WO2022233455 - HIGH TEMPERATURE SAG RESISTANT LIGHTWEIGHT GYPSUM BOARD
National phase entry:
Publication Number
WO/2022/233455
Publication Date
10.11.2022
International Application No.
PCT/EP2022/025202
International Filing Date
03.05.2022
Title **
[English]
HIGH TEMPERATURE SAG RESISTANT LIGHTWEIGHT GYPSUM BOARD
[French]
PANNEAU DE GYPSE LÉGER RÉSISTANT À L'AFFAISSEMENT À HAUTE TEMPÉRATURE
Applicants **
KNAUF GIPS KG
Am Bahnhof 7
97346 Iphofen, DE
Inventors
HEMPHILL, Mark
5 Spring Creek Ct.
Hawthorn Woods, IL 60047, US
LI, Qinghua
2805 Mill Creek Lane
Rolling Meadows, IL 60008, US
Priority Data
63/185,622
07.05.2021
US
17/658,122
06.04.2022
US
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
| * | |
| * | |
International Searching Authority |
EPO
* |
| Applicant's Legal Status |
Legal Entity
* |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
* |
| Translation |
|
Recalculate
* The data is based on automatic recognition. Please verify and amend if necessary.
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1245 | |
| EPO | Filing, Examination | 5149 | |
| Japan | Filing | 589 | |
| South Korea | Filing | 607 | |
| USA | Filing, Examination | 2710 |
Total: 10300 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
A high temperature sag resistant lightweight wallboard. The addition of a small amount of urea (about 0.1 %) significantly improves the high-temperature sag resistance on Type X gypsum wallboards. These gypsum wallboards may have a board weight of less than 2100 Ibs/msf when cast to have an overall 5.8 inch thickness, and may include glass fibers and/or mineral wool. Also, methods of making the gypsum wallboard and a wall system for employing the gypsum wallboard.[French]
L'invention concerne un panneau léger résistant à l'affaissement à haute température. L'ajout d'une petite quantité d'urée (environ 0,1 %) améliore significativement la résistance à l'affaissement à haute température sur des panneaux de gypse de type X. Ces panneaux de gypse peuvent avoir un poids de panneau inférieur à 2100 Ibs/msf lorsqu'ils sont coulés pour avoir une épaisseur globale de 5,8 pouces, et peuvent comprendre des fibres de verre et/ou de la laine minérale. L'invention concerne également des procédés de fabrication du panneau de gypse et un système de paroi pour utiliser ce panneau de gypse.