Paste adhesive paper

Latex copolymers including NIBA have found applications in protective coatings, binders for nonwoven fabrics, water and oil repellancy, crease resistance, print pastes, leather finishing, adhesives, paper impregnation, curable thickeners and elastomers. (2B). Comonomers include acrylic and methacrylic esters, acrylo nTtrile, styrene, and occasionally vinyl acetate or vinyl chlorida... 

Products and Uses Used in shoe polish, furniture polish, roof paints, waterproof paints, adhesives, pastes, carbon paper, and substitute for carnauba and bees-... 

The majority of starch-derived adhesives are used in the paper and textile industries as binders and sizing materials. However, the discussion in this chapter is limited to glues and pastes, since paper and textile uses have been covered thoroughly elsewhere [12]. This section provides an overview of several gluing applications, with special attention to the properties required of the glue in each case. 

Uses Emulsifier, antistat solubilizer for vitamin oils, essential oils, balsam, and tar preps, in cosmetics emulsifier for petrol, oils, fats, soivs., and household waxes solubilizer for flavors emulsifier for paraffin type waxes for use in textile and paper coatings lubricant antistat food pkg. adhesives, paper food-contact defoamer and emulsifier RegMory FDA 21CFR 172.515,172.836,173.340,175.105,176.180, 176.210,178.3400 DOT nonregulated Properties Yel. vise, liq/paste disp. or sol. in most soivs. and oils disp. in water b.p. > 300 F HLB 15.0 sapon. no. 45.0-55.0 hyd. no. 81.0-96.0 flash pt. (COC) 300 F nonionic 97% cone. 

Silicone base papers are used as carrier papers for the later application of a onesided or two-sided layer of silicone, onto which, in the following operations, further layers, e.g. adhesive in combination with label paper, are applied. Silicone base papers presuppose special quality features. These include, above all, high compaction, uniform caliper and moisture, high transparency, strength, good flatness and a low surface roughness which ensures that the later application rates of the cost-intensive silicone are minimized. The basis weight of the silicone base paper is between 60 and 160 g m . As in the past, these papers are calendered offline on special supercalenders with at least 15 rolls. The resilient rolls consist of a... 

Three adhesives are used in paper bag manufacture side seam adhesives, bottom paste adhesives, and cross pastes. The side seam adhesive is used to form a cylinder from a flat sheet of paper. This adhesive must develop a strong bond quickly, so the tube can be cut for further operation. The viscosity should be about 3,000 cP. and solids about 25%. One formulation is water 68%, dextrin 28% heat to 160°F (71°C), add 3% borax, heat to 190°F (88° C), add 3% preservative. A water-resistant formulation is water 1700 pounds, white dextrin 700, soap 2, urea-formaldehyde 70, heat to 200°F (93°C), dilute with cold water to 260 gal volume, and add 14 pounds ammonium chloride. This formulation should be used immediately. Its pH is about 6. ... 

An adhesive may be defined as a material which when applied to surfaces of materials can join them together and resist separation. Adhesive is the general term and includes cement, glue, paste, etc. and these terms are all used essentially interchangeably. Various descriptive adjectives are often applied to indicate certain characteristics. For example, to indicate the physical form of the adhesive, e.g. liquid adhesive, liquid two-part adhesive, film adhesive its chemical form, e.g. epoxy adhesive, cyanoacrylate adhesive, polychloroprene adhesive to indicate the type of materials bonded, e.g. metahto-metal adhesive, paper adhesive, wood adhesive or to show the conditions of use, e.g. solvent based adhesive, cold-hardening, or -curing, adhesive, hot-melt adhesive. 

Phenolic materials go back to the patents of Baekeland and are based upon the reaction of phenol and formaldehyde to yield a lower molecular weight resinous material that can be formulated with other resins and sometimes other curatives to yield a paste adhesive or a film adhesive. When phenol and formaldehyde are reacted in the presence of an acidic catalyst with an excess of phenol versus formaldehyde, they yield what are known as novolac resins. These materials are soluble in organic solvents and do not react further with themselves thus, they need to have a curative added. That curative is most often hexamethylene tetraamine. Another type of phenolic resin can be generated with an excess of formaldehyde and under basic conditions. These materials, known as resole phenolics, will react with themselves to yield a ftilly cured phenolic and thus must be stored frozen in order to limit this reaction. Thus, resole phenolics do not need an external CTOsslinker. Resole phenolics are widely used in the binding of paper products and the bonding of wood. Adhesives based upon these materials were brittle and could only be used to bond wood, where it is still widely used. A more widely usable adhesive was developed during World War II which modified the very brittle phenolic adhesive with poly(vinyl formal) resins. These materials were... 

Liquid or solid films which reduce or prevent adhesion between surfaces solid-solid, solid-paste, solid-liquid. Waxes, metallic soaps, glycerides (particularly stearates), polyvinyl alcohol, polyethene, silicones, and fluorocarbons are all used as abherents in metal, rubber, food, polymer, paper and glass processing. 

Nonfood Uses. Native com starch is principally used in nonfood appHcations in mining, adhesives, and paper industries. Pregelatinized starch is chemically unmodified, but it is physically modified. Pregelatinized starches are used to decrease water losses in oil-weU drilling muds, in cold water-dispersable wallpaper pastes, and in papermaking as an internal fiber adhesive. 

Lignins from waste hquors are also used as extenders for phenoplasts and in adhesives for laminated paper and board, hnoleum pastes, animal feedstuff pellets, etc. 

Since n is less than unity, the apparent viscosity decreases with the deformation rate. Examples of such materials are some polymeric solutions or melts such as rubbers, cellulose acetate and napalm suspensions such as paints, mayonnaise, paper pulp, or detergent slurries and dilute suspensions of inert solids. Pseudoplastic properties of wallpaper paste account for good spreading and adhesion, and those of printing inks prevent their running at low speeds yet allow them to spread easily in high speed machines. 

Sikishu Kozogami Mare paper was pasted out with methylcellulose and applied to the back of the tapa. The backed tapa was placed face up on blotter paper and the edges weighted to provide tension until the backing was dry. A small amount of moisture from the adhesive was evident on the blotters, but did not come through to the face of the tapa. 

Uses For sizing papers and in preparing pastes and adhesives. 

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