26 results about "Cellulose acetate propionate" patented technology

The present invention relates to a nail sticker and the nail sticker is a curable nail sticker. The nail sticker includes a soft layer, the soft layer includes a resin for the soft layer, and the resin for the soft layer may include at least one of cellulose acetate butyrate and cellulose acetate propionate.

The present disclosure relates to a biodegradable plastic bag composition and a method for manufacturing a plastic bag using the same, wherein the plastic bag composition includes: cellulose acetate propionate (CAP); and polybutylene succinate (PBS), wherein cellulose acetate propionate:polybutylene succinate, which is the weight ratio of the cellulose acetate propionate and the polybutylene succinate, is approximately 75:25 to approximately 90:10.

The disclosure provides leather articles and a method for making leather articles comprising a substrate and a coating comprising a cellulose derivative having improved colorfastness to rubbing. The cellulose derivative may be methyl cellulose, ethyl cellulose, ethyl methyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxyethyl methyl cellulose, hydroxypropyl methyl cellulose, ethyl hydroxyethyl cellulose, cellulose acetate, cellulose triacetate, cellulose propionate, cellulose acetate propionate, cellulose acetate butyrate, microcrystalline cellulose, cellulose nitrate, or cellulose sulfate.

The thermal donor laminate system includes a release agent such as APS-705, APS-706, or APS-707. The thermal donor laminate system further includes polyvinyl acetal, poly(methyl methacrylate), cellulose acetate propionate, methacrylate beads dispersed in the thermal donor laminate system, an ultraviolet absorber agent, and toluene and methanol as solvents. The thermal donor laminate system is scratch resistant up to approximately 1000 grams.

The steam generating article includes a plurality of segments assembled in the form of a rod. The segments include a steam forming segment and a steam cooling segment within the rod downstream of the steam forming segment. The steam cooling section includes a curled cellulose ester (CE) film. The curled CE film may comprise cellulose acetate propionate, perforations, or both.

To provide a white ink composition with excellent hot lamination strength and highlight transfer properties. [Solution] An oil-based white ink composition comprising a polyurethane resin (A), cellulose acetate propionate (B), titanium dioxide pigment (C), water (D), and an organic solvent (E), wherein the 100% modulus of the polyurethane resin (A) is 0.4 to 3.5 MPa, the content of the polyurethane resin (A) on a solids basis is 10 to 25% by mass relative to the solids of the white ink composition, the content of cellulose acetate propionate (B) on a solids basis is 0.5 to 7% by mass relative to the solids of the white ink composition, the titanium dioxide pigment (C) is surface-treated, the amount of surface treatment of the titanium dioxide pigment (C) relative to the titanium dioxide is 6.5 to 9.5% by mass, and the content of water (D) is 1 to 5% by mass relative to the total mass of the white ink composition.

Provided are biodegradable beads formed from mixed cellulose esters, such as cellulose acetate butyrate and cellulose acetate propionate. Both the biodegradable beads and the mixed cellulose esters are freshwater biodegradable and can be used in a variety of downstream applications where biodegradable components are desired and required.

The invention discloses a method for synthesizing cellulose ester by taking acidic ionic liquid as a catalyst. The method comprises three steps of constant-temperature activation, esterification, hydrolysis and post-treatment. The 1, 8-diazabicyclo [5.4. 0] undec-7-ene-sulfuric acid [DBUH < + >] [HSO4 <->], triethylbenzyl-sulfuric acid [NB222H < + >] [HSO4 <->] and tetramethylguanidine-sulfuric acid [TMGH < + >] [HSO4 <->] acidic ionic liquid catalysts synthesized by the method are low in cost and easy to synthesize. The catalyst can be used for synthesis processes of cellulose acetate, cellulose acetate propionate and cellulose acetate butyrate at the same time, the synthesized cellulose acetate, cellulose acetate propionate and cellulose acetate butyrate are excellent in performance, and in addition, the used catalyst has high thermal stability and low volatility, is easy to recycle, and is suitable for industrial production. The method provided by the invention reduces the generation and treatment cost of pollutants, overcomes the problems of serious corrosivity and difficult reuse of the traditional sulfuric acid catalyst, and has important significance for promoting the green and efficient production of cellulose acetate, cellulose acetate propionate and cellulose acetate butyrate.

