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특허 상세정보

Method for manufacturing fine lead titanate powders

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C01G-023/00    C01G-021/00   
미국특허분류(USC) 423/598 ; 423/619
출원번호 US-0063776 (1987-06-24)
우선권정보 JP-0275618 (1984-12-28)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 13  인용 특허 : 2
초록

A method for manufacturing fine powders of lead titanate which includes the steps of reacting a water-soluble titanium compound or the hydrolysis product of a titanium compound with a lead compound in an aqueous alkaline solution having a pH value not less than 11.2, at a temperature not less than 100°C. to obtain a precipitate of lead titanate fine powder, and then recovering the lead titanate fine powder from the remaining solution. By adjusting the pH and the synthesis temperature at proper values, it is possible to synthesize different forms of lead ...

대표
청구항

A method for manufacturing fine powder of lead titanate (PbTiO3) which comprises: reacting a water soluble titanium compound or hydrolysis product of a hydrolyzable titanium compound with a lead compound and an anqueous alkaline solution at a pH between 11.2 and 13.0 at a temperature not less than 145°C. to obtain a precipitate of lead titanate fine powder, filtering said lead titanate fine powder from the remaining solution, and heating the filtered fine powder to a temperature not lower than 520°C. to obtain acicular-shaped lead titanate powder having ...

이 특허를 인용한 특허 피인용횟수: 13

  1. Dennis, Timothy A.. Coefficient of thermal expansion filler for vanadium-based frit materials and/or methods of making and/or using the same. USP20181110125045.
  2. Dennis, Timothy A.. Coefficient of thermal expansion filler for vanadium-based frit materials and/or methods of making and/or using the same. USP2016069359247.
  3. Dennis, Timothy A.. Coefficient of thermal expansion filler for vanadium-based frit materials and/or methods of making and/or using the same. USP2016109458052.
  4. Hogan, John P.; Dennis, Timothy Alan; Petrmichl, Rudolph Hugo; Kemenah, Greg. Frits for use in vacuum insulating glass (VIG) units, and/or associated methods. USP2018069988302.
  5. Annavarapu Suresh. High purity titanium sputtering target and method of making. USP2000046045634.
  6. Wang, Haidou; Xing, Zhiguo; Xu, Binshi. Lead titanate coating and preparing method thereof. USP2017069673381.
  7. Dennis, Timothy A.. Method of making vacuum insulated glass (VIG) window unit. USP20181010107028.
  8. Takahashi Touru,JPX ; Sugawara Yuuichi,JPX. Resonator and piezoelectric resonance device with grooved lead terminals thereof. USP2001036204593.
  9. Hogan, John P.; Dennis, Timothy Alan; Petrmichl, Rudolph Hugo; Kemenah, Greg. Vacuum insulating glass (VIG) unit with lead-free dual-frit edge seals and/or methods of making the same. USP2017039593527.
  10. Dennis, Timothy A.. Vanadium-based frit materials, and/or methods of making the same. USP20181010087676.
  11. Dennis, Timothy A.. Vanadium-based frit materials, and/or methods of making the same. USP2017109776910.
  12. Dennis, Timothy A.. Vanadium-based frit materials, and/or methods of making the same. USP20190210196299.
  13. Dennis, Timothy A.. Vanadium-based frit materials, binders, and/or solvents and methods of making the same. USP2016049309146.