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3414 results about "Alkyd" patented technology

An alkyd is a polyester modified by the addition of fatty acids and other components. They are derived from polyols and a dicarboxylic acid or carboxylic acid anhydride. The term alkyd is a modification of the original name "alcid", reflecting the fact that they are derived from alcohol and organic acids. The inclusion of the fatty acid confers a tendency to form flexible coating. Alkyds are used in paints and in moulds for casting. They are the dominant resin or "binder" in most commercial "oil-based" coatings. Approximately 200,000 tons of alkyd resins are produced each year. The original alkyds were compounds of glycerol and phthalic acid sold under the name Glyptal. These were sold as substitutes for the darker-colored Copal resins, thus creating alkyd varnishes which were much paler in colour. From these, the alkyds we know today were developed.

Transparent super-hydrophobicity wood coating and preparation method thereof

The invention discloses a transparent super-hydrophobicity wood coating which comprises the following components in parts by weight: 20-50 parts of water dispersive polyurethane resin or water dispersive alkyd resin, 4.5-25 parts of nano silica sol, 3-16 parts of nano cellulose gel, 0.1-1 part of octadecyl trichlorosilane or tetrahydroperfluorodecyltrichlorosilane or stearic acid and 0-45 parts of nano talc powder or nano calcium carbonate. A preparation method of the transparent super-hydrophobicity wood coating comprises the following steps: adding matrix resin and filler into a stirring kettle, and stirring uniformly to obtain slurry; grinding the slurry with a sand mill; adding a low-surface energy substance and supported nano silica sol; performing ultrasonic sufficient mixing for 30 minutes to obtain the transparent super-hydrophobicity coating. The transparent super-hydrophobicity wood coating disclosed by the invention has the advantages of low cost, controllable process, adjustable size and good applicability and is suitable for a preparation method of large-area preparation of transparent super-hydrophobicity surface; the prepared super-hydrophobicity film has good self-cleaning property, antifouling property, hydrophobic property, oleophobic property and the like.
Owner:GUANGDONG YIHUA TIMBER IND +1

Preparation method of scratch-resistant polyurethane matt black finish for woodware

The invention relates to a preparation method of a scratch-resistant polyurethane matt black finish for woodware. The scratch-resistant polyurethane matt black finish comprises a resin paint component A and a curing agent component B in the weight ratio of 1: 0.5, wherein the resin paint component A comprises alkyd resin, extinction powder, a dispersing agent, carbon black paste, a modifying flatting agent, an antifoaming agent, an anti-settling agent and a solvent; and the curing agent component B comprises a TDI-HDI (Toluene Diisocynate-Hexamethylene Diisocyanate) mixed tripolymer or a TDI/TMP (Trimethylolpropane) affixture, an HDI tripolymer and a solvent. The scratch-resistant double-component polyurethane matt black finish for woodware, prepared by the preparation method provided by the invention, brings no precipitate during being stored, is high in solidity, low in viscosity and excellent in leveling property; and the filming can be realized at one time, and the film is thick, free from sagging, and soft, full, fine, smooth, slippery in hand feel, shows alternate kindness with severity, is given the effect of full decoration like a mirror plane, brings a graceful and comfortable feel, and is adapted to modern aesthetic view and widely popular with the market and customers. The scratch-resistant polyurethane matt black finish is widely applied to protective decoration of surfaces of products such as the woodware, metals and plastics.
Owner:UNION FOSHAN CHEM +1

Acrylic-modified alcohol acid-epoxy ester hybrid resin and paint thereof

The invention relates to an acrylic-modified alcohol acid-epoxy ester hybrid resin which is prepared by the following steps: carrying out high-temperature esterification reaction on an epoxy resin and fatty acid under the action of an esterification catalyst to obtain epoxy ester; carrying out alcoholysis on vegetable oil and polyalcohol at high temperature, cooling, and adding polybasic acid for esterification, thereby obtaining an alkyd resin; and adding acrylic monomers into the epoxy ester-alkyd resin mixed solution, and carrying out graft polymerization under the action of an initiator to obtain the hybrid resin. The hybrid resin can be used as a main film forming material to prepare a high-temperature baking varnish together with a crosslinking agent. The high-temperature baking varnish can be used as various curtain-coating mirror back paints, including silver mirror back paints, aluminum mirror back paints, glass paints and the like, can satisfy the technological requirements for application of curtain coating production lines of which the width exceeds 3m, has a stable curtain coating, and can become completely dry after being baked at 150-130 DEG C for 3-5 minutes. The product has the advantages of low-temperature quick drying, high hardness, excellent adhesive force, dampness-heat resistance, chemical resistance, salt-fog resistance and the like.
Owner:常州市弘可利办公用品有限公司 +1

Quick-dry type acrylic modified alkyd paint and preparation method thereof

The invention relates to quick-dry type acrylic modified alkyd paint which is characterized by comprising the following components in parts by weight: 35-65 parts of acrylic modified alkyd resin, 15-25 parts of pigment, 10-25 parts of filling, 0.5-2.0 parts of anti-settling agent, 0.3-1.0 part of dispersant, 0.3-0.6 part of flatting agent, 0.3-0.6 part of antifoaming agent, 2-5 parts of drier, 0.1-0.3 part of anti skinning agent, 10-20 parts of heavy aromatic, 10-20 parts of xylene and 5-15 parts of prime city naphtha. The preparation method comprises the following steps of: adding the front four raw materials of the acrylic modified alkyd resin, and the like into a burdening pot; evenly stirring a mixture, dispersing the mixture for 20 minutes at high speed; grinding the mixture in a sand grinder into fineness of 30micron; filling pigment paste into a paint mixing tank; adding the last seven raw materials; evenly stirring; and filtering. The invention has the beneficial effects that various colors of acrylic modified alkyd paint is prepared by using the acrylic modified alkyd resin as a base material; and a paint film is quickly dried, and has the characteristics of good light retention property, weather resistance and recoatability, high decoration performance, and greatly improved comprehensive physical and chemical properties.
Owner:天津灯塔涂料工业发展有限公司
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