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Title:
【発明の名称】安定化したポリウレタン尿素溶液およびその溶液からのスパンデックス繊維
Document Type and Number:
Japanese Patent JP3220459
Kind Code:
B2
Abstract:
Certain 4,4'-biphenylene diphosphonites in solutions of polyurethaneurea polymer, in concentrations of 0.05 to 1.5% based on dry polymer weight, protect the solutions from undesired changes in solution viscosity.

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Inventors:
Guddleitch, Charles William
Application Number:
JP50854593A
Publication Date:
October 22, 2001
Filing Date:
October 29, 1992
Export Citation:
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Assignee:
E. I. Dupont Do Nemour & Company
International Classes:
C08K5/5333; C08K5/5393; C08L75/00; C08L75/02; D01F6/94; (IPC1-7): C08L75/02; C08K5/5393; D01F6/94
Domestic Patent References:
JP56107009A
JP63126915A
Attorney, Agent or Firm:
Heiyoshi Odashima (1 person outside)



 
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