393 results about "Vinyl polymer" patented technology

The invention relates to a process for recovery of rubber-modified vinyl(co)polymer from a polycarbonate resin or an optionally shredded molded part made thereof and the use of the recovered rubber-modified vinyl(co)polymer for the production of molded parts as well as blend partner in polycarbonate blends. Further optional aspects are the recovery of aromatic and / or aliphatic diol and the use of this diol for the production of polycarbonates.

Catalyst systems for olefin polymerization include a metal-ligand complex of a general formula (I). The metal-ligand complex of formula (I) is a transition metal complex of titanium, zirconium, or hafnium, in which the transition metal is coordinated with a biaryl phenoxy ligand structure. Olefin polymerization processes include contacting ethylene and optionally one or more (C3-C12) alpha-olefins in the presence of the catalyst system to produce an ethylene-based polymer or copolymer.

Processes for producing activated chromium catalysts such as titanated chromium / silica catalysts are disclosed, and these processes utilize a multistep process involving exposure to inert and oxidizing atmospheres at specific temperature conditions. The resulting activated chromium catalysts have unexpectedly high melt index potential and can produce ethylene-based polymers with lower gel counts in addition to higher melt indices.

A polymeric composition includes 20 wt% to 70 wt% of a first ethylene-based polymer based on a total weight of the polymeric composition, wherein the first ethylene-based polymer has a density of 0.93 g / cc to 0.970 g / cc as measured according to ASTM D792; 5 wt% to 35 wt% of a second ethylene-based polymer based on a total weight of the polymeric composition, wherein the second ethylene-based polymer has a density of 0.885 g / cc to 0.93 g / cc as measured according to ASTM D792; and 1 wt% to 55 wt% of a polymeric shrink additive based on a total weight of the polymeric composition, wherein the polymeric shrink additive has a melting peak temperature or glass transition temperature greater than a melting peak temperature of the first ethylene-based polymer and the second ethylene-based polymer.

The present invention discloses a biphasic Nitrogen doped sodiophilic anode. The present disclosure also provides a process of preparing a defect rich Nitrogen doped waste polymer derived carbon (PDC) and commercial polyvinyl based polymer derived carbon (PRC) as carbon precursor for use in sodium ion / metal battery with high capacity, long cyclic stability in both half cell and full cell.

The invention concerns a composition comprising a fluoropolymer, a silicon-sulfur compound, a vinyl polymer consisting in carbon and hydrogen atoms, and optionally oxygen and / or nitrogen atoms, and a solvent or a mixture of solvents and methods for the preparation thereof and for preparing a coated substrate by applying said composition.

The invention concerns a monolayer comprising a fluoropolymer, a silicon-sulfur compound, and a vinyl polymer consisting in carbon and hydrogen atoms, and optionally oxygen and / or nitrogen atoms, an assembly comprising a substrate and said monolayer, a method for preparing said monolayer, a component comprising said monolayer and a device comprising said component.

The invention discloses all-water foaming ultralow-density polyurethane foam and a preparation method thereof. The foam is prepared from the following components in parts by weight: 100 parts of polyether polyol composition, 100 to 150 parts of polyisocyanate and 20 to 30 parts of water, the polyether polyol composition is prepared from 30 to 52 percent of polyether polyol A, 25 to 50 percent of polyether polyol B and 5 to 15 percent of polyether polyol C; the functionality of the polyether polyol A is 2-3, and the hydroxyl value of the polyether polyol A is 25-60 mgKOH / g; the polyether polyol B is vinyl polymer grafted polyether polyol with the functionality of 3, and the hydroxyl value of the polyether polyol B is 21-32 mgKOH / g; and the functionality of the polyether polyol C is 3-6, and the hydroxyl value of the polyether polyol C is 350-500 mgKOH / g. The density of the polyurethane foam material is 3-8 kg / m < 3 >, the aperture ratio is larger than or equal to 95%, and the polyurethane foam material has the advantages of being light in weight, high in squaring amount, high in strength, not prone to shrinkage and the like.

