| abstract |
A PROCESS OF MAKING A POLYURETHANE PLASTIC WHICH COMPRISES MIXING AN ORGANIC COMPOUND HAVING REACTIVE HYDROGEN ATOMS AS DETERMINED BY THE ZEREWITINOFF METHOD HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 500, AN ORGANIC POLYISOCYANATE, WATER AND A CATALYTIC AMOUNT OF A CATALYST CONTAINING A CARBOXYLIC ACID AND AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF STANNOUS HYDROXIDE, BIS(ETHYLHEXANOXYLOXYTIN) OXIDE, ETHYLHEXANOXYLTIN HYDROXIDE AND BIS(HYDROXYSTANNOUS) OXIDE. |