C09D123/08

TPO PRIMER
20230348704 · 2023-11-02 ·

A composition in the form of a solution or dispersion, comprising an anhydride-modified polyolefin, an anhydride-modified styrenic block copolymer, and an isocyanate-containing crosslinker, wherein the anhydride-modified polyolefin and anhydride-modified styrenic block copolymer are present in a total amount in the range of 7% to 18% by weight in total, based on the composition, and in a weight ratio of anhydride-modified polyolefin to anhydride-modified styrenic block copolymer which is in the range of 2:1 to 6:1; the weight ratio of isocyanate-containing crosslinker to the sum of anhydride-modified polyolefin plus anhydride-modified styrenic block copolymer is in the range of 0.2:1 to 0.5:1; and the solvent comprises a ketone as first solvent and an alkylbenzene or an alkane solvent. The compositions are useful for adhering TPO to TPU, polyester or PU. The composition can be used in a process of bonding a first part or coating of a TPO to a second part or coating of TPU, polyester or PU, using heat and optionally pressure, wherein the adhesion has improved peel strength.

VINYL ACETATE-BASED COPOLYMER DISPERSIONS WITH SMALL PARTICLE SIZE

Aqueous copolymer dispersions are useful for incorporating into primer formulations. The aqueous copolymer dispersions comprise a vinyl acetate-based copolymer and have a particle size of less than or equal to 120 nanometers. The resulting primer formulations have good penetration in various substrates, and/or water resistance/binding properties.

ANISOTROPIC CONDUCTIVE FILM AND METHOD AND COMPOSITION FOR MAKING THE SAME
20230357580 · 2023-11-09 ·

A method for producing an anisotropic conductive film, which includes mixing a base polymer with an initiator and a first solvent to obtain a first mixture, dispersing conductive microspheres in an alcohol or a second solvent containing a surfactant to obtain a second mixture, mixing the first mixture with a monomer, a binder, and the second mixture to obtain a third mixture, and laminating the third mixture on a carrying film, followed by drying, so as to obtain the anisotropic conductive film. An anisotropic conductive film produced by the method and a composition for forming the anisotropic conductive film are also disclosed.

Tile containing primer coated substrates with good adhesion

A tile comprising the following components: A) a first film formed from a first composition comprising the following: i) a functionalized olefin-based polymer comprising one or more chemical groups selected from the following: a) a carboxylic acid, and/or b) an anhydride, and, optionally, c) an amino or an amine; and ii) a functionalized styrenic block copolymer, comprising, in polymerized form, styrene, and ethylene and/or at least one alpha-olefin, and comprising one or more chemical groups selected from the following: a) a carboxylic acid, and/or b) an anhydride; and B) a substrate comprising at least one layer formed from a second composition comprising a propylene-based polymer; and wherein the first film covers at least one surface of the substrate.

COMPOSITIONS AND METHODS FOR TREATING SUBSTRATES
20230374315 · 2023-11-23 ·

The disclosure relates to compositions and methods useful for treating a substrate, for example for preventing or inhibiting corrosion of metal substrates. The compositions comprise (a) at least one cross-linkable, partially hydrolyzed polymer, and (b) at least one particular crosslinking agent.

Adhesive composition based on ethylene copolymers, useful for extrusion-coating and extrusion-lamination on a variety of supports

The invention concerns an adhesive composition consisting of at least one ethylene polymer or copolymer, said composition comprising at least one unsaturated carboxylic acid ester comonomer, and at least one functional comonomer, useful in an extrusion-coating process for application on a support or in an extrusion-lamination process for bonding together several supports of different type or not, in a wide temperature range. The invention is characterized in that said composition has an unsaturated carboxylic acid ester content higher than 5 wt % and in that the functional comonomer consists of at least one reactive function in the form of an acid group, anhydride or epoxy, whereof the proportion is less than 1 wt % of the composition. Said composition has advantageous uses, in particular for bonding together substrates selected among aluminum, paper or cardboard, cellophane, films based of polyethylene, polypropylene, polyamide, polyester, polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), polyacrylonitrile (PAN) resins, oriented or not, metal-coated or not, physically or chemically treated or not and films coated with a thin inorganic barrier layer, such as polyester (PET, SiOx or AlOx).

LOW DENSITY POLYETHYLENE WITH ENHANCED HOT TACK STRENGTH AND ADHESION-TO-METAL BY THE ADDITION OF IONOMERS

Polymer blends, films, and coated substrates that include the polymer blends. The polymer blends include at least 90% by weight low density polyethylene polymer and from 1 to 10% by weight ionomer. The LDPE polymer has a melt index (I.sub.2)from 2 g/10 mins to 6 g/10 mins, and a molecular weight distribution from 5 to 11 as determined by a conventional gel permeation chromatography method. The ionomer includes an ethylene acid copolymer, in which from 15% to 70% of acid groups are neutralized by sodium cation based on the total number of acid groups in the acid copolymer. The ethylene acid copolymer is the polymerized reaction product of: at least 50% by wt. ethylene, from 2 wt. % to 40 wt. % of monocarboxylic acid monomer, and from 0 to 20 wt. % of alkyl acrylate, based on the total wt. % of the monomers present in the ethylene acid copolymer.

Filaments comprising ionomers and use in fused filament fabrication
11390771 · 2022-07-19 · ·

The disclosure generally relates to 3D printed articles prepared from filaments comprising an ionomer (A) prepared from a base resin (B); wherein: base resin (B) is prepared from ethylene and at least one C.sub.3 to C.sub.8 α,β ethylenically unsaturated carboxylic acid monomer; the carboxylic acid moieties of base resin (B) are 10 to 99.5 percent neutralized by zinc or lithium; the at least one C.sub.3 to C.sub.8 α,β ethylenically unsaturated carboxylic acid is present from about 2 weight percent to about 30 weight percent, based on the weight of base resin (B).

Sheet set for encapsulating solar battery

A sheet set for encapsulating a solar battery including a first encapsulating sheet and a second encapsulating sheet which are disposed between a light-incident surface protective member and a back surface protective member, and are used to encapsulate solar battery elements is provided. When the first encapsulating sheet and the second encapsulating sheet are subjected to a heating and pressurization treatment in which the first encapsulating sheet and the second encapsulating sheet are heated and depressurized under defined conditions, a volume resistivity of the first encapsulating sheet measured under defined conditions, is higher than a volume resistivity of the second encapsulating sheet. The first encapsulating sheet is disposed between the light-incident surface protective member and the solar battery elements. The second encapsulating sheet has at least one polar group selected from a carboxyl group, an ester group, a hydroxyl group, an amino group, and an acetal group.

Weather-resistant temporary paint system comprising a removable paint composition and a remover composition
11299637 · 2022-04-12 · ·

A paint system comprising a first component and a second component wherein said first and second components are separate compositions, wherein said first component is a removable paint composition comprising: (i) an organic solvent component comprising or consisting of one or more organic solvent(s); (ii) a polymeric component comprising a polymeric binder; (iii) a pigment component; and (iv) optionally one or more acid(s), and wherein said second component is a remover composition for removing said first component from a surface of a substrate wherein said remover composition comprises: (i) water and (ii) a base.