发明授权
US4529746A Alkylated vicinal toluenediamines and their use as chain extenders in the preparation of polyurethane-polyurea elastomers 失效
烷基化邻位甲苯二胺及其在制备聚氨酯 - 聚脲弹性体中作为扩链剂的用途

Alkylated vicinal toluenediamines and their use as chain extenders in
the preparation of polyurethane-polyurea elastomers
摘要:
This invention relates to alkylated vicinal toluenediamines and their use as chain extenders in the preparation of polyurethane elastomers.
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