The invention discloses a method for synthesizing cellulose ester by taking amino acid ionic liquid as a catalyst. The used amino acid ionic liquid is lysine trifluoromethane sulfonate [Lys] [CF3SO3] 2, lysine p-toluenesulfonate [Lys] [Tos] 2, tryptophan trifluoromethane sulfonate [Trp] [CF3SO3], tryptophan p-toluenesulfonate [Trp] [Tos] and phenylalanine trifluoromethane sulfonate [Phe] [CF3SO3]; the method can be used for synthesis processes of cellulose acetate, cellulose propionate, cellulose butyrate, cellulose acetate propionate and cellulose acetate butyrate at the same time, and the synthesized cellulose ester is excellent in performance. Besides, the used amino acid ionic liquid has the advantages of low toxicity, easiness in biodegradation and reproducibility, the problems that a traditional sulfuric acid catalyst is serious in corrosivity and difficult to reuse are solved, and the method has important significance on promoting green and efficient production of cellulose ester.

An inkjet ink comprises a cellulosic polymer for forming a porous network structure, a blend comprising a solvent and nonsolvent, the solvent being more volatile than the nonsolvent, and a film-forming binder insoluble in acetone but soluble in both the nonsolvent and the blend. The nonsolvent may be water and the solvent may be acetone, methanol, ethanol, or propanol. The cellulosic polymer may be cellulose acetate propionate or cellulose acetate butyrate. The binder may be polyvinyl pyrrolidone or an ionic polymer with a nonpolymeric counterion. Another inkjet ink comprises a cellulosic polymer, a solvent, a nonsolvent, and a film-forming binder soluble in the nonsolvent and in a blend comprising the solvent and nonsolvent, wherein the solvent is more volatile than the nonsolvent. In this ink, the cellulosic polymer and binder are incompatible such that when the solvent and nonsolvent evaporate, the cellulosic polymer and binder form a heterogeneous structure having two glass transition temperatures. A printed deposit is also disclosed, which comprises a light scattering layer having a porous network structure comprising a cellulosic polymer and a binder layer that binds the light scattering layer to a substrate upon which the printed deposit is disposed.

A vapor-generating article comprises a plurality of segments assembled in the form of a rod. The segments include a vapor-forming segment and a vapor-cooling segment located downstream of the vapor-forming segment within the rod. The vapor-cooling segment comprises a crimped cellulose ester (CE) film. The crimped CE film may comprise cellulose acetate propionate, perforations, or both.

The present invention discloses a method for synthesizing cellulose ester using acidic ionic liquid as catalyst, comprising three steps of constant temperature activation, esterification, hydrolysis and post-treatment. + ][HSO4 ‑ ]、Triethylbenzyl-sulfate[N B222 H + ][HSO4 ‑ ], tetramethylguanidine-sulfate [TMGH + ][HSO4 ‑ Acidic ionic liquid catalysts are low-cost and easy to synthesize. This catalyst can be used in the synthesis of cellulose acetate, cellulose acetate propionate, and cellulose acetate butyrate. The resulting cellulose acetate, cellulose acetate propionate, and cellulose acetate butyrate exhibit excellent performance. Furthermore, the catalyst exhibits high thermal stability and low volatility, making it easily recyclable, reducing pollutant generation and disposal costs. This overcomes the severe corrosiveness and difficulty in reusing of traditional sulfuric acid catalysts, making it a valuable tool for promoting the green and efficient production of cellulose acetate, cellulose acetate propionate, and cellulose acetate butyrate.

The application discloses a method for synthesizing cellulose ester by using amino acid ionic liquid as a catalyst. The amino acid ionic liquid used is lysine trifluoromethane sulfonate [Lys][CF3SO3]2, lysine p-toluene sulfonate [Lys][Tos]2, tryptophan trifluoromethane sulfonate [Trp][CF3SO3], tryptophan p-toluene sulfonate [Trp][Tos] and phenylalanine trifluoromethane sulfonate [Phe][CF3SO3], which can be simultaneously used in the synthesis processes of cellulose acetate, cellulose propionate, cellulose butyrate, cellulose acetate propionate and cellulose acetate butyrate, and the synthesized cellulose ester has excellent performance. In addition, the amino acid ionic liquid used has the advantages of low toxicity, easy biodegradation and reproducibility, overcomes the problems of serious corrosion and difficult reuse of a traditional sulfuric acid catalyst, and has important significance for promoting the green and efficient production of cellulose ester.

