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Producing foamed gypsum board using a foaming agent blend 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B01F-017/00
출원번호 US-0598413 (1996-02-08)
발명자 / 주소
  • Sucech Steven W. (Lake Villa IL)
출원인 / 주소
  • USG Corporation (Chicago IL 02)
인용정보 피인용 횟수 : 99  인용 특허 : 0

초록 ▼

This invention is a process and foaming system for producing foamed gypsum board which permits the production and control of large foam voids in the gypsum core by adjusting the ratio of a first foaming agent and a second foaming agent. My process includes the steps of preforming a first foaming age

대표청구항 ▼

A process for producing foamed gypsum board which comprises the steps of: providing an aqueous gypsum slurry; providing a stream of a preformed first foaming agent which forms stable voids in a gypsum slurry; providing a stream of a preformed second foaming agent which forms unstable voids in a gyps

이 특허를 인용한 특허 (99)

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