The invention relates to an aqueous resin dispersion D comprising a mixture of a hydrophilically modified epoxy-based resin P and a resole R, and a co-crosslinker E, to a process for the preparation of the aqueous resin dispersion D, and to a method of use thereof to prepare coating films to prevent corrosion of the coated substrate.

A nail sticker, a composition for the nail sticker and a method for preparing the composition are disclosed. Raw materials of the composition include a sizing material, which is made of the following raw materials in parts by weight: 45-85 parts of a UV thermosetting resin, 2-9 parts of a photoinitiator, 1.5-2 parts of a curing agent, 0.1-1 part of a thermal promoter, and 0.1-1 part of a leveling agent. The synchronization of the release of essential oil molecules with light/thermal curing promotes the essential oil molecules to be diffused to the interior of the sizing material more uniformly in a wider range, and during the curing and film forming of the nail sticker, an aroma spreads as tantalizing as that of baked food.

A nail sticker, a composition for the nail sticker and a method for preparing the composition are disclosed. Raw materials of the composition include a sizing material, which is made of the following raw materials in parts by weight: 45-85 parts of a UV thermosetting resin, 2-9 parts of a photoinitiator, 1.5-2 parts of a curing agent, 0.1-1 part of a thermal promoter, and 0.1-1 part of a leveling agent. The synchronization of the release of essential oil molecules with light/thermal curing promotes the essential oil molecules to be diffused to the interior of the sizing material more uniformly in a wider range, and during the curing and film forming of the nail sticker, an aroma spreads as tantalizing as that of baked food.

A protective film forming composition which has a good mask (protection) function against a wet etching liquid and a high dry etching rate during processing of a semiconductor substrate and also has good coverage even for a stepped substrate, and from which a flat film can be formed due to a small difference in film thickness after being embedded; a protective film produced using the composition; a substrate with a resist pattern; and a method for producing a semiconductor device. This composition contains: (A) a compound having three or more carboxyl groups; (B) a resin or a monomer; and a solvent. The compound (A) having three or more carboxyl groups preferably has a ring structure. This ring structure is preferably selected from among an aromatic ring having 6-40 carbon atoms, an aliphatic ring having 3-10 carbon atoms, and a heterocyclic ring.

A protective film forming composition which has a good mask (protection) function against a wet etching liquid and a high dry etching rate during processing of a semiconductor substrate and also has good coverage even for a stepped substrate, and from which a flat film can be formed due to a small difference in film thickness after being embedded; a protective film produced using the composition; a substrate with a resist pattern; and a method for producing a semiconductor device. This composition contains: (A) a compound having three or more carboxyl groups; (B) a resin or a monomer; and a solvent. The compound (A) having three or more carboxyl groups preferably has a ring structure. This ring structure is preferably selected from among an aromatic ring having 6-40 carbon atoms, an aliphatic ring having 3-10 carbon atoms, and a heterocyclic ring.

Phenalkamine epoxy curing agent for outdoor top coat application A novel Mannich reaction based phenalkamine for outdoor application which includes a) para substituted phenol reaction product with polyamine and aldehyde, b) adduct with epoxy resin containing two glycidyl groups. Phenalkamine produced is diluted with an inert solvent. The top coat shows good ultra violet radiation stability, low colour, colour and gloss retention, low viscosity with excellent corrosion resistance. The two-pack epoxy resin paint composition based on Phenalkamine curing agent for outdoor application has very good adhesion as undercoat and very good over coating performance as top coat.

Phenalkamine epoxy curing agent for outdoor top coat application A novel Mannich reaction based phenalkamine for outdoor application which includes a) para substituted phenol reaction product with polyamine and aldehyde, b) adduct with epoxy resin containing two glycidyl groups. Phenalkamine produced is diluted with an inert solvent. The top coat shows good ultra violet radiation stability, low colour, colour and gloss retention, low viscosity with excellent corrosion resistance. The two-pack epoxy resin paint composition based on Phenalkamine curing agent for outdoor application has very good adhesion as undercoat and very good over coating performance as top coat.

Phenalkamine epoxy curing agent for outdoor top coat application A novel Mannich reaction based phenalkamine for outdoor application which includes a) para substituted phenol reaction product with polyamine and aldehyde, b) adduct with epoxy resin containing two glycidyl groups. Phenalkamine produced is diluted with an inert solvent. The top coat shows good ultra violet radiation stability, low colour, colour and gloss retention, low viscosity with excellent corrosion resistance. The two-pack epoxy resin paint composition based on Phenalkamine curing agent for outdoor application has very good adhesion as undercoat and very good over coating performance as top coat.

The present disclosure provides for a coating composition system suitable for forming a stain resistant and soft tactile texture coating onto a variety of substrate materials including plastic materials, metal materials, ceramic materials, and concrete materials. The coating composition system can be cured under mild curing conditions, and provides the resulting coating with excellent properties in terms of adhesion to the substrates, strength, and abrasion resistance. The present disclosure also provides for a method for preparing the coating composition system, and the use thereof.

A saltwater corrosion resistant composite coating is described. The coating includes at least one conductive polymer, chitosan, reduced graphene oxide (rGO), and a cured epoxy. The rGO and chitosan are dispersed in particles of the conductive polymer to form a 3D network. At least a portion of the chitosan is covalently bound to the rGO. At least a portion of the conductive polymer is covalently bound to the chitosan, and the 3D network is dispersed in the cured epoxy.