Abstract: This invention relates to a foamable composition comprising at least two parts. More specifically, the first part comprises at least one polyol, at least one gelling agent, and at least one blowing agent wherein the first part comprises an effective amount of hydrophobic ingredients and a second part comprising at least one isocyanate. A foam mass can be prepared by a method of combining a polyol component with an isocyanate component substantially free of urethane prepolymer and applying the mixture to a void or substrate. The invention also relates to methods of using certain polyurethane compositions in the repair of surface defects or for the reinforcement of structural members such as spike holes left after spike removal from railroad ties during road bed maintenance or repair. This invention further relates to a method of foaming certain polyurethane compositions in the presence of water.
Abstract: A method of bonding two substrates at least one of which is a rubbery polymeric material having carbon-carbon double bonds on the polymer backbone, the method comprising:
a) applying an aqueous polyurethane dispersion adhesive composition to at least one of the substrates, the adhesive compostion further comprising an epoxy resin;
b) allowing the composition to dry; and then
c) joining the substrates with heating to activate the adhesive. The substrates are suitably footwear materials such as a molded rubber outer sole which has been first primed with a chlorinating primer, and a foam midsole of a material such as a lightly crosslinked ethylene vinyl acetate. The process results in bonded assemblies having improved humidity resistance.
Type:
Grant
Filed:
December 8, 1998
Date of Patent:
September 11, 2001
Assignee:
H. B. Fuller Licensing & Financing, Inc.
Inventors:
Yuduo Zhu, Robert J. Duff, Peter Gottschalk, Brian L. Marty
Abstract: Adhesive compositions are disclosed that include a block copolymer that includes monomers selected from the group consisting of styrene, isoprene, butadiene, and combinations thereof, from about 0.5% to about 10% by weight surfactant, and a tackifying agent. The adhesive composition has a surface tension of at least about 34 dynes/cm2.
Type:
Grant
Filed:
October 8, 1999
Date of Patent:
September 11, 2001
Assignee:
H. B. Fuller Licensing & Financing, Inc.
Abstract: The present invention relates to water-based pressure sensitive adhesives comprising at least one water-based polymer and at least one aminoplast resins such as melamine-formaldehyde resins, urea-formaldehyde resins, alkylated melamine-formaldehyde resins and combinations thereof. More particularly, the invention relates to water-based pressure sensitive adhesives comprising the reaction product of aqueous polymer dispersions and water dispersible melamine-formaldehyde resins. The pressure sensitive adhesives are characterized as having enhanced bonding characteristics including loop tack, peel strength, and shear strength making them particularly useful for the manufacture of dry-bonded laminates, tapes, labels, medical patches and devices, flexible packages, furnace ducts, exterior insulating finish system and the like.
Abstract: The present invention relates to a water based laminating adhesive composition and a method of using thereof. More particularly, the invention relates to a water-based laminating adhesive comprising: a first component comprising at least one aqueous vinyl polymer dispersion (A) comprising the reaction product of i) at least one ethylenically unsaturated monomer; ii) at least one free radical initiator; and iii) optionally, at least one ethylenically unsaturated oligomer; and b) a second component comprising at least one water dispersible polyfunctional aziridine crosslinking agent (B). The adhesive optionally comprises at least one aqueous polyurethane polymer dispersion (C). Improved bonded properties of dry laminated flexible film substrates such as polyolefin, polyester and polyamide, as well as cellophane, metals or paper are obtained.
Type:
Grant
Filed:
June 4, 1998
Date of Patent:
June 19, 2001
Assignee:
H. B. Fuller Licensing & Financing, Inc.
Inventors:
George A. Papsin, Thomas E. Rolando, Peter A. Voss
Abstract: This invention relates to a hot melt adhesive composition in pellet form. The hot melt adhesive composition is pressure sensitive, having a storage modulus, G′, at 25° C., of less than about 5×106 dynes/cm2. The pellets are coated with a pelletizing aid on the surface at a concentration preferably ranging from about 1 wt-% to about 30 wt-%. The pelletizing aid is a hot melt adhesive component or a material which does not substantially adversely affect the adhesive properties.