The present disclosure provides a leather article and a method for making a leather article, comprising a substrate and a coating comprising a cellulose derivative having improved color fastness to rubbing. The cellulose derivative can be methyl cellulose, ethyl cellulose, ethyl methyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxyethyl methyl cellulose, hydroxypropyl methyl cellulose, ethyl hydroxyethyl cellulose, cellulose acetate, cellulose triacetate, cellulose propionate, cellulose acetate propionate, cellulose acetate butyrate, microcrystalline cellulose, cellulose nitrate, or cellulose sulfate.

Biodegradable beads are provided that are formed from mixed cellulose esters, such as cellulose acetate butyrate or cellulose acetate propionate, and which exhibit superior oil absorption properties. The biodegradable beads and mixed cellulose esters are both freshwater biodegradable and may be used in various downstream applications where biodegradable components are desired and sought.

Provided are: a method for producing a recycled substrate, which is capable of suppressing coloring of an alkali solution after removal when a film is removed from a plastic base material by treatment using the alkali solution; and a printed matter having a removable film that can be suitably used in the method for producing a recycled substrate. A printed matter comprising a laminate of a substrate and a coating film that can be detached from the substrate by treatment with an alkali solution, the coating film having a first layer and a second layer in contact with the first layer, the first layer contains a colorant and at least one resin A selected from the group consisting of acrylic resins, urethane resins, polyamide resins, rosin resins, and polyester resins. The second layer contains at least one resin (B) selected from the group consisting of vinyl chloride-vinyl acetate copolymer resins, polyvinyl butyral resins, cellulose acetate propionate resins, and cellulose acetate butyrate resins.

Biodegradable beads are provided that are formed from mixed cellulose esters, such as cellulose acetate butyrate or cellulose acetate propionate. The biodegradable beads and mixed cellulose esters are both freshwater biodegradable and may be used in various downstream applications where biodegradable components are desired and sought.

A biodegradable coated paper product comprising a paper substrate and a layer disposed on the paper substrate wherein the layer is formed from a biodegradable coating composition comprising: a. A cellulose ester which is cellulose acetate propionate (CAP) in an amount of 5.5 to 15 weight percent based on the total weight of (a), (b) and (c); b. A biodegradable polymer which is a polyester in an amount of from 45 to 75 wt% based on the total weight of (a), (b) and (c); and c. An inorganic filler in an amount of 12 to 40 wt%, based on the total weight of (a), (b), and (c); wherein the polyester is selected from the group consisting of poly (butylene succinate) (PBS), poly (butylene succinate adipate) (PBSA), polycaprolactone (PCL), poly (butylene adipate terephthalate) (PBAT), polylactic acid (PLA), and combinations thereof.

The invention discloses a preparation method of high-molecular-weight cellulose acetate propionate, which comprises the following steps: S1, activation: soaking cellulose in acetic acid to obtain activated cellulose; s2, esterification: mixing the activated cellulose with acetic anhydride, propionic anhydride and an N-alkyl sulfamic acid catalyst, and reacting to obtain cellulose acetate propionate esterification reaction liquid; s3, hydrolysis: adding water into the cellulose acetate propionate esterification reaction solution, and carrying out hydrolysis reaction to obtain a hydrolysis reaction solution; and S4, neutralizing the hydrolysis reaction solution, filtering, and separating to obtain the high-molecular-weight cellulose acetate propionate. According to the method, N-alkyl sulfamic acid is used as a catalyst, degradation in the cellulose esterification process can be effectively reduced, cellulose acetate propionate with the weight-average molecular weight larger than 120,000 is obtained, meanwhile, N-alkyl sulfamic acid is used as the catalyst, generation of gelatinous low-polymerization-degree cellulose ester can be reduced, and the yield of cellulose acetate propionate is increased. The filtering performance of the reaction liquid is obviously improved, and the turbidity value of the product is reduced.

A filter layer containing a fibrous matrix and an adsorbent embedded in the fibrous matrix for the targeted removal of substances that impair taste, in particular from wine, as well as a filter system with the filter layer, a use of the filter layer, a process for manufacturing the filter layer and a process for removing phenols from wine. The filter layer contains a fibrous matrix, preferably with cellulose fibres, and an adsorbent embedded in the matrix. The adsorbent has a weight percentage between 15% and 60%. The adsorbent contains cellulose ester particles, preferably cellulose acetate propionate particles, at least 80% of the particles having a diameter of less than 200 um. Alternatively or additionally, the adsorbent contains cellulose ester fibres, preferably cellulose acetate fibres, at least 80% of the fibres having a length of 0.5-5 mm, and a largest external diameter of 10 μm to 200 μm.

