Waterproof, moisture vapor permeable polymers, films and coated textiles and other materials

A water vapor-permeable, waterproof adhesive polymer of the formula ##STR10## where R.sup.1 is a bivalent aliphatic or aromatic hydrocarbon group which optionally may be substituted;

• R.sup.2 is a bivalent poly(ethylene oxide) of molecular weight around between 400 to 8000 g/mole;
• R.sup.3 is a bivalent poly(tetramethylene oxide), poly(propylene oxide), polybutadiene or polyisobutylene of molecular weight around between 500 to 3000 g/mole;
• R.sup.4 is a bivalent polyester glycol with a molecular weight of around between 500 to 3000 g/mole;
• R.sup.5 is a bivalent aliphatic, linear or branched hydrocarbon having 2 to 20 carbon atoms;
• R.sup.6 is a bivalent linear or branched hydrocarbon chain having 2 to 20 carbon atoms or an ether having 2 to 20 carbon atoms;
• R.sup.7 is a hydrogen or an alkyl having 1 to 4 carbon atoms;
• X is an oxygen atom or ##STR11## group where R is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms;
• Y and Z represent a hydrogen atom or a hydroxy group, with the proviso that at least Y or Z is a hydroxy group,
• (a), (b), (c), (d), and (e) represent the average repeat units in the polymer backbone;
• (a), (b), (c), and (d) are numbers up to 10;
• and
• (a), (b), and (c) each must be at least 1;
• (e) is a number of from 1 to 50.