BOSTIK, INC. Patent applications |
Patent application number | Title | Published |
20160102230 | Polyolefin-Based Hot Melt Adhesives With Improved Processing And Bonding Performance - A hot melt adhesive made from a blend of a polypropylene-based polymer, a polyolefin elastomer, and an amorphous polyolefin. These adhesives exhibit excellent molten and pre-set flow allowing them to wet out substrates yet develop properties needed to form and maintain strong bonds making them useful for hygiene, construction, and packaging applications. | 04-14-2016 |
20160002508 | Cohesively Failing, Non-Staining Hot Melt Adhesives - A non-pressure sensitive hot melt adhesive for use in mailer applications uses a styrenic block copolymer (SBC) with a hydrogenated mid-block as the primary polymer in the composition. The adhesive contains about 10% to about 50% by weight of the SBC, about 2% to about 30% by weight of a polyolefin polymer as a secondary polymer in the composition, about 10% to about 70% by weight of a suitable plasticizer, about 0% to about 30% by weight of a wax, about 0% to about 50% by weight of one or more tackifying resins, about 0.1% to about 4% by weight of a stabilizer, and about 0% to about 3% by weight of auxiliary additives, so that the viscosity of the composition is equal to or less than about 10,000 cP at 163° C. The formulation balances the cohesive and adhesive strength required to insure the adhesive fails cohesively to prevent paper tear. In addition, the presence of the secondary polymer allows additional oil absorption into the polymer, thus preventing oil from staining the substrates or surfaces without significantly increasing the viscosity. | 01-07-2016 |
20150313764 | NOVEL PROCESS FOR DOSING SUPER ABSORBENT PARTICLES - The present invention is directed to a novel process for dosing super absorbent polymer particles into a plurality of particles flows, comprising the steps of: (i) providing super absorbent polymer particles; (ii) imparting a rotation to said particles; and (iii) collecting separate flows of particles, wherein the step (ii) is performed with a rotating mobile ( | 11-05-2015 |
20150299526 | Polyolefin-Based Hot Melt Adhesives With Improved Properties - A hot melt adhesive composition made from polypropylene copolymer or polypropylene impact copolymer, a polyolefin elastomer, a low density polyethylene, a tackifying resin, a plasticizer, and a nucleating agent. These adhesives are fast setting yet show an improved balance of mechanical properties making them useful for hygiene, construction, and packaging applications. | 10-22-2015 |
20150275032 | Solvent-Based Low Temperature Heat Seal Coating - A low temperature heat seal coating solution which contains an amorphous or semi-crystalline polyester or co-polyester resin, tackifier, anti-blocking agent, and solvent. The coating solution can be applied to a packaging web such as a foil or film by converters using conventional methods such as gravure, rod, slot die, or printing process. The heal seal coating can be sealed to itself or another substrate to manufacture food packaging bags or pharmaceutical blister packaging. The heat seal temperature can be as low as 70° C. under conventional equipment and conditions in the industry. | 10-01-2015 |
20150203725 | Hot Melt Positioning Adhesive - A hot melt adhesive composed of a styrene-butadiene-styrene polymer having a relatively high diblock content and styrene content, a second styrenic block copolymer having a lower diblock content than the styrene-butadiene-styrene polymer, which is preferably a styrene-isoprene-styrene polymer, together with tackifying resin, and liquid plasticizer. The preferred styrene-butadiene-styrene polymer contains a styrene content of greater than 30 percent and a diblock content greater than 30 percent by weight. When used in conjunction with a styrene-isoprene-styrene polymer, the hot melt composition provides improved peel strength at 5° C., and when used as a pad attachment positioning adhesive, did not exhibit adhesive transfer at 40° C. | 07-23-2015 |
