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US 4,169,206 AGranted
Polymers containing amino groups and hydroxyl and/or mercapto groups and the use thereof for the production of polyurethane resins
AssigneeBayer Aktiengesellschaft
InventorsJan Mazanek, Johannes Blahak
Life of this patent
Estimating the term…
Abstract
The invention relates to compositions containing both amino groups and hydroxyl and/or mercapto groups. The products are obtained by reacting relatively high molecular weight polyols and/or polythiols with less than equivalent quantities of isatoic acid anhydride.
Claims5
Compounds corresponding to the following general formula:
- ##STR5## wherein X represents oxygen or sulphur;
- R represent a k-valent radical obtainable by removal of k hydroxyl and/or mercapto groups from a material selected from the group consisting of polyether polyols, polythioether polythiols, polyols containing both polyether and polythioether segments and polythiols containing both polyether and polythioether segments, said material having n hydroxyl and/or mercapto groups and a molecular weight of from 1300 to 60,000;
- n represents an integer of from 2 to 8;
- and
- k has an average value of from 0.05 n to 0.7 n.
2 more elements
Compounds corresponding to the following general formula:
- ##STR6## wherein X represents oxygen
- R represents a k-valent radical obtainable by removal of k hydroxyl and/or mercapto groups from a material selected from the group consisting of polyether polyols, polythioether polythiols, polyols containing both polyether and polythioether segments and polythiols containing both polyether and polythioether segments, said material having n hydroxyl and/or mercapto groups and a molecular weight of from 1300 to 60,000;
- n represents an integer of from 2 to 8;
- and
- k has an average of from 0.05 n to 0.7 n.
2 more elements
Dependencies are inferred from the claim text.