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.

Disclosed is an aqueous coating agent comprising: (A) a copolymer of ethylene with a carboxylic acid derivative having an ethylenic double bond; (B) a basic material; and (C) particles having melting point of 100 C. or more, and is further a paper substrate coated with the aqueous coating agent.

A fiber preparation treated with an aqueous polyolefin dispersion having a pH value from 7.5-9.4 containing from 50 to 100 wt. % of an aqueous dispersion A and from 0 to 50 wt. % of a compound B. Dispersion A comprises from 41 to 98 wt. % of A1, one or more copolymers of ethylene and (meth)acrylic acid having a content of (meth)acrylic based groups of at least 14 wt. % based on the total weight of the copolymer, from 1 to 59 wt. % of A2, one or more olefinic structure units containing hydrocarbon polymer, and from 0-35 wt. % of additive different from A1 and A2, based on the solid content of dispersion A. Compound B is a material dispersible or soluble in water and different from the ingredients of dispersion A. The wt. % of A and B is based on the solid content of the aqueous polyolefin dispersion.

A coated paper liner serves as both exterior packaging and an interior release liner for consumer products. The liner comprises a paper sheet layer with a first polymeric composition, such as a thermoplastic elastomer or polymer, forming a film on at least a portion of a surface of the paper sheet. The liner may comprise a flexibility agent that enhances pliability and noise reduction during handling. The liner may also include a release agent, such as silicone, to prevent adhesion of consumer products to the liner. The method of manufacturing involves coating the paper sheet with the polymeric composition and flexibility agent, followed by drying. This solution offers a sustainable alternative to plastic films, providing to the liner heat-sealability, barrier properties, and recyclability.

A varnish having low viscosity and a cured product thereof having a high degree of cross-linking, exhibiting excellent low dielectric properties and mechanical properties at high temperature, and a low coefficient of linear thermal expansion are provided. A varnish comprising an olefin-aromatic vinyl compound-aromatic polyene copolymerized oligomer satisfying specific conditions, one or more selected from the following (a) to (c), and (d) a solvent: (a) a curing agent; (b) one or a plurality of resins selected from a hydrocarbon-based elastomer, a polyphenylene ether-based resin, an olefin-aromatic vinyl compound-aromatic polyene copolymer, and an aromatic polyene-based resin; and (c) a polar monomer; and a cured product of the varnish.

A resin composition contains a polyolefin resin, a metal hydroxide-based flame retardant, an inorganic filler, and an antioxidant. A content of the metal hydroxide-based flame retardant is 60 parts by mass or more and 140 parts by mass or less with respect to 100 parts by mass of the polyolefin resin. The inorganic filler is formed by using zeolite and an organically modified layered silicate in combination. A content of the zeolite is 0.5 parts by mass or more and 2.0 parts by mass or less with respect to 100 parts by mass of the polyolefin resin. The zeolite has a pore diameter of 3.0 or more and 6.5 or less, or a pore diameter of more than 6.5 and 9.0 or less, and has a silica/alumina ratio of 2 or more and 10 or less. A content of the organically modified layered silicate is 1.0 part by mass or more and 14.0 parts by mass or less with respect to 100 parts by mass of the polyolefin resin.