20150087760 | Hot Melt Adhesive With Functionalized Metallocene Catalyzed Polyolefins - A hot melt adhesive composition containing a functionalized polymer, namely, a metallocene catalyzed polyolefin elastomer grafted with maleic anhydride, together with a non-functionalized secondary polymer, namely, a metallocene catalyzed random or block polyolefin elastomer having a melt index equal to or greater than 15, a first tackifying resin having a softening point of at least 95° C., and a wax. The composition may optionally include an aromatic reinforcing resin having a softening point equal to or higher than 115° C., and a plasticizer. These hot melts provide superior hot tack, excellent adhesion, flexibility, and heat resistance above 150° F. in applications such as rigid packaging, hot fill packaging, and bottle labeling. | 03-26-2015 |
20150024649 | Polypropylene impact copolymer based hot melt adhesive - A hot melt adhesive using polypropylene impact copolymers that is particularly well suited for elastic attachment and stretch films in diaper structures. The hot melt adhesive composition is a blend of about 2.5% to about 30%, by weight, of a polypropylene impact copolymer; about 2.5% to about 30%, by weight, of an olefin based elastomer; about 10% to about 70%, by weight, of a tackifying resin having a softening point of at least about 80° C. and up to about 140° C.; about 0% to about 60%, by weight, of a plasticizer; and about 0.1% to about 5% of a stabilizer or antioxidant. | 01-22-2015 |
20150017868 | Hot Melt Adhesive Containing A Hydrogenated Styrenic Block Copolymer And An Ethylene Vinyl Acetate Copolymer Exhibiting Low Blocking Force - A hot melt adhesive composed of an ethylene vinyl acetate copolymer, a hydrogenated styrenic block copolymer, a tackifying resin, and a liquid plasticizer. The preferred ethylene vinyl acetate copolymer has a vinyl acetate content between 8 and 28 percent by weight, and the preferred hydrogenated styrenic block copolymer is a styrene-ethylene-butylene-styrene having about 30% styrene content and essentially no diblock. The hot melt gives excellent peel strength when used as a construction adhesive for disposable nonwoven articles. It can also be formulated to exhibit very low bleed through and blocking characteristics when used on low basis weight nonwoven fabrics. | 01-15-2015 |
20140350155 | Hot Melt Adhesive Based On Low Melting Point Polypropylene Homopolymers - A hot melt adhesive for use on porous substrates, wherein the hot melt adhesive has
| 11-27-2014 |
20140324005 | ABSORBENT ARTICLE AND PROCESS FOR MAKING IT - The present invention is directed to a liquid-absorbing article comprising:
| 10-30-2014 |
20140287902 | NOVEL PROCESS FOR PREPARING AN ABSORBENT ARTICLE - The present invention is directed to a novel process for preparing an absorbent article, wherein the process comprises providing a first sheet layer ( | 09-25-2014 |
20140276511 | ABSORBENT ARTICLE AND PROCESS FOR MAKING IT - The present invention is directed to a liquid-absorbing article comprising:
| 09-18-2014 |
20140261987 | NOVEL PROCESS FOR PREPARING AN ABSORBENT ARTICLE - The present invention is directed to a novel process for manufacturing an absorbent article comprising the steps of: providing a first sheet layer ( | 09-18-2014 |
20140187695 | High performance hotmelt window sealant - A hot applied, non-crosslinking, non-butyl, sealant. These sealants are composed of olefin polymers, styrenic block copolymers, an ethylene vinyl acetate copolymer, tackifying resins, plasticizers, and preferably inorganic fillers, and organosilane adhesion promoters. Optionally, the sealant may include UV absorbers, antioxidants, pigments, and the like. The sealants are suitable for use as edge sealants for insulated glass (IG) window units. | 07-03-2014 |
20130090421 | Petrolatum Containing Hot Melt Bottle Labeling Adhesive - A novel hot melt adhesive for bonding labels on plastic bottles is described. The adhesive comprises a blend of a styrenic block copolymer, an ethylene vinyl acetate copolymer, a tackifying resin, petrolatum and optionally a wax. The use of petrolatum instead of mineral oil provides for better elevated temperature resistance than traditional formulations. | 04-11-2013 |
