国家/地区 中国（13） 美国（4） 欧洲专利局（EPO）（3） 日本（3） 世界知识产权组织（3） 加拿大（2） 韩国（2）
IPC部 B（16）
IPC大类 C08（16）
IPC小类 C08G（16）
IPC C08G018/76（16）
发明人
公开年 2022（5） 2021（4） 2017（2） 2020（2）
申请年 2020（5）  2021（4）  2016（2）  2022（2） 
专利权人

Selective laser sintering process for preparing highly spherical particles, involves depositing carbon nanomaterial-graft-polyurethane particles on nanomaterial surface and exposing nanomaterial grafted polyurethane particles to laser, for fusing polymer particles and forming consolidated body.

SRISKANDHA S E, FARRUGIA V M, CLARIDGE R, EMPARUZIA V, SIBANTIISWARISLISKANDA, EASWARI S, SRISKANDAR S E

High hardness polyurethane tire useful in forklift tire for fork wheel, comprises curing agent comprising dispersion of complex of small molecular diamine and sodium chloride in dioctyl adipate and isocyanate prepolymer composed of diisocyanate and polyether polyol.

WANG J, LI F

Composite material used for forming structural material, comprises closed cell polyurethane matrix portion exhibiting properties associated with wood, and particulate portion homogeneously distributed and suspended in matrix portion, where particulate portion is fiberglass and hemp fiber.

CHRISTY J, ESCOBAR H

Preparing polyurethane, involves preparing polyol using e.g. polyether, polytetrahydrofuran ether, polyethylene glycol, compatibilizer polybranched polyester and foaming agent, then preparing isocyanate using diphenylmethane diisocyanate, and mixing polyol and isocyanate in mixing reaction kettle.

ZHAO W, LIANG Y, YAO H, YANG Z, LIU J, SHI J

Composite material useful for fiber winding, comprises bisphenol A type epoxy resin, toughening epoxy resin, wetting agent, active diluent, hydrophobic modified nano filler, coupling agent, antifoaming agent, latent curing agent, accelerator and wetting dispersant.

QIU S, DENG H, ZHENG S, HUANG B, LI G, LIN W

Optical endpoint detection window useful for chemical mechanical polishing pads, comprises isocyanate-terminated pre-polymer, curing agent and surface modified nano-material.

WANG K, XIE Y

Thermal insulation material used in building and construction, refrigeration appliance, electronic devices, aerospace and batteries comprises aerogel layer consisting of monolithic organic aerogel and cover layer.

WEINRICH D, FRICKE M, VOGELSANG V, LIED F, ENGEL S

High performance polyurethane flame retardant foam comprises a foam base layer, a bulked fiber layer and a silencing foam layer.

WANG X, YOU Z

Preparation method of polyurethane conveyor belt based on modified graphene, involves adding isocyanate, silane coupling agent and modified graphene, raising temperature and mixing components uniformly in mold, demold, and aging.

CHEN L, GENG D

Graphene-modified polyurethane conductive material comprises functionalized graphene, diphenylmethane diisocyanate, polyester diol, dibutyltin dilaurate, 2,2-dimethylolpropionic acid and 1,4-hexanediol.

LIN D