Title:
POLYURETHANE MATERIAL, AND PREPARING METHOD THEREFOR AND APPLICATION THEREOF, POLYMER MATERIAL, AND 3D STENT
Document Type and Number:
WIPO Patent Application WO/2020/215800
Kind Code:
A1
Abstract:
A polyurethane material, and a preparing method therefor and an application thereof, a polymer material, and a 3D stent, relating to the technical field of new materials. The polyurethane material is mainly obtained by carrying out chain extension on a prepolymer A by means of a chain extender. The chain extender comprises a carbon material having a hydroxyl group on the surface, or similar materials of the carbon material. The prepolymer A has a structure shown in structural general formula 1, wherein X represents -(CH2CH2)- or (I); Y represents an optionally-substituted C1-C12 alkyl group, an optionally-substituted C1-C12 naphthenic group, an optionally-substituted C6-C12 aromatic group, an optionally-substituted C6-C12 heterocyclic group, or an optionally-substituted C6-C12 heteroaryl group; m and n represent respective polymerization degrees; the number-average molecular weight of the prepolymer A is 250-20000. The carbon material is prepared into amphiphilic polyurethane, the material can be modified and enhanced for various organic/inorganic material processing systems, and the mechanical performance and biocompatibility of the material can be remarkably improved.
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Inventors:
RUAN CHANGSHUN (CN)
HU CHENGSHEN (CN)
LIU JUAN (CN)
HU CHENGSHEN (CN)
LIU JUAN (CN)
Application Number:
PCT/CN2019/130548
Publication Date:
October 29, 2020
Filing Date:
December 31, 2019
Export Citation:
Assignee:
SHENZHEN INST ADV TECH (CN)
International Classes:
C08G18/73; C08G18/48; C08K3/04; C08L75/08
Foreign References:
| CN110117348A | 2019-08-13 | |||
| CN106632941A | 2017-05-10 | |||
| EP0716044A1 | 1996-06-12 | |||
| CN102424381A | 2012-04-25 | |||
| CN101165127A | 2008-04-23 |
Attorney, Agent or Firm:
SHENZHEN KEJIN INTELLECTUAL PROPERTY OFFICE (CN)
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