3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7198882 | Adhesion promoting polymeric materials and planographic printing elements containing them The present invention provides a planographic printing element suitable to receive and bond with a subsequently applied hydrophilic layer comprises a substrate layer, such as polyester film or paper, having coated thereon an adhesion layer, said adhesion layer compr... | 04/03/2007 |
| 6884563 | Thermal imaging material containing combustible nitro-resin particles A heat-sensitive composition can be used to make a heat-sensitive imaging material. The composition includes a water-soluble or water-dispersible binder and dispersed therein, a photothermal conversion material, and hybrid particles of a combustible nitro-resin and ... | 04/26/2005 |
| 6465152 | Imaging member containing heat sensitive thiosulfate polymer on improved substrate and methods of use An imaging member is composed of a hydrophilic imaging layer having a hydrophilic heat-sensitive polymer containing heat-activatable thiosulfate groups, and optionally a photothermal conversion material. Upon application of energy that generates heat, suc... | 10/15/2002 |
| 6458509 | Resist compositions A resist composition comprising: a curable composition mainly comprising (1) at least one of an alkali-soluble acrylic compound and an alkali-soluble methacrylic compound; (2) a fine-particulate crosslinked elastic polymer having a carboxyl group; and (3)... | 10/01/2002 |
| 6387585 | Self-contained imaging assembly having improved peel strength A self-contained photohardenable imaging assembly comprising a first transparent polymeric film support, an imaging layer comprising a plurality of photosensitive microcapsules, a developer material and an adhesion promoter, and a second support which may... | 05/14/2002 |
| 6146819 | Silver halide photographic light-sensitive material There is disclosed a silver halide photographic light-sensitive material which comprises a polyester film support, at least one subbing layer containing a self-emulsifiable isocyanate compound having an ethylene oxide recurring unit and two or more isocya... | 11/14/2000 |
| 6132925 | Silver halide light-sensitive material comprising support, hardening layer and light-sensitive layer A silver halide light-sensitive material comprises a support, a hardening layer and a light-sensitive layer in order. The light-sensitive layer contains silver halide and a hydrophilic polymer. The hardening layer or the light-sensitive layer contains a r... | 10/17/2000 |
| 6066432 | Silver halide light-sensitive material comprising support, hardening layer and light-sensitive layer A silver halide light-sensitive material comprises a support, a hardening layer and a light-sensitive layer in order. The light-sensitive layer contains silver halide and a hydrophilic polymer. The hardening layer or the light-sensitive layer contains a r... | 05/23/2000 |
| 6045978 | Chemically treated photoresist for withstanding ion bombarded processing A photosensitive photoresist material which is effective for use as an ion etch barrier layer after patterning. The photoresist composition includes the reaction product of a compound having the general formula R1 --COO--(CH2)n | 04/04/2000 |
| 6037108 | Thermally stable subbing layer for imaging elements A support for an imaging element is described, which support comprises a polyester polymeric film having coated thereon a subbing layer comprising gelatin and a multi-hydric organic compound having at least three hydroxyl groups, which gelatin subbing lay... | 03/14/2000 |
| 5998103 | Adhesion promotion method employing glycol ether acetate as adhesion promoter material A method for forming a hydrophobic material layer upon a hydrophilic material layer over a substrate. There is first provided a substrate. There is then formed over the substrate a hydrated hydrophilic material layer. There is then treated the hydrated hy... | 12/07/1999 |
| 5976762 | Photosensitive element and process for producing multilayer printed wiring board A photosensitive element comprising a temporary support having thereon an aqueous resin layer which contains at least one kind of fine particles having an average particle size or agglomerated particle size of 1 to 10 μm. The fine particles impart a roug... | 11/02/1999 |
| 5968646 | Molecular grafting of hardener/gelatin blends to energetically treated polyesters to promote adhesion of layers The present invention comprises a polyester film support in which the surface has been subjected to an energetic treatment with nitrogen plasma to produce amine groups on the polyester surface. The treated surface is then coated with a dilute solution of ... | 10/19/1999 |