To provide a group of polyorganosiloxane-containing polymer particles that yield molded articles with excellent impact strength. [Solution] A polyorganosiloxane-containing polymer particle group according to one aspect of the present invention comprises a polymer (A) containing a polyorganosiloxane (A1) and a first vinyl polymer (A2), and a second vinyl polymer (B). When the cross-section of a resin piece obtained by dispersing the polyorganosiloxane-containing polymer particle group in a resin is observed with a transmission electron microscope, the ratio of the number of particles satisfying the following formula (1) is less than 60%, where L is the diameter of each particle in the polyorganosiloxane-containing polymer particle group and M is the maximum domain length of the polyorganosiloxane (A1). M / L>0.1 ···(1)

Provided are multilayer films including ethylene-based polymers. The multilayer films can be fully compatible with polyethylene recycling streams. The multilayer films comprise a first outer layer, a second outer layer, and a core, the core including a first core layer that includes an ethylene-propylene copolymer. The multilayer films of the present invention can exhibit improved, maintained, or desirable properties, such as high tear resistance, in comparison to existing multilayer film structures that are not fully compatible with polyethylene recycling streams.

The present invention relates to a polymer composition comprising an ethylene-based polymer and a polylactic acid. Such polymer composition exhibits desirably good melt fracture prevention properties, in particular in production of polymer films.

The present invention provides a polyol composition, a foaming composition, a preparation method and an application thereof. Based on 100 parts by total weight, the polyol composition comprises the following components: 60 parts of polyether polyol and 5 - 40 parts of modified polyol; the preparation raw materials of the modified polyol include vinyl polymer grafted polyether polyol, alkoxysilane functionalized isocyanate and silica with active groups on the surface. By using the polyol composition provided in the present invention to prepare polyurethane foam, the obtained polyurethane foam has excellent water vapor permeability, fast drying speed for water, fast water absorption speed and good resilience.

The invention relates to the technical field of lithium ion batteries, in particular to an ultrahigh-nickel ternary positive electrode material as well as a preparation method and application thereof. The preparation method of the ultrahigh-nickel ternary positive electrode material provided by the invention comprises the following steps: mixing a first vinyl polymer, a precursor, a metal oxide and a solvent to obtain a spinning solution A; mixing a second vinyl polymer, a lithium source and a solvent to obtain a spinning solution B; respectively depositing the spinning solution A and the spinning solution B by adopting an opposite electrostatic spinning technology to obtain a film-shaped material, and sintering to obtain a matrix material; and coating the surface of a base material by a wet method to prepare a fast ion conductor coating layer, and carrying out second sintering to obtain the ultrahigh-nickel ternary positive electrode material. According to the method provided by the invention, the agglomeration phenomenon of the ultra-high nickel positive electrode material in the sintering process is effectively reduced, so that the lithium ion battery containing the ultra-high nickel ternary positive electrode material has relatively high capacity and excellent cycle performance.

The present invention relates to a multilayer film comprising: an inner layer system comprising a first surface and a second surface; a first skin layer adhered to the inner layer system at the first surface of the inner layer system; and a second skin layer adhered to the inner layer system at the second surface of the inner layer system; wherein the inner layer system consists of a polymer formulation (A), wherein the polymer formulation (A) comprises: > 60.0 and < 90.0 wt% of a first ethylene-based polymer which is a linear low density polyethylene A (LLDPE A); and > 10.0 and < 40.0 wt% of a high density polyethylene (HDPE) having a density > 940 and < 970 kg / m 3 , preferably > 955 and < 970 kg / m 3 ; measured according to ASTM D792 (2008); and the first and / or second skin layer is a sealing layer comprising a second ethylene-based polymer which is a linear low density polyethylene B (LLDPE B) comprising polymerized moieties derived from ethylene and 1-octene or 1-hexene having a density > 890 and < 915 kg / m 3 , preferably > 900 and < 915 kg / m 3 , measured according to ASTM D792 (2008); preferably, wherein the sealing layer comprises > 70.0 wt% of the second ethylene-based polymer, or wherein the sealing layer consists of the second ethylene-based polymer; wherein the multilayer film is a biaxially oriented film, wherein the biaxial orientation is introduced in solid state. This film allows the production of a sealed package having a sufficiently high seal strength at reduced sealing temperature (also referred to as seal initiation temperature) which at the same time has improved tensile properties, such as an improved tensile modulus in machine and transverse direction and an improved tensile strength in machine and transverse direction, which has proven.

