Search

JP-7856766-B2 - low moisture composition

JP7856766B2JP 7856766 B2JP7856766 B2JP 7856766B2JP-7856766-B2

Inventors

  • リンチ、マシュー・ローレンス
  • イリー、ブランドン・フィリップ
  • ウィリアムズ、クリスティン・レドリック
  • マクロウ、ジョスリン・ミッチェル
  • アイベリ、ヴィグター
  • ハフォード、カレン・ダイアナ

Assignees

  • ザ プロクター アンド ギャンブル カンパニー

Dates

Publication Date
20260511
Application Date
20230808
Priority Date
20220812

Claims (16)

  1. A low-moisture composition, 1) A water-soluble solid composition (SDC) domain comprising a crystallizing agent and 10% by weight or less of water , 2) At least one polyethylene glycol (PEGC) domain, 3) Contains freshness-enhancing agents, The low-moisture composition has a water content of less than 10% by weight. The crystallizing agent is a sodium salt of a saturated fatty acid having 8 to 12 carbon atoms. The freshness-enhancing agent is present in at least one of the SDC or PEGC. A low-moisture composition wherein the sodium salt of the saturated fatty acid in the crystallizing agent comprises 50% to 70% by weight of C12, 15% to 25% by weight of C10, and 15% to 25% by weight of C8 .
  2. The low-moisture composition according to claim 1, wherein the sodium salt of the saturated fatty acid has 50% to 70 % delayed Ca%, and the delayed Ca% is the weight percentage of NaC12 in a mixture of NaC12, NaC10, and NaC8 .
  3. The low-moisture composition according to claim 1 or 2, wherein the crystallizing agent in the SDC domain is in the form of a fiber determined by a fiber testing method.
  4. The low-moisture composition according to claim 1 or 2, wherein the freshness beneficial agent is at least one of a fragrance or an odor neutralizer.
  5. The low-moisture composition according to claim 1 or 2, wherein the freshness beneficial agent is a neat fragrance.
  6. The aforementioned freshness-enhancing agents include 3-(4-t-butylphenyl)-2-methylpropanal, 3-(4-t-butylphenyl)-propanal, 3-(4-isopropylphenyl)-2-methylpropanal, 3-(3,4-methylenedioxyphenyl)-2-methylpropanal, and 2,6-dimethyl-5-heptenal, α-damascone, β-damascone, γ-damascone, β-damascenone, and 6,7-dihydro-1,1,2,3,3-pentamethyl The low-moisture composition according to claim 1 or 2, comprising at least one of the following: -4(5H)-indanone, methyl-7,3-dihydro-2H-1,5-benzodioxepin-3-one, 2-[2-(4-methyl-3-cyclohexenyl-1-yl)propyl]cyclopentan-2-one, 2-sec-butylcyclohexanone, and β-dihydroionone, linalool, ethyllinalool, tetrahydrolinalool, dihydromyrcenol, or a mixture thereof.
  7. The low-moisture composition according to claim 4 , wherein the fragrance is enclosed in a capsule having a wall and a core.
  8. The low-moisture composition according to claim 7, wherein the wall comprises at least one of melamine, polyacrylamide, silicone, silica, polystyrene, polyurea, polyurethane, polyacrylate-based materials, polyacrylate ester-based materials, gelatin, styrene-malic anhydride, polyamide, aromatic alcohol, polyvinyl alcohol, or a mixture thereof.
  9. The low-moisture composition according to claim 1 or 2 , wherein the freshness beneficial agent is a mixture of neat fragrance and fragrance capsules.
  10. The low-moisture composition according to claim 7, wherein the fragrance capsule is present in an amount of 0.05% to 20 % by weight of the composition.
  11. The low-moisture composition according to claim 1 or 2, wherein the crystallizing agent is present in an amount of 70 % to 95% by weight of the low-moisture composition.
  12. The low-moisture composition according to claim 9 , wherein the neat fragrance constitutes 0.01 % to 25 % by weight based on the total weight of the low-moisture composition.
  13. The low-moisture composition according to claim 1 or 2, wherein the PEGC comprises a PEG having a molecular weight of 200 to 50,000 daltons.
  14. The low-moisture composition according to claim 1 or 2, wherein the low-moisture composition is composed of particles.
  15. The low-moisture composition according to claim 14, wherein the particles are a physical mixture of particles composed of SDC domains and particles composed of PEGC domains.
  16. A method for producing a low-moisture composition, a) Mixing and heating the crystallizing agent and the aqueous phase until the crystallizing agent is substantially solubilized to form a solid soluble composition mixture ( SDCM), and then cooling the SDCM to the temperature before significant crystallization of the crystallizing agent, b) Cooling the solid soluble composition mixture to below the crystallization temperature and crystallizing the solid soluble composition mixture into a rheological solid composition to form a water-soluble solid composition ( SDC ) in the designed shape and size, c) Drying and removing excess water, and removing 90 % to 99% of the water determined by the moisture content test method from the rheological solid composition to produce a water-soluble solid composition (SDC) having an average solubility percentage of more than 5% at 37°C as determined by the dissolution test method, e) To provide polyethylene glycol (PEGC), f) Combining the SDC and PEGC to produce a low-moisture composition having SDC domains and PEGC domains, The crystallizing agent is a sodium salt of a saturated fatty acid having 8 to 12 carbon atoms, and the sodium salt of the saturated fatty acid of the crystallizing agent comprises 50% to 70% by weight of C12, 15% to 25% by weight of C10, and 15% to 25% by weight of C8. A method comprising adding a freshness-enhancing agent to at least one of the SDC domain or the PEGC domain.

