Patent classifications
C08G75/00
Dual cure polythioether
Compositions that are curable to polythioether polymers are provided, comprising: a) a dithiol monomer; b) a diene monomer; c) a radical cleaved photoinitiator; d) a peroxide; and e) an amine; where the peroxide and amine together are a peroxide-amine redox initiator. In some embodiments, the amine is a tertiary amine. In some embodiments, the amine is selected from the group consisting of dihydroxyethyl-p-toluidine, N,N-diisopropylethylamine, and N, N, N, N, N-pentamethyl-diethylenetriamine. In some embodiments, the peroxide is selected from the group consisting of di-tert-butyl peroxide, methyl ethyl ketone peroxide, and benzoyl peroxide. In some embodiments, the composition may additionally comprise a polythiol monomer having three or more thiol groups.
Dual cure polythioether
Compositions that are curable to polythioether polymers are provided, comprising: a) a dithiol monomer; b) a diene monomer; c) a radical cleaved photoinitiator; d) a peroxide; and e) an amine; where the peroxide and amine together are a peroxide-amine redox initiator. In some embodiments, the amine is a tertiary amine. In some embodiments, the amine is selected from the group consisting of dihydroxyethyl-p-toluidine, N,N-diisopropylethylamine, and N, N, N, N, N-pentamethyl-diethylenetriamine. In some embodiments, the peroxide is selected from the group consisting of di-tert-butyl peroxide, methyl ethyl ketone peroxide, and benzoyl peroxide. In some embodiments, the composition may additionally comprise a polythiol monomer having three or more thiol groups.
Dual Cure Sealants
Compositions that are curable by free radical redox reactions are disclosed. Free radical curing reactions between polythiols and polyalkyenyls are initiated by the reaction of metal complexes and organic peroxides. The compositions are useful as sealants.
PAEK/PPSU/PES compositions
A composition [composition (C)] comprising from 1 to 90% by weight (wt. %) of at least one poly(aryl ether ketone) [(PAEK) polymer], from 1 to 25 wt. % of at least one polyphenylsulfone polymer [(PPSU) polymer], from 1 to 90 wt. % of at least one polyethersulfone polymer [(PES)polymer], and from 0.1 to 50 wt. % of at least one reinforcing filler, where all wt. % are based on the total weight of the composition (C) and the (PES) polymer has as melt flow rate (MFR) at a temperature of 380 C. and under a load of 2.16 kg according to ASTM D1238 of greater than 35 g/10 min.
PAEK/PPSU/PES compositions
A composition [composition (C)] comprising from 1 to 90% by weight (wt. %) of at least one poly(aryl ether ketone) [(PAEK) polymer], from 1 to 25 wt. % of at least one polyphenylsulfone polymer [(PPSU) polymer], from 1 to 90 wt. % of at least one polyethersulfone polymer [(PES)polymer], and from 0.1 to 50 wt. % of at least one reinforcing filler, where all wt. % are based on the total weight of the composition (C) and the (PES) polymer has as melt flow rate (MFR) at a temperature of 380 C. and under a load of 2.16 kg according to ASTM D1238 of greater than 35 g/10 min.
Leuco polymers as bluing agents in laundry care compositions
A method of obtaining a leuco polymer, the method comprising the step of reacting a reactive leuco compound with a polymer to form the leuco polymer. The reactive leuco compound comprises at least one leuco moiety and at least one nucleophilic group. The polymer comprises at least one group capable of reacting with said nucleophilic group. The said leuco moiety has a maximum molar extinction coefficient at a wavelength in the range 400 to 750 nm of less than 1000 M.sup.1 cm.sup.1. Laundry care compositions comprising the leuco polymer and methods of treating textiles with such laundry care compositions.
Leuco polymers as bluing agents in laundry care compositions
A method of obtaining a leuco polymer, the method comprising the step of reacting a reactive leuco compound with a polymer to form the leuco polymer. The reactive leuco compound comprises at least one leuco moiety and at least one nucleophilic group. The polymer comprises at least one group capable of reacting with said nucleophilic group. The said leuco moiety has a maximum molar extinction coefficient at a wavelength in the range 400 to 750 nm of less than 1000 M.sup.1 cm.sup.1. Laundry care compositions comprising the leuco polymer and methods of treating textiles with such laundry care compositions.
Method of producing amine adduct of conductive composite, method of producing amine adduct liquid of conductive composite, and method of producing conductive film
Provided is a method of producing an amine adduct of a conductive composite, including: adding an amine compound to a conductive polymer dispersion liquid which contains water and a conductive composite containing a conjugated conductive polymer and a polyanion at a mass ratio of the conjugated conductive polymer to the polyanion of 1:3 to 1:7.5 to precipitate an amine adduct of the conductive composite.
Method of producing amine adduct of conductive composite, method of producing amine adduct liquid of conductive composite, and method of producing conductive film
Provided is a method of producing an amine adduct of a conductive composite, including: adding an amine compound to a conductive polymer dispersion liquid which contains water and a conductive composite containing a conjugated conductive polymer and a polyanion at a mass ratio of the conjugated conductive polymer to the polyanion of 1:3 to 1:7.5 to precipitate an amine adduct of the conductive composite.
POLYPHENYLENE SULFIDE POLYMER COMPOSITIONS AND CORRESPONDING ARTICLES
Described herein are polyphenylene sulfide (PPS) polymer compositions including a low MFR PPS polymer and E-CR glass fibers. It was surprisingly discovered that the PPS polymer compositions had significantly improved retention of tensile strength and tensile elongation after water aging (water aging performance), relative to corresponding PPS polymer compositions having E glass fibers instead of the E-CR glass fibers. Moreover, it was also discovered that PPS polymer compositions including E-CR glass fibers in conjunction with a low MFR PPS polymer and a high MFR PPS polymer had unexpected synergies with respect to water aging performance, relative to corresponding polymer compositions including E-CR glass fibers and either a low MFR PPS polymer or a high MFR PPS. Due at least in part to the improved water aging performance, the PPS polymer compositions can be advantageously incorporated into application settings where the polymer composition is in contact with water. Examples include, but are not limited to, drinking water applications.