IPIQ

PERFORMING OPERATIONS; TRANSPORTING

B22

CASTING; POWDER METALLURGY

B22C

FOUNDRY MOULDING

1/00

Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds

B22C1/16

characterised by the use of binding agents; Mixtures of binding agents

B22C1/20

of organic agents

B22C1/22

of resins or rosins

B22C1/2233

obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

B22C1/2246

Condensation polymers of aldehydes and ketones