Abstract:
Composite particles are provided that can be used to cure epoxy resins. More particularly, the composite particles have a porous polymeric core particle, a curing agent and/or a curing catalyst for an epoxy resin positioned within the porous polymeric core particle, and a fluoropolymer-containing coating layer around the porous polymeric core particle. Additionally, curable compositions are provided that are mixtures containing an epoxy resin and the composite particles. The epoxy resin typically does not react until the curable composition is heated causing the release of the curing agent and/or curing catalyst from the composite particle. Further, cured compositions formed from the curable composition are provided.
Abstract:
A composition includes a fluorinated or perfluorinated organic solvent, and a fluorinated surfactant of the general formula (1): [Formula should be inserted here] Rf is a perfluoroalkyl group having 1-6 carbon atoms. Each occurrence of R1 and R2 is independently H or CH3, n is 1-3, and x is 1-3.
Abstract:
A thermoplastic copolymer that includes a first divalent unit having a pendent ultraviolet absorbing group and a second divalent unit that is fluorinated. A fluoropolymer composition including the thermoplastic copolymer is also disclosed.
Abstract:
Anionic surfactants have a formula: RfSO2N(H)—CH2CH(CH3)OH; or RfSO2N(H)—(CH2CH2O)xH, where x is an integer from 2-6. Rf is a fluoroalkyl group having 3 to 8 carbon atoms. Neutral surfactants having a formula: (a) RfSO2N[CH2CH(CH3)OH]2; (b) RfSO2N[CH2CH(CH3)OH][(CH2CH2O)nH], where n is an integer from 1-6; (c) RfSO2N(R)[(CH2CH2O)pH], where p is an integer from 2-6, and R is an alkyl group having 1 to 4 carbon atoms; or (d) RfSO2N[(CH2CH2O)qH][(CH2CH2O)mH], where q is an integer from 1-6 and m is an integer from 3-6. Rf is a fluoroalkyl group having 3 to 8 carbon atoms.
Abstract:
A thermoplastic copolymer that includes a first divalent unit having a pendent ultraviolet absorbing group and a second divalent unit that is fluorinated. A fluoropolymer composition including the thermoplastic copolymer is also disclosed.
Abstract:
Described herein is a polymer derived from (a) a fluorinated monomer selected from (i) CnF(2n+1)(CH2)zOC(═O)CR═CH2 wherein n is an integer selected from 1 to 8, z is an integer selected from 1 to 20, and R is H or CH3; and (ii) CnF(2n+1)SO2(NR′)(CH2)zOC(═O)CR═CH2 wherein n is an integer selected from 1 to 8; z is an integer selected from 2 to 20, and R is H or CH3 and R′ is H or C1-C8 alkyl group; and (b) a monomer comprising a phosphonic moiety, along methods thereof and articles comprising such polymer.
Abstract:
Anionic surfactants have a formula: RfSO2N(H)—CH2CH(CH3)OH; or RfSO2N(H)—(CH2CH2O)xH, where x is an integer from 2-6. Rf is a fluoroalkyl group having 3 to 8 carbon atoms. Neutral surfactants having a formula: RfSO2N[CH2CH(CH3)OH]2; (a) RfSO2N[CH2CH(CH3)OH][(CH2CH2O)nH], where n is an integer from 1-6; (b) RfSO2N(R)[(CH2CH2O)pH], where p is an integer from 2-6, and R is an alkyl group having 1 to 4 carbon atoms; or (c) RfSO2N[(CH2CH2O)qH][(CH2CH2O)mH], where q is an integer from 1-6 and m is an integer from 3-6. Rf is a fluoroalkyl group having 3 to 8 carbon atoms. (d)
Abstract:
A composition that includes a blend of a pressure sensitive adhesive and an ultraviolet light-absorbing oligomer. The oligomer has a first divalent unit having a pendent ultraviolet absorbing group and a second divalent unit represented by formula in which R1 is hydrogen or methyl, and R2 is alkyl having from 4 to 20 carbon atom. Articles including the composition are disclosed. For example, an assembly including a barrier film and the composition is also disclosed.
Abstract:
Anionic surfactants have a formula: RfSO2N(H)—CH2CH(CH3)OH; or RfSO2N(H)—(CH2CH2O)xH, where x is an integer from 2-6. Rf is a fluoroalkyl group having 3 to 8 carbon atoms. Neutral surfactants having a formula: RfSO2N[CH2CH(CH3)OH]2; (a) RfSO2N[CH2CH(CH3)OH][(CH2CH2O)nH], where n is an integer from 1-6; (b) RfSO2N(R)[(CH2CH2O)pH], where p is an integer from 2-6, and R is an alkyl group having 1 to 4 carbon atoms; or (c) RfSO2N[(CH2CH2O)qH][(CH2CH2O)mH], where q is an integer from 1-6 and m is an integer from 3-6. Rf is a fluoroalkyl group having 3 to 8 carbon atoms. (d)
Abstract:
A composition that includes a blend of a fluoropolymer and an ultraviolet light-absorbing oligomer. The oligomer has a first divalent unit having a pendent ultraviolet absorbing group and at least one of a second divalent unit that is non-fluorinated or a third divalent unit that is fluorinated. The pendent ultraviolet absorbing group can include a triazine group. The composition can be an extruded film. A method of making such an extruded film is also disclosed.