C08K5/3437

Dispersion, ink composition for ink jet recording, and ink jet recording method
11725113 · 2023-08-15 · ·

A dispersion contains: a water-insoluble colorant; and acrylic resin particles, where: the acrylic resin particles contain, as a monomer unit, 20 mol % or more of an acrylic blocked isocyanate group based on a total amount of the acrylic resin particles; and the acrylic resin particles have a weight-average molecular weight of 1,000 or more and 1,000,000 or less.

Modified conjugated diene-based polymer and method for preparing the same

The present invention relates to a modifier represented by Formula 1, a method for preparing the same, a modified conjugated diene-based polymer including a functional group derived from the modifier and having a high modification ratio, and a method for preparing the polymer.

Modified conjugated diene-based polymer and method for preparing the same

The present invention relates to a modifier represented by Formula 1, a method for preparing the same, a modified conjugated diene-based polymer including a functional group derived from the modifier and having a high modification ratio, and a method for preparing the polymer.

Rubber composition having improved properties in the raw state and in the cooked state

A rubber composition is based on at least an elastomeric matrix comprising at most 70 parts by weight, per hundred parts by weight of elastomer, phr, of a polyisoprene and at least 30 phr of a butadiene/styrene copolymer, the butadiene/styrene copolymer exhibiting a content of styrene units of between 20% and 40% by weight, with respect to the total weight of the butadiene/styrene copolymer, a content of trans-1,4-butadiene unit of greater than 65% by weight, with respect to the total weight of the butadiene units, a content of vinyl unit of less than 8% by weight, with respect to the total weight of the butadiene units, and a glass transition temperature of between −60° C. and −35° C.; from 35 to 75 phr of a carbon black exhibiting a BET specific surface of between 90 and 100 m.sup.2/g and a COAN absorption index of between 90 and 100 ml/100 g; and a crosslinking system.

Rubber composition having improved properties in the raw state and in the cooked state

A rubber composition is based on at least an elastomeric matrix comprising at most 70 parts by weight, per hundred parts by weight of elastomer, phr, of a polyisoprene and at least 30 phr of a butadiene/styrene copolymer, the butadiene/styrene copolymer exhibiting a content of styrene units of between 20% and 40% by weight, with respect to the total weight of the butadiene/styrene copolymer, a content of trans-1,4-butadiene unit of greater than 65% by weight, with respect to the total weight of the butadiene units, a content of vinyl unit of less than 8% by weight, with respect to the total weight of the butadiene units, and a glass transition temperature of between −60° C. and −35° C.; from 35 to 75 phr of a carbon black exhibiting a BET specific surface of between 90 and 100 m.sup.2/g and a COAN absorption index of between 90 and 100 ml/100 g; and a crosslinking system.

Photopolymerizable compositions including a polyurethane methacrylate polymer prepared using a polycarbonate diol, articles, and methods

The present disclosure provides a photopolymerizable composition. The photopolymerizable composition includes a) 40-60 parts by weight of a monofunctional (meth)acrylate monomer, per 100 parts of the total photopolymerizable composition; b) a photoinitiator; and c) a polymerization reaction product of components. A cured homopolymer of the monofunctional (meth)acrylate monomer has a glass transition temperature of 125 degrees Celsius or greater. The polymerization reaction product of components includes i) a diisocyanate; ii) a hydroxy functional methacrylate; iii) a polycarbonate diol; and iv) a catalyst. The polymerization reaction product includes a polyurethane methacrylate polymer. Often, the polycarbonate diol has a number average molecular weight of greater than 1,000 grams per mole (g/mol) or a weighted average of all polycarbonate diols present in the components has a Mn of greater than 1,000 g/mol; alternatively, the polyurethane methacrylate polymer has a weight average molecular weight of 8,000 g/mol or greater. An article is also provided including the photopolymerizable composition reaction product. Further, the present disclosure provides articles and methods of making articles. Methods are additionally provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an article; and generating, with the manufacturing device by an additive manufacturing process, the article based on the digital object. A system is also provided, including a display that displays a 3D model of an article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an article.

Photopolymerizable compositions including a polyurethane methacrylate polymer prepared using a polycarbonate diol, articles, and methods

The present disclosure provides a photopolymerizable composition. The photopolymerizable composition includes a) 40-60 parts by weight of a monofunctional (meth)acrylate monomer, per 100 parts of the total photopolymerizable composition; b) a photoinitiator; and c) a polymerization reaction product of components. A cured homopolymer of the monofunctional (meth)acrylate monomer has a glass transition temperature of 125 degrees Celsius or greater. The polymerization reaction product of components includes i) a diisocyanate; ii) a hydroxy functional methacrylate; iii) a polycarbonate diol; and iv) a catalyst. The polymerization reaction product includes a polyurethane methacrylate polymer. Often, the polycarbonate diol has a number average molecular weight of greater than 1,000 grams per mole (g/mol) or a weighted average of all polycarbonate diols present in the components has a Mn of greater than 1,000 g/mol; alternatively, the polyurethane methacrylate polymer has a weight average molecular weight of 8,000 g/mol or greater. An article is also provided including the photopolymerizable composition reaction product. Further, the present disclosure provides articles and methods of making articles. Methods are additionally provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an article; and generating, with the manufacturing device by an additive manufacturing process, the article based on the digital object. A system is also provided, including a display that displays a 3D model of an article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an article.

ORTHODONTIC ARTICLES PREPARED USING A POLYCARBONATE DIOL, AND METHODS OF MAKING SAME

The present disclosure provides an orthodontic article including the reaction product of the photopolymerizable composition. The photopolymerizable composition includes i) a monofunctional (meth)acrylate monomer whose cured homopolymer has a glass transition temperature of 90 degrees Celsius or greater; ii) a photoinitiator; and iii) a polymerization reaction product of components. The components include 1) an isocyanate; 2) a (meth)acrylate mono-ol; 3) a polycarbonate diol; and 4) a catalyst. Further, the present disclosure provides a method of making an orthodontic article. The method includes obtaining a photopolymerizable composition and selectively curing the photopolymerizable composition to form an orthodontic article. Further, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an orthodontic article; and generating, with the manufacturing device by an additive manufacturing process, the orthodontic article based on the digital object. A system is also provided, including a display that displays a 3D model of an orthodontic article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an orthodontic article.

ORTHODONTIC ARTICLES PREPARED USING A POLYCARBONATE DIOL, AND METHODS OF MAKING SAME

The present disclosure provides an orthodontic article including the reaction product of the photopolymerizable composition. The photopolymerizable composition includes i) a monofunctional (meth)acrylate monomer whose cured homopolymer has a glass transition temperature of 90 degrees Celsius or greater; ii) a photoinitiator; and iii) a polymerization reaction product of components. The components include 1) an isocyanate; 2) a (meth)acrylate mono-ol; 3) a polycarbonate diol; and 4) a catalyst. Further, the present disclosure provides a method of making an orthodontic article. The method includes obtaining a photopolymerizable composition and selectively curing the photopolymerizable composition to form an orthodontic article. Further, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an orthodontic article; and generating, with the manufacturing device by an additive manufacturing process, the orthodontic article based on the digital object. A system is also provided, including a display that displays a 3D model of an orthodontic article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an orthodontic article.

Carbon Black for Improved Automotive Anti-Vibration Rubber Compound Performance
20220002556 · 2022-01-06 ·

Carbon black for use in anti-vibration compounds and components, anti-vibration bushings and engine mounts, together with such anti-vibration compounds and components and methods for the manufacture and use thereof.