The present invention is a composite stretchable film including: a surface film which is a cured product of a polyurethane 1 containing a copolymer of one or more of units “a1” to “a4” and silicone-pendant type urethane units “b1” and/or “b2” represented by the following general formula (1); and an inner film which is a cured product of a polyurethane 2 containing a unit “c” having polyether and urethane bonds represented by the following general formula (2), on which the surface film is laminated. The present invention provides a stretchable film that has excellent stretchability and strength, with the film surface having excellent water repellency, and a method for forming the same. ##STR00001##

Described herein are compositions suitable for use as binder components for inclusion in printing inks and coatings, such as those used in the gravure and flexographic printing process and which are printed on substrates such as polyolefin (e.g., polyethylene, polypropylene) and poly(ethylene terephthalate) (PET). The compositions are non-aqueous dispersions in which an one or more ethylenically unsaturated acrylates or (meth)acrylates is polymerized with a polyurethane, polyurethane-urea or polyurea in a non-aqueous polymerization medium, such as esters, ketones, and mixtures thereof, forming polymeric hybrid resins in the polymerization medium, which are solvent-dispersible hybrid resins of polyurethane-polyacrylate, polyurethane-urea-polyacrylate, and polyurea-polyacrylate. Films of hybrid resins are also disclosed. These materials exhibit improved film adhesion and are suitable for flexographic and gravure printing inks, especially for printing applications where adhesive lamination bond strengths are required, especially plastic films packaging applications.

Described herein are compositions suitable for use as binder components for inclusion in printing inks and coatings, such as those used in the gravure and flexographic printing process and which are printed on substrates such as polyolefin (e.g., polyethylene, polypropylene) and poly(ethylene terephthalate) (PET). The compositions are non-aqueous dispersions in which an one or more ethylenically unsaturated acrylates or (meth)acrylates is polymerized with a polyurethane, polyurethane-urea or polyurea in a non-aqueous polymerization medium, such as esters, ketones, and mixtures thereof, forming polymeric hybrid resins in the polymerization medium, which are solvent-dispersible hybrid resins of polyurethane-polyacrylate, polyurethane-urea-polyacrylate, and polyurea-polyacrylate. Films of hybrid resins are also disclosed. These materials exhibit improved film adhesion and are suitable for flexographic and gravure printing inks, especially for printing applications where adhesive lamination bond strengths are required, especially plastic films packaging applications.

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.

Described herein are compositions suitable for use as binder components for inclusion in printing inks and coatings, such as those used in the gravure and flexographic printing process and which are printed on substrates such as polyolefin (e.g., polyethylene, polypropylene) and poly(ethylene terephthalate) (PET). The compositions are non-aqueous dispersions in which an one or more ethylenically unsaturated acrylates or (meth)acrylates is polymerized with a polyurethane, polyurethane-urea or polyurea in a non-aqueous polymerization medium, such as esters, ketones, and mixtures thereof, forming polymeric hybrid resins in the polymerization medium, which are solvent-dispersible hybrid resins of polyurethane-polyacrylate, polyurethane-urea-polyacrylate, and polyurea-polyacrylate. Films of hybrid resins are also disclosed. These materials exhibit improved film adhesion and are suitable for flexographic and gravure printing inks, especially for printing applications where adhesive lamination bond strengths are required, especially plastic films packaging applications.

Described herein are compositions suitable for use as binder components for inclusion in printing inks and coatings, such as those used in the gravure and flexographic printing process and which are printed on substrates such as polyolefin (e.g., polyethylene, polypropylene) and poly(ethylene terephthalate) (PET). The compositions are non-aqueous dispersions in which an one or more ethylenically unsaturated acrylates or (meth)acrylates is polymerized with a polyurethane, polyurethane-urea or polyurea in a non-aqueous polymerization medium, such as esters, ketones, and mixtures thereof, forming polymeric hybrid resins in the polymerization medium, which are solvent-dispersible hybrid resins of polyurethane-polyacrylate, polyurethane-urea-polyacrylate, and polyurea-polyacrylate. Films of hybrid resins are also disclosed. These materials exhibit improved film adhesion and are suitable for flexographic and gravure printing inks, especially for printing applications where adhesive lamination bond strengths are required, especially plastic films packaging applications.

The present invention refers to a radiation-curable composition comprising or consisting of A) at least one photo-base generator, which can generate a super base; B) (macro)monomers which are able to undergo an anionic polymerization via Michael addition comprising or consisting of B1) at least one (macro)monomer having at least one Michael donor group and at least one Michael acceptor group; and/or B2) at least one (macro)monomer having at least two Michael donor groups and at least one (macro)monomer having at least two Michael acceptor groups; C) optionally at least one polyethylenimine; D) optionally at least one additive.

Furthermore, the present invention pertains to an adhesive, sealant or coating obtainable by radiation-curing the radiation-curable composition according to the present invention and a method of radiation-curing the radiation-curable composition according to the present invention, comprising the steps: providing a radiation-curable composition according to the present invention and exposing the radiation-curable composition to radiation, for 10 seconds to 5 minutes. The radiation-curable compositions of the present invention do not require that irradiation is continuously applied until the curing is completed. Once the curing of the compositions is initiated, they are able to continue to cure in parts of the compositions which are in the dark/shadow.

The present invention refers to a radiation-curable composition comprising or consisting of A) at least one photo-base generator, which can generate a super base; B) (macro)monomers which are able to undergo an anionic polymerization via Michael addition comprising or consisting of B1) at least one (macro)monomer having at least one Michael donor group and at least one Michael acceptor group; and/or B2) at least one (macro)monomer having at least two Michael donor groups and at least one (macro)monomer having at least two Michael acceptor groups; C) optionally at least one polyethylenimine; D) optionally at least one additive.

Furthermore, the present invention pertains to an adhesive, sealant or coating obtainable by radiation-curing the radiation-curable composition according to the present invention and a method of radiation-curing the radiation-curable composition according to the present invention, comprising the steps: providing a radiation-curable composition according to the present invention and exposing the radiation-curable composition to radiation, for 10 seconds to 5 minutes. The radiation-curable compositions of the present invention do not require that irradiation is continuously applied until the curing is completed. Once the curing of the compositions is initiated, they are able to continue to cure in parts of the compositions which are in the dark/shadow.