Abstract: The present invention relates to an unsymmetrical squaraine dye of formula (I) and process for the preparation thereof. The process includes dissolving a 3-cycloalkene-1,2-dione compound in acetone and aqueous HCl to afford a semisquaraine compound. The process includes refluxing the semisquaraine compound and phenyl carboxylic acid dissolved in solvent to afford the unsymmetrical squaraine dye. Further, the present invention relates to an electronic device with an enhanced device efficiency containing a dye of formula (I) co-sensitized with a squaraine dye.

Abstract: A composition comprising a pre-polymer having activated and functionalized groups on a polymeric backbone is disclosed. The composition may be used in a method of adhering or sealing tissue, or for adhering a medical device to the surface of a tissue. The composition has improved adhesive and sealant properties and comprises a pre-polymer comprising a polymeric unit of the general formula (-A-B-)n. A represents a substituted or unsubstituted polyol, B represents a substituted or unsubstituted polyacid, and n represents an integer greater than 1. Additionally, the composition has a zeta potential in the range of 0 to 45 mV.

Abstract: The present application relates to a polyester and the molded product thereof. Determined by aminolytic analysis, the polyester has a weight ratio of the second repeating unit of formula (ii) to the third repeating unit of formula (iii) is of 0.100 to 0.490 as determined by analysis of the polyester. The polyester of this application has ideal dyeing ability, heat resistance, and mechanical properties.

Abstract: The present disclosure provides polyvinyl alcohol-based polymer compositions. One aspect provides a polymer composition comprising about 60 to about 99% by weight of a polymer (A), about 0.05 to about 10% by weight of a phosphite, at least one additive selected from vitamin E and epoxidised soy bean oil, and about 0 to about 10% by weight of a PEG-grafted polyvinyl acetate copolymer. Processes for preparation of said polymer composition as well as uses thereof and articles prepared therefrom are also provided.

Abstract: A long fiber-reinforced propylene resin composition, including a long fiber-reinforced resin pellet; an ethylene polymer that has a density of 865 to 950 kg/m3, a melting point of 50 to 105° C., and a heat of fusion of 52 J/g or more and is optionally modified; and optionally, a propylene polymer, wherein the long fiber-reinforced resin pellet is a pellet including a propylene polymer, a reinforcing fiber, and a modified polypropylene.

Abstract: In another embodiment, a TPV composition includes an ethylene based copolymer, a thermoplastic polyolefin, and one or more of an oil or a plasticizer. The ethylene based copolymer has an Mw of from 400,000 g/mol to 3,000,000 g/mol, a Mw/Mn of 10 or less, and a g?vis of 0.7 or more. An amount of the one or more of an oil or a plasticizer in the TPV composition is from 10 parts by weight to 200 parts by weight per 100 parts by weight of the ethylene based copolymer, and the TPV composition has an extrusion surface roughness that is from 50 ?in to 120 ?in. In another embodiment is provided a method of forming a TPV composition. In another embodiment is provided a method of forming an article that includes a TPV composition. In another embodiment is provided an article that includes a TPV composition.

Abstract: Provided is a hot-melt pressure-sensitive adhesive composition which enables to form a pressure-sensitive adhesive layer without allowing the progression of rapid gelation at the time of heating and melting. The pressure-sensitive adhesive composition provided by the present invention is a solvent-free hot-melt pressure-sensitive adhesive composition. The pressure-sensitive adhesive composition includes a base polymer, an isocyanate crosslinking agent, and a tackifier A represented by the following general formula (1): R—[(CH3)2C6H2—(CH2O)n—CH2]m—OH??(1) (in the general formula (1), R is a hydrogen atom or a hydroxyl group, m is 9 to 16, and n is 0 to 3). A content of the tackifier A with respect to 100 parts by weight of the base polymer is 1 part by weight to 10 parts by weight.

Abstract: Polymer particles that comprise a thermoplastic polymer and a nucleating agent may be useful in additive manufacturing methods where warping may be mitigated. For example, a method of producing sais polymer particles may comprise: a thermoplastic polymer, a nucleating agent, a carrier fluid, and optionally an emulsion stabilizer at a temperature at or greater than a melting point or softening temperature of the thermoplastic polymer to emulsify a thermoplastic polymer melt in the carrier fluid; cooling the mixture to form polymer particles; and separating the polymer particles from the carrier fluid, wherein the polymer particles comprise the thermoplastic polymer, the nucleating agent, the emulsion stabilizer, if included, and wherein the polymer particles have a crystallization temperature that is substantially the same as a crystallization temperature of the thermoplastic polymer prior to mixing.

Abstract: The present disclosure relates to a single-use filter component for removing NO2 in an air-treatment system, the component comprising a polymeric composition as an air-filtration medium, the polymeric composition comprising a plurality of free vinyl groups, wherein the component permits inspection of the air-filtration medium by an end-user to determine when the filter is spent, based on a white to yellow colour change, or comprises an optical sensor configured to notify the end-user of the colour change. The present disclosure further relates to a single-use filter component for simultaneously removing NO2 in an air-treatment system, wherein the component comprises a HEPA filter formed from a polymeric composition comprising a plurality of free vinyl groups. The present disclosure further relates to an air treatment system, to a method of treating air and to the use of a polymer or copolymer of divinylbenzene for forming an air-filtration medium.

