Abstract: It is made possible to promptly determine an accurate parting line. Two-dimensional projection means produces two-dimensional projection data by projecting edges of a product shape represented by three-dimensional graphic data onto a plane perpendicular to a mold opening direction. Parting line determination means sequentially determines, out of candidate edges contiguous to a determined parting line already determined as parting line, a candidate edge forming a largest interior angle with the determined parting line at a contact point therewith on the two-dimensional projection data, as the parting line. This makes it possible to determine a parting line of a mold for molding the product shape represented by the three-dimensional graphic data.

Abstract: A blood collecting apparatus comprises a blood collecting needle 152; the blood collecting bag, a first tube whose one end communicates with the blood collecting bag and other end communicates with the blood collecting needle, the branch portion provided on a portion of the first tube, a second tube connected with the branch portion at one end thereof and having a blood take-out port (sampling port); and a flexible resin bag including a third tube communicating with the second tube. The flexible resin bag is capable of accommodating air inside a part of the first tube between the branch portion and the blood collecting needle and air inside the second tube when the blood collecting apparatus is used.

Abstract: A blood collecting apparatus comprises a blood collecting needle 152; the blood collecting bag, a first tube whose one end communicates with the blood collecting bag and other end communicates with the blood collecting needle, the branch portion provided on a portion of the first tube, a second tube connected with the branch portion at one end thereof and having a blood take-out port (sampling port); and a flexible resin bag including a third tube communicating with the second tube. The flexible resin bag is capable of accommodating air inside a part of the first tube between the branch portion and the blood collecting needle and air inside the second tube when the blood collecting apparatus is used.

Abstract: It is made possible to promptly determine an accurate parting line. Two-dimensional projection means produces two-dimensional projection data by projecting edges of a product shape represented by three-dimensional graphic data onto a plane perpendicular to a mold opening direction. Parting line determination means sequentially determines, out of candidate edges contiguous to a determined parting line already determined as parting line, a candidate edge forming a largest interior angle with the determined parting line at a contact point therewith on the two-dimensional projection data, as the parting line. This makes it possible to determine a parting line of a mold for molding the product shape represented by the three-dimensional graphic data.

Abstract: A remover unit for use in a circuit for removing at least leukocyte from blood or blood preparations, which comprises a remover includes a housing having a blood inlet, a blood outlet, and a filter interposed between the blood inlet and the blood outlet, and at least one air vent having a cap for opening and closing the air vent to ambient atmosphere. With the air vents having such a cap, the removal of air in the course of priming the remover, the operation of starting or stopping filtration, the recovery of residual liquids in the remover and the removal of air from the recovery bag can be facilitated. The filter includes a three-dimensionally reticular, porous member with continuous open pores having a most frequent pore diameter to a number average pore diameter ranging from 1.5 to 2.5.

Abstract: A leukocyte remover includes a housing having a blood inlet, a blood outlet, and a leukocyte-separating filter disposed in the housing such that it partitions the interior of the housing into a blood inlet portion and a blood outlet portion. The leukocyte filter is composed of one or more three-dimensionally reticular, porous members with continuous open pores having a most frequent pore diameter of 1 .mu.m to 5 .mu.m and a ratio of a weight-average pore diameter to a number-average pore diameter in the range of 1.5 to 2.5.

Abstract: A filter for the purification of platelets by dint of selective removal of leucocytes as extraneous matter from blood components, which filter has as a main part thereof a porous body possessing a three-dimensional reticularly continuous texture containing continuous open pores 6 to 12 .mu.m in average diameter and allowing substantially no presence of acute projection inside said pores.

Abstract: A coated metal pipe which comprises a pipe coated with a composition comprising2 to 40 wt. parts of low molecular weight oxidized polymer of polypropylene or propylene-ethylene copolymer;5 to 40 wt. parts of a rubber component selected from a group consisting of styrene-butadiene copolymer, polyisoprene, butyl rubber, chlorosulfonic polyethylene and polyisobutylene;5 to 50 wt. parts of a tackifier and 10 to 80 wt. parts of asphalt.