Description

A low-moisture composition comprising a water-soluble solid composition (SDC) containing a mesh microstructure formed from a dried sodium fatty acid carboxylate compound, polyethylene glycol domains (PEGC), and a freshness-enhancing agent, which dissolves during normal use and delivers remarkable freshness to fabrics. Freshness beads are added directly to the washing machine drum to supply freshness to the wash cycle. In the most basic design, the beads consist of a “primary” carrier (e.g., PEG, different molecular weights) and a freshness-enhancing agent for delivering the freshness effect (e.g., fragrance capsules, neat fragrance). A suitable base composition is disclosed, for example, in U.S. Patent No. 8,476,219 (B2). In more advanced designs, the beads also consist of one or more “secondary” carriers (often called fillers) dispersed in the primary carrier to fulfill one or more specific functions in the beads. For example, in one disclosure (U.S. Patent No. 9,347,022 (B1)), starch granules are added to the PEG in the beads to reduce the cost of the beads. In another disclosure (International Publication No. 2021/170759 (A1)), polymers, inorganic salts, clays, sugars, polysaccharides, glycerol, and fatty alcohols are added to facilitate processing and increase stability. In yet another example, the beads are composed of a “primary” carrier comprising salts and sugars, sodium acetate trihydrate, and a block copolymer, as disclosed in U.S. Patent No. 11,008,535 (B2), U.S. Patent No. 11,220,657 (B2), and U.S. Patent No. 10,683,475 (B2), respectively. Formulating effective solid-soluble compositions presents considerable challenges. The composition must be physically stable, preferably temperature and humidity resistant, and furthermore, it must be able to dissolve in solution, leaving little to no material residue, thereby performing the desired function. Solid-soluble compositions are well known in the art and are used in several roles, including detergents, oral and body medications, disinfectants, and cleaning compositions. It is remarkable that a water-soluble solid composition (SDC) having a mesh microstructure formed from dried sodium fatty acid carboxylate, which may contain high concentrations of active substances, can be created that readily solubilizes in water under laundry washing conditions, yet is temperature and humidity resistant, enabling supply chain stability. Low-moisture compositions having both PEGC and SDC domains have been found to offer significant advantages over current freshness beads, including improved dissolution rate, sustainability, expanded fragrance range, moisture control, wider sourcing opportunities, cost reduction, lighter weight for efficient e-commerce transport, and protection of incompatible chemicals. U.S. Patent No. 8,476,219 (B2)U.S. Patent No. 9,347,022 (B1)International Publication No. 2021/170759 (A1)U.S. Patent No. 11,008,535 (B2)U.S. Patent No. 11,220,657 (B2)U.S. Patent No. 10,683,475 (B2) This specification concludes with claims that describe in detail and explicitly claim the subject matter to be considered as the disclosure, but a deeper understanding of the disclosure can be gained by reading the following explanatory text in conjunction with the accompanying drawings. Some drawings have been simplified by omitting selected elements for the purpose of more clearly illustrating other elements. Such omission of elements in some drawings does not necessarily indicate the presence or absence of elements in any of the exemplary embodiments, unless explicitly stated in the corresponding written description. None of the drawings are necessarily to a certain scale. The image shows a scanning electron microscope (SEM) photograph of the crystallizing agent crystal. This image shows a scanning electron microscope (SEM) of a mesh microstructure prepared from a crystallized crystallizing agent in the SDC domain. Scanning electron microscope (SEM) images of viable fragrance capsules (e.g., Red Arrow, top) dispersed within the mesh microstructure of SDC domains are shown. This image shows a scanning electron microscope (SEM) of fragrance capsules dispersed within the mesh microstructure of the SDC domain. This graph shows the amount of fragrance in the headspace on a dry and rubbed fabric treated with a viable amount of a commercially available product (approximately 1 gram of fragrance capsule, heap cap) versus the composition of the present invention (approximately 2.5 grams of fragrance capsule, 1/2 cap). The composition of the present invention has a much larger amount of fragrance in the air, and a much smaller amount of product is added to the wash. This shows the dissolution behavior of SDC prepared using different combinations of crystallizing agents in commercially available PEG, as determined by dissolution test methods. This shows the dissolution behavior of SDC prepared using different combinations of crystallizing agents in commercially available PEG, a