The present invention provides a bioplastic substrate that is sufficiently thin, resistant to deformation by heat, has a smooth surface, and is suitable for use as a substrate for electronic devices, as well as a method for manufacturing the same. [Solution] A bioplastic substrate having a film-like shape containing cellulose acetate propionate resin, with a thickness of 0.1 mm to 1.0 mm and a surface roughness (SRa) of 30 nm or less, wherein a 20 mm square test piece taken from the bioplastic substrate is placed on a horizontal mounting surface and heated at 80°C for 15 minutes, and the maximum distance between the mounting surface and the surface of the test piece facing the mounting surface is 0.3 mm or less.

The invention relates to a thermal transfer ribbon for outdoor traffic true color pattern printing and a preparation method thereof, and relates to the technical field of thermal transfer. The thermal transfer ribbon comprises a back coating layer, a base material and a color layer which are sequentially arranged from top to bottom. The back coating is prepared from the following raw materials in parts by weight: 8 to 12 parts of cellulose acetate propionate, 0.1 to 0.8 part of high-cohesiveness resin, 0.5 to 1.0 part of a lubricating agent, 0.4 to 0.7 part of filler and 2 to 3 parts of an auxiliary agent; the color layer is prepared from the following raw materials in parts by weight: 8 to 9 parts of methacrylic acid copolymer, 2 to 3 parts of vinyl chloride-vinyl acetate resin, 7 to 9 parts of pigment and 0.5 to 1 part of wax. The thermal transfer ribbon prepared by the invention is used for thermal transfer, can realize thermal transfer multi-color overlapped true color printing, has excellent light resistance and weather resistance, and is simple in structure and good in economical efficiency.

The thermal donor laminate system includes a release agent such as APS-705, APS- 706, or APS-707. The thermal donor laminate system further includes polyvinyl acetal, poly(methyl methacrylate), cellulose acetate propionate, methacrylate beads dispersed in the thermal donor laminate system, an ultraviolet absorber agent, and toluene and methanol as solvents. The thermal donor laminate system is scratch resistant up to approximately 1000 grams.

Provided are: a method for producing a recycled board, the method making it possible to suppress coloration of an alkali solution after a coating film is removed from a plastic substrate by a treatment with the alkali solution; and a printed item having a removable coating film, the printed item being suitable for use in the method for producing the recycled board.　The printed item comprises a laminate of a substrate and a coating film which is removable from the substrate by a treatment with an alkali solution, wherein the coating film comprises: a first layer which contains a colorant and at least one resin A selected from the group consisting of acrylic resins, urethane resins, polyamide resins, rosin resins, and polyester resins; and a second layer which is in contact with the first layer. The second layer contains at least one resin B selected from the group consisting of vinyl chloride / vinyl acetate copolymer resins, poly(vinyl butyral) resins, cellulose acetate propionate resins, and cellulose acetate butyrate resins.

Provided are biodegradable beads formed from mixed cellulose esters, such as cellulose acetate butyrate and cellulose acetate propionate, which exhibit excellent oil absorption properties. Both the biodegradable beads and the mixed cellulose esters are freshwater biodegradable and can be used in a variety of downstream applications where biodegradable components are desired and required.

The invention provides a preparation method of a moistureproof packaging material, which comprises the following steps: uniformly coating the surface of a base film with a moistureproof mixture, and drying to form a moistureproof layer, comprising 30%-40% of an acrylate copolymer, 20%-30% of polybutyl methacrylate, 20%-30% of cellulose acetate propionate and 5%-10% of cellulose acetate butyrate. Nickel plate laser images and texts are embossed on the surface, away from the base film, of the damp-proof layer, so that the damp-proof layer is provided with an image and text information surface; forming an aluminum layer on the moisture-proof layer through evaporation, and at least covering the surface of the graphic and text information with the aluminum layer to obtain a moisture-proof information film; the moisture-proof information film is adhered to at least one of the two opposite surfaces of the card paper through an adhesive, and the aluminum layer is adhered to the card paper. The invention further provides a damp-proof packaging material. The damp-proof packaging material is beneficial for improving the damp-proof performance.