Nan Ya Plastics Corporation

Chia-Ho Cheng

Te-Chao Liao

Chun-Che Tsao

Dein-Run Fung

Ying-Te Huang

Chao-Hsien Lin

Tzai-Shing Chen

Wen-Yi Wu

Sung-Yueh Shieh

A transparent polyester film has low visible light transmittance of 5-50% by JIS K7705 testing standard and a high infrared-blocking rate of at least 90% by JIS R3106 testing standard, which is extruded from a kind of polyester resins obtained from 5-40 wt % of nanoparticle-based thermal insulation slurry and/or 0.005-0.1 wt % of nanoparticle-based black pigment slurry by weight of and to react with the polymerization materials to completely perform an esterification and a polycondensation, wherein the thermal insulation nanoparticle has a chemical formula of CsNWOClwith an average particle size of 10-90 nm and the nanoparticle-based black contains carbon black particles having a particle size of 20-80 nm.

Transparent polyester film with low visible light transmittance and high infrared-blocking rate and method for making the same

A heat-insulating transparent PVC sheet useful to replace the glass or affixed to the glass is made by a non-coating process for cutting-off infrared and ultra-violet, which production method is an improved traditional process for producing the PVC sheets, and in the production a specific formula of PVC blends containing PVC resin, plasticizer, inorganic heat-insulating particles and other additives is directly used to produce the PVC sheet to keep the properties of PVC and to provide transparency, low haze and an excellent effect for cutting-off infrared and ultra-violet.

Heat-insulating transparent PVC sheet

Growing community of inventors

Taipei, Taiwan

Chia-Ho Cheng