Abstract: A hot melt adhesive composition comprising(i) 10 to 90% by weight of a sulfonated polyester condensation polymer;(ii) 0 to 80% by weight of a compatible tackifier;(iii) 0 to 40% by weight of a compatible plasticizer;(iv) 5 to 40% by weight of a compatible wax diluent with a molecular weight below 500 g/mole containing at least one polar functional group, said group being present at a concentration greater than 3.times.10.sup.-3 equivalents per gram;(v) 0 to 60% by weight of a compatible crystalline thermoplastic polymer; and(vi) 0 to 3% by weight of a stabilizer,the total of (i)-(vi) to equal 100% by weight.

Abstract: An aqueous coating composition wherein fine grains coated with water soluble resin composed of three monomers are contained in aqueous medium, each of said fine grains are composed of aqueous resin of ethylenically unsaturated monomer and aqueous colloidal silica, which are coexistent each other. Therefore, the aqueous coating composition is superior in not only contamination resistance, but also waterproof and weatherproof. The paint film formed by the above aqueous coating composition is excellent in its strength. Accordingly, this aqueous coating composition is useful for a coating base of exterior type coating material.

Abstract: In a hot melt adhesive comprising a thermoplastic block copolymer containing a block copolymer represented by formula (1) shown below (component A), tackifier (component B), diluent (component C) and stabilizer (component D), the content of component (A) is 10 to 40% by weight, the content of component (B) is 30 to 70% by weight, the content of component (C) is 30% by weight or less, and the content of component (D) is 0.1 to 4% by weight, all based on the total amount of said hot melt adhesive.A.sub.1 -B-A.sub.2 (1)wherein A.sub.1 and A.sub.2 are aromatic vinyl copolymer blocks having different molecular weights, and B is a conjugated diene polymer or hydrogenated derivative thereof;Accordingly, the hot melt adhesive described above not only fulfills the basic requirements such as adhesiveness to a polyolefin film, stability, holding ability and low cost, but also exhibits an excellent low temperature adhesiveness and satisfactory handling during spray coating process.

Abstract: Thermally-inhibited, pregelatinized non-granular starches and flours are prepared by pregelatinizing the starch or flour and thermally inhibiting the starch or flour by dehydrating the starch or flour to anhydrous or substantially anhydrous and then heat treating the dehydrated starch. The pregelatinization may be carried out prior to or after the thermal inhibition using known methods which disrupt the granular structure such by drum drying or jet cooking and spray-drying. Preferably the starch or flour is adjusted to a pH above 7.0 prior to the thermal inhibition. The starch may be dehydrated by heating the starch in a suitable heating apparatus, by extracting the water from the starch using a solvent such as ethanol, or by freeze drying the starch. Preferably the starch or flour is treated with a solvent to remove proteins and/or lipids and thus prevent off flavors.

Abstract: A carton, case or tray formed utilizing a hot melt adhesive composition said adhesive consisting essentially of a) 10 to 60% by weight of at least one ethylene n-butyl acrylate copolymer containing 25 to 45% by weight n-butyl acrylate and having a melt index of at least about 850; b) 20 to 60% of a rosin ester tackifying resin; c) 10 to 50% by weight of a microcrystalline or paraffin wax having a melting point of 150.degree. to 200.degree. F.; d) 1 to 20% by weight of a polymeric additive selected from the group consisting of ethylene vinyl acetate containing 10 to 40% by weight vinyl acetate, ethylene methyl acrylate polymers containing 10 to 28% methyl acrylate, ethylene acrylic acid copolymers having an acid number of 25 to 150, polyethylene, polypropylene, poly-(butene-1-co-ethylene), and lower melt index ethylene n-butyl acrylate copolymers; and e) 0 to 1.5% stabilizer, said adhesive characterized by a viscosity of less than 3000 cps at 135.degree. C., fiber tearing bonds from within the range of -35.

Abstract: A process for the preparation of emulsion polymers comprising 70 to 95% by weight of a vinyl ester and 5 to 30% by weight ethylene, the polymerization being carried out in the presence of 2 to 8% by weight of a protective colloid consisting of a blend of 1 to 3 percent by weight of 80% hydrolyzed polyvinyl alcohol, 0 to 2 percent by weight of 88% hydrolyzed polyvinyl alcohol and 1 to 3 percent by weight of 96% hydrolyzed polyvinyl alcohol, the blend having an average level of hydrolysis of 85 to 88%.

Abstract: In a process for the homogeneous polymerization of water insoluble polymers containing greater than 50% by weight of monomers selected from the group consisting of C.sub.1 -C.sub.18 acrylate or methacrylate esters, N-substituted acryl or methacrylamides and mixtures thereof in substantially non-aqueous organic solutions, the improvement which comprises using as the polymerization initiator a water soluble initiator dissolved in sufficient amount of water to dissolve the initiator whereby the resultant polymer is characterized by lower residual monomer levels than are obtained using equivalent amounts of water-insoluble initiators.

Abstract: A process for foaming polyurethane reactive hot melt adhesive comprising the steps of:a) melting a reactive polyurethane adhesive containing 0.05 to 0.5% by weight of a 2,2'dimorpholinodiethyl ether or di(2,6-dimethylmorpholinodiethyl)ether catalyst in a heated reservoirb) pumping the adhesive from the heated into a heated reservoir recirculating foaming device;c) foaming the adhesive by injecting therein an effective amount of an anhydrous gas;d) discharging a portion of the foamed adhesive through an orifice onto a substrate to be bonded; ande) recirculating the remaining foamed adhesive back to the foaming device for discharge at a later time.

