The present disclosure provides a heat sealing aqueous resin composition containing: a rosin resin (A); a biodegradable resin (B) including a resin having a structure of General Formula (1) and/or a resin (b1) having a structure of General Formula (2); and a polyvinyl alcohol (C) in which an average saponification degree is 75 mol % or more and 85 mol % or less, in which a content of the component (b1) is more than 50% by mass when a total content of the component (A) and the component (B) is 100% by mass.

—O—(CH.sub.2).sub.x—O—CO—(CH.sub.2).sub.y—CO—  General Formula (1): (in General Formula (1), x and y may be different from each other, and are integers of 1 or more and 10 or less)

—O—(CH.sub.2).sub.z—CO—  General Formula (2): (in General Formula (2), z is an integer of 3 or more and 10 or less)

The present disclosure provides a heat sealing aqueous resin composition containing: a rosin resin (A); a biodegradable resin (B) including a resin having a structure of General Formula (1) and/or a resin (b1) having a structure of General Formula (2); and a polyvinyl alcohol (C) in which an average saponification degree is 75 mol % or more and 85 mol % or less, in which a content of the component (b1) is more than 50% by mass when a total content of the component (A) and the component (B) is 100% by mass.

—O—(CH.sub.2).sub.x—O—CO—(CH.sub.2).sub.y—CO—  General Formula (1): (in General Formula (1), x and y may be different from each other, and are integers of 1 or more and 10 or less)

—O—(CH.sub.2).sub.z—CO—  General Formula (2): (in General Formula (2), z is an integer of 3 or more and 10 or less)

The invention provides a methyl cellulose slurry for a meat-like protein processed food product having higher elasticity than a conventional one and having little variation in quality and a meat-like protein processed food product using the methyl cellulose slurry. By retaining a slurry containing methyl cellulose dissolved in water in a temperature zone of 0 to 5° C. for 10 hours or more, a methyl cellulose slurry for a meat-like protein processed food product having higher elasticity than a conventional one and having little variation in quality can be provided. Moreover, by using the methyl cellulose slurry, a meat-like protein processed food product having higher elasticity than a conventional one and having little variation in quality can be provided.

Aqueous suspensions are presented that are stable against settling without additional mixing in which the suspensions comprise a water soluble polymer that is anionic or non-ionic comprising a blend of water with at least about 32 wt % chloride salt with a counter ion A.sup.+a with 2≤a, from about 1 wt % to about 10 wt % particulate polyethylene glycol having an average molecular weight from about 1600 g/mol to about 50,000 g/mol, and from about 10 wt % to about 50 wt % of the water soluble polymer that is not a polyether. The suspensions have chlorides in a sufficient amount to inhibit hydration of the suspended water soluble polymer and the particulate polyethylene glycol. The aqueous suspension can be formed by adding a powder of polyethylene glycol to a high salt solution and then adding the high molecular weight polymer. The aqueous suspensions can be useful as friction reducing agents in flowing liquids, such as for hydraulic fracture.

Aqueous suspensions are presented that are stable against settling without additional mixing in which the suspensions comprise a water soluble polymer that is anionic or non-ionic comprising a blend of water with at least about 32 wt % chloride salt with a counter ion A.sup.+a with 2≤a, from about 1 wt % to about 10 wt % particulate polyethylene glycol having an average molecular weight from about 1600 g/mol to about 50,000 g/mol, and from about 10 wt % to about 50 wt % of the water soluble polymer that is not a polyether. The suspensions have chlorides in a sufficient amount to inhibit hydration of the suspended water soluble polymer and the particulate polyethylene glycol. The aqueous suspension can be formed by adding a powder of polyethylene glycol to a high salt solution and then adding the high molecular weight polymer. The aqueous suspensions can be useful as friction reducing agents in flowing liquids, such as for hydraulic fracture.

Provided is a particle suitable for a specimen test, which has high sensitization efficiency in a reaction with an antibody, shows high detection sensitivity as a latex reagent, hardly agglutinates during its storage, and hardly causes nonspecific adsorption even when not post-coated. The particle is a particle including a copolymer containing a monomer unit derived from a styrene-based monomer and a monomer unit derived from a glycidyl group-containing monomer, the particle being represented by the following general formula (1): ##STR00001##
in the general formula (1), L.sub.1 represents a copolymer moiety containing the monomer unit derived from the styrene-based monomer and the monomer unit derived from the glycidyl group-containing monomer, “n” represents from 4 to 11, and R.sup.1 and R.sup.2 each represent a hydrogen atom, an alkyl group, or a halogen.

Provided is a particle suitable for a specimen test, which has high sensitization efficiency in a reaction with an antibody, shows high detection sensitivity as a latex reagent, hardly agglutinates during its storage, and hardly causes nonspecific adsorption even when not post-coated. The particle is a particle including a copolymer containing a monomer unit derived from a styrene-based monomer and a monomer unit derived from a glycidyl group-containing monomer, the particle being represented by the following general formula (1): ##STR00001##
in the general formula (1), L.sub.1 represents a copolymer moiety containing the monomer unit derived from the styrene-based monomer and the monomer unit derived from the glycidyl group-containing monomer, “n” represents from 4 to 11, and R.sup.1 and R.sup.2 each represent a hydrogen atom, an alkyl group, or a halogen.

Provided is a process for reducing the size of ethylcellulose polymer particles comprising (a) providing a slurry comprising (i) water (ii) said ethylcellulose particles, wherein said ethylcellulose polymer particles have D50 of 100 μm or less; (iii) surfactant comprising 1.2% or more anionic surfactants by weight based on the solid weight of said slurry, with the proviso that if the amount of anionic surfactant is 2.5% or less by weight based on the solid weight of said slurry, then said surfactant further comprises 5% or more stabilizers by weight based on the solid weight of said slurry, wherein said stabilizer is selected from the group consisting of water-soluble polymers, water-soluble fatty alcohols, and mixtures thereof. (b) grinding said slurry in an agitated media mill having a collection of media particles having a median particle size of 550 μm or smaller.

Also provided is a dispersion made by such a process.

Provided is a process for reducing the size of ethylcellulose polymer particles comprising (a) providing a slurry comprising (i) water (ii) said ethylcellulose particles, wherein said ethylcellulose polymer particles have D50 of 100 μm or less; (iii) surfactant comprising 1.2% or more anionic surfactants by weight based on the solid weight of said slurry, with the proviso that if the amount of anionic surfactant is 2.5% or less by weight based on the solid weight of said slurry, then said surfactant further comprises 5% or more stabilizers by weight based on the solid weight of said slurry, wherein said stabilizer is selected from the group consisting of water-soluble polymers, water-soluble fatty alcohols, and mixtures thereof. (b) grinding said slurry in an agitated media mill having a collection of media particles having a median particle size of 550 μm or smaller.

Also provided is a dispersion made by such a process.

Provided is a polylactic-acid-containing aqueous dispersion capable of forming a transparent film at room temperature. A polylactic-acid-containing aqueous dispersion contains (1) polylactic acid; (2) at least one plasticizer selected from the group consisting of dimethyl adipate, diethyl adipate, dipropyl adipate, diisopropyl adipate, dibutyl adipate, diallyl adipate, bis(2-butoxyethyl) adipate, bis(2-methoxyethyl) adipate, dimethyl succinate, dimethyl glutarate, diethyl sebacate, diisopropyl sebacate, and mixtures thereof; (3) at least one dispersion stabilizer selected from the group consisting of cationic polymers, anionic polymers, polyvinyl alcohols, and non-ionic surfactants; and (4) water.