Type:
Grant
Filed:
May 31, 2000
Date of Patent:
May 29, 2001
Assignee:
H. B. Fuller Licensing & Financing Inc.
Inventors:
Janelle C. Cameron, Carolyn A. Fischer, Nicholas C. Lehman, Jeffrey S. Lindquist, Christopher E. Olson, Steve A. Fox
Abstract: The present invention relates to a flame retardant hot melt composition comprising from about 10% to about 60% by weight of the adhesive of at least one copolymer of ethylene, from about 10% to about 70% by weight of the adhesive of a flame retarding hydrated inorganic compound and from about 5% to about 35% by weight of at least one wax component.
Type:
Grant
Filed:
November 30, 1998
Date of Patent:
May 29, 2001
Assignee:
H. B. Fuller Licensing & Financing, Inc.
Abstract: The present invention relates to an aqueous laminating adhesive composition and a method of using thereof. More particularly, the invention relates to an aqueous laminating adhesive composition comprising at least one aqueous polyurethane polymer dispersion (A), at least one aqueous non-polyurethane polymer dispersion (B) prepared by free radical polymerization, and at least one water dispersible polyfunctional crosslinking agent (C). Improved bonded properties of dry laminated flexible film substrates such as polyolefin, polyester and polyamide, as well as cellophane, metals or paper are obtained.
Type:
Grant
Filed:
June 4, 1998
Date of Patent:
May 22, 2001
Assignee:
H. B. Fuller Licensing & Financing, Inc.
Abstract: The present invention is a cold seal composition having certain rheological properties. The composition comprises from about 10 wt-% to 100 wt-% of at least one homogeneous ethylene/&agr;-olefin interpolymers. The novel adhesive compositions of the present invention may be coated onto a variety of substrates, resist blocking upon being supplied as a roll-good, and exhibit a wide range of bond strengths, amenable to a variety of cold seal bonding applications.
Type:
Grant
Filed:
November 25, 1998
Date of Patent:
April 24, 2001
Assignees:
H. B. Fuller Licensing & Financing, Inc., The Dow Chemical Company
Inventors:
John P. Baetzold, Robert G. Polance, Michelle M. Chanak
Abstract: Reactive hot melt polyurethane adhesives are useful in the graphic arts area, and in particular, for bookbinding applications such as casemaking, casing-in, gluing-off or thread-securing, facing, slip cases, lining-up, tightbacking, and bonding sides and joints; and for puzzle and gameboard lamination.
Type:
Grant
Filed:
December 18, 1997
Date of Patent:
March 27, 2001
Assignee:
H. B. Fuller Licensing & Financing, Inc.
Inventors:
Kang Yang, David B. Malcolm, Michelle B. Acquaye, Kevin J. Reid, John M. Zimmel
Abstract: Described is a filter and a method for preparing the filter that includes a porous filter media that is bonded to an end cap using a two-part, isocyanate-based adhesive. The adhesive is free of inorganic pigments and fillers and is the reaction product of at least one polymeric polyol component and at least one polyisocyanate component. The polyol component includes a high MW triol having sufficiently different intrinsic reaction rates to generate phase separation during curing. The components react and cure to form a product having an L* white value greater than about 60.
Type:
Grant
Filed:
August 11, 1999
Date of Patent:
February 27, 2001
Assignee:
H. B. Fuller Licensing & Financing, Inc.
Abstract: The invention is a disposable article comprising a discontinuous coating of a hot melt PSA permanently adhered to at least one substrate wherein the adhesive has a shear adhesion failure temperature of greater than about 79° C. (175° F.). Preferably, the adhesive is pattern coated directly onto a polyolefin film for use in a variety of articles including adhesive bandages, tape and feminine napkins.
Type:
Grant
Filed:
June 17, 1998
Date of Patent:
January 30, 2001
Assignee:
H. B. Fuller Licensing & Financing, Inc.
Abstract: The present invention relates to a high temperature resistant coating composition and a method of using thereof. More particularly, the invention relates to a coating composition comprising a resin containing functional hydroxyl groups (A), a polyfunctional epoxy resin (B), and an anhydride compound.(C).
Abstract: A hot melt pressure sensitive adhesive comprising a) from about 15% to about 40% by weight of a block copolymer having a coupling efficiency of less than about 75%; b) from about 20% to about 50% by weight of a tackifying resin selected from the group consisting of those tackifying resins having a softening point of less than about 100° C.; c) from about 30% to about 50% by weight of a plasticizing oil; and d) up to about 15% of a compatible polymer wherein the total polymer content does not exceed 40% by weight of the adhesive wherein the hot melt pressure sensitive adhesive fails cohesively during use.
