Abstract:
A system for applying a material to a substrate comprising: a feed section that comprises a feed roll and configured for advancing a material along a predetermined path; a material applicator roll configured to receive the material from the feed roll and apply a cut length of material to a substrate; a knife element located between the feed section and the material applicator roll; and a non-vacuum anvil roll positioned near the knife element, wherein the knife element and the non-vacuum anvil roll are positioned along the path of the material and engage the material to cut the material into the cut length of material for applying to the substrate, and wherein the material contacts the peripheral surface of the non-vacuum anvil roll only at a cut engagement point.
Abstract:
Disclosed is a one-part, atmospheric curing, polyurethane adhesive composition that includes a polyurethane prepolymer that includes a reaction product of a polyol component and an isocyanate component, the polyol component comprising an unsaturated fatty acid esterified polyol comprising a reaction product of a first polyol and at least one of an ethylenically unsaturated oil and an ethylenically unsaturated fatty acid, the first polyol comprising at least three hydroxyl groups, and a % NCO of from at least 4% by weight to no greater than 7% by weight based on the weight of the prepolymer, the adhesive composition exhibiting a viscosity of no greater than 15,000 centipoise at 60° C., and a T-peel value of greater than 40 grams per 25 millimeter in no greater than 4 hours, a method of making a laminate, and a laminate that includes a one-part, atmospheric curing, polyurethane adhesive composition.
Abstract:
An adhesive composition that includes: one or more polyester polyether copolymers of formula I: wherein Nu is a predominately cyclic nucleus and RI is randomly selected from either a C2-6 alkylene or an amorphous, long-chain polyether subunit including a polyoxyalkylene group; one or more polyisocyanate prepolymers that includes the reaction product of: one or more polyols; and a polyfunctional isocyanate having a functionality of more than about 2; polymeric MDI; and a first aromatic or aromatic-aliphatic polymer tackifying resin having a softening point of equal to or greater than about 100° C.
Abstract:
Disclosed is a multi-layer adhesive film including a heat curable adhesive film and a first tacky adhesive composition disposed on the first major surface of the heat curable adhesive film. The heat curable adhesive film includes a surface-deactivated solid isocyanate and a polyurethane that includes functional groups that are reactive with isocyanate. A method of making an article that includes the multi-layer adhesive film and article made thereby are also disclosed.
Abstract:
This invention claims low application temperature hot melt adhesive compositions including at least about 15% by weight of a first styrene block copolymer with a melt flow rate of at least about 15 g/10 minutes (190° C., 2.16 kgs) and a diblock content of no greater than about 10% by weight.
Abstract:
A method of making hollow fiber filtration modules including potting an end portion of a plurality of hollow fiber membranes with a multi-pack, solvent-free curable composition. The curable composition includes a Michael donor, a Michael acceptor, and a Michael reaction catalyst.
Abstract:
A two-part, solvent-free laminating adhesive including a Part A that is a liquid mixture of a first polyol and a hydroxyl functional acrylic polymer having a molecular weight of no greater than 15,000 g/mole, and a Part B that is an isocyanate-terminated polyurethane prepolymer. The adhesive is especially suited for making flexible laminates for use in food packaging. When adhered two polymeric film materials and in cured form, the adhesive provides substantially no contribution to the oxygen barrier properties of the laminate.
Abstract:
The present invention relates to a container pack comprising a plurality of containers, wherein the containers are bonded to each other with a foamed hot melt adhesive composition. In addition, the present invention also relates to the use of a foamed hot melt adhesive composition for bonding bundles of containers into packs.
Abstract:
A tape that includes a cellulosic substrate defining a first surface and an opposing second surface; a pressure sensitive adhesive disposed on the first surface of the cellulosic substrate; and an encapsulated fibrous material disposed on the first surface of the cellulosic substrate or the second surface of the cellulosic substrate.