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1. WO2007142280 - HYDROGEL SHEET AND PRODUCTION METHOD THEREOF

Publication Number WO/2007/142280
Publication Date 13.12.2007
International Application No. PCT/JP2007/061500
International Filing Date 31.05.2007
IPC
A61K 47/32 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
47Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
30Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
32Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. carbomers
A61K 8/02 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
02characterised by special physical form
A61K 8/73 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
72containing organic macromolecular compounds
73Polysaccharides
A61K 8/81 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
72containing organic macromolecular compounds
81obtained by reactions involving only carbon-to-carbon unsaturated bonds
A61K 9/70 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
70Web, sheet or filament bases
A61K 47/38 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
47Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
30Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
36Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
38Cellulose; Derivatives thereof
CPC
A61K 2800/244
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
2800Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
20Chemical, physico-chemical or functional or structural properties of the composition as a whole
24Thermal properties
244Endothermic; Cooling; Cooling sensation
A61K 47/32
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
47Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
30Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
32Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. carbomers ; , poly(meth)acrylates, or polyvinyl pyrrolidone
A61K 47/38
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
47Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
30Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
36Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
38Cellulose; Derivatives thereof
A61K 8/0208
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
02characterised by special physical form
0208Tissues; Wipes; Patches
A61K 8/042
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
02characterised by special physical form
04Dispersions; Emulsions
042Gels
A61K 8/731
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
72containing organic macromolecular compounds
73Polysaccharides
731Cellulose; Quaternized cellulose derivatives
Applicants
  • SHIN-ETSU CHEMICAL CO., LTD. [JP]/[JP] (AllExceptUS)
  • YAMASHITA, Makoto [JP]/[JP] (UsOnly)
  • MARUYAMA, Naosuke [JP]/[JP] (UsOnly)
  • HAYAKAWA, Kazuhisa [JP]/[JP] (UsOnly)
Inventors
  • YAMASHITA, Makoto
  • MARUYAMA, Naosuke
  • HAYAKAWA, Kazuhisa
Agents
  • OKUYAMA, Shoichi
Priority Data
2006-15137331.05.2006JP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) HYDROGEL SHEET AND PRODUCTION METHOD THEREOF
(FR) FEUILLE D'HYDROGEL ET SON PROCÉDÉ DE FABRICATION
Abstract
(EN)
Provided is a hydrogel sheet being excellent in strength and flexibility and having high water content in spite of comprising a smaller amount of polymer material; and a method for producing a hydrogel sheet which is convenient and has high productivity. More specifically, provided is a hydrogel sheet comprising (methyl vinyl ether/maleic acid) crosspolymer, low-substituted cellulose ether and water wherein the low-substituted cellulose ether has a molar substitution degree of 0.05 to 1.0 per an anhydrous glucose unit and is insoluble in water but soluble in an aqueous alkali solution.
(FR)
La présente invention concerne une feuille d'hydrogel ayant une résistance et une flexibilité excellentes et présentant une teneur élevée en eau bien qu'elle comprenne une quantité faible de matériau polymère, ainsi qu'un procédé commode et productif de production d'une feuille d'hydrogel. L'invention concerne plus spécifiquement une feuille d'hydrogel comprenant un polymère réticulé de (méthylvinyléther/acide maléique), un éther de cellulose faiblement substitué et de l'eau, l'éther de cellulose faiblement substitué présentant un degré de substitution molaire compris entre 0,05 et 1,0 par unité de glucose anhydre et étant insoluble dans l'eau mais soluble dans une solution aqueuse alcaline.
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