Patent classifications
C09D7/68
Hydrophilic aqueous dispersion containing silicon dioxide and silanol, and paint preparation
An aqueous dispersion can contain a) 50-80 wt.-% water, b) 10-30 wt.-% hydrophilic silicon dioxide with a methanol wettability of 0 vol.-% methanol in a methanol-water mixture, c) 2-25 wt.-% alcohol alkoxylate, d) 0.1-20 wt.-% silanol, obtained by the hydrolysis of at least one dialkoxysilane, e) 0.5-4 wt.-%, amine or an amine alcohol, f) 0.1-20 wt.-%, copolymer with side chains containing ethers and esters, and g) 0.1-6.0 wt.-% polyethylene glycol or polypropylene glycol.
ANTIFOULING LAYER-PROVIDED TRANSPARENT SUBSTRATE
To provide an antifouling layer-provided transparent substrate, which is excellent in antiglare and antifouling properties, especially in removability of a creamy product such as hand cream. An antifouling layer-provided transparent substrate, containing a transparent substrate and an antifouling layer provided as the top surface layer on one main surface of the transparent substrate, where the antifouling layer has a divalent group represented by —(OCF.sub.2).sub.v(OCF.sub.2CF.sub.2).sub.w— (where v and w are each independently an integer of at least 1), and the surface of the antifouling layer is such that the mean width RSm of the elements and the arithmetical mean roughness Ra satisfy RSm≥Ra×100+5.
SILICONE RESIN-COATED SILICONE ELASTOMER PARTICLES, AND APPLICATIONS THEREOF INCLUDING ORGANIC RESIN ADDITIVES
Provided is a silicone resin coated silicone elastomer particle which can be easily produced on an industrial scale, has superior dispersibility and oil absorptivity in a curable organic resin such as an epoxy resin, and has superior workability due to low secondary aggregation compared to conventional silicone elastomer particles. Also provided are applications containing the particles such as organic resin additives, organic resins, coating compositions or coating agent compositions, and cosmetic compositions. The silicone resin coated silicone elastomer particles have part or all of their surface coated with a silicone resin made up of two types of siloxane units. The siloxane units are selected from D units represented by R.sub.2SiO.sub.2/2, T units represented by RSiO.sub.3/2, and Q units represented by SiO.sub.4/2. The particles also have a structure in which at least two silicon atoms in the particles are cross-linked by a silalkylene group with 2 to 20 carbon atoms.
ABRASION-RESISTANT THERMOFORMABLE COATING AND PREPARATION OF SAME
Coating compositions including a nanoparticle layer including nanoparticles and a curable resin and a curable resin layer comprising the curable resin, where the nanoparticle layer has a thickness of 0.2 μm to 8 μm, and where the nanoparticle layer includes less than 40 vol. % of the curable resin. Methods for preparing the coating compositions, laminates including the coating compositions, and articles including the laminates are provided.
WATER-BASED SURFACE TREATMENT AGENT
A water-based surface treatment agent is provided. The water-based surface treatment agent is suitable to be coated onto a surface of a synthetic leather. The water-based surface treatment agent at least includes waterborne polyurethane, silicone powder, and water. Based on 100 parts by weight of the water-based surface treatment agent, a content of the waterborne polyurethane is within 15 to 35 parts by weight, and a content of the silicone powder is within 3 to 20 parts by weight. A non-volatile matter content of the waterborne polyurethane is within a range from 20 wt % to 30 wt %. Each grain of the silicone powder has a particle size within a range from 0.2 μm to 15 μm, a specific gravity within a range from 0.9 to 1.5, a water content within a range from 0.1% to 0.5%, and a hardness (A) within a range from 30 to 90.
Cell rupture-based antimicrobial surfaces coated with metal oxide nano-arrays
The present disclosure relates to an antimicrobial coating on a surface, a method for preparing and uses of the same. In particular it relates to a process for preparing an antimicrobial coating on a surface, the process comprising the steps of: a) providing a surface; b) coating a metal oxide or a metal hydroxide on the surface in the presence of a solvent in a hydrothermal synthesis step to form a coated surface having a plurality of nanostructures; c) optionally drying the coated surface, wherein said nanostructure is preferably in nanopillar structure. The coating of the present application exhibits excellent antimicrobial activity against different types of microorganism, such as bacteria and yeast. The nanostructures are able to exert stress to the microorganism, and therefore controlling or killing them.
Preparation of a coatings formulation with alkali swellable polymer particles
The present invention relates to a process for preparing a coatings composition with an open time additive comprising the steps of a) contacting an aqueous dispersion of alkali swellable polymer particles with a rheology modifier and a binder to form a coatings composition with a VOC of less than 50 g/L; and b) neutralizing the alkali swellable particles with a non-volatile base after or upon contact with the rheology modifier and the binder to form swelled multi-staged polymer particles; wherein the alkali swellable polymer particles comprise a shell having a T.sub.g of not greater than 25° C. and an acid functionalized core; and wherein the core-to-shell ratio is in the range of from 1:3.2 to 1:10. The composition arising from the process of the present invention is useful for improving open time, especially for low VOC coatings applications.
HARD COATING FILM, HARD COATING FILM-APPLIED SUBSTRATE, COATING MATERIAL COMPOSITION, AND WINDOW MATERIAL
A hard coating film containing a polymer nanoparticle (A) and a matrix component (B), wherein a Martens hardness HM.sub.A of the polymer nanoparticle (A) and a Martens hardness HM.sub.B of the matrix component (B) satisfy a relationship of HM.sub.B/HM.sub.A>1, and a Martens hardness HM of the hard coating film is 100 N/mm.sup.2 or more.
LAMINATE FOR MOLDING
The problem addressed by this invention is to provide a laminate for molding having excellent moldability and post-curing properties of the hard-coat layer, and which can maintain the surface of the hard-coat layer in a satisfactory state while uncured. This problem is solved by a laminate for molding containing a hard-coat layer and a masking film affixed to the surface of the hard-coat layer, having an adhesive surface, which is the hard-coat layer-side surface of the masking film, with a surface free energy of at least 30.0 (mN/m) measured in accordance with the OWRK method, before being affixed. The hard-coat layer is in an uncured state.
RESIN COMPOSITION FOR ANTI-GLARE COATING AND ANTI-GLARE COATING FILM PREPARED THEREBY
Disclosed are an anti-glare coating resin composition and an anti-glare coating film including the same. Specifically, provided are an anti-glare coating resin composition that includes a siloxane resin containing an epoxy group and an acrylic group, and further includes organic or inorganic particles, and thus ensures hardness, scratch resistance and processability, and provides anti-glare property by introduction of particles, and an anti-glare coating film produced using the same. Also, it is possible to realize hardness, abrasion resistance and anti-glare property of a film resin prepared using the resin composition and a film produced using the same.