国家/地区 中国（3）
IPC部 C（3）
IPC大类 C08（3）
IPC小类 C08G（3）
IPC C08K003/04（3）
发明人 LI H（3）
公开年 2022（3）
申请年 2022（3）
专利权人

Polyurethane useful for filling hydraulic construction concrete expansion joint, comprises polyether 330N, toluene diisocyanate, curing agent, catalyst, amino functional silane modified graphene oxide, beta-cyclodextrin modified chitosan, filler, pigment and viscosity reducing and toughening agent.

YANG D, LI H, XU Z

Preparing lightweight wave-absorbing sound-absorbing foam, comprises e.g. adding melamine, paraformaldehyde solution, and modified monomers into reactor, adding metal powder and carbon-based wave-absorbing materials, and adding emulsifier, curing agent, foaming agent and solvent into reactor.

WEI L, ZHANG F, CHENG X, WANG J, SUN W, LV G, HE H, LI H, ZHANG J, JIANG F, HE L, CAI J

Preparing high compression and flame-resistant composite epoxy foam used in e.g. aerospace industry, comprises preparing foaming precursor using boron novolac epoxy resin, multifunctional graphene oxide reinforcing particles and bifunctional foaming agent sulfonyl hydrazide by pre-curing.

YANG X, ZHU J, GUO T, HUAN X, LI H, JI Z, JIA X