The present invention relates to a plasticizer composition, which includes a terephthalate-based material in which alkyl groups bonded to a diester group have a weight average carbon number of greater than 7 and less than 9; and a monobenzoate-based material including one or more compounds represented by Chemical Formula 1, wherein a weight ratio of the terephthalate-based material and the monobenzoate-based material is 99:1 to 1:99. Such a plasticizer composition is environmentally friendly, and can also improve properties such as tensile strength, elongation rate, hardness, and the like and migration resistance to stress so as to be suitable for use.

The present invention relates to a plasticizer composition, which includes a terephthalate-based material in which alkyl groups bonded to a diester group have a weight average carbon number of greater than 7 and less than 9; and a monobenzoate-based material including one or more compounds represented by Chemical Formula 1, wherein a weight ratio of the terephthalate-based material and the monobenzoate-based material is 99:1 to 1:99. Such a plasticizer composition is environmentally friendly, and can also improve properties such as tensile strength, elongation rate, hardness, and the like and migration resistance to stress so as to be suitable for use.

A polymer includes: a structural unit represented by the following Formula (I-1) and a structural unit represented by the following Formula (I-2). In Formulae (I-1) and (I-2), X and X each independently represent a divalent group having 6 to 50 carbon atoms and containing an aromatic ring; Y represents a divalent group having 5 to 50 carbon atoms, the divalent group including an alicyclic ring and alkylene groups, and the alkylene groups each having 1 to 10 carbon atoms connecting carbon atoms included in carbonyl groups adjacent to Y with the alicyclic ring; Y represents a divalent group having 3 to 50 carbon atoms and containing an alicyclic ring directly bonded to carbon atoms included in carbonyl groups adjacent to Y; and m and n each represent an integer from 3 to 1,000.

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A polymer includes: a structural unit represented by the following Formula (I-1) and a structural unit represented by the following Formula (I-2). In Formulae (I-1) and (I-2), X and X each independently represent a divalent group having 6 to 50 carbon atoms and containing an aromatic ring; Y represents a divalent group having 5 to 50 carbon atoms, the divalent group including an alicyclic ring and alkylene groups, and the alkylene groups each having 1 to 10 carbon atoms connecting carbon atoms included in carbonyl groups adjacent to Y with the alicyclic ring; Y represents a divalent group having 3 to 50 carbon atoms and containing an alicyclic ring directly bonded to carbon atoms included in carbonyl groups adjacent to Y; and m and n each represent an integer from 3 to 1,000.

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The present invention is a dispersant composition for a hydraulic composition, which includes (A) a polymer compound having a naphthalene ring-containing monomer unit and (B) a specific alkylene oxide added compound represented by the general formulas (B1) to (B3), wherein a molar ratio of a total amount of the component (B) to the naphthalene ring-containing monomer unit in the component (A) is 0.4% or more and 30% or less.

The present invention is a dispersant composition for a hydraulic composition, which includes (A) a polymer compound having a naphthalene ring-containing monomer unit and (B) a specific alkylene oxide added compound represented by the general formulas (B1) to (B3), wherein a molar ratio of a total amount of the component (B) to the naphthalene ring-containing monomer unit in the component (A) is 0.4% or more and 30% or less.

The present invention is a dispersant composition for a hydraulic composition, which includes (A) a cement dispersant composed of a polymer having a naphthalene ring-containing monomer unit, and (B) one or more specific alkylene oxide-added compounds represented by the general formula (B1), wherein a molar ratio of a total amount of (B) to the naphthalene ring-containing monomer unit in (A) is 3% or more and 16% or less.

The present invention is a dispersant composition for a hydraulic composition, which includes (A) a cement dispersant composed of a polymer having a naphthalene ring-containing monomer unit, and (B) one or more specific alkylene oxide-added compounds represented by the general formula (B1), wherein a molar ratio of a total amount of (B) to the naphthalene ring-containing monomer unit in (A) is 3% or more and 16% or less.

Provided herein are compositions comprising covalent and supramolecular polymers, and methods of preparation and use thereof.

The invention illustrates a material for friction components of disc brakes comprising between 1% and 8% by weight of at least one preceramic resin and between 2% and 10% by weight of at least one organic resin. It also illustrates a friction component for a disc brake, a disc brake, and a process for producing such a material.