Title:
ガラス小瓶の製造方法
Document Type and Number:
Japanese Patent JP6567516
Kind Code:
B2
Abstract:
A method for producing glass vials, in particular pharmaceutical vials or pharmaceutical ampoules, from a glass tube is provided, the method including the following steps: (a) rotating the glass tube about a longitudinal axis thereof; (b) locally heating the glass tube from one side by means of at least one burner to at least the softening temperature of the glass; (c) reducing the diameter by pressing at least one forming body laterally against the heated region; and (d) separating the glass tube by means of a burner. A glass vial produced in such a way releases a reduced amount of alkali in accordance with ISO 4802 and has a decreased delamination tendency. Furthermore, in the hot-formed peripheral region, the alkali content is only slightly reduced when compared with the alkali content in the glass interior.
Inventors:
Line Heart Menle
Stephan Tratzky
Franz Jaeger
Stephan Tratzky
Franz Jaeger
Application Number:
JP2016526478A
Publication Date:
August 28, 2019
Filing Date:
June 16, 2014
Export Citation:
Assignee:
Schott AG
International Classes:
C03B23/04; A61J1/06; C03B33/085
Domestic Patent References:
| JP35015545B1 | ||||
| JP4119932A | ||||
| JP30007797B1 | ||||
| JP2001328612A |
Foreign References:
| US2447568 | ||||
| US20040129026 |
Attorney, Agent or Firm:
Einzel Felix-Reinhard
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima