In order to provide a packing/plugging device capable of handling a wide variety of vessels and fillings of different properties (liquid and powder) by the device alone, this device is provided with: a rotary table 1 comprising an upper table 11 on which claw members 21 disposed on one side of respective claw members 2 for sandwiching a vessel V are arranged at regular angular intervals and a lower table 12 on which claw members 22 disposed on the other side are arranged at regular angular intervals and which is disposed over the upper table 11; rotary drive mechanisms 3 for performing sandwiching and releasing of the vessels V and conveyance of the vessels V sandwiched by the claw members 2 by independently driving the upper table 11 and the lower table 12 of the rotary table 1 to rotate; a filling packing mechanism 5 for packing a filling into the vessels V at a predetermined rotational position of the rotary table 1; a plugging mechanism 6 for plugging, at a predetermined rotational position of the rotary table 1, the vessels V in which the filling is packed; and a measuring mechanism 7 for measuring the weights of the vessels V before and after the filling is packed therein.
In order to provide a film heating/molding device of a blister packaging machine with which it is possible to perform molding without extreme reduction in the sheet thickness of a pocket upper-surface portion, adopt a configuration of superposition without warping, and conduct stable molding at high speed, the present invention is configured so that a compressed-air injection mechanism disposed on a mold 5A side comprises a compressed-air injection hole 53a that opens in the inner bottom part of a pocket hole 52 in the mold 5A, and a compressed-air injection hole 53b that opens in the periphery of the pocket hole 52 in the mold 5A.
B65B 47/08 - Appareils ou dispositifs pour former des poches ou des récipients dans ou à partir de feuilles, flans ou bandes, comprenant essentiellement une matrice dans laquelle le matériau est pressé ou une matrice de pliage à travers laquelle le matériau se déplace par application de pression exercée par un fluide
B29C 51/10 - Formage par une différence de pression, p. ex. sous vide
B65B 11/52 - Enserrage d'objets ou de quantités de matériau en plaçant le contenu entre deux feuilles, p. ex. des feuilles comportant des poches, et en fixant ensemble leurs bords libres opposés une des feuilles étant rendue plastique, p. ex. par chauffage, et forcée par la pression exercée par un fluide, p. ex. à l'aide du vide, à s'engager avec l'autre feuille et avec le contenu, p. ex. emballage sous peau
B65B 47/02 - Appareils ou dispositifs pour former des poches ou des récipients dans ou à partir de feuilles, flans ou bandes, comprenant essentiellement une matrice dans laquelle le matériau est pressé ou une matrice de pliage à travers laquelle le matériau se déplace avec des moyens pour chauffer le matériau avant le formage
3.
Method for producing polylactic acid block copolymer
It is an object of the present invention to provide a method for producing a polylactic acid block copolymer having high molecular weight, and in lower cost, wherein only a stereo-complex crystal is capable of growing, even when heat melting process is repeated. The present invention relates to a method for producing a polylactic acid block copolymer characterized in that (i) ring-opening polymerization of D-lactide (D component) is carried out in the presence of poly-L-lactic acid (L component), or (ii) ring-opening polymerization of L-lactide (L component) is carried out in the presence of poly-D-lactic acid (D component), and mass ratio of the D component and the L component is the D component/the L component=60/40 to 91/9, or the L component/the D component=60/40 to 91/9.
Provided are: a polylactic acid composition having extremely good molding processability; and a method for producing the same. A polylactic acid composition comprising poly-L-lactic acid and a polylactic acid block copolymer in which the mass ratio of an L-lactic acid unit to a D-lactic acid unit is from 50/50 to 91/9 (L-lactic acid unit/D-lactic acid unit); a polylactic acid composition comprising poly-D-lactic acid and a polylactic acid block copolymer in which the mass ratio of an L-lactic acid unit to a D-lactic acid unit is from 49/51 to 9/91 (L-lactic acid unit/D-lactic acid unit); and a method for producing the same.
A process for producing a polylactic acid block copolymer which has a high molecular weight, has a lower cost, and is capable of growing stereocomplex crystals only even when repeatedly heated/melted. The process for polylactic acid block copolymer production is characterized in that (i) D-lactide (ingredient D) is polymerized by ring-opening polymerization in the presence of poly-L-lactic acid (ingredient L) or (ii) L-lactide (ingredient L) is polymerized by ring-opening polymerization in the presence of poly-D-lactic acid (ingredient D) and that the ratio between the mass of the ingredient (D) and that of the ingredient (L) is such that ingredient (D)/ingredient (L) is from 60/40 to 91/9 or ingredient (L)/ingredient (D) is from 60/40 to 91/9.
C08G 63/06 - Polyesters dérivés soit d'acides hydroxycarboxyliques, soit d'acides polycarboxyliques et de composés polyhydroxylés dérivés des acides hydroxycarboxyliques
C08L 101/16 - Compositions contenant des composés macromoléculaires non spécifiés les composés macromoléculaires étant biodégradables
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