Abstract:
An antibacterial polymer material includes a polymer body and plural antibacterial structures mixed with the polymer body and bonded with the polymer body, and the antibacterial structures have a content of 0.2%-8%. The antibacterial polymer material may be manufactured to form an antibacterial plastic product and an antibacterial fiber, and the antibacterial structures are mixed with the polymer body and bonded with the polymer body, so that the antibacterial ingredient is distributed more uniformly in the product or masterbatch to prevent the antibacterial ingredient from being just distributed on the surface or the antibacterial effect from being lessened or vanished due to a damage of the surface by an external force. Since the antibacterial ingredient is mixed with the masterbatch or product, the possibility of the antibacterial ingredient exuding a corroded or damaged surface is reduced to improve the effect of environmental protection.
Abstract:
Foam compositions are provided. The compositions are prepared from multifunctional acetoacetate esters and multi-functional amines or acrylates. The foam compositions can include one or more additives. The foam compositions can be used for home and commercial insulation, air sealing, sound proofing, structural improvement, and exterior roofing, among other applications. The foam compositions provide advantages of being isocyanate free and offer reduced exposure to isocyanate.
Abstract:
An embodiment of the invention is directed to a biorenewable thermoplastic, poly(dihydroferulic acid) (PHFA), which is an effective polyethylene terephthalate (PET) mimic. In another embodiment of the invention, a biorenewable thermoplastic copolymer, poly(dihydroferulic acid-co-ferulic acid) is an effective polystyrene mimic. The PHFA and the copolymer can be prepared by the homocondensation of acetyldihydroferulic acid or the copolymerization of acetyldihydroferulic acid with acetylferulic acid, which are monomers that can be synthesized from starling materials isolated from lignin, rice bran, or other biorenewable sources.
Abstract:
The present invention relates to a modified oligoester constituted by an oligoester (1) that, at one of the ends thereof has a group that reacts with organic acids or alcohols, forming covalent bonds, and at one or more of the other ends thereof has one or more cyclic acetal groups (2). In addition, processes are provided for the production of said modified oligoester, and also the use thereof in the production of polyester resins, coating compositions and composites, plus the process for producing said resins. The field of application of the present invention relates to the chemicals sector, particularly in relation to oligoesters modified with cyclic acetal groups.
Abstract:
La presente invención corresponde a un oligoéster modificado constituido por un oligoéster (1) que en una de sus terminaciones tiene un grupo que reacciona con alcoholes o ácidos orgánicos formando enlaces covalentes y en una o más de sus demás terminaciones tiene uno o más grupos acétales cíclicos (2). Adicionalmente, se proveen los procesos para la producción de dicho oligoéster modificado, así como el uso de los mismos en la fabricación de resinas de poliéster, composiciones de recubrimiento y composite, al igual que el proceso de producción de dichas resinas. El campo de aplicación de la presente invención está relacionado con el sector químico, particularmente en lo que se refiere a oligoésteres modificados con grupos acetales cíclicos.
Abstract:
Methods are provided for producing bio-oil polyols, alkoxylating bio-oil polyols to provide polyols, and for employing the alkoxylated bio-oil polyols for making polymers or copolymers of polyesters or polyurethanes. Compositions and methods are provided for incorporating bio-oils into phenolic resins such as phenol-formaldehyde resin and phenol- formaldehyde -urea resin, as well as hot melt adhesive compositions.
Abstract:
A dual curable composition is provided, comprising a compound represented by formula (I): (acrylate) a -(A)-(silane) b in which a and b are identical or different and are each represented by an integer greater than or equal to 1; and wherein the dual curable composition is radiation curable and/or moisture curable. The moiety A comprises at least one of an aliphatic hydrocarbon, a cycloaliphatic hydrocarbon, an aryl moiety, an ether, an ester, an amide, a urethane, a urea, a hydroxyl group-containing organic moiety, an acrylic oligomer, an epoxy oligomer, a urethane oligomer, a polyester oligomer, or mixtures thereof, and the dual curable composition has a molecular weight greater than or equal to 300.
Abstract:
A polymer comprises reaction product of (a) one or more diacid, diester thereof, glycolide, and (b) one or more polyol, wherein component (a) comprises glycolide or combinations thereof, and component (b) comprises one or more polyol comprising a mixture of 1,3-cyclohexanedimethanol and 1,4-cyclohexanedimethanol, or 2,2,4,4- tetramethyl-1,3-cyclobutanediol, or combinations thereof.
Abstract:
Disclosed are polymerization systems and methods for the formation of polyesters from epoxides and carbon monoxide. The inventive polymerization systems feature the combination of metal carbonyl compounds and polymerization initiators and are characterized in that the molar ratios of metal carbonyl compound, polymerization initiators and provided epoxides are present in certain ratios.