20120259050 | Polyolefin Based Hot Melt Containing a Solid Plasticizer - A hot melt adhesive that is composed of a metallocene catalyzed polyethylene polymer, a hydrogenated styrenic block copolymer, a tackifying resin, and a solid plasticizer. The preferred polyethylene polymer is an ethylene-octene copolymer, and the preferred styrenic block copolymer is a styrene-ethylene-butylene-styrene having less than 30% styrene content. The preferred solid plasticizer is either glycerol tribenzoate or 1,4-cyclohexane dimethanol dibenzoate. | 10-11-2012 |
20120165455 | OBC Based Packaging Adhesive - A hot melt adhesive formulation utilizing a blend of polymers which include a polyolefin polymer and an olefinic block copolymer (OBC). The hot melt formulations demonstrate improved hot tack, adhesion, and bond line flexibility over other traditional hot melt adhesives. | 06-28-2012 |
20120164445 | Fire Extinguishing Core - A fire extinguishing adhesive film includes outer layers of adhesive and an inner fire extinguishing core comprising a layer of resin containing a high concentration of fire retardant. Low levels of fire retardant may be blended into the adhesive layers, although it is preferred that the adhesive be pure. Polyurethane resin allows for a fire retardant loading of 86% by weight in the fire extinguishing core, and therefore provides significantly higher yields of fire retardant per unit area of the film without compromising adhesive performance. | 06-28-2012 |
20110268909 | Process for Packaging Tacky Polyester Resins - A method for packaging plastic material using a film to surround the material, and more particularly to a method for packaging a copolyester, and the resulting package formed thereby. The method is preferably a coextrusion process for packaging an amorphous or semi-crystalline copolyester having a low glass transition temperature by extruding it through a die orifice, and coextruding a copolyester polymeric film having a high glass transition temperature to surround the low glass transition copolyester. The coated low glass transition copolyester may then be formed into individual packaged units having a finite size and shape. | 11-03-2011 |
20110159225 | High Performance Foam Adhesive Tape - A conformable, pressure sensitive foam adhesive tape has a closed-cell polyolefin foam core, pressure sensitive adhesive having a polyacrylate backbone with modified silyl functionality, and a coated release liner. The coating on the release liner is a platinum-catalyzed polysiloxane coating. | 06-30-2011 |
20110154772 | Moisture Curable Adhesive Composition and Method for Installing Hardwood Floors - An adhesive composition for adhesively bonding floor coverings to a variety of substrates. The composition includes 0.2 to 10 weight percent of a plurality of irregularly shaped spacer particles of size 0.5 mm to 10 mm; 10 to 50 weight percent of a moisture curable polymer system; and 40 to 90 weight percent of additives for modifying physical properties of the composition. The adhesive has a composition such that, when cured, results in an elastomeric film of uniform thickness that exhibits controlled moisture vapor transmission and sound abatement properties. A floor structure and a method for constructing the floor structure using the adhesive composition are also provided. | 06-30-2011 |
20110021103 | Hot Melt Adhesive Based on Olefin Block Copolymers - A hot melt adhesive composition, comprising a blend of components including about 5% to about 50% by weight of an olefin block copolymer; about 10% to about 70% by weight of a first tackifying resin having a softening point of at least about 95° C.; about 0 to 65% of a second tackifying resin that is different than the first tackifying resin; about 0% to about 60% by weight of a plasticizer; about 0% to about 20% by weight of an aromatic reinforcing resin having a softening point equal to or higher than 115° C.; about 0.1% to about 5% by weight of a stabilizer; and about 1% to about 40% by weight of a secondary polymer that is different from the olefin block copolymer, the first and second tackifying resins and the reinforcing resin, having relatively low crystallinity, which low crystallinity is equal to or less than 250 Joules/gram, wherein the components total 100% by weight of the composition, and the viscosity of the composition is equal to or less than about 20,000 mPa·s at 163° C. Laminates, especially those used in disposable soft goods, and methods of making such laminates using the hot melt adhesive composition are also described. The adhesive composition and/or laminate may be used in making a variety of end products such as a disposable diaper, a sanitary napkin, a bed pad, a bandage, a surgical drape, a tape, a label, a plastic sheet, a nonwoven sheet, a paper sheet, a cardboard, a book, a filter, or a package. | 01-27-2011 |
