Powder composition for paper manufacturing
AssigneeKao Corporation
InventorsYoshihito Hamada, Kazuo Kubota, Atsushi Hiraishi, Jun Kozuka, Takahiro Kawaguchi, Tsutomu Miyahara, Hiroshi Noro, Koichi Ohori, Haruyuki Sato
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Abstract
The powder composition for paper manufacturing of the invention contains a hydrophobic organic compound (A), an emulsifying and dispersing agent (B), and optionally water-soluble saccharides (C) added based on necessity and has an average particle diameter of 0.1 to 2,000 μm.
Claims19
A powder composition for paper manufacturing, comprising a hydrophobic organic compound (A) to be used as a paper manufacturing agent, an emulsifying and dispersing agent (B), and a water-soluble saccharide (C), wherein the powder composition has an average particle diameter of 0.1 to 2,000 μm, and wherein the hydrophobic organic compound (A) is at least one compound selected from the group consisting of the following groups (i) to (viii), and mixtures thereof:
- (i) organopolysiloxane compounds;
- (ii) amine compounds;
- (iii) amineacid salt compounds;
- (iv) quaternary ammonium compounds;
- (v) imidazole compounds;
- (vi) hydrocarbon compounds;
- (vii) alcohol compounds;
- and
- (viii) at least one compound having a carbonyl group and an alkyl group in a molecule and selected from the group consisting of the following groups (viii-a) to (viii-f), and mixtures thereof:
- (viii-a) aliphatic acids or their addition products of alkylene oxide having 2 to 4 carbon atoms;
- (viii-b) esters of aliphatic acids and alcohols or their addition products of alkylene oxide having 2 to 4 carbon atoms;
- (viii-c) aliphatic acid amides or their addition products of alkylene oxide having 2 to 4 carbon atoms;
- and
- (viii-d) aliphatic acid amideamines or their addition products of alkylene oxide having 2 to 4 carbon atoms.
(canceled)
A powder composition for paper manufacturing, comprising a hydrophobic organic compound (A) to be used as a paper manufacturing agent and an emulsifying and dispersing agent (B) being a polymer compound having at least one or more cationic group, wherein the powder composition has an average particle diameter of 0.1 to 2,000 μm, wherein the hydrophobic organic compound (A) is at least one compound selected from the group consisting of the following groups (i) to (viii), and mixtures thereof:
- (i) organopolysiloxane compounds;
- (ii) amine compounds;
- (iii) amineacid salt compounds;
- (iv) quaternary ammonium compounds;
- (v) imidazole compounds,
- (vi) hydrocarbon compounds;
- (vii) alcohol compounds;
- and
- (viii) at least one compound having a carbonyl group and an alkyl group in a molecule and selected from the group consisting of the following groups (viii-a) to (viii-f), and mixtures thereof:
- (viii-a) aliphatic acids or their addition products of alkylene oxide having 2 to 4 carbon atoms;
- (viii-b) esters of aliphatic acids and alcohols or their addition products of alkylene oxide having 2 to 4 carbon atoms;
- (viii-c) aliphatic acid amides or their addition products of alkylene oxide having 2 to 4 carbon atoms;
- and
- (viii-d) aliphatic acid amideamines or their addition products of alkylene oxide having 2 to 4 carbon atoms.
A bulking agent for paper comprising an ester compound (α) of a polyhydric alcohol and fatty acid and having an esterification ratio of OH of the polyhydric alcohol per 1 mole in a range of 10 to 95% by equivalent, HLB 1 to 14, and a melting point 100° C. or lower and a copolymer (β) comprising composing units derived from at least one kind of non-ionic monomers having a dissolution parameter of 20.5 (MPa)1/2 or lower and at least one kind of cationic monomers, wherein the content of (α) in the total of (α) and (β) is 80 to 99.9% by weight.
A bulking agent for paper comprising an ester compound (α) of a polyhydric alcohol and fatty acid and having an esterification ratio of OH of the polyhydric alcohol per 1 mole in a range of 10 to 95% by equivalent, HLB 1 to 14, and a melting point 100° C. or lower and a copolymer (β) comprising composing units derived from at least one kind of a non-ionic monomer having a dissolution parameter of 20.5 (MPa)1/2 or lower and at least one kind of cationic monomers, wherein the contents of (α) and (β) are 80 to 99.9% by weight for (α) and 0.1 to 20% by weight for (β).
A paper manufacturing chemical agent particle, comprising an oil chemical agent for paper manufacturing in the form of oil droplets and enclosed in a water-soluble solid matrix in a dispersed state.
A method of producing a paper manufacturing chemical agent particle, comprising dissolving a water-soluble solid matrix forming agent in water at a temperature equal to or higher than the melting point of an oil chemical agent for paper manufacturing;
- adding the oil chemical agent for paper manufacturing and optionally an emulsifying substance;
- emulsifying the oil chemical agent for paper manufacturing for obtaining an emulsion;
- and drying the emulsion at a temperature equal to or higher than the melting point of the oil chemical agent for paper manufacturing.
Dependencies are inferred from the claim text.