Patent classifications
C09D123/0869
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.
Wet coating compositions for paper substrates, paper substrates coated with the same and process for coating a paper substrate with the same
A wet coating composition useful for coating a cellulosic fiber-based substrate is provided. The composition includes two aqueous emulsions. The first emulsion includes an oxidized paraffin/polyethylene wax and the second emulsion includes an ethylene/acrylic acid copolymer wax, ethylene/acrylic amide copolymer wax, ethylene/acrylic acid/acrylic amide copolymer wax or a mixture thereof. The oxidized paraffin/polyethylene wax has a surface energy less than or equal to 2 m N/m being substantially dispersive energy. The wet coating composition when dried forms a coating having a surface energy ranging from 20 to 60 m N/m being the sum of dispersive and polar energies. A process for treating a cellulosic fiber-based substrate with the wet coating composition, a substrate coated and articles including the coated substrate are also described. The process involves a heating step to allow migration of the coating towards a core of the cellulosic fiber-based substrate.
BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY INCLUDING SAME
A backlight unit for a liquid crystal display device, the backlight unit including: an light emitting diode (LED) light source; a light conversion layer disposed separate from the LED light source to convert light emitted from the LED light source to white light and to provide the white light to the liquid crystal panel; and a light guide panel disposed between the LED light source and the light conversion layer, wherein the light conversion layer includes a semiconductor nanocrystal and a polymer matrix, and wherein the polymer matrix includes a first polymerized polymer of a first monomer including at least to two thiol (SH) groups, each located at a terminal end of the first monomer, and a second monomer including at least two unsaturated carbon-carbon bonds, each located at a terminal end of the second monomer.
AQUEOUS PRIMER COATING FOR USE IN A DIGITAL PRINTING PROCESS
The compositions of the present invention are preferably polyurethane-free, aqueous primer coatings for print substrates comprising a dispersion of an at least partially neutralized copolymer of ethylene and (meth)acrylic acid and a dispersion of an at least partially neutralized copolymer that is obtained by emulsion copolymerization of at least methyl (meth)acrylate and one or more alkenyl phosphate esters and further optionally one or more comonomers chosen from (meth)acrylic acid and diacetone (meth)acrylamide
AQUEOUS PRIMER COATING FOR USE IN A DIGITAL PRINTING PROCESS
The compositions of the present invention are preferably polyurethane-free, aqueous primer coatings for print substrates comprising a dispersion of an at least partially neutralized copolymer of ethylene and (meth)acrylic acid and a dispersion of an at least partially neutralized copolymer that is obtained by emulsion copolymerization of at least methyl (meth)acrylate and one or more alkenyl phosphate esters and further optionally one or more comonomers chosen from (meth)acrylic acid and diacetone (meth)acrylamide
PROCESS FOR PRODUCING STABLE AQUEOUS POLYMERIC DISPERSIONS AND COATINGS AND COATED GLASS ARTICLES USING THE SAME
A process for producing an aqueous polymeric dispersion may include coextruding a copolymer of an -olefin and an ,-unsaturated carboxylic acid to form a combined polymer, and a wax. The process may include emulsifying the combined polymer and wax to form a dispersion, and adding an adhesion promoter to the dispersion. Also disclosed are coatings including the aqueous polymeric dispersion and coated glass articles having the aqueous polymeric dispersion coated thereon.
Polymer dispersions and their use in pigmented coating compositions
A copolymer dispersion is described comprising a copolymer derived from a monomer mixture comprising: (a) 88.5 to 94% by weight of at least one vinyl ester of a saturated carboxylic acid; (b) 5 to 10.5% by weight of ethylene; (c) 0.5 to 5% by weight of at least one ethylenically unsaturated acid and/or an anhydride thereof and/or a salt thereof; and (d) 0.5 to 5% by weight of at least one ethylenically unsaturated monomer having at least one crosslinkable functional unit. The weight ratio of vinylester units to ethylene units in the copolymer is between 89:11 and 94:6 and the dispersion is stabilized with at least 1% by weight of an emulsifier, wherein the amounts of monomers and emulsifier refer to the total amount of monomers in the copolymer.
AQUEOUS POLYOLEFIN DISPERSION
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 stricture 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 whereinthe 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.
TREATED POROUS MATERIAL
The present disclosure describes a treated cellulosic material comprising a cellulosic material having a porous structure defining a plurality of pores, at least a portion of the pores containing a treating agent comprising a polymer comprising an ol-efin-carboxylic acid copolymer; and a modifying agent comprising an epoxy.
WET COATING COMPOSITIONS FOR PAPER SUBSTRATES, PAPER SUBSTRATES COATED WITH THE SAME AND PROCESS FOR COATING A PAPER SUBSTRATE WITH THE SAME
A wet coating composition useful for coating a cellulosic fiber-based substrate is provided. The composition includes two aqueous emulsions. The first emulsion includes an oxidized paraffin/polyethylene wax and the second emulsion includes an ethylene/acrylic acid copolymer wax, ethylene/acrylic amide copolymer wax, ethylene/acrylic acid/acrylic amide copolymer wax or a mixture thereof. The oxidized paraffin/polyethylene wax has a surface energy less than or equal to 2 m N/m being substantially dispersive energy. The wet coating composition when dried forms a coating having a surface energy ranging from 20 to 60 m N/m being the sum of dispersive and polar energies. A process for treating a cellulosic fiber-based substrate with the wet coating composition, a substrate coated and articles including the coated substrate are also described. The process involves a heating step to allow migration of the coating towards a core of the cellulosic fiber-based substrate.