3928138

Information

• Patent Grant
• 3928138

• References
• Source

• Patent Number

  3,928,138

• Date Filed

  Not available

• Date Issued

  Tuesday, December 23, 1975
  48 years ago

• CPC

  • D06N3/14 - with polyurethanes
  • A01C1/044 - Sheets, multiple sheets or mats
  • A01C1/046 - Carrier compositions
  • A01G31/001 - Soilless culture substrates
  • A61L15/425 - Porous materials
  • B29C44/326 - Joining the preformed parts
  • B29C44/5654 - Subdividing foamed articles to obtain particular surface properties
  • B32B5/20 - foamed in situ
  • C08G18/48 - Polyethers
  • C08G18/4833 - Polyethers containing oxyethylene units
  • C08J9/0004 - Use of compounding ingredients, the chemical constitution of which is unknown, broadly defined, or irrelevant
  • C08J9/02 - using blowing gases generated by the reacting monomers or modifying agents during the preparation or modification of macromolecules
  • C12N11/08 - carrier being a synthetic polymer
  • C12P19/20 - produced by the action of an exo-1,4 alpha-glucosidase
  • C12P37/06 - by desacylation of the substituent in the 6 position
  • A01G2031/003 - with foam substrates
  • C08G2101/0083 - prepared using water as the sole blowing agent
  • C08G2310/00 - Agricultural use or equipment
  • C08J2375/00 - Characterised by the use of polyureas or polyurethanes Derivatives of such polymers
  • C08J2375/04 - Polyurethanes
  • C08J2375/08 - from polyethers
  • Y02P60/216 - Aquaponics or hydroponics

• US Classifications

  • 435 - Chemistry: molecular biology and microbiology