Ato Findley, Inc.

Bostik Findley, Inc.

Other

Bostik, Inc.

Findley Adhesives, Inc.

Diane M Strelow

Mark D Alper

Mark A Gibes

Monina Dadap Kanderski

Lacretia A Svenningsen

Baoyu Wang

Chongyao Zhang

Russell P Stuczynski

Bonnie M Harris

Marihelen Hoppa-Willbrandt

James D Carper

Margaret M Oteman

Johannes Cornelis Simons

Monina Dapap Kanderski

A hot melt adhesive composition is based on an isotactic polypropylene random copolymer (RCP). The composition contains about 4%-50% by weight of the RCP copolymer, about 20%-65% by weight of a compatible tackifier, about 0%-40% by weight of a plasticizer, about 0%-3% by weight of a stabilizer, about 0%-40% by weight of a wax, about 0%-60% by weight of an atactic poly-&#x3b1;-olefin (APAO), and about 0%-40% by weight of a secondary polymer. The adhesive composition may be used in a number of applications such as, for example, in disposable nonwoven hygienic articles, paper converting, flexible packaging, wood working, carton and case sealing, labeling and other assembly applications.

Hot melt adhesive composition based on a random copolymer of isotactic polypropylene and a secondary polymer

A hot melt adhesive composition is based on an isotactic polypropylene random copolymer (RCP). The composition contains about 4%&#x2013;50% by weight of the RCP copolymer, about 20%&#x2013;65% by weight of a compatible tackifier, about 0%&#x2013;40% by weight of a plasticizer, about 0%&#x2013;3% by weight of a stabilizer, about 0%&#x2013;40% by weight of a wax, and optionally about 0%&#x2013;60% by weight of an atactic poly-&#x3b1;-olefin (APAO). The adhesive composition may be used in a number of applications such as, for example, in disposable nonwoven hygienic articles, paper converting, flexible packaging, wood working, carton and case sealing, labeling and other assembly applications.

Hot melt adhesive composition based on a random copolymer of isotactic polypropylene

Hydrophilic hot melt adhesive compositions suitable for a variety of applications, especially in nonwoven disposable articles, are prepared by blending various adhesive components with a surfactant. The surfactant has a hydrophile-lipophile balance (HLB) number of less than 15, and is incorporated into the composition in an amount such that the resultant adhesive has a contact angle of 75&#xb0; of less, and preferably less than about 40&#xb0;. A low contact angle is desirable so that water, urine or other water-based discharges, upon contacting a laminate bound together by the adhesive, wets out rather than beads up resulting in the fluid being directed away from the adhesive and towards an absorbent core of the disposable article.

Hydrophilic hot melt adhesive

Hot melt adhesive compositions suitable for a variety of applications, especially in nonwoven disposable articles, are prepared by blending various adhesive components with a bacteriostat. The bacteriostat is incorporated into the adhesive compositions in sufficient amounts to inhibit the growth of various microorganisms, particularly bacteria. The preferred bacteriostat is triclosan in amounts of 0.01% to 5% by weight.

Antimicrobial hot melt adhesive

The fabrication of multi-layered laminated structures involves a high strength through-bonding technique. In its preferred embodiment, the structure is a nonwoven trilaminate structure which has outer layers of nonwoven material, and an inner elastomeric layer which has a plurality of openings therethrough, (e.g., an elastomeric mesh). During fabrication, beads of through-bonding adhesive (e.g., oil resistant, polybutylene-based hot melt adhesive) is applied to at least one of the nonwoven webs. The inner elastomeric mesh web and the two outer nonwoven webs are then aligned and fed into a compression nip. The compression nip compresses the webs together to obtain intimate contact of the two outer nonwoven webs through the openings in the inner elastomeric mesh web. In the resultant trilaminate web, the inner elastomeric mesh layer is mechanically secured within the trilaminate structure via the through-bonding even if bonds directly between the inner elastomeric mesh and either of the outer nonwoven webs fail. Preferably, the beads of through-bonding adhesive are applied only in regions of the web where strength enhancement is desired to insure the integrity and durability of the finished product, e.g. adjacent the longitudinal edges of the finished nonwoven trilaminate product.

High strength through-bonding technique for elastomeric laminates

Hydrophilic hot melt adhesive compositions suitable for a variety of applications, especially in nonwoven disposable articles, are prepared by (blending various adhesive components with a surfactant.) The surfactant has a hydrophile-lipophile balance (HLB) number of less than 15, and is incorporated into the composition in an amount such that the resultant adhesive has a contact angle of 75&deg; of less, and preferably less than about 40&deg;. A low contact angle is desirable so that water, urine or other water-based discharges, upon contacting a laminate bound together by the adhesive, wets out rather than beads up resulting in the fluid being directed away from the adhesive and towards an absorbent core of the disposable article.

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 emollients such as mineral oil and other oil-based ointments without experiencing catastrophic bond failure. The composition includes a polybutylene-based polymer or a mixture of a polybutylene-based polymer and a polyalphaolefin polymer, 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.

Nonwoven absorbent article containing an emollient resistant

An alkali soluble hot melt composition for melt blowing applications is described which maintains a viscosity of at least 50,000 cp at temperatures of 350.degree. F. The adhesive composition in cludes about 20% to about 95%, by weight, of an alkali soluble polymer; about 0% to about 50%, by weight, of a crystalline resin; about 0-50% by weight, of a suitable filler; and about 0% to about 50%, by weight, of a suitable plasticizer.

pH sensitive thermoplastic binder

A method of utilizing microwave energy in the manufacture of disposable nonwoven absorbent articles such as diapers and feminine care products. More specifically, the traditional hot melt adhesives utilized in the production of disposable nonwoven absorbent articles are replaced by adhesives that are microwave sensitive, and which can be activated by microwave energy to provide strong bonds for the finished article.

Method of making disposable nonwoven articles with microwave activatable

A hot melt construction adhesive having a high acid number and which possesses superior properties for the construction of disposable soft goods. The adhesive composition includes an A-B-A block copolymer; a resin; a compatible mineral oil; and an antioxidant; and wherein the hot melt construction adhesive has a viscosity of less than 10,000 cP at 325.degree. F., a melting point of less than 190.degree. F., and an acid number of greater than 30.

Hot melt adhesive having a high acid number for disposable soft goods

A hot melt adhesive is described which possesses superior properties for the construction of disposal soft articles and more specifically disposable soft articles which may be exposed to moisture for prolonged periods of time. The adhesive composition includes about 10% to about 60% by weight of a butene-1-ethylene copolymer; about 20% to about 80% by weight of a tackifying resin; about 5% to about 30% by weight of a plasticizer; and about 0.1% to about 3% by weight of an antioxidant, wherein the ingredients total 100%, by weight, of the entire adhesive composition.

Hot melt adhesive having improved wet strength

A hot melt adhesive composition is described which possesses properties which are desirable with respect to the construction of disposable articles. The adhesive composition includes about 10% to about 80%, by weight, of an alkali soluble polymer; about 0 to about 30%, by weight, of a poly (vinyl methyl ether); about 30% to about 70%, by weight, of a tackifying resin; and about 5% to about 30%, by weight, of a suitable plasticizer.

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Wauwatosa, WI, United States of America

Diane M Strelow