| 5712080 | Method for manufacturing printed circuit board A method for manufacturing printed circuit board by forming wiring pattern by chemical metal plating using a negative pattern made of a photosensitive resin composition layer as the plating resist, wherein the photosensitive resin comprises at least a lin... | 01/27/1998 |
| 5320933 | Photoimageable composition having improved adhesion promoter A photoimageable composition contains from 0.5 to 5 wt. percent of a compound of the formula: ##STR1## wherein R=alkyl, aryl, aralkyl, alkenyl, alkynyl, and substituted forms thereof X=OR', SR', NR'2, R' R'=H, R, CO--R, G=nothing or C... | 06/14/1994 |
| 5296333 | Photoresist adhesion promoter A positive photoresist adhesion promoter which is provided as a thin layer between a resist such as polymethylmethacrylate for use on gallium arsenide is described. The positive photoresist adhesion promoter includes a mixture of a positive photoresist wi... | 03/22/1994 |
| 5279934 | Photographic light-sensitive elements Photographic elements having at least one light-sensitive layer and at least one layer having polymeric matte particles surrounded by a layer of colloidal organic particles.... | 01/18/1994 |
| 5091290 | Process for promoting adhesion of a layer of photoresist on a substrate having a previous layer of photoresist A process for promoting photoresist adhesion on a semiconductor wafer having a previously applied photoresist layer. The process is adapted for semiconductor manufacture in which a first photoresist layer has been applied to the wafer and in which a secon... | 02/25/1992 |
| 5081005 | Method for reducing chemical interaction between copper features and photosensitive dielectric compositions The surface of metallic features are coated with a desensitizer composition comprising an amino-silane to reduce the likelihood of chemical interaction between the metallic feature and a photosensitive functional group that is included in a dielectric com... | 01/14/1992 |
| 4971885 | Microcapsule coating compositions containing coupling agents for improved adhesion A recording sheet which comprises a substrate having a large of a metal on the surface thereof, and a layer of microcapsules, said layer of microcapsules including a coupling agent to improve the adhesion of said microcapsule layer to said metal layer; th... | 11/20/1990 |
| 4970134 | Mixture crosslinkable by photopolymerization Multilayer, photosensitive recording materials which can be developed with aqueous media contain one or more layers of a mixture which is crosslinkable by photopolymerization, soluble or dispersible in aqueous media and based on polymer containing hydroxy... | 11/13/1990 |
| 4943513 | Photoimageable composition with reduced cold flow due to salt-bridging by metal ions and dry film formed therefrom A photoimageable composition of the negative acting type which includes a binder polymer which contains carboxyl groups is provided with a metal chelate in which the coordination number of the metal is 2 or higher. When the photoimageable composition is c... | 07/24/1990 |
| 4879193 | Light sensitive material for making lithographic printing plate therefrom Disclosed are a light sensitive material and a lithographic printing plate made therefrom by silver complex diffusion transfer process ree from peeling of layer during printing which comprises a polyester film support made hydrophilic by coating with an o... | 11/07/1989 |
| 4861698 | Photosensitive lithographic plate using no dampening water A photosensitive lithographic plate is suitable for use in making a water-less lithographic plate which does not require dampening water. The photosensitive lithographic plate has a primer layer containing a hardened gelatin, a photosensitive layer and a ... | 08/29/1989 |
| 4837135 | Electron beam recording film An electron beam recording film comprising a support bearing, in order, (A) a sputtered layer of indium-ion oxide, and (B) a gelatino silver halide emulsion layer, e.g., silver iodobromide, crosslinked with 2 to 10% by weight based on the weight of gelatin in the ... | 06/06/1989 |
| 4756994 | Photocurable resin composition having excellent adhesion to the surface of a substrate A photocurable composition comprising (a) 100 parts by weight of a resin having structural units derived from at least one alpha, beta-unsaturated ethylenically unsaturated monomer, (b) 10 to 300 parts by weight of a photopolymerizable monomer, (c) 0.1 to... | 07/12/1988 |
| 4741987 | Photopolymerizable composition including benzotriazole carboxylic acid The composition of this invention comprises: (a) a thermoplastic organic polymer, (b) a non-gaseous ethylenically unsaturated compound containing at least two terminal ethylenic groups capable of forming a polymer by photoinitiated addition polymerization, (c)... | 05/03/1988 |
