The present invention provides an aircraft window including a polyurethane including a reaction product of components including (a) about 1 equivalent of at least one polyisocyanate; and (b) about 1 equivalent of 1,4-cyclohexane dimethanol based upon the about 1 equivalent of the at least one polyisocyanate, and other aircraft window compositions.

The present invention provides polyurethanes including a reaction product of components including: (a) an isocyanate functional urethane prepolymer comprising a reaction product of components including: (i) about 1 equivalent of at least one polyisocyanate; and (ii) about 0.1 to about 0.5 equivalents of at least one diol having 2 to 18 carbon atoms; and (b) about 0.05 to about 0.9 equivalents of at least one branched polyol having 4 to 18 carbon atoms and at least 3 hydroxyl groups; and (c) up to about 0.9 equivalents of at least one polyol different from branched polyol (b) and having 2 to 18 carbon atoms, wherein the reaction product components are essentially free of polyester polyol and polyether polyol; compositions, coatings and articles made therefrom and methods of making the same.

New shape memory polymer compositions, methods for synthesizing new shape memory polymers, and apparatus comprising an actuator and a shape memory polymer wherein the shape memory polymer comprises at least a portion of the actuator. A shape memory polymer comprising a polymer composition which physically forms a network structure wherein the polymer composition has shape-memory behavior and can be formed into a permanent primary shape, re-formed into a stable secondary shape, and controllably actuated to recover the permanent primary shape. Polymers have optimal aliphatic network structures due to minimization of dangling chains by using monomers that are symmetrical and that have matching amine and hydroxyl groups providing polymers and polymer foams with clarity, tight (narrow temperature range) single transitions, and high shape recovery and recovery force that are especially useful for implanting in the human body.

Two-component solventless polyurethane adhesive compositions comprising an isocyanate component and a polyol component comprising at least one highly-reactive amine-initiated polyol are disclosed. The at least one amine-initiated polyol comprises primary hydroxyl groups and a backbone incorporating one or more tertiary amines. The amine-initiated polyol further comprises a functionality of from 2 to 12, a hydroxyl number of from 5 to 1,830, and a viscosity at 40 C. of from 500 to 20,000 mPa-s. The polyol component can further comprise a non-amine-initiated polyol. The adhesive compositions are formulated such that the isocyanate and polyol components can be applied to separate substrates prior to mixing. Still further, a laminate comprising the adhesive compositions is disclosed.

The invention pertains generally to a shelf-stable polyurethane HFO-blown two-component polyurethane foam composition which includes incorporating nitrogen-containing aminopolyols.

Provided is a composition for forming polyurethane resin having a balance between reactivity and reducing viscosity and successfully imparting low-temperature storage stability, for use in fixing a hollow or flat sheet fiber separation membrane; and an MDI prepolymer containing a large amount of allophanate group without a metal compound and a method for producing the same while successfully controlling a reaction.

Solution is provided by using a composition for forming polyurethane resin, containing a specific isocyanate group-containing compound; allophanatizing MDI with a tertiary amine catalyst without containing a metal catalyst; and reacting in the presence of at least one selected from the group consisting of a carboxylic acid amide, a sulfonic acid amide and an active methylene compound.

A hybrid polyurethane/polyurea polymer suitable for forming a coating on a structure which is in contact with water includes the reaction product of a polyol component consisting of one or more polyols, a polyamine, and a curing agent, such as a polyisocyanate. The polyol component includes a Novolac-type polyether polyol.

Polymeric based closed cell foams, such as shape memory polymer foams, contain bubbles. Making these bubbles continuous is called reticulation. Disclosed are embodiments of a device and method to controllably reticulate polymer-based closed cell foams by puncturing the membranes of these polymer-based closed cell foams.

The present technology provides a polyurethane composition including: a main agent; and a curing agent, wherein the main agent includes a urethane prepolymer having an isocyanate group, a morpholine compound having one morpholine ring, and an ether compound having two dimethylamino groups, and the curing agent includes an active hydrogen compound having two or more active hydrogen-containing groups in one molecule.

The present technology provides a polyurethane composition including: a main agent; and a curing agent, wherein the main agent includes a urethane prepolymer having an isocyanate group, a morpholine compound having one morpholine ring, and an ether compound having two dimethylamino groups, and the curing agent includes an active hydrogen compound having two or more active hydrogen-containing groups in one molecule.