Abstract:
Disclosed are multifunctional sulfur-containing polymers that are the reaction products of a sulfur-containing diol, a polyol containing at least three hydroxyl groups per polyol molecule, and an aldehyde, a ketone, or a combination thereof. Sealant compositions comprising the multifunctional sulfur-containing polymers are also disclosed.
Abstract:
The present invention provides two methods for synthesizing novel titania-polyurethane (nTiO2-PU) nanocomposites for self-cleaning coatings, one a polymer functionalization method (“grafting to”) and the other, a monomer functionalization method (“grafting from”). Here, 2,2 bis(hydroxymethyl) propionic acid (HMPA) was used as the coordination agent, which was reacted with n-TiO2 (50:50 anatase/rutile) to form nTiO2-HMPA, then polymerized in the monomer functionalization method. In the polymer functionalization method, HMPA was reacted with a pre-polymer to form the PU, and then subsequently reacted with n-TiO2 to form the polymer nanocomposite. The photocatalytic cleanability of the nanocomposites was investigated when exposed to ultraviolet radiation using additional unreacted HMPA or stearic acid as the model “dirt” compounds. Nanocomposites prepared using both strategies showed similar self-cleaning behavior, although the monomer technique gave less substrate degradation.
Abstract:
The invention provides highly functional epoxy resins that may be used themselves in coating formulations and applications but which may be further functionalized via ring-opening reactions of the epoxy groups yielding derivative resins with other useful functionalities. The highly functional epoxy resins are synthesized from the epoxidation of vegetable or seed oil esters of polyols having 4 or more hydroxyl groups/molecule. In one embodiment, the polyol is sucrose and the vegetable or seed oil is selected from corn oil, castor oil, soybean oil, safflower oil, sunflower oil, linseed oil, tall oil fatty acid, tung oil, vernonia oil, and mixtures thereof. Methods of making of the epoxy resin and each of its derivative resins are disclosed as are coating compositions and coated objects using each of the resins.
Abstract:
A moisture-cure composition is described that includesa) at least one silane-functional polymer P; b) at least one catalyst for cross-linking of silane functional polymers; and c) at least 65% w/w of at least one filler, wherein the composition in the fully cured state has a Shore A hardness of ≧60, determined in accordance with DIN 53505, and prior to curing has an extrusion pressure of ≦1000 N.
Abstract translation:描述了一种湿气固化组合物,其包括a)至少一种硅烷官能聚合物P; b)至少一种用于硅烷官能聚合物交联的催化剂; 和c)至少65%w / w的至少一种填料,其中完全固化状态的组合物具有根据DIN 53505测定的肖氏A硬度≥60,并且在固化之前的挤出压力为& ; 1000 N.
Abstract:
A water vapor permeable, water resistant film with a pore size greater than that of water vapor, but smaller than that of a water droplet, or roughly about 90 microns, comprising a polymer, prepolymer, oligamer, or copolymer containing a fatty group pendant to a backbone of the form: Where R is a saturated or unsaturated, branched or linear alkyl group with from 5 to 22 carbons and n is the common designation of a repeating unit.
Abstract:
Provided is an active energy ray-curable inkjet ink containing at least photopolymerizable compounds. The photopolymerizable compounds include: at least one monofunctional monomer selected from the group consisting of a monofunctional monomer of which homopolymer has a glass transition temperature of 90° C. or higher, a monofunctional monomer having a ring structure, and a monofunctional monomer of which homopolymer has a glass transition temperature of 90° C. or higher and that has a ring structure; and urethane (meth)acrylate.
Abstract:
A coating composition for application to the surface of a container comprising: (a) a film-forming resinous material comprising a functional group-containing reaction product of: (i) a cyclic carbonate group-containing material, (ii) a polyamine; (b) a curing agent reactive with functional groups of (a); (c) a liquid diluent.
Abstract:
There is described a method of preparing a post-modified polymer the method comprising the steps of: (1) polymerising a monomer composition comprising from 2.5 to 75% by weight of the total monomer composition of at least one itaconic anhydride, precursor thereof and/or derivative thereof in a polymerisation method to obtain an itaconate Polymer A; (2) reacting in a post modification step at least 10 mole-% of the anhydride groups, anhydride precursor groups and/or anhydride derived groups of the Polymer A obtained from step (1) with a Nucleophile B to form a post-modified Polymer C, and optionally using said polymer C as seed or stabiliser in a further step (3) to form a sequential Polymer D.
Abstract:
There are described a dispersion of polymeric beads where the beads comprise a copolymer composition comprising (preferably consisting essentially of): copolymers (and processes for making them) comprising (a) at least 8.5 wt-% preferably >=20 wt-% of a higher itaconate diester (preferably dibutyl itaconate—DBI); (b) less than 23 wt-% acid monomer but also sufficient to have an acid value less than 150 mg KOH/g of polymer, (c) optionally with less than 50 wt-% of other itaconate monomers, and (d) optionally less than 77 wt-% of other monomers not (a) to (c). The DBI may be biorenewable. A further embodiment is an aqueous suspension polymerisation process for preparing vinyl polymer beads from olefinically unsaturated monomers and a free-radical initiator, where at least 10 wt-% of the monomer is DBI.
Abstract:
A method minimizes emissions while spraying a mixture of a resin composition and a polyisocyanate onto a surface. The resin composition has a hydroxyl content of at least 400 mg KOH/g and includes a blowing agent that is a liquid under pressure, a first polyol, at least one additional polyol other than the first polyol, and optionally a catalyst, surfactant, and water. The mixture is sprayed onto the surface to form a polyurethane foam having a closed cell content of at least 90 percent. The mixture is also sprayed through a spray nozzle at a spray angle corresponding to a control spray angle of from 15 to 125 degrees measured at a pressure of from 10 to 40 psi using water as a standard. The step of spraying produces less than 50 parts of the polyisocyanate per one billion parts of air according to OSHA Method 47.