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
Inventors
HEMPHILL, Mark
LI, Qinghua
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 | * |
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| Number of Office Actions | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2156 | |
| EPO | Filing, Examination, Granting | 8957 | |
| Japan | Filing, Examination, Granting | 2018 | |
| South Korea | Filing, Examination, Granting | 1774 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
19,645
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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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.