Patent ID: 11895952
Assignee: SUMITOMO METAL MINING CO., LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC A  C  Y | IPC A  C

Claim 0:
1. An agricultural and horticultural film having an infrared absorbing layer containing infrared absorbing material ultrafine particles,
wherein the infrared absorbing material ultrafine particles are composite tungsten oxide ultrafine particles,
the composite tungsten oxide ultrafine particles have a XRD peak top intensity ratio value of 0.13 or more based on an XRD peak intensity ratio value of 1 on plane (220) of a silicon powder standard sample (640c produced by NIST),
a dispersed particle size of the composite tungsten oxide ultrafine particles is 10 nm or more and 200 nm or less,
a crystallite size of the composite tungsten oxide ultrafine particles is 10 nm or more and 200 nm or less, and
each of the composite tungsten oxide ultrafine particles is made of a single crystal in which a volume ratio of an amorphous phase in the composite tungsten oxide ultrafine particles is less than 50%.