A thermoset material containing β-hydroxyesters wherein said thermoset material is subject to a mechano-chemical process to regenerate an epoxide and a carboxylic acid functionality. A curative for epoxidized plant-based oils and epoxidized natural rubber is created from the reaction between a naturally occurring polyfunctional acid and an epoxidized plant-based oil is disclosed. The curative may be used to produce porosity-free castable resins and vulcanize rubber formulations based on epoxidized natural rubber. Materials made from disclosed materials may be advantageously used as leather substitutes.

A thermoset material containing β-hydroxyesters wherein said thermoset material is subject to a mechano-chemical process to regenerate an epoxide and a carboxylic acid functionality. A curative for epoxidized plant-based oils and epoxidized natural rubber is created from the reaction between a naturally occurring polyfunctional acid and an epoxidized plant-based oil is disclosed. The curative may be used to produce porosity-free castable resins and vulcanize rubber formulations based on epoxidized natural rubber. Materials made from disclosed materials may be advantageously used as leather substitutes.

A curative for epoxidized plant-based oils and epoxidized natural rubber is created from the reaction between a naturally occurring polyfunctional acid and an epoxidized plant-based oil is disclosed. The curative may be used to produce at least one of six different materials, wherein each type of material may be configured as a thermosetting elastomer that is crosslinked with β-hydroxyester linkages. The materials may be configured as a leather-like material, a foam material, a molded elastomer, a coating, an adhesive, and/or a rigid or semi-rigid material. Illustrative articles made from any combination of the six materials may be recycled using a mechano-chemical process to de-crosslink the thermosetting elastomer.

A polymeric tape comprises a facestock extending lengthwise, the facestock including a polymer. An adhesive layer is on a first surface of the facestock. Tear-cuts are formed into at least one longitudinal edge of the facestock and extending inwardly, the tear-cuts being provided all along the at least one longitudinal edge of the facestock.

A curative for epoxidized plant-based oils and epoxidized natural rubber is created from the reaction between a naturally occurring polyfunctional acid and an epoxidized plant-based oil is disclosed. The curative may be used to produce at least one of six different materials, wherein each type of material may be configured as a thermosetting elastomer that is crosslinked with ß-hydroxyester linkages. The materials may be configured as a leather-like material, a foam material, a molded elastomer, a coating, an adhesive, and/or a rigid or semi-rigid material. Illustrative articles made from any combination of the six materials may be recycled using a mechano-chemical process to de-crosslink the thermosetting elastomer.

Methods of passivating an adhesive via printing an ink onto a release liner, and adhesive articles or products made by the same are provided. An ink pattern is printed onto a release liner to form a pattern of features. The features are at least partially embedded in an adhesive layer such that when the release liner is peeled from the adhesive layer, the passivation features remain with the layer of adhesive to form selected areas having adjusted adhesive functionality. Articles including the passivated adhesive on a release liner are also disclosed.

A method of making an adhesive article is described comprising melt extruding a core film layer comprising a composition comprising at least 50% of a polylactic acid polymer. The method further comprises melt extruding an adhesive layer on a major surface of the core film layer such that regions of interdiffusion are present between the core film layer and adhesive layer. The adhesive layer may comprise C1-C10 (meth)acrylic acid or ester thereof, vinyl acetate, ethylene vinyl acetate, hydrolysed polyvinyl alcohol and combinations thereof. The adhesive layer may also be a pressure sensitive adhesive. The method further comprises melt extruding a release film layer on an opposing major surface of the core film layer. The layers are sequentially extruded or co-extruded and can be uniaxially or biaxially oriented. Articles comprising a core film layer comprising a composition comprising at least 50% of a polylactic acid polymer and an adhesive layer disposed on a major surface of the core layer are also described.

Provided is a PSA sheet that can be used on a metal adherend because it has anti-metal-corrosive properties and can also maintain good removability while preventing or inhibiting adherend surface contamination even when prolongedly adhered to the adherend. A PSA sheet having a PSA layer is provided. The PSA layer comprises at least 95% base polymer by weight and has a chloride ion amount of less than 300 μg per gram of pressure-sensitive adhesive layer, determined by hot water extraction.

A disclosed method for manufacturing a floor covering includes the steps of vulcanising a support layer made of an elastomer and assembling an intermediate layer to the support layer during the step of vulcanising, wherein the intermediate layer is made of a material selected from the group that includes polyester, polyetheretherketone, polyetherimide, polysulfone, polyimide, polyamide, fluoropolymer, polyurethane, and paper. A print layer is printed either the intermediate layer or a transparent protective layer. When the print layer is printed on the intermediate layer, the protective layer is assembled to the print layer of a set that includes the print layer, the intermediate layer, and the support layer. When the print layer is printed on the protective layer, the print layer of a set that includes the print layer and the protective layer is assembled to the intermediate layer of a set that includes the intermediate layer and the support layer.

This is to provide a multilayer tube excellent in interlayer adhesiveness and durability thereof while maintaining various characteristics such as low temperature impact resistance, bursting pressure strength and flexibility.

In a multilayer tube having at least two kinds of layers and the both layers are adjacent to each other, an aliphatic polyamide composition constituting one of the layers contains an aliphatic polyamide having a ratio of a number of methylene groups to a number of amide groups of a specific value or more and a copolymerized polyamide having a specific unit, and an elastomeric polymer which may contain a constitutional unit derived from an unsaturated compound having a carboxyl group(s) and/or an acid anhydride group(s).