The present invention is directed to packaging laminates for containing a food or pharmaceutical/medical product which includes an exterior film, a multilayer interior film comprising a diisocyanate-scavenging layer and an adhesive-contact layer, and a polyurethane adhesive layer bonding the exterior film to the multilayer interior film. The present invention reduces the amount of any unreacted diisocyanate precursor and primary amines which can migrate to a product in packaging assemblies formed with a polyurethane adhesive. This is achieved when an interior film (commonly known as a sealant film) includes a layer comprising a non-polymeric polyol which is not in direct contact with the polyurethane adhesive. With this approach, the nonpolymeric polyol reacts with any residual diisocyanate and/or primary amines which migrates from the polyurethane adhesive through the laminated assembly and thus, neutralizes any potential undesirable effects of these compounds.

A method for forming a bioactive agent spatially patterned includes providing a photocrosslinkable hydrogel that includes a photocrosslinkable base polymer, photocrosslinkable bioactive agent coupling polymer macromers, and at least one bioactive agent that couples to the photocrosslinkable bioactive agent coupling polymer macromer, an selectively exposing discrete portions of the photocrosslinkable hydrogel to actinic radiation effective to initiate cross-linking of the base polymer and the bioactive agent coupling polymer macromers at the exposed portions.

A composition includes a dual crosslinkable hydrogel that includes a plurality of polymer macromers, which are crosslinked with a first agent and a second agent different than the first agent, wherein the crosslinks formed using the second agent are reversible and repeatable to allow the mechanical properties of the hydrogel to be dynamically adjusted.

An interpenetrating polymer network (IPN) structured hydrogel includes a crosslinked first natural polymer macromer with a first elasticity and an interpenetrating network of crosslinked second natural polymer macromers having a second elasticity higher than the first elasticity, the IPN structured hydrogel being cytocompatible, and, upon degradation, produce substantially non-toxic products.

The disclosure provides an associative polymer, a powder, a process for forming a paper sheet, and a process for making a powder. One or more associative polymers and one or more optional surfactants may be networked to form a wet gel and a powder may be formed from the wet gel. The associative polymer may have a weight average molecular weight of from about 10 kDa to about 2,000 kDa. A method may involve adding the powder to a cellulose fiber slurry, draining the cellulose fiber slurry to form a fiber pad, and drying the fiber pad to form a paper sheet.

Provided are: a polymer film of which film strength is difficult to be degraded and which has a lower reflectance, even when an additive is used, and an optical member, a polarizing member, and a display device employing the same. A low refractive index layer (the polymer film 13) includes a binder 132 including a product obtained by photopolymerizing a mixture of a side-chain-reactive photopolymerizable fluoropolymer and a siloxane compound. Further, the low refractive index layer 13 includes hollow silica particles 131 distributed in the binder 132. Further, the low refractive index layer 13 includes a product obtained by photopolymerizing a one-end reactive-type photopolymerizable fluoropolymer, and a modified silicone, which are mainly distributed in a surface side.

A silane of the formula (I) containing at least one aliphatic amidine group- or guanidine group-containing alkoxy group, to a method for producing same, to conversion products thereof, and to the use thereof as a catalyst in curable compositions, in particular based on silane group-containing polymers. The silane of the formula (I) is largely odorless and non-volatile at room temperature. The silane accelerates the hydrolysis and condensation reaction of silane groups very effectively without impairing the storage stability of silane group-containing polymers. Additionally, the silane is very tolerable in silane group-containing compositions, whereby such compositions are not prone to separate, migrate, or evaporate the catalyst.

The invention relates to a composition comprising at least one organic polymer that contains silane groups and at least one catalyst of formula (I). The composition is low in emissions and low-odor, has a good shelf-life, cures rapidly to form a mechanically high-quality, durable material with a very low propensity for migration-related defects such as exudation or dirt retention by the substrate. The composition is particularly suitable for use as an adhesive, sealant or coating.

The present disclosure is directed to certain polyethers copolymers, and polyether derivatives thereof, and methods of making and using the same. For example, the starting materials may include such species as citronellol, geraniol, dihydromyrcene, adipic acid, propanediol, ethylene glycol, glycerol, 1,9-nonanediol, and 1,6-hexanediol.

The invention relates to polyethers, polyamines, and polythioethers, as well as to processes for synthesizing them, e.g., using olefins as starting material.