国家/地区 中国（8）
IPC部 C（8）
IPC大类 C08（8） F16（8） B32（2）
C09（2）
IPC小类 C08K（8）
IPC C08K003/04（8）
发明人 LIANG Y（2）
公开年 2022（8）
申请年 2022（6）  2021（2） 
专利权人

Double insulation type self-limiting temperature heating cable used in electric heating element, comprises two parallel metal wire cores whose outside is covered with PTC material layer, where PTC material layer is covered with inner insulating layer and flame-retardant outer insulating layer.

JI C

Rubber tube useful for underground hydraulic transmission, comprises e.g. inner rubber layer set inside composite layer and outer rubber layer set outside composite layer, where metal weaving layer is compounded on middle rubber layer, and outer rubber layer is compounded on metal weaving layer.

WANG Y, HU X, HAN W, JIA X, LIU G, LI X

Modified core-shell masterbatch toughened polypropylene random copolymer (PPR) pipe comprises tube body comprising outer layer, middle layer and inner layer, where outer layer comprises PPR resin, modified nano-calcium carbonate and dispersant.

MO Y, LU Z, LI Y, LI H, SHI K, LIANG Y, LAN J

Modified polyethylene wearable composite pipe for water supply and drainage of municipal and building, has glass fiber line that is provided with multiple layers on outer layer pipe structure, inner tube body and outer layer pipe body fixedly connected with the inner layer pipe body.

LIN J

Processing cold-resistant water pipe useful in e.g. polyvinyl chloride water supply pipe, comprises e.g. ultrasonically dispersing graphene oxide and deionized water, centrifuging, reacting, stirring polypropylene, ethylene-octene copolymer, high-density polyethylene, and performing melt extrusion.

LU X, GU N

Weather-resistant drainage pipeline with multilayer structure, comprises an inner layer, an intermediate layer and an outer layer, where the intermediate layer pipe comprises PVC resin, calcium carbonate powder, calcium-zinc heat stabilizer, solid plasticizer, processing aid and toughening modifier.

HUO F, CHEN H, SONG Q, FENG J

Preparing high-pressure-resistant pipeline plastic involves preparing modified carbon fiber, preparing modified nano particle, adding graphene oxide into absolute ethyl alcohol, soaking completely graphene oxide, and performing ultrasonic treatment to obtain dispersion liquid of graphene oxide.

ZHOU J

Multifunctional oxygen barrier pipe useful in cold water and/or hot water conveying and preparing floor heating pipe material, comprises first PB layer, outer hot melt adhesive layer, aluminium layer, inner hot melt adhesive layer and second PB layers from outside to inside in turn.

JIN J, WANG L, LIANG Y