A biodegradable core-shell microcapsule composition with controlled release of an active material is provided, wherein the shell of the microcapsule is composed of a biopolymer cross-linked with a combination of two or more different types of cross-linking agents.

A biodegradable core-shell microcapsule composition with controlled release of an active material is provided, wherein the shell of the microcapsule is composed of a biopolymer cross-linked with a combination of two or more different types of cross-linking agents.

The present invention relates to a composition capable of improving properties of cleaning a dirt during cleaning.

The composition of the present invention is a composition containing a modified hydroxyalkyl cellulose (A) and a cationic surfactant (B), wherein the modified hydroxyalkyl cellulose (A) has a cationic group and a hydrophobic group represented by a formula (1), each of which is bound to a group resulting from eliminating a hydrogen atom from a hydroxy group of the hydroxyalkyl cellulose; a degree of substitution of the hydroxyalkyl group in the hydroxyalkyl cellulose is 0.1 or more and 3 or less; and a content of the cationic surfactant (B) is more than 1 part by mass and 1,500 parts by mass or less relative to 1 part by mass of the modified hydroxyalkyl cellulose (A).

*—Z—R.sup.1  (1)

A novel binder is provided. The binder comprises a polyvinyl alcohol-based polymer which has an average saponification value of 85.0 mol % to 89.0 mol % as measured according to JIS K6726 and meets requirement (A): based on data obtained by measurement of the polyvinyl alcohol-based polymer by liquid chromatography, a value represented by formula (3) shown below is 22 or more, wherein the measurement is performed with a liquid chromatography system equipped with a charged aerosol detector and a Thermo Scientific Acclaim™ 300 column (catalog number: 060266, carbon load: 8%, maximum pressure: 4500 psi, particle size: 3 μm, pore size: 300 A, stationary phase: C18, surface area: 100 m.sup.2/g, length: 150 mm, diameter: 4.6 mm, pH: 2.5 to 7.5, material: glass lined tubing) under the measurement conditions described below, wherein the data represent a baseline-normalized intensity over a retention time of 5.0 to 12.0 minutes at a sampling interval of 500 ms, and wherein the value represented by formula (3) is calculated from formulae (1) and (2) shown below, wherein the intensity at a retention time T.sub.i [min] is represented by P.sub.i [pA].
Measurement Conditions Concentration of an aqueous polyvinyl alcohol-based polymer solution: 0.1% by mass Injection volume of the aqueous polyvinyl alcohol-based polymer solution: 2 μL Column temperature: 50° C. Flow rate: 1.0 mL/min Eluent: a mixed solvent of water and methanol Eluent gradient conditions: the ratio of water and methanol in the eluent changes from 95:5 to 15:85 at a constant rate over a run time from minutes 0 to 10; and the ratio of water and methanol in the eluent is constant at 15:85 over a run time from minutes 10 to 15.

Formulae

T.sub.n=Σ(T.sub.i×P.sub.i)/Σ(P.sub.i)  Formula (1)

T.sub.w=Σ(T.sub.i.sup.2×P.sub.i)/Σ(T.sub.i×P.sub.i)  Formula (2)

{(T.sub.w/T.sub.n)−1}×1000  Formula (3)

A novel binder is provided. The binder comprises a polyvinyl alcohol-based polymer which has an average saponification value of 85.0 mol % to 89.0 mol % as measured according to JIS K6726 and meets requirement (A): based on data obtained by measurement of the polyvinyl alcohol-based polymer by liquid chromatography, a value represented by formula (3) shown below is 22 or more, wherein the measurement is performed with a liquid chromatography system equipped with a charged aerosol detector and a Thermo Scientific Acclaim™ 300 column (catalog number: 060266, carbon load: 8%, maximum pressure: 4500 psi, particle size: 3 μm, pore size: 300 A, stationary phase: C18, surface area: 100 m.sup.2/g, length: 150 mm, diameter: 4.6 mm, pH: 2.5 to 7.5, material: glass lined tubing) under the measurement conditions described below, wherein the data represent a baseline-normalized intensity over a retention time of 5.0 to 12.0 minutes at a sampling interval of 500 ms, and wherein the value represented by formula (3) is calculated from formulae (1) and (2) shown below, wherein the intensity at a retention time T.sub.i [min] is represented by P.sub.i [pA].
Measurement Conditions Concentration of an aqueous polyvinyl alcohol-based polymer solution: 0.1% by mass Injection volume of the aqueous polyvinyl alcohol-based polymer solution: 2 μL Column temperature: 50° C. Flow rate: 1.0 mL/min Eluent: a mixed solvent of water and methanol Eluent gradient conditions: the ratio of water and methanol in the eluent changes from 95:5 to 15:85 at a constant rate over a run time from minutes 0 to 10; and the ratio of water and methanol in the eluent is constant at 15:85 over a run time from minutes 10 to 15.

Formulae

T.sub.n=Σ(T.sub.i×P.sub.i)/Σ(P.sub.i)  Formula (1)

T.sub.w=Σ(T.sub.i.sup.2×P.sub.i)/Σ(T.sub.i×P.sub.i)  Formula (2)

{(T.sub.w/T.sub.n)−1}×1000  Formula (3)

The present disclosure relates generally to a support material for three-dimensional printing comprising a blend of at least two cellulose ethers or a blend of at least one cellulose ether and at least one vinyl pyrrolidone polymer. Additionally, the present disclosure relates to a shaped material and a three-dimensionally printed object comprising the support material. Furthermore, a process for producing a three-dimensional object using the support material is also disclosed.

The present disclosure relates generally to a support material for three-dimensional printing comprising a blend of at least two cellulose ethers or a blend of at least one cellulose ether and at least one vinyl pyrrolidone polymer. Additionally, the present disclosure relates to a shaped material and a three-dimensionally printed object comprising the support material. Furthermore, a process for producing a three-dimensional object using the support material is also disclosed.

The present application provides high solids film coating compositions comprising a water-soluble cellulose ether, hydroxy propyl cellulose (HPC), a poly (N-vinyl pyrrolidone-co-vinyl acetate) copolymer, a film-forming agent based on D-glucose, plasticizer, medium chain triglycerides (MCT) and an anti-tack agent. The invention further provides a process for preparing the above described film coating compositions and method of coating solid substrate with such coating compositions.

The present application provides high solids film coating compositions comprising a water-soluble cellulose ether, hydroxy propyl cellulose (HPC), a poly (N-vinyl pyrrolidone-co-vinyl acetate) copolymer, a film-forming agent based on D-glucose, plasticizer, medium chain triglycerides (MCT) and an anti-tack agent. The invention further provides a process for preparing the above described film coating compositions and method of coating solid substrate with such coating compositions.

A composite material containing aerogel particles and at least one cellulose-based resin selected from the group consisting of cellulose and a cellulose derivative, in which a content of the aerogel particles is 95 vol % or more. A sheet containing the composite material, and a heat insulator containing the composite material.