Patent application EP20178218A (EP), filed 2020-06-04
Publication number: EP3747962A1
Title: COATING COMPOSITION FOR APPLYING INKJET PRINTING THERETO TO FORM MARKED PREPARATION, PREPARATION MARKED WITH AQUEOUS INK, AND METHOD FOR PRODUCING MARKED PREPARATION
Abstract: [0001]    There are provided a coating composition for applying inkjet printing thereto to form a marked preparation, the composition providing good ink affinity, suppression of ink bleed, and excellent gloss; and others. More specifically, there are provided a composition for applying inkjet printing thereto to form a marked preparation, the composition including a water-soluble cellulose ether having a viscosity at 20°C of from 2 to 50.0 mPa·s, as determined in 2% by mass aqueous solution, polyvinyl alcohol, and a solvent, wherein a mass ratio of the water-soluble cellulose ether to the polyvinyl alcohol is from 99.0:1.0 to 55.0:45.0; a method for producing a preparation marked with aqueous ink, including a coating step of coating an object with the composition to form a coating layer, and a printing step of inkjet-printing on the coating layer with aqueous ink to obtain a preparation marked with aqueous ink; and others.
IPC codes: A61K  47/    32            A I
A61K  47/    38            A I
A61K   9/    28            A I
C09D 101/    26            A I
C09D  11/   322            A I
Claims: number: 1
text: A coating composition for applying inkjet printing thereto to form a marked preparation, the composition comprising:
number: 2
text: The coating composition according to claim 1, wherein the water-soluble cellulose ether is selected from the group consisting of an alkyl cellulose, a hydroxyalkyl cellulose, and a hydroxyalkyl alkyl cellulose.
number: 3
text: The composition according to claim 1 or claim 2, wherein the polyvinyl alcohol has a degree of saponification of 74.0 mol%.
number: 4
text: The composition according to any one of claims 1 to 3, wherein the solvent is selected from the group consisting of water and lower alcohols having 1 to 3 carbon atoms.
number: 5
text: A method for producing a preparation marked with aqueous ink, comprising:
number: 6
text: The method for producing a preparation marked with aqueous ink according to claim 5, wherein the object is a core comprising an active ingredient, and the preparation is a tablet.
number: 7
text: The method for producing a preparation marked with aqueous ink according to claim 5, wherein the object is a mold pin for capsule formation, the coating layer is a capsule shell, and the preparation is a capsule.
number: 8
text: The method for producing a preparation marked with aqueous ink according to claim 6 or claim 7, wherein the aqueous ink contains a pigment.
number: 9
text: A preparation marked with aqueous ink, the preparation comprising:
number: 10
text: The preparation marked with aqueous ink according to claim 9, wherein the water-soluble cellulose ether is selected from the group consisting of an alkyl cellulose, a hydroxyalkyl cellulose, and a hydroxyalkyl alkyl cellulose.
number: 11
text: The preparation marked with aqueous ink according to claim 9 or claim 10, wherein the polyvinyl alcohol has a degree of saponification of 74.0 mol%.
Office action: search_report, dated 2020-12-09
Rejection reasons: novelty_epc_54
inventive_step_epc_56
Prior art cited: ref_id: JP2015140414A
ref_type: patent
severity: background
ref_id: - "Hypromellose: hydroxypropyl methyl cellulose", JAPANESE PHARMACOPOEIA
ref_type: npl
severity: background
ref_id: JP2013253030A
ref_type: patent
severity: background
ref_id: EP3216807A1
ref_type: patent
severity: background
ref_id: US2007132823A1
ref_type: patent
severity: background
ref_id: US2007132823
ref_type: patent
severity: obviousness
ref_id: JP2013253030
ref_type: patent
severity: novelty_destroying
ref_id: EP3216807
ref_type: patent
severity: novelty_destroying
Final disposition: pending (2020-12-09)