DIFF Subgroup Additional Only
C09K 2200/0675 Melamine-formaldehyde condensation polymers
Full Title
Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers > Macromolecular organic compounds, e.g. prepolymers > obtained otherwise than by reactions involving carbon-to-carbon unsaturated bonds > Condensation polymers of aldehydes or ketones > Melamine-formaldehyde condensation polymers