摘要:
The present invention relates to a sizing agent composition comprising starch, lignosulfonate and poly(alkyl acrylate), poly(alkyl (meth)acrylate), a mixture of poly(alkyl acrylate) and poly(alkyl methacrylate) or a copolymer of alkyl acry- late and alkyl (meth)acrylate. The present invention further relates to a method for preparing the sizing agent composition, and use of the sizing agent compo- sition for sizing paper, paper products or board.
摘要:
A coated paperboard is disclosed which includes a base coat and top coat containing substantially no fluorochemical or wax, exhibiting good resistance to oil and grease, no tendency toward blocking, and being fully repulpable. Improved moisture resistance is also exhibited.
摘要:
Methods for forming an abrasive backing having a super smooth surface are provided. The method can include applying a bond coating onto a first surface of a saturated, calendered paper; applying a barrier coating onto the bond coating to form an abrasive backing; and calendering the abrasive backing in a heated soft nip calender to produce the super smooth surface on the barrier coating. Abrasive backing sheets and abrasive sheet materials are also generally provided.
摘要:
A method of applying a metallic coating (24) to a surface of a sheet material (20) comprises forming a coating dispersion, the coating dispersion comprising coating particles (10) dispersed in a solvent. The coating particles (10) each comprise a polymeric material (14) and a metallic material (12). A sheet material (20) having a first surface is provided and the coating dispersion is applied to the first surface of the sheet material (20). The coating dispersion is dried to form a coating (24) on the first surface of the sheet material (20), the coating (24) comprising the metallic material (12) dispersed in a layer (22) of the polymeric material (14). The coating dispersion is heated to a temperature of at least 50 degrees Celsius to melt the polymeric material.
摘要:
Embodiments of the present disclosure are directed to coating compositions, coated articles, and methods in which the coated article is adapted to exhibit a particular permeance profile, such as, for example, a variable water vapor perm rating of about 1 perm or less at 25% average RH and about 15 perms or more at 95% average relative humidity, as tested by ASTM E96 at 21 C.
摘要:
Process for inhibiting the migration to the exterior of mineral oils consisting of saturated and/or aromatic hydrocarbons and/or of their volatile components, having from 10 to 25 carbon atoms included in packaging materials comprising recycled cellulosic fibres, characterized in that it comprises the operations of surface treatment of said packaging material to form a first polymer coating comprising an acrylic polymer, in contact with said fibres, and a second surface treatment by application of a second polymer coating comprising a cyclic olefin polymer on said first coating, where the total amount of acrylic polymer and of cyclic olefin polymer of the first and second coating is between 15 and 50 g/m 2 .
摘要翻译:用于抑制由包含再循环纤维素纤维的包装材料中包含10至25个碳原子的饱和和/或芳族烃和/或其挥发性组分组成的矿物油的迁移过程,其特征在于其包括操作 对所述包装材料进行表面处理以形成包含与所述纤维接触的丙烯酸类聚合物的第一聚合物涂层和通过在所述第一涂层上施加包含环烯烃聚合物的第二聚合物涂层进行第二表面处理,其中总量 的丙烯酸类聚合物和第一和第二涂层的环烯烃聚合物为15-50g / m 2。
摘要:
The invention relates to copolymer dispersions, comprising: a copolymer of (a) a vinyl ester of an alkanoic acid having from 1 to 13 carbon atoms; (b) ethylene; (c) from 0.5 to 5 pphm of a first cross-linking co-monomer comprising an ethylenically unsaturated monomer comprising an epoxy group; and (d) from 0.55 to 2 pphm of a second functional co-monomer comprising an ethylenically unsaturated dicarboxylic acid, mono- or di-ester thereof, or anhydride thereof, wherein the copolymer is dispersed in an aqueous medium comprising a stabilizer. The dispersions advantageously provide surprisingly good adhesion characteristics to paper substrates.
摘要:
Described is paper or cardboard packaging produced from mineral oil contaminated, (e.g., recycled) paper, wherein the packaging includes a barrier layer obtainable by applying an aqueous polymer dispersion comprising a copolymer obtainable by emulsion polymerization of C 1 -C 4 alkyl (meth)acrylates, acid monomers, e.g., acrylic acid or methacrylic acid, 0-20 wt% of acrylonitrile and 0 to 10 wt% of further monomers in an aqueous medium in the presence of a carbohydrate compound, preferably in the form of a degraded starch, wherein the glass transition temperature of the copolymer is in the range from +10 to +45°C. The barrier layer may be situated on one of the surfaces of the packaging or form one of multiple layers of a multilayered packaging coating or be situated as a coating on one side of an inner bag situated within the packaging.
摘要:
This invention relates to a stable aqueous disersion suitable for application to different substrates and especially to paper substrates for producing a barrier layer against compounds of the saturated and aromatic hydrocarbon type. The said aqueous dispersion are characterised in that they comprise destructurized starch in a complexed form. The present invention refers also to the use of said aqueous dispersion as a coating composition for paper based substrates, as microencapsulant of fragrances and as film-forming component for paints.
摘要:
The present invention relates to a process for preparing a polymer latex comprising polymerizing one or more ethylenically unsaturated aromatic monomers and one or more conjugated diene monomers in the presence of hydroperoxide chain transfer agent and sulfur- containing chain transfer agent, wherein the sulfur-containing chain transfer agent is added after the hydroperoxide chain transfer agent, It further relates to the polymer latex thus obtained, to a composition comprising the polymer latex and to the use of the polymer latex or polymer latex composition in a carpet backing, paper coating, or fiber fabric pre-impregnation process.