C08G59/56

TWO PART CURABLE COMPOSITIONS
20220325151 · 2022-10-13 ·

Two part curable compositions are provided which include a first part comprising a (meth)acrylate component and an amine and a second part comprising a fatty acid peroxide. Further disclosed are methods of preparing a two part adhesive composition using the two part curable compositions and methods of bonding surfaces using the two part curable compositions.

THERMOSETTING MATERIAL FOR USE IN ADDITIVE MANUFACTURING
20230158737 · 2023-05-25 ·

The present invention relates to a thermosetting material for use in additive manufacturing, the material comprising at least one thermosetting resin and at least two curing compounds different from said thermosetting resin that are able to cure this/these thermosetting resin(s), wherein at least one curing compound is provided for curing during the additive manufacturing process and at least one curing compound is provided for curing during a post-curing step. The invention furthermore relates to a method of producing a cured 3D thermoset object comprising at least the steps of subjecting the material according to the present invention to an additive manufacturing process, obtaining a partially cured 3D thermoset object and subsequently subjecting the partially cured 3D thermoset object to a post-curing process to further cure the 3D thermoset object Additionally, the invention relates to the use of the material in an SLS, FFF, CBAM, FGF or powder bed additive manufacturing process.

EPOXY RESIN COMPOSITION, GAS BARRIER FILM, AND LAMINATE

Provided is an epoxy resin composition including an epoxy resin, an epoxy resin curing agent containing an amine-based curing agent, and an acidic compound, wherein a ratio (basic nitrogen/acid groups) of a molar equivalent of basic nitrogen in the epoxy resin composition to a molar equivalent of acid groups derived from the acidic compound is from 0.10 to 3.0. Also provided are a gas barrier film and a laminate in which the epoxy resin composition is used.

BHM IN ADHESIVE COMPOSITIONS

An adhesive composition comprising a first part comprising an epoxy resin and a second part comprising a multifunctional amine package. The multifunctional amine package comprises bis(hexamethylene)triamine and a synergist. The amine concentration is at least 10% less than the epoxy resin concentration and the adhesive composition demonstrates a sag resistance of greater than 40 mm.

Resin composition for fiber-reinforced plastic, cured product of same, and fiber-reinforced plastic comprising said cured product

The present invention provides a resin composition for a fiber-reinforced plastic, the resin composition including a cyanate ester (A), an epoxy resin (B), and an aromatic amine-based curing agent that is liquid at 25° C. (C), wherein the average number of cyanate groups in the cyanate ester (A) is 2.1 or greater, and/or the average number of epoxy groups in the epoxy resin (B) is 2.1 or greater. A fiber-reinforced plastic that is produced using this composition and a reinforcing fiber has favorable heat resistance and excellent tensile and bending properties, and therefore can be applied to a wide variety of fields including transport vehicles such as ships, automobiles, and aircrafts, sporting goods, building materials such as sinks and window frames, as well as industrial machinery and materials such as high-pressure gas tanks and blades for wind power generation.

Resin composition for fiber-reinforced plastic, cured product of same, and fiber-reinforced plastic comprising said cured product

The present invention provides a resin composition for a fiber-reinforced plastic, the resin composition including a cyanate ester (A), an epoxy resin (B), and an aromatic amine-based curing agent that is liquid at 25° C. (C), wherein the average number of cyanate groups in the cyanate ester (A) is 2.1 or greater, and/or the average number of epoxy groups in the epoxy resin (B) is 2.1 or greater. A fiber-reinforced plastic that is produced using this composition and a reinforcing fiber has favorable heat resistance and excellent tensile and bending properties, and therefore can be applied to a wide variety of fields including transport vehicles such as ships, automobiles, and aircrafts, sporting goods, building materials such as sinks and window frames, as well as industrial machinery and materials such as high-pressure gas tanks and blades for wind power generation.

AQUEOUS COATING COMPOSITION CONTAINING AN EPOXY-AMINE SYSTEM AND AN AROMATIC CARBOXYLIC ACID AS CURING CATALYST

Disclosed herein is an aqueous coating composition containing an aqueous epoxy resin dispersion, an aqueous amine-functional resin dispersion and an aromatic carboxylic acid. The aqueous dispersion contains at least one specific di- and/or polyfunctional monomeric amine and at least one resin component including at least one specific polyfunctional organic amine. Further disclosed herein is a kit-of-parts including a base varnish containing the aqueous epoxy resin dispersion and a curing component containing the aqueous amine-functional resin dispersion as well as the aromatic carboxylic acid. Additionally disclosed herein is a process for producing a coating on the substrate as well as coated substrates resulting from said process. Cured coating layers formed from said compositions exhibit a good adhesion to the substrate as well as a high intercoat adhesion and blistering stability under humidity conditions without negatively influencing the excellent sandability and the good stone chipping properties.

AQUEOUS COATING COMPOSITION CONTAINING AN EPOXY-AMINE SYSTEM AND AN AROMATIC CARBOXYLIC ACID AS CURING CATALYST

Disclosed herein is an aqueous coating composition containing an aqueous epoxy resin dispersion, an aqueous amine-functional resin dispersion and an aromatic carboxylic acid. The aqueous dispersion contains at least one specific di- and/or polyfunctional monomeric amine and at least one resin component including at least one specific polyfunctional organic amine. Further disclosed herein is a kit-of-parts including a base varnish containing the aqueous epoxy resin dispersion and a curing component containing the aqueous amine-functional resin dispersion as well as the aromatic carboxylic acid. Additionally disclosed herein is a process for producing a coating on the substrate as well as coated substrates resulting from said process. Cured coating layers formed from said compositions exhibit a good adhesion to the substrate as well as a high intercoat adhesion and blistering stability under humidity conditions without negatively influencing the excellent sandability and the good stone chipping properties.

REINFORCED BUILDING BLOCK MADE OF AUTOCLAVED AERATED CONCRETE (AAC)

The present invention is directed to a reinforced building block made of autoclaved aerated concrete (AAC) comprising rebars formed essentially from A) at least one fibrous carrier and B) and a hardened composition formed from B1) at least one epoxy compound and B2) at least one diamine and/or polyamine in a stoichiometric ratio of the epoxy compound B1) to the diamine and/or polyamine component B2) of 0.8:1 to 2:1, as matrix material, and C) optionally further auxiliaries and additives and to methods of production thereof

Resin composition, copper clad laminate and printed circuit board using same

The present invention provides a resin composition comprising: (A) 100 parts by weight of epoxy resin; (B) from 10 to 80 parts by weight of benzoxazine resin; (C) from 10 to 50 parts by weight of dicyclopentadiene phenol resin; and (D) from 0.5 to 5 parts by weight of amine hardener; wherein the resin composition is free of diallyl bisphenol A (DABPA).