C09D123/08

Methods for preparing waterborne heat seal coating compositions

Methods for preparing waterborne heat seal coating compositions are disclosed, including (A) melt blending an ethylene vinyl acetate copolymer, a tackifier, and a wax in a first mixing apparatus to form a melt blend, (B) contacting the melt blend with an initial aqueous stream comprising a neutralizing agent, water, and a surfactant in an emulsification zone of the second mixing apparatus to form a dispersion, and (C) diluting the dispersion with water in a dilution zone of the second mixing apparatus to form the waterborne heat seal coating composition. Methods for preparing waterborne heat seal coating compositions are also disclosed, including (A) melt blending an ethylene vinyl acetate copolymer, a tackifier, and a wax in a mixing and conveying zone of a mixing apparatus to form a melt blend, (B) contacting the melt blend with an initial aqueous stream comprising a neutralizing agent, water, and a surfactant in an emulsification zone of the mixing apparatus to form a dispersion, and (C) diluting the dispersion with water in a dilution zone of the mixing apparatus to form the waterborne heat seal coating composition, wherein the length-to-diameter ratio of the extruder mixing apparatus is greater than or equal to 12 to 1. Waterborne heat seal coating compositions prepared according to the disclosed methods are also disclosed.

Resin composition, resin-coating material, vehicle wire harness and method of producing vehicle wire harness

A resin composition, containing an ethylene-vinyl acetate copolymer (A); and 15 to 30 mass parts of a bromine-based flame retardant (B), 5 to 15 mass parts of antimony trioxide (C), 6 to 12 mass parts of a benzimidazole-based aging retardant (D), 2 to 4 mass parts of a phenol-based aging retardant (E), 2 to 4 mass parts of a thioether-based aging retardant (F), 0.5 to 2 mass parts of a copper inhibitor (G), and 3 to 6 mass parts of a crosslinking aid (H), with respect to 90 to 100 mass parts of the ethylene-vinyl acetate copolymer (A); a vehicle wire harness; and, a method of producing a vehicle wire harness.

Oil-Extended EPDM in Moisture Cure Blend
20230091053 · 2023-03-23 ·

The present disclosure provides a composition. The composition is crosslinkable and includes an ethylene silane-copolymer, an oil-extended ethylene-propylene-diene monomer (EPDM), and a crosslink catalyst. The present disclosure also provides the composition after crosslinking. In an embodiment, a crosslinked composition is provided and includes from 55 wt % to 85 wt % of an ethylene-silane copolymer and from 15 wt % to 45 wt % of an oil-extended EPDM. The crosslinked composition has: (a) a flexural modulus of 50 MPa to 160 MPa; and (b) a hot set elongation greater than 10%. The crosslinked composition can be used as a coating for a coated conductor.

Polymerization process for liquid copolymers of ethylene and hydroxyalkyl(meth)acrylate

The present invention relates to a continuous high-pressure polymerization process for the preparation of a liquid ethylene copolymer which comprises in polymerized for methylene; and a reactive acrylate which is selected from hydroxyethyl (meth)acrylate, hydroxypropyl (meth)acrylate, and hydroxybutyl (meth)acrylate, where a monomer feed comprising the ethylene and the reactive acrylate is polymerized in the presence of at least 2 wt % of a chain transfer agent. The present invention also relates to the liquid ethylene copolymer, to a coating material comprising the liquid ethylene copolymer and to a use of the liquid ethylene copolymer to produce a coating material.