Abstract: Polymers can be prepared by polymerizing appropriate monomers in a substantially non-aqueous liquid medium comprising a detergent and/or an ester of a polyhydic alcohol. The invention also includes novel polymers which can be prepared by this process.

Abstract: This invention discloses that styrene-butadiene-styrene block copolymers containing 30 to 50% by weight styrene and additionally having been polymerized in such a manner as to obtain a vinyl content of greater than about 35% may be used in adhesives to achieve desirable low viscosity of 1000 to 3500 cps at 160.degree. C.

Abstract: Hot melt adhesive compositions, particularly biodegradable hot melt adhesives are prepared from 10 to 90% by weight of a thermoplastic methylol polyester prepared from the reaction of at least one dicarboxylic acid with a diglycidyl ether, a diglycidyl ester or a combination thereof; 0 to 90% by weight of a compatible tackifier; 0 to 80% by weight of a compatible plasticizer; 0 to 50% by weight of a compatible wax diluent and 0 to 3% by weight of a stabilizer.

Abstract: In a process for the homogeneous polymerization of water insoluble polymers containing greater than 50% by weight of monomers selected from the group consisting of C.sub.1 -C.sub.18 acrylate or methacrylate esters, N-substituted acryl or methacrylamides and mixtures thereof in substantially non-aqueous organic solutions, the improvement which comprises using as the polymerization initiator a water soluble initiator dissolved in sufficient amount of water to dissolve the initiator whereby the resultant polymer is characterized by lower residual monomer levels than are obtained using equivalent amounts of water-insoluble initiators.

Abstract: Hot melt adhesive compositions are prepared from a water sensitive or biodegradeable thermoplastic adhesive polymer using sucrose benzoate as a tackifier. More particularly, hot melt adhesive compositions are prepared from 10 to 90% by weight of a biodegradable or water sensitive thermoplastic polymer, 5 to 80% by weight sucrose benzoate, 0 to 80% by weight plasticizing diluent, 0 to 50% by weight wax and 0 to 3% by weight antioxidant.

Abstract: An emulsion adhesion composition comprising a polyvinyl alcohol stabilized polymer emulsion; the polymer comprising 40 to 94.5% by weight of a vinyl ester of an C.sub.1 -C.sub.13 alkanoic acid, 5 to 40% by weight ethylene and 0.5 to 10% by weight N-vinyl formamide or N-vinyl pyrrolidone, the adhesive being characterized by superior adhesion and heat resistance.

Abstract: A beater saturation process for forming a nonwoven wet laid composite is provided which comprises the following steps:(I) providing an aqueous dispersion comprising:(a) 10 to 95% by weight of a water-dispersible, but water-insoluble fiber;(b) 0 to 80% by weight of a finely divided, substantially water-insoluble, non-fibrous, inorganic filler;(c) 5 to 50% by weight of an anionically charged emulsion polymer comprising 70 to 90% by weight of a vinyl ester of an alkanoic acid; 10 to 30% by weight ethylene, 0 to 70% by weight of a C.sub.2 -C.sub.8 alkyl acrylate, and 0 to 4% by weight of an anionic functional monomer,(II) colloidally destabilizing the resulting mixture to form a fibrous agglomerate in aqueous suspension;(III) distributing and draining the aqueous suspension on a porous substrate such as a wire to form a wet web; and(IV) drying the web.

Abstract: A pressure sensitive hot melt adhesive comprising a block copolymer and 60 to 95 parts of a liquid diluent, the adhesive being characterized by a midblock Tg less than -10.degree. C., a G' less than 15.times.10.sup.4 dynes/cm.sup.2 at 10 rad/s, 25.degree. C., a G" of 1 to 6.times.10.sup.4 dynes/cm.sup.2 and a tensile strength greater than 10 psi exhibit superior properties, without the need for any curing operation after cooling.

Abstract: A catalyzed polyurethane reactive hot melt adhesive is prepared from a reactive polyurethane prepolymer and 0.05 to 0.6% by weight of a 2,2'dimorpholinoethyl ether or di(2,6-dimethylmorpholinoethyl)ether catalyst. The adhesive is characterized by improved curing speed with little or no effect on the thermal stability.

Abstract: An aqueous primer composition comprising a copolymer wherein a cationic monomer, a specific alkoxysilane monomer, a silane macromonomer and an ethylenically unsaturated monomer are contained in aqueous medium. For this reason, regardless of the alkalinity of the substrate, the aqueous primer composition can form a highly water-resistant, alkali-resistant, tough film. Furthermore, compared with the prior art, a higher concentration and a lower viscosity, so that the resulting primer composition shows excellent penetration into the substrate at high concentration and provides for sufficient substrate-reinforcing and water-proofing effects. Moreover, when forming a film thereby and forming a finish layer thereon, this composition shows a high affinity for the top coating or adhesive to insure a firm integration of the finish layer with the substrate surface.

Abstract: The free formaldehyde content of the emulsion polymer, the amount of emitted formaldehyde and, even more particularly, of the finished nonwoven or textile may be substantially reduced by the use of a particular initiator system comprising a hydrophobic hydroperoxide and ascorbic acid. Moreover, this reduction in formaldehyde levels is accompanied by an unexpected improvement in the tensile properties of the emulsion binders.

Abstract: A water sensitive hot melt adhesive composition comprising 5 to 80% by weight of a A-B-A linear or radial rubbery block copolymer, 10 to 50% by weight of a water soluble or water dispersible plasticizer; 0 to 85% by weight of a compatible tackifying resin; 0 to 35% by weight polar wax; and 0 to 3% by weight stabilizer.