http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109881301-B
Outgoing Links
Predicate | Object |
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classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01D5-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F8-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01D10-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01D5-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F1-10 |
filingDate | 2019-03-05^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate | 2021-04-20^^<http://www.w3.org/2001/XMLSchema#date> |
publicationDate | 2021-04-20^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | CN-109881301-B |
titleOfInvention | Preparation method of room-temperature self-repairing polyurethane elastic fiber |
abstract | The invention discloses a preparation method of a room temperature self-repairing polyurethane elastic fiber, which comprises the following steps: 1) preparing N, N-dimethylacetamide solution of polyurethane-polyurea containing disulfide bonds, adding a clathrating agent, and curing to obtain a core layer spinning solution; 2) preparing an N, N-dimethylacetamide solution of polyurethane-polyurea copolymer, adding an antioxidant, an ultraviolet absorber, a lubricant, a delustering agent, a dyeing assistant and other auxiliaries, and curing to obtain a skin layer spinning solution; 3) carrying out spinning and stretching on the spinning solution of the skin layer and the core layer through a skin-core spinneret plate, drying at high temperature in a channel to prepare polyurethane elastic fiber with a skin-core structure, and finally oiling and winding to obtain the room-temperature self-repairing polyurethane elastic fiber cake. |
priorityDate | 2019-03-05^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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