PROCESS FOR THE PREPARATION OF POLYURETHANES
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Abstract
A PROCESS FOR THE PREPARATION OF POLYURETHANES, WHICH MAY OR MAY NOT BE CROSS-LINKED, FROM HIGHER MOLECULAR WEIGHT, LINEAR DIHYDROXY COMPOUNDS, DIISOCYANATES AND LOW MOLECULAR WEIGHT CHAIN LENGTHENING AGENTS WHICH CONTAIN AT LEAST TOW HYDROGEN ATOMS THAT ARE REACTIVE WITH ISOCYANATES, CHARACTERIZED IN THAT THE HIGHER MOLECULAR WEIGHT DIHYDROXY COMPOUNDS USED ARE REACTION PRODUCTS OF $-CAPROLACTONE AND/OR $-HYDROXYCAPROIC ACID, HEXANE-1,6-DIOL AND DIARYL CARBONATES.
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