PHOTOVOLTAIC MODULE WITH INCREASED RESISTANCE AGAINST POTENTIAL INDUCED DEGRADATION

The present invention relates a photovoltaic module comprising a protective front layer element, an encapsulation layer element, a photovoltaic cell element and a protective back layer element, whereby at least one of the protective elements comprises glass; wherein the encapsulation layer element comprises a polymer composition (I) comprising at least the following components: (A) 97.00 to 99.99 wt.-% based on the overall weight of the polymer composition (I) of a polymer selected from an ethylene-vinylacetate copolymer, a polyolefin elastomer or a polymer of ethylene (a) selected from (a1) a copolymer of ethylene which bears functional groups containing units; (a2) a copolymer of ethylene comprising one or more polar comonomer unit(s) selected from (C1-C6)-alkyl acrylate or (C1-C6)-alkyl (C1-C6)-alkyl acrylate comonomer units, and optionally bears functional groups containing units different from said polar comonomer unit(s); (a3) a copolymer of ethylene comprising one or more alpha-olefin comonomer unit(s); and optionally bears functional groups containing units different from said polar comonomer unit(s) of polymer (a2); or mixtures thereof; and (b) silane group(s) containing units; (B) 0.01 to 3.00 wt.-% based on the overall weight of the polymer composition (I) of a compound according to Formula (I); wherein; R.sub.1, R.sub.1′, R.sub.2 and R.sub.2′ are each independently selected from the group consisting of hydrogen, n-alkyl, iso-alkyl, alkoxy, cycloalkyl, alkenyl, halogen and mixtures thereof; X is selected from the group consisting of primary amines, secondary amines, tertiary amines, hydrogen, alkyl, alkenyl and mixtures thereof. Furthermore, the present invention refers to the use of an encapsulation layer element comprising polymer composition (I) according to the invention for increasing the P.sub.max determined after 96 h according to IEC 60904, by applying the foil method with a temperature of 85° C. and relative humidity of 60% and a potential difference of 1500 V, of a photovoltaic module comprising besides the encapsulation layer element a protective front layer element, a photovoltaic cell element and a protective back element, whereby at least one of the protective elements comprises glass.

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Apparatus and methods for alternative coatings applicable to metal

Apparatus and methods for alternative coatings applicable to metal are disclosed. According to one embodiment, an apparatus comprises a composition having, an ethylene acrylic acid copolymer; a neutralizing base; and water. The ethylene acrylic acid copolymer is about 15 percent to about 45 percent by weight concentration of the water. The apparatus further comprises metal coated with the composition.

Polymeric coating compositions and articles coated with the same

Polymeric coating compositions and articles coated with the polymeric coating compositions are provided. The polymeric coating composition can include an ethylene-based polymer that exhibits desirable melting properties and molecular weight distribution. The polymeric coating composition can provide a thin coating layer on an article while still providing advantageous properties, such as seal strength.

PROTECTIVE COATING COMPOSITION FOR CIRCUIT BOARD

The present disclosure provides a protective coating composition for circuit boards, the composition capable of i) forming a protective coating for effectively protecting a circuit board and an electrical/electronic component mounted thereon, from moisture, foreign materials, and corrosive gas, ii) reducing the formation time of a protective coating, iii) forming a protective coating capable of achieving optimal protective performance with a smaller thickness, and iv) forming a protective coating that is easier to remove. According to one aspect of the present disclosure, an embodiment of the protective coating composition for circuit boards includes a polyketone, and a solvent.

AQUEOUS POLYOLEFIN DISPERSION
20220315788 · 2022-10-06 ·

The invention relates to an aqueous polyolefin dispersion having a pH value from 8.6-12.5 containing a from 50 to 100 wt. % of an aqueous dispersion A comprising the following ingredients: i. from 31 to 90 wt. % of A1, a copolymer of ethylene and (meth)acrylic acid having a content of (meth)acrylic based groups of at least 11 wt. % based on the total weight of the copolymer or a mixture of different copolymers of ethylene and (meth)acrylic acid each having a content of (meth)acrylic based groups of at least 11 wt. % based on the total weight of the copolymer, ii. from 10 to 69 wt. % of A2, another olefinic structure units containing polymer, not being a copolymer of ethylene and (meth)acrylic acid, or a mixture of other olefinic structure units containing polymers not being a copolymers of ethylene and (meth)acrylic acid, and iii. from 0-35 wt. % of additive different from A1 and A2, b. from 0 to 50 wt. % of other ingredient(s) B, where compound B is a material dispersible or soluble in water and different from any of the ingredients of dispersion A wherein—the wt. % of A and B is based on the solid content of the whole aqueous polyolefin dispersion,—the wt. % of the ingredients of dispersion A is based on the solid content of dispersion A,—the sum of the wt. % of ingredients i to iii of dispersion A is 100% and wherein the pH of the dispersion is in the range of 9.5 to 11 and/or the dispersion contains, as an ingredient of B, more than 5 and less than 35 wt. % of PEG, based on the solid content of the whole aqueous dispersion.

COATING COMPOSITION FOR BEVERAGE CONTAINERS
20230107883 · 2023-04-06 ·

Beverage containers and methods of coating are provided. The beverage containers include a metal substrate that is at least partially coated with a coating prepared from a composition that includes a binder system, a cross linker, and a catalyst.