Abstract: A heat printing sheet having a pattern of a hot melt ink composition on a base, the improvement comprising using a hot melt ink composition which comprises 5-60 wt. parts of a base polymer of ethylene-vinyl acetate copolymer having 5-50 wt. % of the vinyl acetate content and 4-1000 g/10 min. of a melt index or a mixture of said ethylene-vinyl acetate substituted with 10-60 wt. % of the other polymer; and 20-80 wt. parts of a tackifier selected from terpene resins, hydrogenated dicyclopentadiene resins, lower styrene resins, rosins, rosin polyol esters, hydrogenated rosin and rosin polyol esters and alicyclic hydrocarbon resins and 0.1-30 wt. parts of a pigment or dye, and the hot melt ink composition is melted at 80.degree.-250.degree. C and is coated on an engraved roll and is instantaneously printed on a base of synthetic polymer film having 10-100 of a thickness and smooth surface under 0.5-10 Kg/cm.sup.2 (gauge) to form the pattern of the hot melt ink composition having 10-3000 of a thickness.

Abstract: The present invention is concerned with a method and apparatus which blend components of a thermoplastic resin composition in an extruder having a cylindrical body, a screw, and a heating means, wherein the cylindrical body has a large bore part, a tapered part, and a small bore part, and the screw has a large diameter flight, a tapered flight, and a small diameter flight which is fitted within the cylindrical body. The tapered flight has free pass recesses, if desirable, and the roughness of the inner surface of the cylindrical body and/or roughness of the outer surface of the flight of screw are decreased as one proceeds in the direction from the small bore part to the outlet.

Abstract: A coated metal pipe which comprises a pipe coated with a composition comprising 5-30 wt parts of ethylene-vinylacetate copolymer having a vinylacetate content of 15-40 wt% and a melt index of 1-1,000 g/10 min; 2-20 wt parts of low molecular weight oxidized polymer of polypropylene or propylene-ethylene copolymer; 5-40 wt parts of styrene butadiene copolymer; 5-50 wt parts of a tackifier and 10-80 wt parts of asphalt.

Abstract: A heat printing sheet is prepared by coating a base with a molten printing composition which comprises 10 - 60% by weight of at least one tackifier selected from the group consisting of terpene resins, hydrogenated cyclopentadiene resins, cumarone-indene resins, phenol resins, styreneolefin copolymers, .alpha.-methylstyrene-vinyltoluene copolymers, rosins, polyol esters, hydrogenated rosins, hydrogenated rosin-polyol esters and rosin; 5 - 50% by weight of at least one wax selected from the group consisting of plant wax, petroleum wax, coal wax, synthetic wax; 10 - 60% by weight of an ethylene-vinyl acetate copolymer which contains 5 - 50% by weight of a vinylacetate component and which has a melt index of 4 - 1000 g/10 min, 5 - 40% by weight of a filler which is bendable with said tackifier, wax or ethylene-vinylacetate copolymer; and a pigment.

Abstract: A blood collecting apparatus comprises a blood collecting needle 152; the blood collecting bag, a first tube whose one end communicates with the blood collecting bag and other end communicates with the blood collecting needle, the branch portion provided on a portion of the first tube, a second tube connected with the branch portion at one end thereof and having a blood take-out port (sampling port); and a flexible resin bag including a third tube communicating with the second tube. The flexible resin bag is capable of accommodating air inside a part of the first tube between the branch portion and the blood collecting needle and air inside the second tube when the blood collecting apparatus is used.

Abstract: A blood collecting apparatus comprises a blood collecting needle 152; the blood collecting bag, a first tube whose one end communicates with the blood collecting bag and other end communicates with the blood collecting needle, the branch portion provided on a portion of the first tube, a second tube connected with the branch portion at one end thereof and having a blood take-out port (sampling port); and a flexible resin bag including a third tube communicating with the second tube. The flexible resin bag is capable of accommodating air inside a part of the first tube between the branch portion and the blood collecting needle and air inside the second tube when the blood collecting apparatus is used.