Patent classifications
C08K5/24
Use of a single-component laminating adhesive for composite film lamination
A description is given of the use of a one-component laminating adhesive for composite film lamination, and also of a method for composite film lamination. The laminating adhesive comprises an aqueous polymer dispersion preparable by radical emulsion polymerization of monomers comprising (a) at least 60 wt %, based on the total amount of monomers, of at least one monomer selected from the group consisting of C1 to C20 alkyl acrylates, C1 to C20 alkyl methacrylates, vinyl esters of carboxylic acids comprising up to 20 carbon atoms, vinylaromatics having up to 20 carbon atoms, vinyl halides, vinyl ethers of alcohols comprising 1 to 10 carbon atoms, aliphatic hydrocarbons having 2 to 8 carbon atoms and one or two double bonds, and mixtures of these monomers, and (b) at least 0.1 wt %, based on the total amount of monomers, of at least one monomer having at least one acid group, and (c) 0.1 to 5 wt %, based on the total amount of monomers, of at least one ethylenically unsaturated compound having at least one functional group selected from keto groups and aldehyde groups; where the aqueous polymer dispersion comprises at least one compound A which has at least two functional groups that are able to enter into a crosslinking reaction with keto groups or with aldehyde groups; where the molar ratio of the groups of the compound A that are reactive with keto groups or with aldehyde groups to the keto and aldehyde groups of the monomer (b) is from 1:10 to 2:1; and where, in the composite film lamination, at least two films are bonded to one another with the laminating adhesive so firmly that the peel strength is 2.5 N/15 mm or more or that the films bonded to one another are partable only with destruction of at least one of the films. The composite films can be used for the packing of foods.
Use of a single-component laminating adhesive for composite film lamination
A description is given of the use of a one-component laminating adhesive for composite film lamination, and also of a method for composite film lamination. The laminating adhesive comprises an aqueous polymer dispersion preparable by radical emulsion polymerization of monomers comprising (a) at least 60 wt %, based on the total amount of monomers, of at least one monomer selected from the group consisting of C1 to C20 alkyl acrylates, C1 to C20 alkyl methacrylates, vinyl esters of carboxylic acids comprising up to 20 carbon atoms, vinylaromatics having up to 20 carbon atoms, vinyl halides, vinyl ethers of alcohols comprising 1 to 10 carbon atoms, aliphatic hydrocarbons having 2 to 8 carbon atoms and one or two double bonds, and mixtures of these monomers, and (b) at least 0.1 wt %, based on the total amount of monomers, of at least one monomer having at least one acid group, and (c) 0.1 to 5 wt %, based on the total amount of monomers, of at least one ethylenically unsaturated compound having at least one functional group selected from keto groups and aldehyde groups; where the aqueous polymer dispersion comprises at least one compound A which has at least two functional groups that are able to enter into a crosslinking reaction with keto groups or with aldehyde groups; where the molar ratio of the groups of the compound A that are reactive with keto groups or with aldehyde groups to the keto and aldehyde groups of the monomer (b) is from 1:10 to 2:1; and where, in the composite film lamination, at least two films are bonded to one another with the laminating adhesive so firmly that the peel strength is 2.5 N/15 mm or more or that the films bonded to one another are partable only with destruction of at least one of the films. The composite films can be used for the packing of foods.
WASH COMPOSITION FOR REDUCING FORMALDEHYDE EMISSIONS
What is described is the use of a composition containing one or more formaldehyde scavengers for production of a coating on a main body of a mold or core for metal casting that emits formaldehyde when heated, wherein the coating forms a surface of the mold or core that comes into contact with a metal melt in the casting operation.
Anaerobically Curable Compositions Comprising A Metallacene And Acetyl Phenyl Hydrazine Curing System
An anaerobically curable composition comprising (i) a curing system for curing an anaerobically curable component, comprising a combination of a metallocene such as n-butyl ferrocene and acetyl phenyl hydrazine, (ii) the anaerobically curable component comprising: a) a solid resin component and b) a solid anaerobically curable monomer; and wherein the composition is in solid form and has a melting point in the range from 30° C. to 100° C. The metallocene may be present in the amount from about 0.05% to about 2.5% by weight based on the total weight of the composition and the acetyl phenyl hydrazine is present in the amount from about 0.05% to about 1.75% by weight based on the total weight of the composition. Compositions show greater bond strengths.
Anaerobically Curable Compositions Comprising A Metallacene And Acetyl Phenyl Hydrazine Curing System
An anaerobically curable composition comprising (i) a curing system for curing an anaerobically curable component, comprising a combination of a metallocene such as n-butyl ferrocene and acetyl phenyl hydrazine, (ii) the anaerobically curable component comprising: a) a solid resin component and b) a solid anaerobically curable monomer; and wherein the composition is in solid form and has a melting point in the range from 30° C. to 100° C. The metallocene may be present in the amount from about 0.05% to about 2.5% by weight based on the total weight of the composition and the acetyl phenyl hydrazine is present in the amount from about 0.05% to about 1.75% by weight based on the total weight of the composition. Compositions show greater bond strengths.
Composition of polyethylene glycol maleimide derivative and polymerization inhibitor
The present invention provides a composition of a polyethylene glycol maleimide derivative and a polymerization inhibitor. In particular, the present invention provides a composition of an 8-arm polyethylene glycol maleimide derivative and a phenolic polymerization inhibitor. The ingredient and content of the polymerization inhibitor in the composition are reasonably chosen, thereby significantly increasing stability of the polyethylene glycol maleimide derivative, effectively avoiding the undesirable effect of gel solidifying due to polymerization during storage and transportation, and extending a pot life and shelf life of a product thereof.
BIO-BASED MONOMERS AND POLYMERS MADE THEREFROM
Disclosed are architectural compositions, including aqueous paint and stain compositions, that utilized copolymers including bio-based cross-linking monomers and their synthetic analogues that are comparable to copolymers including DAAM cross-linking monomers. The bio-based cross-linking monomers are preferably synthetic version of the bio-based cross-linking monomers.
BIO-BASED MONOMERS AND POLYMERS MADE THEREFROM
Disclosed are architectural compositions, including aqueous paint and stain compositions, that utilized copolymers including bio-based cross-linking monomers and their synthetic analogues that are comparable to copolymers including DAAM cross-linking monomers. The bio-based cross-linking monomers are preferably synthetic version of the bio-based cross-linking monomers.
NON-SILANE POLYMERIC COUPLER
The present disclosure relates to a non-silane polymeric coupler. The non-silane polymeric coupler may include a dendritic polymer core having at least one reactive end group. The at least one reactive end-group may be selected from the group consisting of thiol, thioester, thioether, sulfanyl, mercapto, sulfide, and disulfide.
Polyoxymethylene resin composition and molded article manufactured with the same
Disclosed is a polyoxymethylene resin composition that includes a filler in an amount of about 5 to 30 wt %, a formaldehyde reducing agent in an amount of about 0.01 to 1 wt %, and a polyoxymethylene resin constituting the remaining balance of the polyoxymethylene resin composition, all the wt % based on the total weight of the polyoxymethylene resin composition. In particular, per 1 g of the polyoxymethylene resin may include an amount of 30 to 40 mol of formate at terminal ends of the polyoxymethylene resin.