초록 ▼

Resins are prepared from polysulfone and polyethersulfone polymers that bear functional groups derived from compounds that are condensation products of amino-phenols and acid anhydrides. The polymers are prepared by coreacting aromatic compounds holding two hydroxyl groups, aromatic compounds holdin

Resins are prepared from polysulfone and polyethersulfone polymers that bear functional groups derived from compounds that are condensation products of amino-phenols and acid anhydrides. The polymers are prepared by coreacting aromatic compounds holding two hydroxyl groups, aromatic compounds holding two active halogen groups, and the condensation product of amino-phenol and acid anhydride, the condensation product holding one hydroxyl group. The resulting product has a molecular weight between about 1,000 and 40,000, preferably between about 5,000 and 30,000, and can be cross-linked to form a resin that is thermoplastic and solvent resistant.

대표청구항 ▼

A cross-linkable polysulfone or polyethersulfone polymer formed by reacting: [Figure] (1) n +1 moles ZRZ and (2) n moles OHR′OH, (3) wherein X is selected from the group consisting of [Figure] R″is hydrogen or a lower alkyl, Z is selected from the group consisting of fluorine, chlorine, and bromine,

A cross-linkable polysulfone or polyethersulfone polymer formed by reacting: [Figure] (1) n +1 moles ZRZ and (2) n moles OHR′OH, (3) wherein X is selected from the group consisting of [Figure] R″is hydrogen or a lower alkyl, Z is selected from the group consisting of fluorine, chlorine, and bromine, R is an aromatic radical, R′is an aromatic radical, at least one of said aromatic radicals R and R′contains a diaryl radical wherein the aryl rings are connected by a sulfone linkage, and n is selected so that said polymer has a molecular weight between about 1,000 and about 40,000.