Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1998-10-21
2000-02-29
Cooney, Jr., John M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521128, 521129, 521130, 521170, 521172, C08G 1814
Patent
active
060310138
ABSTRACT:
In a process for producing foams based on polyisocyanate polyaddition products by reacting isocyanates with compounds which are reactive toward isocyanates and have a molecular weight of from 400 to 8000 in the presence of blowing agents, catalysts and, if desired, chain extenders and/or crosslinkers having a molecular weight of <400, auxiliaries and/or additives, use is made of isocyanates having isocyanurate and/or biuret structures, at least one compound which is reactive toward isocyanates, has a molecular weight of from 400 to 8000 and contains at least 50% primary hydroxyl groups, as catalysts at least one tertiary amine and at least one metal salt plus from 0.5 to 5.3% by weight of water, based on the weight of the compounds which are reactive toward isocyanates and have a molecular weight of from 400 to 8000, and the reaction is carried out at >40.degree. C.
REFERENCES:
patent: 3954825 (1976-05-01), Touhey, Jr. et al.
patent: 4772639 (1988-09-01), Pilger et al.
patent: 5039712 (1991-08-01), Brock
patent: 5187206 (1993-02-01), Volkert et al.
patent: 5798533 (1998-08-01), Fishback et al.
EPO Search Report dated Jan. 22, 1999 and Translation of Same EPO Search Report.
Illguth Rolf
Mertes Jurgen
Scherzer Dietrich
Treuling Ulrich
BASF - Aktiengesellschaft
Borrego Fernando A.
Cooney Jr. John M.
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