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IPC Main Group
B32B 27/00

Layered products essentially comprising synthetic resin

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
LAYERED PRODUCTS
Subclass:
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

15 direct subcodes

Child Classifications

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  • B32B 27/02 in the form of fibres or filaments
  • B32B 27/04 as impregnant, bonding, or embedding substance
  • B32B 27/12 next to a fibrous or filamentary layer
  • B32B 27/14 next to a particulate layer
  • B32B 27/16 specially treated, e.g. irradiated
  • B32B 27/28 comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
  • B32B 27/3 comprising vinyl resin; comprising acrylic resin
  • B32B 27/32 comprising polyolefins
  • B32B 27/34 comprising polyamides
  • B32B 27/36 comprising polyesters
  • B32B 27/38 comprising epoxy resins
  • B32B 27/4 comprising polyurethanes
  • B32B 27/42 comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines

Top Applicants

Top 10 applicants by patent filingsfor class B32, 2013–2023, worldwide · Source: EPO PATSTAT

  1. NITTO DENKO CORPORATION JP 4,719
  2. DNP (DAINIPPON PRINTING COMPANY) 3,989
  3. SAINT-GOBAIN GLASS FR 3,695
  4. NITTO DENKO CORPORATION 3,002
  5. DOW GLOBAL TECHNOLOGIES US 2,809
  6. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 2,679
  7. FUJIFILM JP 2,360
  8. TOPPAN PRINTING COMPANY 2,310
  9. CORNING US 2,168
  10. SEKISUI CHEMICAL COMPANY JP 2,115