for articles of indefinite length

Full Title

Shaping by internal pressure generated in the material, e.g. swelling or foaming > for articles of indefinite length

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

Child Classifications

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• B29C 44/22 consisting of at least two parts of chemically or physically different materials, e.g. having different densities
• B29C 44/26 using several expanding steps
• B29C 44/28 Expanding the moulding material on continuous moving surfaces
• B29C 44/3 Expanding the moulding material between endless belts or rollers
• B29C 44/32 Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements