公开(公告)号：US20180313694A1

公开(公告)日：2018-11-01

申请号：US15966791

申请日：2018-04-30

Applicant: HALLSTAR INNOVATIONS CORP.

Inventor： Shengkui Hu ,  Hui Feng ,  Meng Wei ,  Zhiliang Jin ,  Ruipeng Wang

IPC: G01J3/42 ,  G01J1/50 ,  G01N21/25

CPC classification number: G01J3/42 ,  G01J1/50 ,  G01N21/25 ,  G01N21/33 ,  G01N21/8422

Abstract: The present disclosure relates, according to some embodiments, to a method of determining a quantitatively measured photoprotection of a photoprotective composition, the method comprising: (a) distributing the photoprotective composition in a position in between a drawdown bar and at least one substrate to produce a distributed photoprotective composition; (b) drawing down the distributed photoprotective composition to a thickness on at least one substrate to produce a drawn down sample film; (c) drying the drawn down sample film to produce a dried sample film; (d) measuring a UV absorption of the dried sample film to produce a UV absorption spectrum; (e) determining the quantitatively measured photoprotection of the photoprotective composition from the UV absorption spectrum. The present disclosure relates, according to some embodiments, to a method of determining a quantitatively measured photoprotection of a photoprotective composition, the method comprising: (a) spraying at least one coat of the photoprotective composition to a thickness on at least one surface of a substrate to produce a spray coated substrate sample; (b) drying the spray coated substrate sample to produce a dried sample film; (c) measuring a UV absorption of the dried sample film to produce a UV absorption spectrum; and (d) determining the quantitatively measured photoprotection of the photoprotective composition from the UV absorption spectrum.

公开(公告)号：US10801892B2

公开(公告)日：2020-10-13

申请号：US15966791

申请日：2018-04-30

Applicant: HALLSTAR INNOVATIONS CORP.

Inventor： Shengkui Hu ,  Hui Feng ,  Meng Wei ,  Zhiliang Jin ,  Ruipeng Wang

IPC: G01J3/42 ,  G01N21/25 ,  G01J1/50 ,  G01N21/84 ,  G01N21/33

Abstract: The present disclosure relates, according to some embodiments, to a method of determining a quantitatively measured photoprotection of a photoprotective composition, the method comprising: (a) distributing the photoprotective composition in a position in between a drawdown bar and at least one substrate to produce a distributed photoprotective composition; (b) drawing down the distributed photoprotective composition to a thickness on at least one substrate to produce a drawn down sample film; (c) drying the drawn down sample film to produce a dried sample film; (d) measuring a UV absorption of the dried sample film to produce a UV absorption spectrum; (e) determining the quantitatively measured photoprotection of the photoprotective composition from the UV absorption spectrum.