摘要:
A composite material comprising a metallic substrate and a coating on at least one side of the metallic substrate, wherein the coating comprises an acrylic or styrene-acrylic based polymer and is less than about 0.2 mils thick, wherein the polymer has a molecular weight of 50,000 to 1,000,000, a glass transition temperature (Tg) of 50-80° C., and comprises 90-100 wt. % of the total solids in the coating.The method of applying a coating to a metal substrate using a manifold flood and squeegee roll configuration or alternatively roll coater techniques; wherein the roll hardness, shape, pressure and speed are chosen to ensure that the coating composition forms a continuous wet film on the metallic substrate surfaces when the strip travels at up to 600 feet per minute; and the wet film has a uniform thickness of 2 mil (0.002 inch) or less.
摘要:
The present invention relates to non aqueous, graftable coating composition comprised of a homogenous solution of a polymer and a spin casting organic solvent, where the composition does not contain acidic compounds, coloring particles, pigments or dyes, and the polymer has a linear polymer chain structure which is comprised of repeat units derived from monomers containing a single polymerizable olefinic carbon double bond, and the polymer contains at least one triarylmethyl chalcogenide containing moiety which is selected from the group consisting of repeat units having structure (I) an end chain group unit of structure (II) and mixtures thereof, and the polymer does not contain any repeat units or end groups containing water ionizable groups, ionic groups, free thiol groups, or free hydroxy groups, and where A1, A2, and A3 are independently an Aryl or a substituted Aryl; Y is a chalcogen selected from O, S, Se or Te; X1 and X2 are individually selected organic spacers; P1 is an organic polymer repeat unit moiety derived from a monomer containing a single polymerizable olefinic carbon double bound, and P2 is an end group moiety derived from a monomer containing a single polymerizable olefinic carbon double bound, and represents a direct valence bond to the linear polymer. The invention also relates to using this novel coating composition to form a grafted polymer film on a substrate.
摘要:
Coating compositions and methods for their preparation are described. The coating compositions can include a first copolymer produced by emulsion polymerization and derived from one or more monomers including one or more (meth)acrylates, one or more acid monomers, and optionally styrene. The first copolymer can have a Tg from −50° C. to −23° C. and is present in an amount of 10-50% by weight based on the total polymer content. The coating compositions can also include a second copolymer produced by emulsion polymerization and derived from one or more monomers including one or more (meth)acrylates, one or more acid monomers, and optionally styrene. The second copolymer can have a Tg from −15° C. to 25° C. and is present in an amount of 50-90% by weight based on the total polymer content. Further described herein are dried coatings, methods for coating a substrate, and methods for producing a coating.
摘要:
A part material for printing three-dimensional parts with an electrophotography-based additive manufacturing system, the part material including a composition having a grafted copolymer (including acrylonitrile units, butadiene units, aromatic units modified withpolycarbonate and poly(styrene-co-maleimide)), a charge control agent, and a heat absorber. The part material is provided in a powder form having a controlled particle size, and is configured for use in the electrophotography-based additive manufacturing system having a layer transfusion assembly for printing the three-dimensional parts in a layer-by-layer manner.
摘要:
Methods for applying a liner-free, or liner-less label, to a substrate, particularly glass or plastic (e.g., polyethylene terephthalate) substrates, are described herein. The method includes applying an adhesive composition, such as a polymeric coating, to a label face sheet, activating the adhesive composition with an activating fluid, and contacting the label to the substrate. The activating fluid is preferably a mixture of water and one or more organic solvents, such as low molecular weight alcohols.
摘要:
An aqueous binder composition, useful for making fiber products, especially fiberglass insulation, comprising an aqueous substantially alkaline (pH of at least 5.0) solution of a polyol and a hydrolyzed (solubilized) copolymer of maleic anhydride and a vinyl aromatic compound, preferably styrene (i.e., a SMA copolymer); the copolymer is solubilized using ammonia, an ammine, a primary alkanolamines (preferably monoethanolamine), a secondary alkanolamine (preferably diethanolamine (DEA)), a tertiary alkanolamine (preferably triethanolamine (TEA)), or a mixture thereof and the binder composition is cured as a consequence of cross-linking, esterification reactions between pendant carboxyls on the solubilized (hydrolyzed) copolymer (SMA) chains and hydroxyl groups of the polyol, including the diethanolamine and/or triethanolamine preferably used in the solubilization of the SMA.
摘要:
Techniques and compositions for applying films to a variety of substrates, from water-borne coating compositions, are provided. The techniques involve providing desiccant and applying the desiccant with water-borne film-forming composition, in application to a substrate. The desiccant composition provides for take up of free water in of the film-forming composition, without total reliance on ambient conditions, to advantage. Compositions, methods, techniques and resulting constructions are described. The techniques can be applied in wet thick film applications, but are not limited to such applications.
摘要:
Styrene-acrylic dispersants for use in pigment dispersions have lower viscosities than benchmark formulations such as nitrocellulose, dimer-acid based polyamides, and thermoplastic polyurethanes, prepared under otherwise identical conditions. Lower viscosities allow for the preparation of similarly viscous dispersions and inks with the styrene-acrylics when compared to traditional dispersants, at either (a) lower solvent levels, or if solvent levels are to be maintained, (b) higher pigment and solids loadings.
摘要:
A photocurable resin composition comprises a cationic polymerizable compound (A), an acrylic resin (B) and a cationic photopolymerization initiator (C), in which the acrylic resin (B) has a cationic polymerizable functional group, and the content of the component (A) is 30 to 95 parts by mass and the content of the component (B) is 5 to 70 parts by mass, based on 100 parts by mass of the total amount of the components (A) and (B). In addition, the functional group of the acrylic resin (B) preferably contains at least one of a cyclic ether group, a vinyloxy group, an acid adduct of a vinyloxy group, and an active hydrogen group, with the active hydrogen group preferably being a hydroxyl group. The photocurable resin composition has sufficient curability and sufficient adhesiveness to rigid plastics such as polycarbonate and PET having poor adhesive property.
摘要:
Process for preparing copolymers from esters of an unsaturated carboxylic acid with at least one other unsaturated monomer, characterized in that the following components are copolymerized in radical substance polymerization:(A) 5 to 60 parts by weight of at least one diester of an .alpha.,.beta.-olefinically unsaturated dicarboxylic acid having 1 to 8 carbon atoms in the ester group,(B) 10 to 70 parts by weight of at least one vinyl aromatic hydrocarbon having one vinyl group,(C) 0 to 30 parts by weight of at least one glycidyl ester of an aliphatic saturated monocarboxylic acid branched in the .alpha.-position,(D) 0 to 50 parts by weight of at least one ester, amide and/or anhydride of an .alpha.,.beta.-olefinically unsaturated mono- and/or dicarboxylic acid,(E) 0 to 40 parts by weight of at least one .alpha.,.beta.-olefinically unsaturated monocarboxylic acid,the sum of components (A) to (E) being 100 parts by weight, whilst at least a part of component (A) is at first introduced into the reaction vessel alone or in combination with at least a part of component (C) and a mixture of component (B) with at least one of components (D) and (E) and any remaining parts of components (A) and/or (C) is added in batches at 140.degree. to 200.degree. C. together with a radical initiator, alone or in conjunction with a regulator, and if component (C) is present, at least an equimolar quantity of component (E) is used; and the use of the products thus obtained as binders for the preparation of coating compositions.