EP 4208420 A1 20230712 - GLASS VESSEL
Title (en)
GLASS VESSEL
Title (de)
GLASBEHÄLTER
Title (fr)
RÉCIPIENT EN VERRE
Publication
Application
Priority
- LU 102044 A 20200903
- EP 2021074283 W 20210902
Abstract (en)
[origin: WO2022049204A1] The invention relates to a glass vessel having at least one wall and manufactured from a base material which is an alkali-containing silicate glass. It is a feature of the glass vessel that at least a surface layer is enriched in potassium and depleted of sodium and/or lithium, while an inner layer, especially one directly adjoining the surface layer, is not enriched in potassium and not depleted of sodium and/or lithium, and that the glass vessel has compressive stress up to a compressive stress depth and tensile stress beyond the compressive stress depth, wherein the tensile stress rises with increasing depth up to a tensile stress maximum within the inner layer and/or wherein the progression of the tensile stress as a function of depth does not have a linear section and/or wherein the progression of the tensile stress as a function of depth does not have a section in which tensile stress is constant.
IPC 8 full level
C03C 21/00 (2006.01); C03B 27/012 (2006.01); C03B 27/016 (2006.01)
CPC (source: EP US)
A47G 19/2205 (2013.01 - US); B65D 1/0207 (2013.01 - EP); B65D 1/0215 (2013.01 - US); B65D 1/10 (2013.01 - US); C03B 27/012 (2013.01 - EP); C03B 27/016 (2013.01 - EP); C03C 21/00 (2013.01 - EP); C03C 21/002 (2013.01 - US)
Citation (search report)
See references of WO 2022049204A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022049204 A1 20220310; CN 116670083 A 20230829; EP 4208420 A1 20230712; LU 102044 B1 20220303; TW 202222729 A 20220616; US 2023331424 A1 20231019
DOCDB simple family (application)
EP 2021074283 W 20210902; CN 202180067328 A 20210902; EP 21762739 A 20210902; LU 102044 A 20200903; TW 110132613 A 20210902; US 202118024352 A 20210902