20100264369 | Hot Melt Wetness Indicator Adhesive Composition Containing UV Fluorescent Agent - A wetness indicating adhesive composition comprising an adhesive base composition incorporating a fluorescing agent in the adhesive base composition that only fluoresces when wet, and not when dry. In one embodiment, the adhesive base composition may be composed of water soluble, or at least partially water soluble, components, and in another embodiment the adhesive base composition may be composed of water sensitive components as for example one or more water insoluble polymers and a surfactant. The fluorescing agent can either be dissolved or dispersed in the adhesive base composition, and is preferably a water soluble fluorescing agent that becomes visible under ultraviolet light only when an article such as a disposable diaper becomes wet. | 10-21-2010 |
20100249313 | High Styrene SBS Hot Melt Adhesive - Multipurpose hot melt adhesive compositions which are suitable for use as both a construction and elastic attachment adhesive for disposable soft goods, such as disposable diapers, feminine sanitary napkins, surgical drapes, hospital pads, and adult incontinent products. The multipurpose hot melt adhesive compositions have a high level of creep resistance, high bond strength, and relatively low viscosity, and are composed of endblock resin in combination with a linear styrene-butadiene-styrene (SBS) copolymer wherein the copolymer has a styrene content greater than about 35% by weight, and preferably about 38% to about 50% by weight. | 09-30-2010 |
20100048801 | Process For Preparing an Aqueous Dispersion of a Quaternary Ammonium Salt Containing Vinyl Copolymer - A method of making an ion triggerable cationic polymer by solution copolymerizing one or more vinyl-functional cationic monomers, one or more water insoluble or hydrophobic vinyl monomers with alkyl side chains up to 4 carbons long, and, optionally, a minor amount of one or more vinyl monomers with linear or branched alkyl groups longer than 4 carbons, alkyl hydroxy, polyoxyalkylene, or other functional groups. The solution polymerization is accomplished by free radical polymerization in a mixture of an organic solvent such as acetone and water. After polymerization is complete, the organic solvent is preferably removed by a continuous process. The continuous process is preferably performed using a plate evaporator system. | 02-25-2010 |
20090264580 | Low Application Temperature Hot Melt Adhesive - A hot melt adhesive composition, comprising a blend of components including about 10% to about 40% by weight of an elastomeric block copolymer, preferably styrene-isoprene-styrene (SIS) or styrene-butadiene-styrene (SBS), about 15% to about 70% by weight of a first midblock tackifying resin having a softening point of at least about 110° C. and having an aromatic content of at least about 1.5% by weight; about 0 to 55% of second midblock tackifying resin, about 5% to about 35% by weight of a plasticizer; and about 0% to about 20% by weight of an end block resin having a softening point lower than 125° C.; wherein the components total 100% by weight of the composition, the viscosity of the composition is equal to or less than about 20,000 mPa·s at 120° C., and is applied at a temperature lower that 150° C. and initial bond retention of the composition on elastic strands is at least about 60%. Also, the elastic modulus G″ of the composition is higher than about 5000 Pa, the vicous modules G″ is higher than about 50 Pa, and the tan delta value is between about 0.5 and about 60. Laminates, especially those used in disposable soft goods, and methods of making such laminates are also described. The adhesive composition and/or laminate may be used in making a variety of end products such as a disposable diaper, a sanitary napkin, a bed pad, a bandage, a surgical drape, a tape, a label, a plastic sheet, a nonwoven sheet, a paper sheet, a cardboard, a book, a filter, or a package. | 10-22-2009 |