摘要:
An elastomeric-based hot melt adhesive composition having a variety of end uses, particularly in construction and elastic attachment applications on nonwoven disposable articles. The composition includes an elastomeric rubber polymer or a mixture of elastomeric rubber polymers together with a semicrystalline olefinic polymer or a mixture of semicrystalline olefinic polymers, a tackifier resin, a plasticizer, a wax and a stabilizer. The preferred elastomeric rubber polymer is an ethylene-propylene rubber copolymer (EPR) and/or an ethylene-propylene diene monomer rubber terpolymer (EPDM). The hot melt adhesive composition can be applied using common application techniques such as extruding or spraying.
摘要:
A water-based, heat sealable adhesive for laminating a decorative top layer such as vinyl, paper, or veneer to a substrate formed of a wood or agricultural product such as particleboard, fiberboard, plywood, strawboard and the like. The adhesive includes, as a primary ingredient thereof, a polymer containing one or more monomers which would when polymerized, or copolymerized yields a Shore D harness greater than the Shore D harness of the wood substrate. Monomers of this type include styrene, methyl methacrylate, vinyl acetate, vinyl chloride and diphenylmethane diisocyanate. The adhesive may also contain a coalescing agent, a filler, up to 10% by weight water, and other conditioning additives.
摘要:
A water sensitive hot melt adhesive composition based on polyalkyleneimine copolymers for use with articles such as paper products, disposable nonwoven products, tapes, labels and packaging materials. By varying the amount of copolymer included in the composition as well as by varying the chain structure and the ratio of soluble versus insoluble repeating units in the copolymer, an adhesive may be formulated to modify the degree of solubility from 100% to 0% soluble in water and/or other performance characteristics. The adhesive composition includes about 10% to about 70%, by weight, of a polyalkyleneimine copolymer or a blend of one or more polyalkyleneimine copolymers; about 0% to about 70%, by weight, of a tackifying resin; about 10% to about 70%, by weight, of a compatible plasticizer; and about 0.1% to about 3% by weight of one or more antioxidant. The adhesive maintains the article in an assembled condition by providing adequate adhesive bond strength during normal use, but dissolves in the presence of water thereby permitting the article to be recycled or otherwise disposed of in an environmentally friendly manner.
摘要:
A polybutylene based hot melt adhesive composition having a variety of end uses, particularly in construction and elastic attachment applications on nonwoven disposable articles. Unlike typical hot melt adhesives, the present composition can withstand exposure to mineral oil and other oil based ointments without experiencing catastrophic bond failure. The composition includes polybutylene copolymer or a mixture of polybutylene and polyolefin polymers, a tackifier resin, a plasticizer, a wax and a stabilizer. The hot melt adhesive composition can be applied using common application techniques such as extruding or spraying.
摘要:
PCT No. PCT/GB91/00411 Sec. 371 Date Sep. 16, 1992 Sec. 102(e) Date Sep. 16, 1992 PCT Filed Mar. 15, 1991 PCT Pub. No. WO91/13752 PCT Pub. Date Sep. 19, 1991.A component in the form of a substrate (10) comprises spacing means (14) extending in a direction outwardly from a surface (11) of the substrate (10) which spaces the surface (11) and any substance (13), such as an adhesive, carried thereon from any other surface when located adjacent the component. The spacing means (14) has a nonadhesive contactable surface and is non-deformable in normal use of the component so as to inhibit contact between the said surface (11), or any substance (13) carried thereon, and the said other surface.
摘要:
A polybutylene based hot melt adhesive composition having a variety of end uses, particularly in construction and elastic attachment applications for nonwoven articles such as disposable diapers. Unlike typical hot melt adhesives, the present composition can withstand high peel and shear loads at elevated temperatures for extended periods of time without experiencing catastrophic bond failure. The composition includes polybutylene polymer or a mixture of polybutylene and polyolefin polymers, and a stabilizer, with the remaining ingredients chosen from one or more of a polyolefin polymer, a tackifier resin, a plasticizer, or a wax. The hot melt adhesive composition can be applied using common application techniques such as extruding or spraying.
摘要:
The present invention is directed towards a hot melt wetness indicator composition based on an ethylene-alkylacrylate-acrylic acid terpolymer. The wetness indicator composition comprises the terpolymer, a tackifying resin, a compatible surfactant having a HLB value less than 20 and a pH indicator or a dye that is capable of changing color when insulted with urine, as the primary ingredients. One embodiment of the present invention is to provide a wetness indicator that has excellent heat and environmental stability, improved fastness, vivid color change, easy manufacturing, and easy application. Another embodiment is directed towards a composition having a delayed response and therefore can withstand multiple insults daily.
摘要:
A flexible polyolefin-based hot melt adhesive composition having a variety of end uses, particularly in bonding polyethylene and polypropylene films, nonwoven fabrics and elastic attachment applications in nonwoven disposable articles. The composition includes a flexible polyolefin polymer or a blend of flexible polyolefin polymers, a tackifier resin, a plasticizer, and optionally a wax and a stabilizer. The preferred flexible polyolefin polymer has a melt flow rate greater than 5 g/10 min. and a density between 0.86 to 0.90 g/cm3. The hot melt adhesive composition provides a novel combination of desirable properties including good adhesion to a variety of substrates, low viscosity, good heat stability and oil resistance. The adhesive can be applied using common application techniques such as extruding or spraying.
摘要:
A resealable packaging system is disclosed. A strip of pressure sensitive adhesive (22) is applied to a substrate, followed by a strip of cold seal adhesive being layered over the adhesive. A strip of cold seal adhesive (26) is then applied to a second area of the substrate (12), or to a different substrate. The materials are chosen so when the strips of cold seal adhesive are bonded together the bond formed between the strips of cold seal adhesive, between the pressure sensive adhesive and the cold seal adhesive, and between the cold seal adhesive and substrate are each stronger than the bond between the substrate and the pressure sensitive adhesive. Thus, when the two areas of substrate are peeled apart, the pressure sensitive adhesive remains with the cold seal adhesive and is exposed, with a multiple reseal capability thereby also being provide.