The present invention provides a curable resin composition containing a vinyl polymer having a reactive silyl group, which exhibits excellent weather resistance and good extensibility. [Solution] A curable resin composition comprising a vinyl polymer (A), wherein the vinyl polymer (A) has a main chain having repeating units of polymerizable vinyl monomers and reactive silyl groups bonded to the vinyl polymer main chain via a urethane structure, and the vinyl polymer (A) is a polymer obtained by silylation of the plurality of hydroxyl groups of a vinyl polymer (a) having a plurality of hydroxyl groups and a weight-average molecular weight / hydroxyl value of more than 4,000.

The invention discloses a method for preparing a multi-block segmented copolymer with comonomer content in cascade distribution based on multiple reactors, which comprises the following steps of: adjusting the comonomer content, the comonomer type, the retention time and the catalyst type of each reactor by adopting a mode of connecting multiple reactors in series; the segmented copolymer with the comonomer content in cascade distribution is adjustable in strength and toughness range and good in product compatibility. The process method provided by the invention is especially suitable for a catalyst system of which the copolymerization capability is sensitive to the content of a comonomer. The block olefin copolymer has the characteristics of high mechanical strength, enhanced toughness, enhanced peel strength with glass or a back plate, increased crosslinking degree and improved light transmittance. The prepared polyolefin product can be widely applied to strength and hardness modification of vinyl polymers or allyl polymers.

The objective is to provide polyethylene resin that minimizes the leaching of contaminants such as elutes and degraded materials when used as a container for semiconductor cleaning chemicals. [Solution] Density of 0.960~0.970 g / cm³ 3 A low molecular weight ethylene-based polymer with a density of 0.920-0.940 g / cm³ 3 A polyethylene resin comprising two components of a high molecular weight ethylene polymer, wherein the weight ratio of the two components is 40:60 to 60:40, and having specific properties.

A method of producing a rapamycin-containing composition for treating skin disease, which comprises the steps of dissolving rapamycin in an ethanol-containing solvent, adding a gelling and / or thickening agent to the resulting rapamycin-containing solution, and adjusting the pH of the resulting rapamycin-containing composition to 5.5 to 6.1 with triethanolamine or tris(hydroxymethyl)aminomethane (TRIS) is provided. A method of inhibiting degradation of rapamycin in a rapamycin-containing composition for treating skin diseases, wherein the method comprises the step of adjusting the pH of the composition to 5.5 to 6.1 with triethanolamine or tris(hydroxymethyl)aminomethane is also provided. A rapamycin-containing composition for treating skin diseases comprising (i) rapamycin, (ii) carboxylic acid-containing aqueous polymer, and (iii) at least one pH adjuster selected from triethanolamine and tri(hydroxymethyl)aminomethane, having a pH of 5.5 to 6.1 is also provided. The carboxylic acid-containing polymer may be carboxy vinyl polymer (carbomer), carboxymethyl cellulose or carboxyethyl cellulose. The skin disease may be dermatitis, contact dermatitis, psoriasis, atopic dermatitis, seborrheic dermatitis, nummular eczema, vitiligo, keloids, autosensitised dermatitis, stasis dermatitis, sebaceous deficiency eczema, skin tumours of tuberous sclerosis, and skin tumours of Recklinghausen’s disease. Preferred topical gels comprise rapamycin, carboxy vinyl polymer (carbomer), ethanol, water and either triethanolamine or tris(hydroxymethyl)aminomethane.

