A resin produced by a conventional technique has a weak nature in terms of hydrolysis resistance. For example, in a case where the resin produced by a conventional technique is used in an area with a highly humid climate such as Japan for a long period of time, deterioration of the resin due to hydrolysis becomes a concern. A resin composition is described that is optimized in the molecular structure design of the resin and in the catalyst in order to improve the hydrolysis resistance. Specifically, the resin composition contains (1) a copolymer of a vinyl compound having two or more epoxy groups, a carboxylic acid anhydride, and a transesterification reaction catalyst, or (2) a copolymer of a vinyl compound having two or more carboxylic acid anhydride groups, an epoxy, and a transesterification reaction catalyst.

Disclosed herein are polymers, copolymers and polymer systems based on polypropiolactones which can be biodegradable and can enhance the recyclability of polymer systems, which can be functionalized to introduce desired functionality into the polymers and/or which may optionally be prepared from renewable raw materials. Disclosed are novel functionalized beta propiolactones. Some of the novel functionalized beta propiolactones have functional groups bound to the ring structure of the lactone that provide improved polymer systems. Disclosed are novel homopolymers of the functionalized beta propiolactones. Disclosed are novel copolymers based on the functionalized beta propiolactones with beta propiolactone or other monomers which copolymerize with the functionalized beta propiolactones.

Two-component polycarbonate-based composite products are contemplated in which the composite is formed as the cured reaction product of a polycarbonate polyurethane dispersed within an aqueous colloid along with a coalescent agent, a secondary polymer additive dispersed within the aqueous colloid, and a secondary polymer crosslinker. The aqueous colloidal dispersion may be applied as a coating to a surface that is intended to be coated and subsequently permitted to react and dry, resulting in the formation of a coating at the location at which it is applied. The composite product may be further formulated with additional constituents to be optically clear, glossy, and/or pigmented.

The present invention relates to novel (per)fluoropolyether (PFPE) polymer derivatives, a method for their manufacture and their use for providing an anti-soiling coating.

Methods of manufacturing electronic devices employing wet-strippable underlayer compositions comprising a condensate and/or hydrolyzate of a polymer comprising as polymerized units one or more first unsaturated monomers having a condensable silicon-containing moiety, wherein the condensable silicon-containing moiety is pendent to the polymer backbone, and one or more condensable silicon monomers are provided.

A polymeric resin that includes a photocured reaction product of at least one urethane (meth)acrylate polymer that includes at least one polycarbonate unit; at least one monofunctional monomer; and at least one crosslinking agent.

The present disclosure relates to a responsive polymer film, a method of preparing the responsive polymer film, and a sensor using the polymer film.

Compounds and compositions are provided which are useful in additive printing, particularly additive printing techniques such as stereolithography (SLA), wherein a composition of one or more photocurable compounds, such as a compound with multiple ethylenically unsaturated groups and a compound with multiple thiol groups, is photopolymerized, optionally in the presence of two or more thermocurable compounds which are reactive with one another and are subjected to thermopolymerization, to form a manufactured article in solid form.

Embodiments of the present disclosure pertain to a composition that includes a rotaxane. The rotaxane includes a plurality of macrocyclic rings and a polymer with a molecular weight below 10,000 Da that is covalently appended to one or more sterically hindered molecules. The cavities of the macrocyclic rings are threaded onto the polymer. The plurality of threaded macrocyclic rings include a plurality of different segments that each include a plurality of threaded macrocyclic rings. Each of the plurality of different segments is in the form of a crystalline network. Further embodiments of the present disclosure pertain to methods of forming the rotaxanes by covalently appending one or more sterically hindered molecules onto a polymer and threading a plurality of macrocyclic rings onto the polymer. Additional embodiments of the present disclosure pertain to methods of manufacturing a three-dimensional structure by applying a composition of the present disclosure onto a surface.

This invention relates to shape memory block copolymers comprising: at least one switching segment having a T.sub.trans from 10 to 70° C.; and at least one soft segment, wherein at least one of the switching segments in linked to at least one of the soft segments by at least one linkage, and wherein the copolymer transforms from a first shape to a second shape by application of a first stimulus and the copolymer transforms back to the first shape from the second shape by application of a second stimulus. The shape memory block copolymers may be biocompatible and biodegradable.