An aqueous emulsion is made by emulsion polymerizing at least one free-radically polymerizable monomer and one or more di- or higher-functional chain-extending monomers in the presence of an aqueous solution of an oligomer made from a mixture of free-radically polymerizable monomers including acid-functional free-radically polymerizable comonomers, adhesion-promoting free-radically polymerizable comonomers and other free-radically polymerizable comonomers. The aqueous emulsion is substantially free of adipic dihydrazide, has a minimum film forming temperature≤55° C., and on drying has a Koenig hardness of at least 40 sec.

An aqueous emulsion is made by emulsion polymerizing at least one free-radically polymerizable monomer and one or more di- or higher-functional chain-extending monomers in the presence of an aqueous solution of an oligomer made from a mixture of free-radically polymerizable monomers including acid-functional free-radically polymerizable comonomers, adhesion-promoting free-radically polymerizable comonomers and other free-radically polymerizable comonomers. The aqueous emulsion is substantially free of adipic dihydrazide, has a minimum film forming temperature≤55° C., and on drying has a Koenig hardness of at least 40 sec.

The present invention concerns a complex comprising an active agent, a polymer and an iron oxide nanoparticle. The complex may also comprise an active agent. Also described are methods of releasing an active agent from the complex, for instance by irradiating the complex with radio waves. Also described are compositions and articles comprising the complex. Also described are methods of therapy and particularly methods of treatment of cancer involving the complex described herein. In addition, the invention concerns a polymer which is particularly useful in preparing the complex described herein. The polymer is capable of undergoing a phase change at a predetermined temperature, such as 39-42° C. In one embodiment, the polymer is a copolymer of N-isopropylacrylamide, acrylic acid and acrolein. In another embodiment, the polymer is a copolymer of N-isopropylacrylamide acrylamide and allyl mercaptan.

The present invention concerns a complex comprising an active agent, a polymer and an iron oxide nanoparticle. The complex may also comprise an active agent. Also described are methods of releasing an active agent from the complex, for instance by irradiating the complex with radio waves. Also described are compositions and articles comprising the complex. Also described are methods of therapy and particularly methods of treatment of cancer involving the complex described herein. In addition, the invention concerns a polymer which is particularly useful in preparing the complex described herein. The polymer is capable of undergoing a phase change at a predetermined temperature, such as 39-42° C. In one embodiment, the polymer is a copolymer of N-isopropylacrylamide, acrylic acid and acrolein. In another embodiment, the polymer is a copolymer of N-isopropylacrylamide acrylamide and allyl mercaptan.

Copolymers of a polyvinyl butyral backbone with polylactic acid grafts and their compounds are disclosed, which can be used to produce clear, flexible and ductile bio-based films. The copolymers are amorphous and have been shown to maintain clarity, flexibility, and ductility after continuous exposure to thermal aging at 80 C. for one week.

Copolymers of a polyvinyl butyral backbone with polylactic acid grafts and their compounds are disclosed, which can be used to produce clear, flexible and ductile bio-based films. The copolymers are amorphous and have been shown to maintain clarity, flexibility, and ductility after continuous exposure to thermal aging at 80 C. for one week.

An aqueous emulsion is made by emulsion polymerizing at least one free-radically polymerizable monomer and one or more di- or higher-functional chain-extending monomers in the presence of an aqueous solution of an oligomer made from a mixture of free-radically polymerizable monomers including acid-functional free-radically polymerizable comonomers, adhesion-promoting free-radically polymerizable comonomers and other free-radically polymerizable comonomers. The aqueous emulsion is substantially free of adipic dihydrazide, has a minimum film forming temperature55 C., and on drying has a Koenig hardness of at least 40 sec.

An aqueous emulsion is made by emulsion polymerizing at least one free-radically polymerizable monomer and one or more di- or higher-functional chain-extending monomers in the presence of an aqueous solution of an oligomer made from a mixture of free-radically polymerizable monomers including acid-functional free-radically polymerizable comonomers, adhesion-promoting free-radically polymerizable comonomers and other free-radically polymerizable comonomers. The aqueous emulsion is substantially free of adipic dihydrazide, has a minimum film forming temperature55 C., and on drying has a Koenig hardness of at least 40 sec.

A high pressure polymerization process to form an ethylene-based polymer, the process comprising at least the following step: polymerizing a reaction mixture comprising ethylene and at least one comonomer, using a reactor system comprising a reactor configuration, and the following: (A) at least two reaction zones, a zone (reaction zone 1) and an ith zone (reaction zone i where i?2), (B) at least two ethylene-based feed streams, each comprising a percentage of the total make-up ethylene fed to the polymerization process, and wherein a first stream is sent to reaction zone 1 and a second stream is sent to reaction zone i; (C) a control system to control the percentage of the total make-up ethylene in the stream sent to reaction zone 1, and the percentage of the total make-up ethylene in the stream sent to reaction zone i, and wherein the ratio (Q) of the molar concentration of the at least one comonomer fed to the first reaction zone, to the molar concentration of comonomer in the sum of all ethylene-based feeds to the reactor configuration, meets the following Equation 1: 0.23 ln(r1)?2.16?Q??0.25 ln(r1)+2.15 (Equation 1); and wherein the comonomer has a reactivity ratio (r1) as follow: 0.3?r1?5.0, and a boiling point (1 atm)?150? C.

A high pressure polymerization process to form an ethylene-based polymer, the process comprising at least the following step: polymerizing a reaction mixture comprising ethylene and at least one comonomer, using a reactor system comprising a reactor configuration, and the following: (A) at least two reaction zones, a zone (reaction zone 1) and an ith zone (reaction zone i where i?2), (B) at least two ethylene-based feed streams, each comprising a percentage of the total make-up ethylene fed to the polymerization process, and wherein a first stream is sent to reaction zone 1 and a second stream is sent to reaction zone i; (C) a control system to control the percentage of the total make-up ethylene in the stream sent to reaction zone 1, and the percentage of the total make-up ethylene in the stream sent to reaction zone i, and wherein the ratio (Q) of the molar concentration of the at least one comonomer fed to the first reaction zone, to the molar concentration of comonomer in the sum of all ethylene-based feeds to the reactor configuration, meets the following Equation 1: 0.23 ln(r1)?2.16?Q??0.25 ln(r1)+2.15 (Equation 1); and wherein the comonomer has a reactivity ratio (r1) as follow: 0.3?r1?5.0, and a boiling point (1 atm)?150? C.