A nonaqueous secondary battery electrode binder composition comprising a water soluble vinyl polymer that includes a structural unit (a) derived from a vinyl monomer (A) that has an acid component, a structural unit (b) derived from a vinyl monomer (B) that exhibits a solubility of 8-300 g with respect to 100 g of water at 25°C, and a structural unit (c) derived from a vinyl monomer (C) that exhibits a solubility of not less than 1 g to less than 8 g with respect to 100 g of water at 25°C, wherein the content proportion of the structural unit (c) derived from the vinyl monomer (C) is 5-80 mol% with respect to all monomer units of the water soluble vinyl polymer.

The present invention relates to a vinyl chloride-based polymer, a resin composition comprising same and a preparation method therefor, the vinyl chloride-based polymer having a degree of polymerization of 2,800-5,000, and having a polydispersity index of 3.5 or more, calculated from a weight average molecular weight and a number average molecular weight which are obtained through gel permeation chromatography (GPC) analysis by using polystyrene as a standard according to US EPA 3640A: 1994.

Fullerene-functionalized vinyl polymer having general formula (I):wherein:x is a fractional number comprised between 0 and 0.89;y is a fractional number comprised between 0.01 and 0.9;z is a fractional number comprised between 0.1 and 0.99;provided that the sum of x+y+z is equal to 1;p is an integer comprised between 10 and 10000;w is an integer comprised between 50 and 250;n is an integer comprised between 1 and 12;R represents a hydrogen atom; or is selected from C1-C20, linear or branched, saturated or unsaturated, alkyl groups, optionally containing heteroatoms, optionally substituted aryl groups, optionally substituted heteroaryl groups, optionally substituted cycloalkyl groups, optionally substituted heterocyclic groups.Said fullerene-functionalized vinyl polymer having general formula (I) can advantageously be used as an electron acceptor compound in organic photovoltaic devices (or solar devices).

The present invention addresses the problem of providing a resin composition in which a polymer having a carbonyl group and / or a carboxyl group is modified so as to change the physical properties thereof. The problem is solved by a resin composition which is obtained by melt-kneading a component A that is a polymer having a carbonyl group and / or a carboxyl group and a component B that is a terminally modified vinyl polymer having one or more amino groups at an end of the molecule.

This invention provides a waterborne epoxy ester resin composition with anti-corrosion properties and its preparation method. A two-step esterification method is designed to prepare epoxy ester intermediates A and B with different double bond types. The first, second, and third components are then added dropwise to a mixture of epoxy ester intermediates A and B in a segmented manner to graft and modify the two epoxy ester intermediates. Utilizing the characteristic that the conjugated double bonds in epoxy ester intermediate A readily copolymerize with vinyl monomers, the grafting rate of vinyl monomers, especially hydrophilic vinyl monomer C, onto the epoxy ester intermediate is increased, reducing the relative content of vinyl monomer self-polymers and improving the water resistance and anti-corrosion performance of the final coating. Furthermore, by introducing a functional repair monomer E, the ungrafted vinyl polymer segments are ensured to participate in the crosslinking reaction during film formation, reducing the adverse effects of ungrafted components on the water resistance and anti-corrosion performance of the waterborne epoxy ester resin.

A composition containing metal based nanoparticles (X), a polymer (Y), and a dispersion medium, the polymer (Y) being a vinyl polymer having a chain-like alkyl group having 10 to 28 carbon atoms and a nitrogen-containing heterocyclic group, the metal based nanoparticles (X) and the polymer (Y) being dispersed in the dispersion medium, the composition being used as an additive composition for a lubricating oil composition, an additive composition for a grease composition, a lubricating oil composition, or a grease composition. The polymer (Y) is one or more kind selected from the group consisting of a polymer (Y1) that contains two or more kinds selected from the group consisting of a constitutional unit derived from the following monomer (ya), a constitutional unit derived from the following monomer (yb), and a constitutional unit derived from the following monomer (yc), and a polymer (Y2) that contains a constitutional unit derived from the following monomer (yb) and does not contain a constitutional unit derived from the following monomer (ya) and a constitutional unit derived from the following monomer (yc): monomer (ya): an olefin having 12 to 30 carbon atoms, monomer (yb): a vinyl monomer having a nitrogen-containing heterocyclic group, at least one hydrogen atom of which is substituted by a chain-like alkyl group having 12 to 30 carbon atoms, and monomer (yc): a vinyl monomer having a nitrogen-containing heterocyclic group, all hydrogen atoms of which are not substituted by a chain-like alkyl group having 12 to 30 carbon atoms.

