• 专利标题:   Manufacture of trans-polyoctenamer-graphene composite material for e.g. electronic application, involves dissolving trans-polyoctenamer in organic solvent, introducing graphene material with input of power, precipitating obtained reaction solution in solvent, and drying obtained reaction product.
  • 专利号:   EP4026800-A1, WO2022148669-A1, TW202243998-A, EP4178911-A1
  • 发明人:   LEICH V, PAASCHE A, SCHUMANN S, SPANNENKREBS D, MERKULOV A, BREUERS V, DAESCHLEIN C, PAULMANN U, HOENIG J
  • 专利权人:   EVONIK OPERATIONS GMBH, EVONIK OPERATIONS GMBH
  • 国际专利分类:   B82Y030/00, B82Y040/00, C01B032/194, C08K003/04
  • 专利详细信息:   EP4026800-A1 13 Jul 2022 C01B-032/194 202269 Pages: 14 German
  • 申请详细信息:   EP4026800-A1 EP150690 08 Jan 2021
  • 优先权号:   EP150690

▎ 摘  要

NOVELTY - Manufacture of trans-polyoctenamer-graphene composite material involves (i) dissolving trans-polyoctenamer in organic solvent(s) (s1) to obtain a polymer solution of trans-polyoctenamer, (ii) introducing a graphene material into the polymer solution with an input of power to obtain a trans-polyoctenamer graphene reaction solution, (iii) precipitating the reaction solution in solvent(s) (s2) or removing solvents by drying the reaction solution to obtain a reaction product and (iv) drying the reaction product, or (v) performing ring-opening metathesis polymerization of trans-polyoctenamer and (vi) subsequently or simultaneously adding graphene material, solvent(s) (s3) and catalyst(s) based on tungsten, ruthenium and/or molybdenum to obtain a reaction solution containing the trans-polyoctenamer graphene composite. USE - Manufacture of trans-polyoctenamer-graphene composite material used for automotive application, heat exchanger, housing, encapsulation, plain bearing, three-dimensional print head for heat dissipation application, injection molded component, electronic application, hose system, membrane, fuel cell, cable system, clothing application, sports application, electromagnetic protection application and orthopedic application (all claimed). ADVANTAGE - The method enables manufacture of trans-polyoctenamer-graphene composite material using graphene having high dispersion quality. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (i) the trans-polyoctenamer-graphene composite material, which has a degree of filling of graphene material of 15-99.9 wt.%, based on 100 wt.% of total amount of trans-polyoctenamer and graphene material, a dust number of 0.002-1 wt.%, if the degree of filling is 15-70 wt.%, and absorption bands of 500-1900 cm-1 in infrared absorption spectrum. A splitting of the absorption peaks of vibrational modes associated with carbon-carbon double bond into a discrete fine structure in the wavenumber of 1300-3900 cm-1; and (ii) use of trans-polyoctenamer-graphene composite material in combination with thermoplastics chosen from standard thermoplastics, preferably polyethylene, polypropylene, polystyrene, polyvinyl alcohol, alpha -olefin and butadiene derivative, engineering thermoplastics, preferably polyethylene terephthalate, polymethylmethacrylate, polycarbonate, polyoxymethylene, polyamide, polybutylene terephthalate, polyether block amide, thermoplastic urethane, polyurethane and thermoplastic elastomer, and high-performance thermoplastics, preferably polyphenyl sulfone, polyether ether ketone, polyether sulfone, polyimide and polyetherimide, copolymer, elastomer, paste containing silicone, preferably room-temperature-vulcanizing silicone, high-temperature-vulcanizing silicone, liquid silicone rubber, heat-cured rubber, acrylate, polysiloxane and oligosiloxane, polyurethane, rubber, preferably styrene butadiene rubber, butyl rubber, natural rubber, polybutadiene, functionalized polybutadiene and thermoplastic polyurethane, Duromer (RTM: thermoplastic polymer), preferably polyurethane, polyester resin, phenolic resin, epoxy resin, acrylate resin and silicone resin, solvent, preferably aprotic-non-polar, aprotic-polar, protic solvent, and oil, preferably mineral oil, silicone oil and processing oil, for automotive application, heat exchanger, housing, encapsulation, plain bearing, three-dimensional print head for heat dissipation application, injection molded component, electronic application, hose system, membrane, fuel cell, cable system, clothing application, sports application, electromagnetic protection application and orthopedic application.