초록 ▼

Moldable compositions comprising metallic powder and/or ceramic powder, mixed an organic binder are disclosed, which comprises an ether polyamine of the formula (1) and/or a primary amine of the formula (2) : X1[(A1O)nA2X2]m (1) R(OA)rNH2 (2) wherein A1 and A2 are alkylene groups or aryl-substituted

Moldable compositions comprising metallic powder and/or ceramic powder, mixed an organic binder are disclosed, which comprises an ether polyamine of the formula (1) and/or a primary amine of the formula (2) : X1[(A1O)nA2X2]m (1) R(OA)rNH2 (2) wherein A1 and A2 are alkylene groups or aryl-substituted alkylene groups; X1 is a residue of an active hydrogen atom-containing compound having at least 2 active hydrogen atoms; n is at least 1; m is 2-8; and X2 is an amino group represented by [Figure] wherein R1 and R2 are hydrogen atom, alkyl groups or groups of the formula : －(A3－O)k－R3, wherein A3 is an alkylene group, R3 is hydrogen atom or an alkyl group and k is at least 1; R is hydrogen atom or an alkyl groups containing 1-30 carbon atoms, A is an alkylene group containing 1-4 carbon atoms, and r is an integer of at least 1.

대표청구항 ▼

A moldable composition, which comprises (I) a particulate material selected from the group consisting of metallic powders and ceramic powders, and (II) an organic binder comprising at least one amino compound (A) selected from the group consisting of (A1) an ether polyamine represented by the formul

A moldable composition, which comprises (I) a particulate material selected from the group consisting of metallic powders and ceramic powders, and (II) an organic binder comprising at least one amino compound (A) selected from the group consisting of (A1) an ether polyamine represented by the formula: X1[(A1O)nA2X2]m (1) wherein A1 and A2 are independently selected from the group consisting of alkylene groups containing 1-4 carbon atoms and alkylene groups containing 2-4 carbon atoms substituted with an aryl group; X1 is a residue of an active hydrogen atom-containing compound having at least 2 active hydrogen atoms; n is an integer of at least 1; m is an integer of 2-8; and X2 is an amino group represented by [Figure] wherein R1 and R2 are independently selected from the group consisting of hydrogen atom, alkyl groups containing 1-4 carbon atoms and groups having a molecular weight of up to 500 and represented by the formula: －(A3－O)k－R3, wherein A3 is an alkylene group containing 1-4 carbon atoms, R3 is selected from the group consisting of hydrogen atom and alkyl groups containing 1-4 carbon atoms and k is an integer of at least 1; and (A2) a primary amine represented by the formula: R－(O－A)r－NH2(2) wherein R is hydrogen atom or an alkyl group containing 1-30 carbon atoms, A is an alkylene group containing 1-4 carbon atoms, and r is an integer of at least 1, said amino compound (A) having a molecular weight of at least about 1,000 and up to about 1,000,000.