IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0795637
(2001-02-28)
|
우선권정보 |
JP-0332532 (1994-12-13) |
발명자
/ 주소 |
- Yamada, Katsuyuki
- Iwasaki, Hiroko
- Ide, Yukio
- Harigaya, Makoto
- Kageyama, Yoshiyuki
- Deguchi, Hiroshi
- Takahashi, Masaetsu
- Hayashi, Yoshitaka
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
12 인용 특허 :
15 |
초록
▼
A sputtering target for fabricating a recording layer of a phase-change type optical recording medium contains a compound or mixture including as constituent. elements Ag, In, Te and Ob with the respective atomic percent (atom. %) of α, β, γ and δ thereof being in the relationship of 2≤α≤30, 3≤β≤30,
A sputtering target for fabricating a recording layer of a phase-change type optical recording medium contains a compound or mixture including as constituent. elements Ag, In, Te and Ob with the respective atomic percent (atom. %) of α, β, γ and δ thereof being in the relationship of 2≤α≤30, 3≤β≤30, 10≤γ≤50, 15≤δ≤83 and α+β+γ+δ=100, and a method of producing the above sputtering target is provided. A phase-change type optical recording medium includes a recording layer containing as constituent elements Ag, In, To and Sb with the respective atomic percent of α, β, γ and δ thereof being in the relationship of 0<α≤30, 0<β≤30, 10≤γ≤50, 10≤δ≤80, and α+β+γ+δ=100, and is capable of recording and erasing information by utilizing the phase changes of a recording material in the recording layer. A method of fabricating the above phase-change type optical recording medium is also provided.
대표청구항
▼
A sputtering target for fabricating a recording layer of a phase-change type optical recording medium contains a compound or mixture including as constituent. elements Ag, In, Te and Ob with the respective atomic percent (atom. %) of α, β, γ and δ thereof being in the relationship of 2≤α≤30, 3≤β≤30,
A sputtering target for fabricating a recording layer of a phase-change type optical recording medium contains a compound or mixture including as constituent. elements Ag, In, Te and Ob with the respective atomic percent (atom. %) of α, β, γ and δ thereof being in the relationship of 2≤α≤30, 3≤β≤30, 10≤γ≤50, 15≤δ≤83 and α+β+γ+δ=100, and a method of producing the above sputtering target is provided. A phase-change type optical recording medium includes a recording layer containing as constituent elements Ag, In, To and Sb with the respective atomic percent of α, β, γ and δ thereof being in the relationship of 0<α≤30, 0<β≤30, 10≤γ≤50, 10≤δ≤80, and α+β+γ+δ=100, and is capable of recording and erasing information by utilizing the phase changes of a recording material in the recording layer. A method of fabricating the above phase-change type optical recording medium is also provided. and (3) substituted aryl diesters having 10-20 carbon atoms and polyhydric alcohols containing 2-20 carbon atoms; and (b) about 3 to about 150 parts by weight IR absorbing inorganic black pigments or IR absorbing inorganic black particles per million parts by weight of said polymer; wherein said inorganic black pigments or inorganic black particles, when uniformly dispersed in said polymer, are not visible to the naked eye. 7. The polymeric bottle preform of claim 6, wherein said inorganic black pigments are greater than about 0.5 micron in the largest dimension. 8. The polymeric bottle preform of claim 6, wherein said polyester polymer is a polyethylene terephthalate and isophthalate copolyster. 9. A plastic bottle capable of absorbing IR radiation, said bottle comprising a polymeric composition useful for absorbing IR radiation, the polymeric composition comprising: (a) a polymer comprising at least 80% by weight polyester polymer, wherein said polyester polymer is selected from the group consisting of polyester polymers formed from: (1) dicarboxylic acids having 2-40 carbon atoms and polyhydric alcohols containing 2-20 carbon atoms; (2) alkyl diesters having 4-20 carbon atoms and polyhydric alcohols containing 2-20 carbon atoms; and (3) substituted aryl diesters having 10-20 carbon atoms and polyhydric alcohols containing 2-20 carbon atoms; and (b) about 3 to about 150 parts by weight IR absorbing inorganic black pigments or IR absorbing inorganic black particles per million parts by weight of said polymer; wherein said inorganic black pigments or inorganic black particles, when uniformly dispersed in said polymer, are not visible to the naked eye. 10. The plastic bottle of claim 9, wherein said inorganic black pigments are greater than about 0.5 micron in the largest dimension. 11. The plastic bottle of claim 9, wherein said polyester polymer is a polyethylene terephthalate and isophthalate copolyester. 12. A method of blow-molding a bottle preform into a plastic bottle, said method comprising: (A) heating a bottle preform using IR radiation to a sufficient temperature such that the preform can be blow-molded into an acceptable plastic bottle having no pearlescence and no heat induced crystallization, and (B) blow-molding said preform into said plastic bottle; wherein said bottle preform comprises: (a) a polymer comprising at least 80% by weight polyester polymer, wherein said polyester polymer is selected from the group consisting of polyester polymers formed from: (1) dicarboxylic acids having 2-40 carbon atoms and polyhydric alcohols containing 2-20 carbon atoms; (2) alkyl diesters having 4-20 carbon atoms and polyhydric alcohols containing 2-20 carbon atoms; and (3) substituted aryl diesters having 10-20 carbon atoms and polyhydric alcohols containing 2-20 carbon atoms; and (b) about 3 to about 150 parts by weight IR absorbing inorganic black pigments or IR absorbing inorganic black particles per million parts by weight of said polymer; wherein said inorganic black pigments or inorganic black particles, when uniformly dispersed in said polymer, are not visible to the naked eye. 13. The method of claim 12, wherein said inorganic black pigments are greater than 0.5 micron in the largest dimension. 14. The method of claim 12, wherein said polyester polymer is a copolyester of polyethylene terephthalate and isophthalate copolyester. 15. A method of heating a plastic bottle preform, said method comprising: exposing the plastic bottle preform to infrared radiation for a sufficient time to heat the plastic bottle preform to greater than ambient temperature, said plastic bottle preform comprising: (a) a polymer comprising at least 80% by weight polyester polymer, wherein said polyester polymer is selected from the group consisting of polyester polymers formed from: (1) dicarboxylic acids having 2-40 carbon atoms and polyhydric alcohols containing 2-20 carbon atoms; (2) alkyl diesters h
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