The present invention relates to a thermoplastic material, wherein the thermoplastic material comprises ethylene-based polymer material, wherein the ethylene-based polymer material has a Vicat softening temperature of ≥50° C. as determined in accordance with ISO 306 (2013), method A50, and a weight loss as determined on a compression moulded sheet according to ISO 15527 (2010), Annex B, using silica sand / water slurry with a mass ratio of 3:2, test duration 7 h, of ≤0.50 wt %. The invention also relates to a slurry transportation pipe comprising the thermoplastic material as its inner layer, or consisting of the thermoplastic material.

The present invention relates to a composition for a ball-type cosmetic container and a ball-type cosmetic container manufactured using same. The composition for a ball-type cosmetic container is characterized by comprising: a ball-type outer skin part forming a hollow sealed space for filling with a filler; and a discharge port for discharging the filler to a portion of the ball-type outer skin part. The outer skin part includes: an ethylene-based polymer resin; a rubber-based plastic resin; a bio-based polyethylene resin; and a polishing agent. According to the present invention, it is possible to provide a cosmetic container which can provide a beautiful appearance due to having excellent gloss, has excellent elasticity, thus ensuring dischargeability of the contents, and can reduce carbon dioxide and be recycled, thus being eco-friendly.

The present invention relates to an organic peroxide emulsion comprising: at least one organic peroxide; at least one emulsifier comprising at least one non-ionic surfactant comprising at least one fatty chain and / or a protective colloid agent; a combination of two or more anti-gelling agents comprising not more than 9.5 wt% of a first anti-freezing agent, at least one second anti-freezing agent, relative to the total weight of the emulsion of ethanol; and water. The present invention also relates to a process for preparing such an emulsion, the use of such an emulsion for the polymerization or copolymerization of one or more ethylenically unsaturated monomers, and a halogenated vinyl polymer obtained by using such an emulsion.

The polymer particle group containing polyorganosiloxane involved in this invention comprises a polymer (A) containing polyorganosiloxane (A1) and a first vinyl polymer (A2) and a second vinyl polymer (B). When the cross-section of a resin sheet obtained by dispersing the polymer particle group containing polyorganosiloxane in a resin is observed with a transmission electron microscope, the diameter of each particle of the polymer particle group containing polyorganosiloxane is set to L, and the maximum length of the polyorganosiloxane (A1) region is set to M. The ratio of the number of particles satisfying the following formula (1) is less than 60%. M / L>0.1···(1).

The present invention provides aqueous compositions comprising (i) a dispersion of an aqueous acrylic or vinyl polymer wherein the polymer comprises on average two or more hydroxyl groups or contains a polyol, (ii) one or more pigments, extenders or colorants, or a combination thereof, and (iii) one or more pigments, extenders or colorants, or combinations thereof, and (iii) one or more glycol ether amines having the following formula I: wherein R1 is a C1 to C6 alkyl group, or preferably a C3 to C4 alkyl group, R2 and R3 are independently CH3 or CH2-CH3; and m is 1 to 6, or preferably 1 to 2. The aqueous composition may also include a water dispersible polyisocyanate curing agent, thereby forming a curable aqueous coating composition that forms a polyurethane coating or film. # imgabs0 #

A method of preparing a branched polymer comprises the free radical polymerisation of a multivinyl monomer in the presence of a chain transfer agent, using a source of radicals, wherein the extent of propagation is controlled relative to the extent of chain transfer to prevent gelation of the polymer. The average length of each vinyl polymer chain within the product is short.