Title:
石膏壁張り用材およびその製造方法
Document Type and Number:
Japanese Patent JP3511265
Kind Code:
B2
Abstract:
A method of preparation and use of high-strength gypsum wallboard, as well as a core composition suitable for use therein, are disclosed. The core composition includes a slurry of calcium sulfate hemihydrate (stucco), water, and a strengthening agent. The strengthening agent includes an acrylic polymer composition having a glass transition temperature of about 15 DEG C. or greater, and preferably has good divalent ion stability. The method provides wallboard having increased core strength, paper-to-core bonding, and strength-to-weight ratio.
Inventors:
キングストン， ラリー． ダブリュー．
バーク， ダブリュー．， ロイ
バーク， ダブリュー．， ロイ
Application Number:
JP53090698A
Publication Date:
March 29, 2004
Filing Date:
December 19, 1997
Export Citation:
Assignee:
ナショナル ジプサム プロパティーズ，リミテッド ライアビリティ カンパニー
International Classes:
C04B24/26; C04B28/14; D06N7/02; C04B111/40; (IPC1-7): C04B28/14; C04B24/26
Attorney, Agent or Firm:
角田 嘉宏
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