkyl group, substituted or unsubstituted C3-C20 cycloalkyl group, or substituted or unsubstituted C6-C20 aryl group.
27 more elements
A method of preparing a rubber mixture, comprising:
- (a1) preparing a first high molecular weight rubber polymer by allowing a solution containing a first conjugated diene-based monomer, a first solvent, and a first catalyst to react, and further adding and allowing at least one of the compounds represented by Formulas 1 to 6 to react;
- (a2) preparing a second low molecular weight rubber polymer by allowing a solution containing a second conjugated diene-based monomer, a second solvent, and a second catalyst to react, and further adding and allowing at least one of the compounds represented by Formulas 1 to 6 to react;
- and
- (b) mixing the first high molecular weight rubber polymer and the second low molecular weight rubber polymer:
- [Formula 1]
- ▮
- [Formula 2]
- ▮
- [Formula 3]
- ▮
- [Formula 4]
- ▮
- [Formula 5]
- ▮
- [Formula 6]
- ▮
- In the formulas,
- A′ is nitrogen or phosphorus,
- B′ is oxygen or sulfur,
- C′ is silicon or tin,
- Y is hydrogen, —R2, —Si(R2)3, or —R1Si(OR2)3,
- Z is a functional group represented by Formula Z below,
- n is an integer of 1 to 3,
- m is an integer of 1 or more,
- k is 1 or 2,
- l is an integer of 1 to 4,
- o is 0 or 1,
- [Formula Z]
- ▮
- R1 is each independently a linear or branched, substituted or unsubstituted C1-C10 alkylene group, and
- R2 is each independently a linear or branched, substituted or unsubstituted C1-C20 alkyl group, substituted or unsubstituted C3-C20 cycloalkyl group, or substituted or unsubstituted C6-C20 aryl group.
28 more elements
Dependencies are inferred from the claim text.