Branched aromatic sulfide/sulfone polymer production
AssigneePhillips Petroleum Company
InventorsJon F. Geibel, Rex L. Bobsein
Life of this patent
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Abstract
A first reaction mixture of at least one dihalo aromatic sulfone, at least one polyhydroxy aromatic compound, at least one organic amide and at least one alkali metal carbonate is contacted under polymerization conditions including a period of time at a temperature sufficient to form a reaction product, with the resulting product mixture being contacted with at least one polymerizable sulfur source, at least one organic amide, at least one alkali metal carboxylate, and water under polymerization conditions including a period of time at a temperature sufficient to form a branched aromatic sulfide sulfone polymer. The resulting polymers are useful in the production of coatings, films, molded objects, and fibers.
Claims22
A process for producing branched polyarylene sulfide sulfone, said process comprising:
- (a) contacting at least one dihalo aromatic sulfone monomer with at least one polyhydroxy aromatic compound having at least three hydroxy groups, at least one organic amide and at least one alkali metal carbonate at a temperature and pressure and for a time sufficient to produce a first reaction product mixture;
- (b) contacting a reaction mixture comprising:
- (1) said first reaction product mixture,
- (2) at least one polymerizable sulfur source selected from the group consisting of alkali metal sulfides and alkali metal hydrosulfides,
- (3) at least one organic amide,
- (4) at least one alkali metal carboxylate, and
- (5) water
- at a temperature and pressure and for a time sufficient to produce branched polyarylene sulfide sulfone, and
- (c) recovering said branched polyarylene sulfide sulfone from said reaction mixture.
A process for producing branched polyarylene sulfide sulfone, said process comprising:
- (a) contacting bis (p-chlorophenyl) sulfone monomer with phloroglucinol, N-methyl-2-pyrrolidone and sodium carbonate at a temperature of about 175.degree. C. for about 1 to about 3 hours to produce a first reaction product mixture;
- (b) contacting a reaction mixture comprising:
- (1) said first reaction product mixture,
- (2) sodium hydrosulfide,
- (3) N-methyl-2-pyrrolidone,
- (4) sodium acetate, and
- (5) water
- at a temperature of about 200.degree. C. for about 3 hours to produce polyarylene sulfide sulfone, and
- (c) recovering said polyarylene sulfide sulfone from said reaction mixture.
Dependencies are inferred from the claim text.