INDEXING SCHEME ASSOCIATED WITH SUBCLASSES , OR , RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS

Introduced: January 1985

Classification Context

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
Subclass:: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES , OR , RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS

Description

B29K is an indexing scheme that classifies materials used in plastic and polymer processing rather than the processing methods themselves. It covers moulding materials (thermoplastics, thermosetting resins, elastomers), reinforcement materials (fibres, fabrics, mats), fillers (mineral, organic), and preformed components such as inserts used in moulding operations. This classification is used as a supplementary index to other B29 subclasses to denote the specific material composition of plastic workpieces and related manufacturing inputs.

Scope Notes

Glossary: Rubber rubbers (a) natural or conjugated diene rubbers. (b) rubber in general (for a specific rubber, other than a natural rubber or a conjugated diene rubber, see the group provided for such macromolecular compounds). Block blocks Part of a polymer composed by a same monomeric unity. Reinforcement reinforcements Structure in the form of fibres, wires, rods, bars, sections, plates or blocks, which improves the strength of an article Filler fillers Relatively inert substance in the form of particles, powder, beads, flakes or spheres, which improves the physical properties or increases the bulk or weight of an article Preformed part preformed parts Any material, being completely shaped to have a determined form and which is not used as a reinforcement, e.g. wires or nets forced only into the surface of an article Insert inserts Preformed part incorporated in an article during moulding

Related Keywords

COMPOSITIONS used as moulding materials, reinforcements, fillers, or for preformed parts, when working plastics or substances in a plastic statecompositions used as moulding materials, reinforcements, fillers, or for preformed parts, when working PLASTICS or substances in a plastic state

144 direct subcodes

Child Classifications

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B29K 1/00 Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
B29K 101/00 Use of unspecified macromolecular compounds as moulding material
B29K 103/00 Use of resin-bonded materials as moulding material
B29K 105/00 Condition, form or state of moulded material
B29K 19/00 Use of rubber not provided for in a single one of main groups , as moulding material
B29K 201/00 Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as reinforcement
B29K 207/00 Use of natural rubber as reinforcement
B29K 209/00 Use of rubber derived from conjugated dienes, as reinforcement
B29K 21/00 Use of unspecified rubbers as moulding material
B29K 219/00 Use of rubber not provided for in a single one of main groups or , as reinforcement
B29K 221/00 Use of unspecified rubbers as reinforcement
B29K 223/00 Use of polyalkenes as reinforcement
B29K 225/00 Use of polymers of vinyl-aromatic compounds as reinforcement
B29K 227/00 Use of polyvinylhalogenides as reinforcement
B29K 229/00 Use of polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals as reinforcement
B29K 23/00 Use of polyalkenes as moulding material
B29K 231/00 Use of polyvinylesters as reinforcement
B29K 233/00 Use of polymers of unsaturated acids or derivatives thereof, as reinforcement
B29K 235/00 Use of polymers of unsaturated polycarboxylic acids as reinforcement
B29K 245/00 Use of polymers of unsaturated cyclic compounds having no unsaturated aliphatic groups in a side-chain, e.g. coumarone-indene resins, as reinforcement