Polyurethanes chain-extended with a hydroxyl containing amide chain extender
Abstract
Abstract THERE IS DISCLOSED A PROCESS FOR THE MANUFACTURE OF NOVEL CHAIN EXTENDERS OR MIXTURES THEREOF FOR USE IN PREPARING POLYURETHANES COMPRISING REACTION OF AN ALIPHATIC, CYCLOALIPHATIC, HETEROCYCLIC, OR AROMATIC DIAMINE OR AMINO ALCOHOL, WITH FROM ABOUT 1.0 TO ABOUT 1.5 MOLES OF AN EPSILON-CAPROLACTONE OR A 6-HYDROXYCAPROIC ACID PER MOLE OF ACTIVE AMINE FUNCTIONAL GROUP OF SAID DIAMINE OR AMINO ALCOHOL, AT A TEMPERATURE OF FROM 100 TO 300*C., IN THE PRESENCE OR ABSENCE OF A METALLIC CATALYST. THERE IS FURTHER DISCLOSED A PROCESS FOR THE MANUFACTURE OF POLYURETHANE POLYMERS WHICH COMPRISES REACTING A MEMBER OF THE GROUP CONSISTING OF (A) POLYESTERS PREPARED FROM DICARBOXYLIC ACIDS AND GLYCOLS, (B) POLYESTERS PREPARED FROM EPSILON-CAPROLACTONES OR 6-HYDROXYCAPROIC ACIDS, OR (C) POLYETHERS PREPARED FROM 1,2-ALKYLENE OXIDES AND/OR TETRAHYDROFURAN, WITH ORGANIC POLYIDOCYNATES AND A CHAIN EXTENDER PREPARED AS DESCRIBED ABOVE.
Inventors
- 👤 Frank G Lombardi
- 👤 Fritz Hostettler
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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