Type:
Grant
Filed:
June 12, 1997
Date of Patent:
January 9, 2001
Assignee:
H. B. Fuller Licensing & Financing, Inc.
Abstract: The present invention is a hot melt pressure sensitive adhesive comprising a block copolymer structure having an A--B--A backbone block copolymer having B or C blocks attached to the backbone, wherein the A--B--A block backbone is saturated and the B or C block is of the same composition or of a different composition than the midblock of the backbone.
Abstract: A method of manufacturing powder coating compositions, the powder coating compositions, and cured coatings made from the coating compositions are described. The method of preparing the coating compositions comprises combining a preformulated thermally softenable resin powder (having a defined T.sub.g) and a reflective pigments (such as a non-leafing or leafing metallic flake, mica, optically variable pigment, and the like) and then mixing the powder and flake under high shear conditions and assuring that the average temperature of the mixture remains below the T.sub.g of the resin during the high speed mixing process.
Type:
Grant
Filed:
October 7, 1997
Date of Patent:
December 26, 2000
Assignee:
H. B. Fuller Company
Inventors:
Walter J. Blatter, Thomas J. Crompton, Gregory D. Walls
Abstract: This invention relates to a hot melt moisture cure polyurethane composition which is the reaction product of a polyether polyol formed from a compound selected from the group consisting of ethylene oxide, propylene oxide, 1,2-butylene oxide, 1,4-butylene oxide and mixtures thereof; a low molecular weight polyalkylene glycol having from 3 to 7 carbon atoms; a crystalline polyester polyol having a melting point from about 40.degree. C. to about 120.degree. C.; and at least one polyfinctional isocyanate component wherein said composition has a moisture vapor transmission rate of greater than about 100 g/m.sup.2 /day film thickness of from about 450 to about 500 g/m.sup.2, and hydrolysis resistance.
Abstract: A light weight, vibration-damping composition having effective amounts of at least one butyl rubber, at least one tackifying resin, at least one pigment and substantially spherical microspheres is disclosed. The present composition has a specific gravity of about 1.0 to 1.2 and has effective damping effects at low temperatures as well as temperatures up to about 60.degree. C. This composition is effective for use in the transportation industry, the building industry, the aerospace industry and the appliance industry.
Abstract: An automated system of integrated computer programs and files facilitates compliance with Chemical Control Laws of different jurisdictions. In one embodiment, the system uses a raw material database file, a formula database file, a manufacturing status database file, a sales status database file, a regulatory worksheet program, and an update program, all residing on a computer system. These files and programs are collectively used to: maintain Chemical Control Law inventories; maintain records of chemical and product Chemical Control Law registrations; provide a basis for automated control of chemical or product manufacturing, distribution, importing and exporting through the generation of country or regional manufacturing and sales status; generate certification letters; generate Chemical Control Law manufacturing and sales statuses for particular countries or regions of the world; and provide real-time updating of a chemical's or product's manufacturing and sales status.
Type:
Grant
Filed:
February 18, 1998
Date of Patent:
September 19, 2000
Assignee:
H. B. Fuller
Inventors:
Keith William Wiitala, David Philip Swanson, Joseph James Purdes
Abstract: This invention relates to a hot melt adhesive composition in pellet form. The hot melt adhesive composition is pressure sensitive, having a storage modulus, G', at 25.degree. C., of less than about 5.times.10.sup.6 dynes/cm.sup.2. The pellets are coated with a pelletizing aid on the surface at a concentration preferably ranging from about 1 wt-% to about 30 wt-%. The pelletizing aid is a hot melt adhesive component or a material which does not substantially adversely affect the adhesive properties. The pellets are free-flowing and have a substantially tack-free surface.
Type:
Grant
Filed:
October 8, 1998
Date of Patent:
September 19, 2000
Assignee:
H. B. Fuller Licensing & Financing Inc.
Inventors:
Janelle C. Cameron, Carolyn A. Fischer, Nicholas C. Lehman, Jeffrey S. Lindquist, Christopher E. Olson, Steve A. Fox