Abstract:
The adhesive of the present invention includes latexes with an adhesion promoter which is preferably polyamidoamine. The addition of the polyamidoamine improves the adhesive strength between substrates such as between two plastic films or between a plastic film and paperboard. The present invention also relates to an adhesive prepared from a latex which is neutralized with a particular base and a hydrophobic polyamidoamine having particular amine values and viscosity whereby the strength of the adhesive bond is increased in humid conditions. The present invention also relates to an adhesive which is stable in the presence of water containing high levels of ions.
Abstract:
Bimodal latexes having two separate and distinct particle size distributions have high solids content, good high shear rheology and good low shear viscosity. These bimodal latexes, e.g., styrene/butadiene/acrylic acid/itaconic acid latexes are employed in coating paper in conjunction with a mineral filler using a coating device such as a blade coater to yield high quality coatings which can be easily applied.
Abstract:
A process for preparing a sheet with improved stiffness by mixing a fiber, a latex having minimum film-forming conditions greater than the conditions the sheet reaches during drying and a fugitive coalescing agent. The mixture is collected and dried under conditions less than the minimum film-forming conditions of the latex. The process enables hard latexes to be employed which do not form films under the drying conditions of the sheet whereby the hard latexes can contribute to the stiffness of the final sheet. A sheet prepared by the process is also provided.
Abstract:
Latexes containing particles having pendant coreactive groups and oxazoline groups . Said latexes are self-curing yielding films and other articles having excellent tensile strength and resistance to water and other solvents. In addition, a process for making such latexes is disclosed.
Abstract:
Bimodal latexes having two separate and distinct particle size distributions have high solids content, good high shear rheology and good low shear viscosity. These bimodal latexes, e.g., styrene/butadiene/acrylic acid/itaconic acid latexes are employed in coating paper in conjunction with a mineral filler using a coating device such as a blade coater to yield high quality coatings which can be easily applied.
Abstract:
Des latex bimodaux possédant deux distributions granulométriques séparées distinctes ont une forte teneur en solides, une rhéologie de cisaillement élevée et une faible viscosité de cisaillement. Ces latex bimodaux, par exemple des latex styrène/butadiène/acide acrylique/acide itaconique, sont utilisés lors d'un revêtement de papier de concert avec une charge minérale utilisant un dispositif de revêtement comme un enducteur à lame pour produire des revêtements de haute qualité qui peuvent être facilement appliqués.
Abstract:
The adhesive of the present invention includes latexes with an adhesion promoter which is preferably polyamidoamine. The addition of the polyamidoamine improves the adhesive strength between substrates such as between two plastic films or between a plastic film and paperboard. The present invention also relates to an adhesive prepared from a latex which is neutralized with a particular base and a hydrophobic polyamidoamine having particular amine values and viscosity whereby the strength of the adhesive bond is increased in humid conditions. The present invention also relates to an adhesive which is stable in the presence of water containing high levels of ions.