Patent application EP17171949A (EP), filed 2017-05-19
Publication number: EP3248593A1
Title: METHOD OF PRODUCING TRANSDERMAL ABSORPTION SHEET
Abstract: A method of producing a transdermal absorption sheet includes: filling needle-like recessed portions (15) on a mold (13) having the needle-like recessed portions (15) with a polymer solution; drying the filled polymer solution (24, 124) to form a polymer layer (28); and peeling off the polymer layer (28), wherein, in drying the polymer solution, low rate drying conditions are set in a concentration range in which an average solid content concentration of the polymer solution (24, 124) is 70 wt% to 80 wt%. When a constant drying rate of water is used as an index, in the concentration range in which the average solid content concentration of the polymer solution (24, 124) is 70 wt% to 80 wt%, and the constant drying rate is lower than a maximum value of a constant drying rate under a drying condition where the average solid content concentration of the polymer solution (24, 124) is less than 70 wt% and more than 80 wt%.
IPC codes: A61K  47/    36            A I
A61K  47/    38            A I
A61K   9/    00            A I
A61K   9/    70            A I
Claims: number: 1
text: A method of producing a transdermal absorption sheet comprising, in this order:
number: 2
text: The method of producing a transdermal absorption sheet according to claim 1,
number: 3
text: The method of producing a transdermal absorption sheet according to claim 1 or 2,
number: 4
text: The method of producing a transdermal absorption sheet according to any one of claims 1 to 3, further comprising
number: 5
text: The method of producing a transdermal absorption sheet according to claim 4, further comprising
number: 6
text: The method of producing a transdermal absorption sheet according to any one of claims 1 to 3,
number: 7
text: The method of producing a transdermal absorption sheet according to any one of claims 1 to 5,
number: 8
text: The method of producing a transdermal absorption sheet according to any one of claims 1 to 6,
number: 9
text: The method of producing a transdermal absorption sheet according to any one of claims 1 to 7,
number: 10
text: The method of producing a transdermal absorption sheet according to any one of claims 1 to 8,
Office action: search_report, dated 2017-11-29
Rejection reasons: novelty_epc_54
Prior art cited: ref_id: JP2008245955A
ref_type: patent
severity: background
ref_id: EP2921201A1
ref_type: patent
severity: background
ref_id: JP2011245055A
ref_type: patent
severity: background
ref_id: JP2015217043A
ref_type: patent
severity: background
ref_id: EP3144030A1
ref_type: patent
severity: background
ref_id: JP2011245055
ref_type: patent
severity: novelty_destroying
ref_id: EP2921201
ref_type: patent
severity: novelty_destroying
ref_id: JP2015217043
ref_type: patent
severity: novelty_destroying
ref_id: EP3144030
ref_type: patent
severity: background
Final disposition: pending (2017-11-29)