Use of 3,(4)-substituted pyrrozidines as catalysts in the polyisocyanate-polyaddition process and a process for the preparation of polyurethanes and polyureas
The invention relates to the use of 3- and/or 4-substituted pyrrolidines as catalysts for the preparation of products by the polyisocyanate-polyaddition process. They can be employed as a replacement for, or in combination with, urethane catalysts which are known per se, for example 1,4-diazabicyclo...
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| creator | SCHOLZ, UWE RUCKES, ANDREAS WEIDER, RICHARD |
| description | The invention relates to the use of 3- and/or 4-substituted pyrrolidines as catalysts for the preparation of products by the polyisocyanate-polyaddition process. They can be employed as a replacement for, or in combination with, urethane catalysts which are known per se, for example 1,4-diazabicyclo[2,2,2]octane (DABCO) for the preparation of rigid or flexible polyurethane foams as well as a large number of other polyurethane products. The abovementioned term "polyurethane products" is to be understood hereinafter as meaning all reaction products of polyisocyanates with compounds having at least 2 hydrogen atoms which are reactive towards isocyanates, i.e. the term polyurethane used herein is to be understood, for example, as meaning pure polyurethanes, polyurethane polyureas or pure polyureas. |
| format | Patent |
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The abovementioned term "polyurethane products" is to be understood hereinafter as meaning all reaction products of polyisocyanates with compounds having at least 2 hydrogen atoms which are reactive towards isocyanates, i.e. the term polyurethane used herein is to be understood, for example, as meaning pure polyurethanes, polyurethane polyureas or pure polyureas.</description><edition>7</edition><language>eng ; fre ; ger</language><subject>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; HETEROCYCLIC COMPOUNDS ; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS ; METALLURGY ; ORGANIC CHEMISTRY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; THEIR RELEVANT APPARATUS ; TRANSPORTING</subject><creationdate>2000</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20001122&DB=EPODOC&CC=EP&NR=0499873B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20001122&DB=EPODOC&CC=EP&NR=0499873B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SCHOLZ, UWE</creatorcontrib><creatorcontrib>RUCKES, ANDREAS</creatorcontrib><creatorcontrib>WEIDER, RICHARD</creatorcontrib><title>Use of 3,(4)-substituted pyrrozidines as catalysts in the polyisocyanate-polyaddition process and a process for the preparation of polyurethanes and polyureas</title><description>The invention relates to the use of 3- and/or 4-substituted pyrrolidines as catalysts for the preparation of products by the polyisocyanate-polyaddition process. 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| subjects | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON HETEROCYCLIC COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING |
| title | Use of 3,(4)-substituted pyrrozidines as catalysts in the polyisocyanate-polyaddition process and a process for the preparation of polyurethanes and polyureas |
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