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公开(公告)号:US5561172A
公开(公告)日:1996-10-01
申请号:US290701
申请日:1994-11-12
IPC分类号: C08G18/00 , C07C17/42 , C08G18/16 , C08G18/18 , C08G18/20 , C08G18/22 , C08G18/42 , C08G18/48 , C08G18/50 , C08G101/00 , C08J9/02 , C08J9/14 , C08J9/06
CPC分类号: C08J9/144 , C07C17/42 , C08G18/165 , C08G18/1808 , C08G18/2027 , C08G18/22 , C08G18/5033 , C08G2101/0025 , C08J2375/04
摘要: A primary object of the invention is to provide a method of producing rigid polyurethane foams using 1,1-dichloro-1-fluoroethane (HCFC-141b) as the blowing agent while substantially avoiding the formation of decomposition products from HCFC-141b. The above object can be achieved by a method of producing rigid polyurethane foams which comprises reacting a polyol with an organic polyisocyanate for foaming in the presence of HCFC-141b and a stabilizer therefor and in the presence of an organic metal catalyst and/or an imidazole compound catalyst and by the thus-produced rigid polyurethane foams.
摘要翻译: PCT No.PCT / JP93 / 00175 Sec。 371日期:1994年11月21日 102(e)日期1994年11月21日PCT提交1993年2月12日PCT公布。 公开号WO93 / 16122 日本1982年8月19日本发明的主要目的是提供一种使用1,1-二氯-1-氟乙烷(HCFC-141b)作为发泡剂生产硬质聚氨酯泡沫的方法,同时基本避免了由HCFC形成的分解产物 -141b。 上述目的可以通过生产硬质聚氨酯泡沫体的方法来实现,该方法包括在HCFC-141b及其稳定剂存在下,在有机金属催化剂和/或咪唑存在下使多元醇与有机多异氰酸酯反应进行发泡 复合催化剂和由此生产的刚性聚氨酯泡沫。
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公开(公告)号:US5350777A
公开(公告)日:1994-09-27
申请号:US95214
申请日:1993-07-23
CPC分类号: C08J9/144 , C08G18/2835 , C08G18/8064 , C08G2101/0025 , C08G2330/50 , C08J2375/04
摘要: A method of producing an open cell rigid polyurethane foam which comprises reacting a polyol with a polymethylene polyphenyl polyisocyanate prepolymer with a monool exemplified by diethylene glycol monomethyl ether by use of a substitute such as 1,1-dichloro-1-fluoroethane or methylene chloride as a volatile blowing agent, or a mixture of the volatile blowing agent with water, for trichlorofluoromethane as a blowing agent in the presence of a catalyst, a foam stabilizer and a cell opening agent. The resultant open cell rigid polyurethane foam has a cell size of about 200-250 microns, and is suitable for use, for example, as a core material in a vacuum heat insulating material. The foam may be enclosed in a container under a vacuum of 0.1-0.01 mmHg readily attainable to provide a vacuum heat insulating material of a high heat insulating performance.
摘要翻译: 一种开孔硬质聚氨酯泡沫体的制造方法,其特征在于,将多元醇与多亚甲基多苯基聚异氰酸酯预聚物与二甘醇单甲醚例举的单醇通过使用1,1-二氯-1-氟乙烷或二氯甲烷等替代物反应, 挥发性发泡剂,挥发性发泡剂与水的混合物,三氯氟甲烷作为发泡剂,在催化剂存在下,泡沫稳定剂和开孔剂。 所得的开孔硬质聚氨酯泡沫具有约200-250微米的电池尺寸,并且适合用作例如真空绝热材料中的芯材料。 泡沫可以在0.1-0.01mmHg的真空下封闭在容器中,容易获得,以提供具有高绝热性能的真空绝热材料。
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公开(公告)号:US5457138A
公开(公告)日:1995-10-10
申请号:US989561
申请日:1992-12-11
申请人: Kiyohiro Yuge , Hitoshi Muramatsu
发明人: Kiyohiro Yuge , Hitoshi Muramatsu
CPC分类号: C08J9/02 , C08G18/10 , C08G18/7664 , C08G18/8035 , C08G18/8064 , C08G2101/0025 , C08G2101/0083 , C08G2105/02 , C08G2330/50 , C08J2375/04 , Y10S521/902
摘要: A method of producing an open cell rigid polyurethane foam which comprises reacting a polymethylene polyphenylisocyanate prepolymer with a polyol at an NCO/OH equivalent ratio of 1.3 to 3.0 by use of a blowing agent substantially comprising water in the presence of a catalyst, a foam stabilizer and a cell opening agent.
摘要翻译: 一种开孔硬质聚氨酯泡沫体的制造方法,其特征在于,使聚亚甲基聚苯基异氰酸酯预聚物与NCO / OH当量比为1.3〜3.0的多元醇反应,使用在催化剂存在下,基本上含有水的发泡剂,泡沫稳定剂 和开孔剂。
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公开(公告)号:US4405682A
公开(公告)日:1983-09-20
申请号:US243452
申请日:1981-03-13
申请人: Shoichi Fujita , Katsuhisa Kodama , Kiyohiro Yuge
发明人: Shoichi Fujita , Katsuhisa Kodama , Kiyohiro Yuge
IPC分类号: B32B5/18 , B29C63/00 , B32B15/08 , B32B37/00 , B32B37/10 , E04B1/84 , E04B1/94 , E04C2/284 , B29D27/04 , B32B5/30
CPC分类号: E04C2/284 , B32B15/08 , E04B1/941 , Y10S428/92 , Y10S428/921 , Y10T428/249985 , Y10T428/24999 , Y10T428/259
摘要: A method for producing a fire-resistant, thermally insulating board, which comprises applying liquid hydrated sodium silicate (B) onto the inner surface of a facing material or sheet (A), spreading powdery hydrated sodium silicate (C) over the said applied surface, laying the said spread surface on(1) a facing material or sheet (D),(2) a facing material or sheet (D) applied in advance with liquid hydrated sodium silicate (B) or(3) a facing material or sheet having powdery hydrated sodium silicate (C) spread further over the applied surface of (2),implementing the heating and pressing procedure for gluing the assembly, and laminating the resulting fire-resistant board (E) with rigid isocyanurate foam (F).The fire-resistant, thermally insulating board shows reduced fusing and combustion of the rigid isocyanurate foam (F) even when exposed to flame and posseses superior mechanical properties.
摘要翻译: 一种耐火隔热板的制造方法,其特征在于,在表面材料或片材(A)的内表面上涂布液体水合硅酸钠(B),在所述涂布面上撒上粉状水合硅酸钠(C) 将所述铺展表面铺设在(1)面材或片材(D)上,(2)预先用液体水合硅酸钠(B)或(3)面向材料或片材施加的面层材料或片材(D) 具有粉末状水合硅酸钠(C)在(2)的施加表面上进一步扩展,实施用于胶合组件的加热和压制程序,并将所得到的耐火板(E)与刚性异氰脲酸酯泡沫(F)层压。 耐火绝热板即使在暴露于火焰下也能显示刚性异氰脲酸酯泡沫(F)的熔融和燃烧,并具有优异的机械性能。
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