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 27/06 as the main or only constituent of a layer next to another layer of a specific 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 27/18 characterised by the use of special additives
- 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
- NITTO DENKO CORPORATION JP 4,719
- DNP (DAINIPPON PRINTING COMPANY) 3,989
- SAINT-GOBAIN GLASS FR 3,695
- NITTO DENKO CORPORATION 3,002
- DOW GLOBAL TECHNOLOGIES US 2,809
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 2,679
- FUJIFILM JP 2,360
- TOPPAN PRINTING COMPANY 2,310
- CORNING US 2,168
- SEKISUI CHEMICAL COMPANY JP 2,115