摘要:
Acrylated silicone polymers are prepared by reacting limoneneoxide-functional silicones with acrylic acid or a substituted acrylic acid in the presence of a catalyst selected from tetraalkylurea (e.g. tetramethylurea), tetraalkylguanidine (e.g. tetramethylguanide) or mixtures thereof. Adhesion of the resulting ultraviolet light curable compositions to various substrates, especially super calendared kraft papers, can be improved with the addition of N-vinylpyrrolidinone.
摘要:
An aqueous, oxidatively drying coating composition is provided, the binder system of which comprising (A) the polymer obtained by polymerization of a monoethylenically unsaturated compound in the presence of (B) an aqueous solution of an ionized, oxidatively drying alkyl resin, and (C) a dispersed, oxidatively drying alkyd resin having a number average molecular weight of 600-6000, a viscosity of at most 30 Pa.s, measured at 20.degree. C., an acid number of 0-20 and a hydroxyl number of 0-130, and built up of 3-40% by weight of a hydroxyl compound, 2-44% by weight of a carboxylic acid including a cycloaliphatic dicarboxylic acid, and 20-90% by weight of an ethylenically unsaturated fatty acid. Calculated on solid matter, component C forms 5-65% by weight of the binder system. The coating composition is preferably applied to wood.
摘要:
A paint that provides a textured surface when polymerized on a substrate by ionizing radiation which, exclusive of pigments and particulate mineral filler, consists essentially of a solution of a volatile, inert, organic solvent and a mixture including: (1) an alpha-beta olefinically unsaturated organic resin containing between about 0.5 and about 5 units of unsaturation per 1000 units of molecular weight; and (2) vinyl monomers in which the unsaturated organic resin has limited solubility, i.e., between about 1 and about 15 weight percent based on the weight of the monomer and which will copolymerize with the unsaturated organic resin upon exposure to ionizing radiation. The unsaturated organic resin and monomer are dissolved in the volatile, inert, organic solvent which is a mutual solvent for both the monomer and the prepolymer and applied to a substrate. After evaporation of the inert solvent, the coating is irradiated and polymerizes to form a textured coating.
摘要:
Polymer composite photonic crystal materials are disclosed as coatings and topcoats which have high reflection (>30%) in a specific range of the electromagnetic spectrum, such as ultraviolet (
摘要:
Disclosed is a method of coating an object made of a first material and a second material that is different from the first material. The method includes dispensing a polymer solution onto the object, wherein the polymer solution has a property that wets one of the first material and the second material and dewets the other one of the first material and the second material.
摘要:
Provided herein are the polymers shown below. The value n is a positive integer. R1 is an organic group, and each R2 is H or a chemisorbed group, with at least one R2 being a chemisorbed group. The polymer may be a nanostructured film. Also provided herein is a method of: converting a di-p-xylylene paracyclophane dimer to a reactive vapor of monomers; depositing the reactive vapor onto a substrate held at an angle relative to the vapor flux to form nanostructured poly(p-xylylene) film; reacting the film with an agent to form hydrogen atoms that are reactive with a precursor of a chemisorbed group, if the film does not contain the hydrogen atoms; and reacting the hydrogen atoms with the precursor. Also provided herein is a device having a nanostructured poly(p-xylylene) film on a pivotable substrate. The film has directional hydrophobic or oleophobic properties and directional adhesive properties.
摘要:
Provided herein are the polymers shown below. The value n is a positive integer. R1 is an organic group, and each R2 is H or a chemisorbed group, with at least one R2 being a chemisorbed group. The polymer may be a nanostructured film. Also provided herein is a method of: converting a di-p-xylylene paracyclophane dimer to a reactive vapor of monomers; depositing the reactive vapor onto a substrate held at an angle relative to the vapor flux to form nanostructured poly(p-xylylene) film; reacting the film with an agent to form hydrogen atoms that are reactive with a precursor of a chemisorbed group, if the film does not contain the hydrogen atoms; and reacting the hydrogen atoms with the precursor. Also provided herein is a device having a nanostructured polyp-xylylene) film on a pivotable substrate. The film has directional hydrophobic or oleophobic properties and directional adhesive properties.
摘要:
The present invention provides inorganic pigments including cobalt and aluminum having the spinel crystalline structure that exhibit improved color and/or weatherability in paint and polymer applications. Inorganic pigments according to the invention are formed by adding small quantities of a phosphate compound such as aluminum phosphate and, optionally, chromium (III) oxide, to a raw batch that includes a mixture of cobalt-containing and aluminum-containing inorganic pigment precursors, and calcining the raw batch to obtain the inorganic pigment.
摘要:
The invention relates to compounds with the general formula Y.sup.1 --A.sup.1 --M.sup.1 --A.sup.2 --Y.sup.2 whereinY.sup.1 and Y.sup.2 are different from each other and Y.sup.1 is an acrylate or methacrylate residue and Y.sup.2 is a vinyl ether, epoxy, or azide residue,A.sup.1 and A.sup.2 are identical or different residues with the general formula C.sub.n H.sub.2n in which n is a whole number from 0 to 20 and one or more methylene groups can be replaced by oxygen atoms, andM.sup.1 has the general formula --R.sup.1 --X.sup.1 --R.sup.2 --X.sup.2 --R.sup.3 --X.sup.3 --R.sup.4 -- whereinR.sup.1, R.sup.2, R.sup.3, and R.sup.4 are identical or different doubly bonded residues from the group --O--, --COO--, --CONH--, --CO--, --S--, --C.tbd.C--, --CH.dbd.CH--, --CH.dbd.N--, --CH.sub.2 --, --N.dbd.N--, and --N.dbd.N(O)--, and R.sup.2 --X.sup.2 --R.sup.3 can also be a C--C bond, andX.sup.1, X.sup.2, and X.sup.3 are identical or different residues from the group 1,4-phenylene, 1,4-cyclohexylene; arylalkane or heteroarylalkane with 1 to 10 carbon atoms which contains one to three heteroatoms from the group O, N, and S, substituted with B.sup.1, B.sup.2, and/or B.sup.3 ; and cycloalkylene with 1 to 10 carbon atoms and substituted with B.sup.1, B.sup.2, and/or B.sup.3, wherein B.sup.1, B.sup.2, and B.sup.3 can be identical or different substituents from the group --H, C.sub.1 -C.sub.20 -alkyl, C.sub.1 -C.sub.20 -alkoxy, C.sub.1 -C.sub.20 -alkylthio, C.sub.1 -C.sub.20 -alkylcarbonyl, C.sub.1 -C.sub.20 -alkoxycarbonyl, C.sub.1 -C.sub.20 -alkylthiocarbonyl, --OH, halogen (fluorine, chlorine, bromine, iodine), --CN, --NO.sub.2, cycloalkyl, formyl, acetyl, and alkyl, alkoxy, or alkylthio residues with 1-20 carbon atoms interrupted by ether oxygen, thioether sulfur, or ester groups.
摘要:
In one aspect, the present invention provides a water-soluble and shelf-stable aqueous fluorochemical polymeric treatment useful to treat porous substrates to render them repellent to water- and oil-based stains. The treatment comprises a water-soluble fluorochemical polymer containing only carbon atoms in the backbone, with a plurality of each of the following groups pendent from the backbone: (a) fluoroaliphatic groups, (b) carboxyl-containing groups, (c) oxyalkylene or polyoxyalkylene groups, and, optionally, (d) silyl groups.