Abstract: A thermothickening fluid is provided which comprises a liquid phase; a first polymer comprising functional groups and having a room temperature solubility in the liquid phase; and a second, different polymer comprising functional groups and having a room temperature solubility in the liquid phase, wherein functional groups on the first polymer are capable of associating with functional groups on the second polymer to form complexes, and the room temperature solubility of the first polymer is greater than the room temperature solubility of the second polymer. The fluid is a colloid at room temperature, a solution at an elevated temperature, and exhibits a thermothickening/thinning transition viscosity value at a thermo-thickening/thinning transition temperature between room temperature and the elevated temperature.

Abstract: A latex composition includes a latex of a conjugated diene polymer (A) having a glass transition temperature of 10° C. or less and a latex of a polymer (B) having a glass transition temperature of more than 10° C., wherein the value of (CS(B)?CS(A)) is more than 0% by weight, where a chemical stability of the latex of the conjugated diene polymer (A) to CaCl2, when the solids concentration of the latex is 20% by weight, is defined as CS(A) (% by weight), and a chemical stability of the latex of the polymer (B) to CaCl2, when the solids concentration of the latex is 20% by weight, is defined as CS(B) (% by weight).

Abstract: The present invention is directed to the use of a thermoplastic polymer-wollastonite composite and/or a thermoplastic elastomer-wollastonite composite for reducing noise. The present invention is also directed to an article comprising a thermoplastic polymer-wollastonite composite and/or a thermoplastic elastomer-wollastonite composite, a method of making an article according to the invention, and a device comprising an article according to the invention.

Abstract: The present application relates to an adhesive composition including a naturally occurring acid, a nitrogen compound, and a latex; and a rubber reinforcing material and an article including the same.

Abstract: A composition includes a polymer, a functional component, and an oxidation catalyst. The functional component may be an oxidizable additive or a precursor thereof. The oxidizable additive includes an organic moiety including a first carbon atom (C1) attached to a hydrogen (H), a first group having a conjugated unit (a double bond, a triple bond, an aromatic ring); a second group having a heteroatom (including C?N, N?O, C?O, an O, a N, a fragment having at least three heteroatoms (including a N) within a spatial distance of 4 ? from C1); and a third group (hydrogen, an alkyl group, an aromatic group, a double bond, a triple bond, and a heteroatom). The C1 may be attached to a strong mesomeric electron-donating group and a strong mesomeric electron-withdrawing group; or to a conjugated group and a mesomeric group. The functional component may be derived from a recycled plastic article.

Abstract: Disclosed is a reinforced polypropylene material, comprising in parts by weight: a, 10-90 parts of polypropylene resin, b, 0.5-25 parts of compatilizer, c, 5-60 parts of reinforced fibers and d, 0.1-20 parts of low-hardness toner. The reinforced fibers comprise a component I, a component II and a component III, where the component I is composed of reinforced fibers with a length of 0.1-0.6 mm and accounts for 35-50% of number of reinforced fibers, the component II is composed of reinforced fibers with a length of 0.7-1.3 mm and accounts for 35-45% of number of reinforced fibers, and component III is composed of reinforced fibers with a length of 1.4-2.0 mm and accounts for 5-20% of number of reinforced fibers.

Abstract: Presently described are optical films comprising a polymerized (e.g. microstructured) surface that comprises the reaction product of a polymerizable resin composition and polymerizable resin compositions that comprise nanoparticles; at least one first monomer comprising at least two (meth)acrylate groups; and at least one second (meth)acrylate monomer having the structure wherein at least one R1 comprises an aromatic substituent, t is an integer from 1 to 4, and R2 is hydrogen or methyl.

Abstract: A polyester resin blend and a molded article formed therefrom are provided. The polyester resin blend exhibits excellent processability even if it contains recycled polyethylene terephthalate as well as virgin polyethylene terephthalate, and can provide high quality molded articles, especially by extrusion blow molding. In addition, it can be reused, and it is expected to be useful for providing continuously usable plastics that have been recently attracting attention.

Abstract: Provided is a hot melt adhesive for insulating glass spacer, prepared from raw materials comprising the following components: 1-10 parts by weight of butyl rubber, 25-50 parts by weight of a polyisobutylene mixture; 5-15 parts by weight of a tackifying resin; 1-15 parts by weight of a tackifier; 5-15 parts by weight of a polymer; 0.1-1 part by weight of a lubricant; 0.1-1 part by weight of an antioxidant; 15-50 parts by weight of a filler; 1-10 parts by weight of a water absorbent; and 5-25 parts by weight of carbon black. Compared with the prior art, in the hot melt adhesive for insulating glass spacer provided in the present disclosure, components with specific contents are used, such that relatively good overall interaction is achieved, the thixotropy of the product is good, and the adhesion to both silicone sealant and glass is excellent.

Abstract: A sensor system comprises a LiDAR unit, a camera for visible light and a cover through which light arrives at the LiDAR unit and the camera. The cover comprises a layer containing dyes. The light transmission of the cover in the range from 380 nm to 780 nm is 3% to 25% and in the range from 380 nm to 1100 nm is 40% or more. The attenuation of the LiDAR signal by the cover is such that at least 65% of the original signal intensity reaches the LiDAR detector. The layer containing dyes contains a composition comprising i) at least 70% by weight of a transparent thermoplastic polymer, ii) at least one green and/or red dye and iii) at least one red and/or violet dye. The product of the sum of the weight % fractions of dyes ii) and iii) and the thickness of the layer containing dyes is 0.041 to 0.12 wt % mm. Finally, the composition contains 0% to 0.0005% by weight of IR absorbers.

Abstract: Paint and coating compositions including chitosan exhibit one or more of improved elongation, improved thermocycling characteristics, reduced leaching of coating components, or lesser susceptibility to fungal and mildew defacement than conventional coatings, articles coated in the same, and methods for making said coating compositions or coated articles.