urethane modified isocyanate composition, hydrophilic polyurethane polymer, processes for making a foam and hydrophilic polyurethane gel, horticultural growth medium and use of a urethane modified isocyanate composition

摘要

URETANE MODIFIED ISOCYANATE COMPOSITION, HYDROPHYLIC POLYURETHANE POLYMER, PROCESSES FOR MAKING A HYDROPHYLIC POLYURETHANE FOAM, HORTICULTURAL GROWTH MEDIUM AND USE OF A MODIFY UTITUO ISOCIANATE COMPOSITION. The present invention relates to an isocyanate terminated composition having utility in the preparation of hydrophilic polyurethanes. The isocyanate composition has an isocyanate content of less than about 15 weight percent and comprises the reaction product of an aliphatic or aromatic polyisocyanate, or mixtures thereof with a polyol composition containing a polyether polyol derived from a molecule containing tertiary nitrogen