Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
  • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
  • B01J37/02—Impregnation, coating or precipitation
  • B01J37/024—Multiple impregnation or coating
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D39/00—Filtering material for liquid or gaseous fluids
  • B01D39/14—Other self-supporting filtering material ; Other filtering material
  • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
  • B01D39/2068—Other inorganic materials, e.g. ceramics
  • B01D39/2072—Other inorganic materials, e.g. ceramics the material being particulate or granular
  • B01D39/2075—Other inorganic materials, e.g. ceramics the material being particulate or granular sintered or bonded by inorganic agents
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28B21/00—Methods or machines specially adapted for the production of tubular articles
  • B28B21/70—Methods or machines specially adapted for the production of tubular articles by building-up from preformed elements
  • B28B21/72—Producing multilayer tubes
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
  • Y10T428/131—Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.]
  • Y10T428/1317—Multilayer [continuous layer]

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Ceramic Engineering (AREA)
• Inorganic Chemistry (AREA)
• Life Sciences & Earth Sciences (AREA)
• Geology (AREA)
• Manufacturing & Machinery (AREA)
• Mechanical Engineering (AREA)
• Materials Engineering (AREA)
• Organic Chemistry (AREA)
• Filtering Materials (AREA)
• Powder Metallurgy (AREA)
• Catalysts (AREA)
• Press-Shaping Or Shaping Using Conveyers (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=9071968

Family Applications (1)

Country Status (9)

Families Citing this family (5)

Family Cites Families (3)

• 1971
  • 1971-02-16 FR FR7105158A patent/FR2327090A1/fr active Granted
• 1972
  • 1972-02-01 BE BE778825A patent/BE778825A/fr unknown
  • 1972-02-08 US US05/224,638 patent/US4041195A/en not_active Expired - Lifetime
  • 1972-02-10 LU LU64763A patent/LU64763A1/xx unknown
  • 1972-02-10 IT IT67400/72A patent/IT1011507B/it active
  • 1972-02-11 GB GB662472A patent/GB1477130A/en not_active Expired
  • 1972-02-15 DE DE2206980A patent/DE2206980C1/de not_active Expired - Lifetime
  • 1972-02-15 CA CA134,708A patent/CA1023138A/en not_active Expired
  • 1972-02-16 NL NL7202016A patent/NL7202016A/xx unknown

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