发明名称 |
CARBOXYLIC ACID MODIFIED CARBON DIOXIDE CO-BLOWN POLYURETHANE-POLYISOCYANURATE FOAMS |
摘要 |
Disclosed are rigid polyurethane-polyiso-cyanurate foams prepared from polyisocyanates, polyols, trimer catalysts and a blowing agent mixture comprising (i) a halocarbon, and (ii) an organic carboxylic acid, and, optionally water. The foams have excellent aged K-factor values at fluorocarbon levels reduced by up to 75 percent over prior art materials. 37,338-F
|
申请公布号 |
CA2021417(A1) |
申请公布日期 |
1991.01.20 |
申请号 |
CA19902021417 |
申请日期 |
1990.07.18 |
申请人 |
DOW CHEMICAL COMPANY (THE) |
发明人 |
BODNAR, THOMAS W.;COLE, LESLIE A.;DAI, SHENGHONG A. |
分类号 |
C08G18/00;C08G18/09;C08G101/00;C08J9/08;C08J9/12;C08J9/14;(IPC1-7):C08G18/16 |
主分类号 |
C08G18/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|