Patent US2326783A successfully refreshed from Google Patents.
Patent EP0171309A1 successfully refreshed from Google Patents.
← Back to Patent Explorer
EP0171309A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Preparation of a plastic material for extrusion, especially in the form of a gauged strand for joining and spacing glazing assemblies

Assignee: Saint Gobain Glass France SAS
•
Filing: 1985-07-03
•
Granted: —
•
Expires: 2005-07-03
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from French L'invention se rapporte à la distribution d'une matière plastique du type caoutchouc butyl, et plus spécialement à sa préparation et à son acheminement depuis un réservoir où elle est dure, visqueuse et à température relativement basse, jusqu'à une buse d'extrusion où elle doit posséder une viscosité et une dureté bien inférieures à celles qu'elle avait initialement. L'invention propose une préparation en plusieurs étapes combinant chauffage et mise sous pression de façon à alimenter au débit voulu et avec la qualité de matière plastique désirée une buse éventuellement mobile. L'invention s'applique à la fabrication d'un cordon servant de joint et d'intercalaire dans des vitrages multiples. The invention relates to the distribution of a plastic material of the butyl rubber type, and more particularly to its preparation and its transportation from a tank where it is hard, viscous and at relatively low temperature, to a nozzle. extrusion where it must have a viscosity and a hardness much lower than those which it had initially. The invention proposes a preparation in several stages combining heating and pressurization so as to supply at the desired flow rate and with the desired quality of plastic material a nozzle which is possibly mobile. The invention applies to the manufacture of a bead serving as a seal and interlayer in multiple glazing.

Inventors

  • 👤 Karl Lenhardt

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-31 18:01
CPC Classifications
B; B05; B05C; B05C9/00; B05C9/08; B05C9/14; B05C21/00; B29; B29B; B29B13/00; B29B13/02; B29B13/022; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/365; B29C48/37; B29C48/475; E; E06; E06B; E06B3/00; E06B3/66; E06B3/673; E06B3/67326; E06B3/6733; B29C48/03; B29C48/05; B29L; B29L2031/00; B29L2031/26; B29L2031/778; E06B3/67365; E06B2003/67378; Y; Y10; Y10S; Y10S425/00; Y10S425/013; Y10S425/023

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

US3412903A Cited
FR2207799A1 Cited
US4205104A Cited
US4024854A Cited
GB2016960A Cited
US4227069A Cited
GB2049815A Cited
EP0115479A1 Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag