The present invention provides a solution-processable self-healing hydrolytically stable elastomer, a method for the preparation thereof, and articles of manufacture comprising the elastomer. The elastomer comprises polymeric chains comprising units of formula (A1), wherein R is a polybutadiene-containing polyurethane; R.sub.1 and R.sub.1′ are independently selected from the group consisting of: —H, (C.sub.1-C.sub.20)alkyl, (C.sub.5-C.sub.14)aryl, —OR.sub.4, —(CO)R.sub.5, —O(CO)R.sub.6, —(SO)R.sub.7, CO—R.sub.8, —COOR.sub.9, —NO.sub.2, and halogen; R.sub.2, R.sub.2′, R.sub.3 and R.sub.3′ are independently selected from the group consisting of: —H, (C.sub.1-C.sub.20)alkyl, and (C.sub.5-C.sub.14)aryl; R.sub.4 to R.sub.9 are the same or different, and are independently selected from the group consisting of: —H, (C.sub.1-C.sub.20)alkyl, and (C.sub.5-C.sub.14)aryl; m is 4; wherein the elastomer is dynamically crosslinked by aromatic disulfide metathesis, and wherein the elastomer has a water contact angle of above 100 #.

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Disclosed are ethylenically unsaturated macromers produced using a residue of an isocyanate manufacturing process. Also disclosed are preformed stabilizers produced using such macromers, polymer polyols produced using such preformed stabilizers, foam-forming compositions produced using such polymer polyols, and foam produced using such compositions.

A heat-removing sheet includes a plurality of endothermic particles and a chemically cured or radiation cured resin binding the endothermic particles together. The heat-removing sheet includes the endothermic particles at greater than 60 weight percent, has a flexural modulus of less than 3000 MPa and a flexural strength of greater than 0.15 MPa. The heat-removing sheet is a single free-standing layer.

A method of forming a three-dimensional object is carried out by: (a) providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; (b) filling the build region with a polymerizable liquid, the polymerizable liquid including a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from the first component; (c) irradiating the build region with light through the optically transparent member to form a solid polymer scaffold from the first component and also advancing the carrier away from the build surface to form a three-dimensional intermediate having the same shape as, or a shape to be imparted to, the three-dimensional object, and containing the second solidifiable component carried in the scaffold in unsolidified and/or uncured form; and (d) concurrently with or subsequent to the irradiating step, solidifying and/or curing the second solidifiable component in the three-dimensional intermediate to form the three-dimensional object.

A method of forming a three-dimensional object, wherein said three-dimensional object is an insert for use between a helmet and a human body, is described. The method may use a polymerizable liquid, or resin, useful for the production by additive manufacturing of a three-dimensional object, comprising a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from said first component.

A method of forming a three-dimensional object (e.g. comprised of polyurethane, polyurea, or copolymer thereof) is carried out by: (a) providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; (b) filling the build region with a polymerizable liquid, the polymerizable liquid comprising a mixture of: (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from the first component; (c) irradiating the build region with light through the optically transparent member to form a solid blocked polymer scaffold and advancing the carrier away from the build surface to form a three-dimensional intermediate having the same shape as, or a shape to be imparted to, the three-dimensional object, with the intermediate containing the second solidifiable component; and then (d) contacting the three-dimensional intermediate to water to form the three-dimensional object.

The present invention is concerned with a new macromer for use in polymer polyol dispersions, and also with a process for preparing a new macromer of this kind.

A method for producing a fiber for reinforcing rubber, comprising applying an adhesion treatment liquid containing a thermoplastic elastomer, a blocked polyisocyanate, and a rubber latex to a fiber cord to obtain a fiber for reinforcing rubber, wherein the thermoplastic elastomer is incorporated in the form of a water dispersion into the adhesion treatment liquid, wherein the thermoplastic elastomer particles in the water dispersion have an average particle diameter of 0.01 to 1.0 μm.

The present invention relates to polymerizable composition containing a cycloolefin monomer, a metathesis polymerization catalyst, a radical generator, a diisocyanate compound, and a polyfunctional (meth)acrylate compound. The composite material produced by using a polymerizable composition of the present invention has excellent mechanical strength and does not cause odor.

A method is useful for producing a urethane(meth)acrylate resin composition. The method improves storage stability and reduces the reactivity drift of the composition compared to compositions made by other means from the same starting materials. In particular, it reduces the degradation of TEMPOL in mixtures with branched urethane resins.