| 4717642 | Process for improving adhesion between photographic layers A process for improving adhesion between photographic layers of a photographic element comprising a support having provided thereon at least (1) a first photographic layer comprising a high molecular weight compound having a functional group capable of reactin... | 01/05/1988 |
| 4698294 | Lamination of photopolymerizable film onto a substrate employing an intermediate nonphotosensitive liquid layer Lamination of a photopolymerizable film onto a substrate employs an intermediate nonphotosensitive liquid which is substantially all monomer.... | 10/06/1987 |
| 4640878 | Method of forming a pressure sensitive image transfer sheet and the product thereof There is described a photomechanical method for forming pressure sensitive transfer reproductions of color images, either single color or multicolor, upon a substrate involving the forming of a base coat protective layer on a substrate, applying one color... | 02/03/1987 |
| 4629679 | Tetrazole compound-containing photopolymerizable resin composition A photopolymerizable resin composition is described which comprises, (a) 40 to 85 wt. %, based on the composition, of a thermoplastic polymer binder, (b) 15 to 60 wt. %, based on the composition, of a cross-linkable monomer having at least one ethylenical... | 12/16/1986 |
| 4587203 | Wet process for developing styrene polymer resists for submicron lithography The invention is directed to a process for preparation of a negative resist configuration on a siliceous substrate. A negative resist polymer is bonded to the siliceous substrate using an intermediary interlayer of silane between the substrate and the resist ... | 05/06/1986 |
| 4562140 | Photosensitive material for use in diffusion transfer process with matting agents in underlayer Disclosed is a photosensitive material which comprises a support and at least an undercoating layer and a silver halide emulsion layer, said undercoating layer containing a matting agent having an average particle size larger than the thickness of the und... | 12/31/1985 |
| 4499174 | Hydrophilic layers adjacent a stripping layer for diffusion transfer assemblages Photographic assemblages and processes are described wherein a stripping layer is employed to enable an image-receiving layer to be separated from the rest of the assemblage after processing. Each side of the stripping layer has a hydrophilic layer immedi... | 02/12/1985 |
| 4497889 | Release compound in negative acting photopolymerizable element Improved release properties are obtained between a cover sheet and a supported negative acting radiation sensitive photopolymerizable composition by introduction into the composition a compound of the formula A--B, wherein A is substituted or unsubstitute... | 02/05/1985 |
| 4495273 | Color photographic elements with improved mechanical properties Silver halide photographic elements comprising a support on which there is spread a plurality of photosensitive layers of gelatin incorporating silver halides and containing coupling agents, and further being associatd with auxiliary gelatin layers tend t... | 01/22/1985 |
| 4429032 | Surface-treated vinyl chloride polymer material including an adhering hydrophilic layer The adherence of a hydrophilic layer containing a hydrophilic colloid binder upon the surface of a vinyl chloride polymer free of hydrophilic recurring units is improved by exposing the polymer surface to a corona discharge sufficient to satisfy a particu... | 01/31/1984 |
| 4330604 | Fabrication of holograms on plastic substrates An improved process is provided for attaching layers of hydrophilic, photosensitive materials onto hydrophobic plastic substrates, which comprises forming a layer of a polycrystalline, optically transparent, moisture barrier material on the substrate, fol... | 05/18/1982 |
| 4318970 | Process for fabricating photosensitive layers on plastic substrates An improved process is provided for attaching layers of hydrophilic, photosensitive materials onto hydrophobic plastic substrates, which comprises forming a layer of a glassy, optically transparent, polar, moisture barrier material on the substrate prior ... | 03/09/1982 |
| 4281060 | Heat-developable photosensitive materials A heat-developable photosensitive material comprising a support having coated thereon at least on sensitive layer comprising (a) a binder and at least one of (b) an organic silver salt, (c) a photocatalyst, and (d) a reducing agent wherein said heat-devel... | 07/28/1981 |