摘要:
A copolymer essentially consisting of : from 50 to 99 mole % of at least one recurring unit (R 1 ), based on the total mole amount of the recurring units (R 1 ) and (R 2 ), wherein the recurring unit (R 1 ) is derived from incorporation of 4,4"-terphenyl-p-diol and a dihaloaryl sulfone compound and from 1 to 50 mole % of at least one recurring unit (R 2 ), based on the total mole amount of the recurring units (R 1 ) and (R 2 ), wherein the recurring unit (R 2 ) is derived from incorporation of 4,4"-terphenyl-p-diol and a dihaloaryl ketone compound.
摘要:
Di(amido(alkyl)phenol) compounds and upgraded molecular weight polymers made from such compounds have particular utility in coating compositions, especially for use on food and beverage contact substrates that are formed into or will be formed into containers or container components.
摘要:
A poly(phenylene ether) copolymer comprising about 5 to 40 mole percent repeat units derived from 2-phenylphenol and 60 to about 95 mole percent repeat units derived from 2,6-dimethylphenol, wherein the poly(phenylene ether) copolymer has a weight average molecular weight of at least 8,000 atomic mass units, is disclosed. Also disclosed is a method of preparing the poly(phenylene ether) copolymer, the method comprising oxidatively copolymerizing a monomer mixture comprising about 5 to 40 mole percent 2-phenylphenol and about 60 to about 95 mole percent 2,6-dimethylphenol in the presence of a solvent, molecular oxygen, and a polymerization catalyst comprising a metal ion and at least one amine ligand to form a solution of the poly(phenylene ether) copolymer in the solvent, wherein a ratio of total moles of 2-phenylphenol and 2,6-dimethylphenol to moles of metal ion is about 10:1 to about 1200:1.
摘要:
The invention provides aqueous coating composition having freeze thaw stability, comprising: (a) at least one latex polymer derived from at least one monomer and at least one reactive surfactant of the formula R 1 O- (CH 2 CHR 2 O) x -(CH 2 CH 2 O) y -(CH 2 CHR 3 O) z -R 4 where R 1 is either alkyl, aryl, alkylaryl, or aralkylaryl of 8 - 30 carbon atoms, R 2 is - CH 2 OCH 2 CH=CH 2 (AGE); R3 is either H, CH 3 , or CH 2 CH 3 ; R 4 is H or -SO3M or -PO3M where M is H or K, Na, NH 4 , NR 4 , alkanolamine, or other cationic species and x = 2 - 100; y = 4 - 200 and z = 0 - 50.
摘要:
An epoxybenzyl-terminated poly(arylene ether) has the structure R-W-R wherein W is a divalent poly(arylene ether) residue terminated with phenolic oxygen atoms, and R is an epoxybenzyl group, wherein each occurrence of R is the same or different. The epoxybenzyl terminated poly(arylene ether) is formed by reacting a peroxide-containing reagent with a vinybenzyl-terminated poly(arylene ether). Also disclosed is a curable composition including the epoxybenzyl-terminated poly(arylene ether)s, a curing promoter, and, optionally, an auxiliary epoxy resin. The curable composition is useful for the preparation of composites, and in particular, composites used in manufacturing printed circuit boards.
摘要:
Partially hydrogenated bisphenol-A based polymers. Coating compositions for food or beverage containers and medical devices, including a partially hydrogenated bisphenol-A based polymer. Food or beverage containers and medical devices coated with partially hydrogenated bisphenol-A based polymers. Food or beverage containers and medical devices made from partially hydrogenated bisphenol-A based polymers.
摘要:
A method of separating a poly(arylene ether) from a solvent includes treating a poly(arylene ether)-containing solution with a devolatilizing extruder to form an extruded composition, and cooling the extruded composition with a cooling device that does not immerse the extruded composition in water. The composition may be used to isolate a poly(arylene ether) from the solvent-containing reaction mixture in which it is prepared, or to remove solvent from a multi-component poly(arylene ether)-containing thermoplastic composition.
摘要:
A polymer electrolyte being configured to provide ion transport, said polymer electrolyte comprising: a main-chain first repeating unit configured to provide a primary ion coordinating site, a plurality of main-chain repeating units being arranged as a substantially helical ion coordinating channel; said polymer electrolyte further comprising and being characterised by: a main-chain second repeating unit being interdispersed between said main-chain first repeating unit, said second repeating unit being configured to provide a secondary ion coordinating site within said coordinating channel, said secondary ion coordinating site being less coordinating then said primary ion coordinating site; wherein said polymer electrolyte is configured to provide ion transport within said coordinating channel involving ion transport between said primary ion coordinating site and said secondary ion coordinating site.