Components of a single-layer photochromic polyvinyl chloride film.

Abstract

OCR 10KL (05 / 05 / 2569) This invention involves the components of a single-layer photochromic polyvinyl chloride film that... The resulting film exhibits good performance, stability, and lifespan. Composition of the photofilm. This chromic material consists of polyvinyl chloride (PVC) and plasticizers. (plasticizer), stabilizer, UV absorber, organic photochromic dyes. (photochromic dye) and an IR heat rejection agent, which has the characteristic feature of photochromic dye. The organic type can be selected from compounds in the spirooxazine or spiropyran groups. (spiropyran)

Claims

OCR 10KL (05 / 05 / 2569) 1. Components of a single-layer photochromic polyvinyl chloride film consisting of: - Polyvinyl chloride (PVC) - Plasticizer in the amount of 30 to 60 parts per hundred by weight of... Polyvinyl chloride - Stabilizer: 0.1 to 5 parts per 100 parts by weight of... Polyvinyl chloride - UV absorber at a concentration of 0.1 to 5 parts per hundred by weight of... Polyvinyl chloride - Organic photochromic dye at a concentration of 0.1 to 5 parts per hundred. The weight of polyvinyl chloride and - IR heat rejection agent: 0.01 to 5 parts per hundred parts by weight. Polyvinyl chloride A unique characteristic is that organic photochromic dyes are selectable from compounds in the group. Spirooxazine or Spiropyran 2. Composition of a single-layer polyvinyl chloride photochromic film according to claim 1, where photochromic dyes The organic type is a compound in the spirooxazine group.

3. Composition of a single-layer polyvinyl chloride photochromic film according to claim 2, where photochromic dyes The organic type is 1-benzyl-3,3-dimethylspirol(indoline-2,3-naphtho(2,1-6][1,4]oxazine(1-benzyl- 3,3-dimethylspiro[indoline-2,3-naphtho[2,1-b][1,4]oxazine) 4. Composition of a single-layer polyvinyl chloride photochromic film according to claim 1, where photochromic dyes The organic type is present in amounts of 1 to 2 parts per hundred parts by weight of polyvinyl chloride.

5. Composition of a single-layer photochromic polyvinyl chloride film according to claim 1, where polyvinyl... Chloride can be selected from polyvinyl chloride with a K-value in the range of 60 to 80.

6. Composition of a single-layer photochromic polyvinyl chloride film according to claim 1, whereby Plasticizers are non-phthalate plasticizers.

7. Components of a single-layer photochromic polyvinyl chloride film, as per claim 6, whereby: The plasticizer is tris(2-ethylhexyl)trimellitate (TOTM).

8. Composition of a single-layer photochromic polyvinyl chloride film according to claim 1, where the enhancing agent... Stability can be selected from barium / zinc stabilizers (Ba / Zn stabilizers), calcium stabilizers, etc. Zinc (Ca / Zn stabilizer), barium / cadmium / zinc (Ba / Cd / Zn) stabilizer, or mixture. of the aforementioned stabilizers.

9. Composition of a single-layer photochromic polyvinyl chloride film according to claim 1, where the absorber... UV radiation can be selected from compounds in the benzophenone and benzotriazole groups. (benzotriazole) or a mixture of such UV-absorbing agents.

10. Composition of a single-layer photochromic polyvinyl chloride film according to claim 1, where the degrading agent... Hot is carbon powder.

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