Classifications

• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H5/00—Special paper or cardboard not otherwise provided for
  • D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
  • D21H5/18—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of inorganic fibres with or without cellulose fibres
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
  • D21H13/36—Inorganic fibres or flakes
  • D21H13/38—Inorganic fibres or flakes siliceous
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
  • D21H13/36—Inorganic fibres or flakes
  • D21H13/38—Inorganic fibres or flakes siliceous
  • D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass fibres

Landscapes

• Chemical & Material Sciences (AREA)
• Inorganic Chemistry (AREA)
• Nonwoven Fabrics (AREA)
• Paper (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=8506522

Family Applications (1)

Country Status (9)

• 1972
  • 1972-07-12 FI FI199572A patent/FI50544C/fi active
• 1973
  • 1973-07-07 DE DE19732334712 patent/DE2334712A1/de active Pending
  • 1973-07-11 FR FR7325365A patent/FR2192212B1/fr not_active Expired
  • 1973-07-11 SE SE7309725A patent/SE390533B/xx unknown
  • 1973-07-11 GB GB3303673A patent/GB1394143A/en not_active Expired
  • 1973-07-11 IT IT6906973A patent/IT996580B/it active
  • 1973-07-12 NL NL7309752A patent/NL7309752A/xx not_active Application Discontinuation
  • 1973-07-12 BE BE133382A patent/BE802237A/xx not_active IP Right Cessation
  • 1973-07-12 DK DK386573A patent/DK136487B/da unknown

Also Published As

Similar Documents

Legal Events