Articles comprising two or more components, e.g. co-extruded layers

Introduced: January 2019

Full Title

Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor > Articles comprising two or more components, e.g. co-extruded layers

Classification Context

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
Subclass:: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

Related Keywords

EXTRUDING of layers in the making of layered products from plastics or substances in a plastic state in generalmaking layered products from plastics or substances in a plastic state with a layer of HONEYCOMBlaminates of plastics or substances in a plastic stateproduction of LAYERED PRODUCTS consisting of macromolecular substancesmanufacture of MULTICOLOUR articles from plastics or substances in a plastic state in general

2 direct subcodes

Child Classifications

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B29C 48/17 the components having different colours
B29C 48/18 the components being layers

Top Applicants

Top 10 applicants by patent filingsfor class B29, 2013–2023, worldwide · Source: EPO PATSTAT

HEWLETT-PACKARD DEVELOPMENT COMPANY US 3,802
BOEING COMPANY US 3,087
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN FR 2,315
SUMITOMO RUBBER IND 1,784
GE (GENERAL ELECTRIC COMPANY) US 1,663
CANON 1,658
3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 1,587
TORAY INDUSTRIES JP 1,555
BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,470
LG CHEM KR 1,415