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21.发明授权Spandex fibers having segments containing at least two tertiary nitrogen atoms 失效具有至少两个硝酸盐矿物的分段的SPANDEX纤维
公开(公告)号：US3461101A
公开(公告)日：1969-08-12
申请号：US45785065
申请日：1965-05-21
Applicant: BAYER AG
Inventor： OERTEL HARALD , RINKE HEINRICH , ROSENDAHL FRIEDRICH-KARL
CPC classification number: C08G18/10 , Y10S528/906 , C08G18/3225 , C08G18/3246 , C08G18/325 , C08G18/3265
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22.发明授权Two-step process for the production of solutions of segmented polyurethane polymers 失效用于生产分离聚氨酯聚合物溶液的两步法
公开(公告)号：US3377308A
公开(公告)日：1968-04-09
申请号：US30627163
申请日：1963-09-03
Applicant: BAYER AG
Inventor： OERTEL HARALD , RINKE HEINRICH , THOMA WILHELM
CPC classification number: C08G18/721 , C08G18/10 , C08G18/71 , C08G18/3231 , C08G18/7831 , C08G18/3861 , C08G18/73 , C08G18/3225 , C08G18/3851 , C08G18/3834 , C08G18/72
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