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| Number | Title | Issue Date |
| 6010782 | Thin adhesive sheet for working semiconductor wafers A thin adhesive sheet for working semiconductor wafers is described, comprising a light-permeable support and a pressure-sensitive adhesive layer on the support, wherein the adhesive layer is a composition comprising 100 parts by weight of a base polymer,... | 01/04/2000 |
| 5714029 | Process for working a semiconductor wafer A thin adhesive sheet for working semiconductor wafers is described, comprising a light-permeable support and a pressure-sensitive adhesive layer on the support, wherein the adhesive layer is a composition comprising 100 parts by weight of a base polymer,... | 02/03/1998 |
| 5176916 | Medical adhesives A medical adhesive comprising a plaster layer containing the following ingredients, characterized in that the ingredient 2 is incorporated in a larger amount than the ingredient 5 and in an amount not less than 25% by weight relative to the total amount o... | 01/05/1993 |
| 5089071 | Process for producing a multilayered ceramic structure using an adhesive film An adhesive film comprising a ceramic powder and an adhesive composition having pressure-sensitive properties at room temperature (20° C.), and a process for producing a multilayered ceramic structure, such as multilayered ceramic substrates, laminated c... | 02/18/1992 |
| 5059628 | Medical composition for percutaneous administration A medical composition for external use comprising a proline ester represented by formula (I): ##STR1## wherein R1 and R2 are as defined in the specification, or a prolinol ester represented by formula (II): ##STR2## wh... | 10/22/1991 |
| 4963494 | Enzyme immobilization in an anisotropic ultrafiltration membrane An enzyme immobilized membrane comprising an anisotropic ultrafiltration membrane having a porous layer and a dense layer, and an enzyme immobilized therein is disclosed. The porous layer of the ultrafiltration membrane retains a water-soluble polymer hav... | 10/16/1990 |
| 4962043 | Simplified detection implement A simplified detection implement for use in the biological or chemical tests such as medical, pharmaceutical, microbiological, enzymological or analytical tests comprising an adhesive sheet (1) having an adhesion material layer (4), the adhesion sheet (1)... | 10/09/1990 |
| 4954343 | Dermal pharmaceutical preparations A dermal pharmaceutical preparation comprising a soft support having provided thereon a pressure-sensitive adhesive layer containing a pressure-sensitive adhesive and a drug, wherein said pressure-sensitive adhesive is a copolymer comprising a (meth)acryl... | 09/04/1990 |
| 4935175 | Mold cleaning composition, sheet for cleaning mold, and method for cleaning mold using said cleaning sheet A mold-cleaning composition and sheet comprising an uncured rubber composition comprising an uncured rubber and a curing agent, and at least one removal aid selected from imidazoles and imidazolines, and a method for cleaning a mold using the mold-cleanin... | 06/19/1990 |
| 4921703 | Vermin exterminating element and vermin exterminating method using it A vermin exterminating element comprising a culture carrier having culture medium components containing vermin infectious microorganisms and/or the spores of the vermin infectious microorganisms cultivated therein, and a vermin exterminating method using ... | 05/01/1990 |
| 4916009 | Flexible printing base A flexible printing base comprising a metal foil having formed thereon a polyimide layer is disclosed, wherein said metal foil has a centerline average roughness of not more than 0.7 μm, and said polyimide mainly comprises a repeating unit represented by... | 04/10/1990 |
| 4903119 | Semi-conductor device A semi-conductor device in which a semi-conductor element is sealed with a molding resin is disclosed. In the device, adhesion between a semi-conductor chip and the molding resin is achieved mainly by oxygen-crosslinking between silicon in the semi-conduc... | 02/20/1990 |
| 4893658 | FRP pipe with threaded ends An FRP pipe having threaded ends at both ends, such as casing, tubing, and coupling, is disclosed, which is characterized in that metal plating is formed on the surface of at least one of the threaded ends.... | 01/16/1990 |
| 4880895 | Polyimide film-forming polyamide acid solution A polyamide acid solution is disclosed, comprising a polyamide acid comprising as main components at least one recurring unit selected from the recurring units of the formulae (I) to (IV) and a recurring unit of formula (V), dissolved in an organic solven... | 11/14/1989 |
| 4880416 | Dermal bandage and dermal preparation A dermal bandage comprising a film-like adhesive material comprising at least one of polycarboxylic acids and polycarboxylic acid anhydrides, and a vinyl accetate polymer, and a dermal preparation comprising a film-like adhesive material containing drug, ... | 11/14/1989 |
| 4876330 | Colorless transparent polyimide shaped article and process for producing the same A colorless transparent polyimide shaped article having as a main component at least one recurring unit selected from the recurring units of the formulae (I) to (IX). It is useful, for example, as an oriented film in liquid crystal display devices. The po... | 10/24/1989 |
| 4874834 | Colorless transparent polyimide shaped article and process for producing the same A colorless transparent polyimide shaped article having as a main component at least one recurring unit selected from the recurring units of the formulae (I) to (III), which is useful, for example, as an oriented film in liquid crystal display devices. Th... | 10/17/1989 |
| 4869979 | Conducting organic polymer battery A conducting organic polymer battery is disclosed, which comprises a cathode comprising a conducting organic polymer doped with a polymer anion having a number of anionic groups in the molecule thereof, an anode comprising a metal having a redox potential... | 09/26/1989 |
| 4865677 | Sticking and cutoff device for adhering adhesive tape on thin articles A device for sticking adhesive tape to thin articles, such as semiconductor wafers, and trimming excess portions of said tape from the thin articles. A plurality of sticking rollers apply adhesive tape from a roll to each thin article, the tape having an ... | 09/12/1989 |
| 4864056 | Optically active hydroxy esters Methyl (2S,3S,4R)-(+)- and (2R,3R,4S)-(-)-3-hydroxy-2,4-dimethylheptanoates which are important intermediates for synthesis of invictolide, one component of a queen recognition pheromone of red imported fire ant.... | 09/05/1989 |
| 4863952 | Method of promoting percutaneous drug absorption with 2-pyrrolidin-2-one 5-carboxylic acids and esters thereof A composition for percutaneous drug administration which contains a compound of the general formula ##STR1## wherein R1 is a hydrogen atom or an alkyl group and R2 is a residue of aliphatic hydrocarbon. The composition is capabl... | 09/05/1989 |
| 4857192 | In phase corrugated plate membrane module support In a plate type membrane module in which a number of units, each comprising a membrane supporting plate with corrugated surfaces, and membranes formed on the corrugated surfaces, with permeate passageways between the membrane and the corrugated surfaces, ... | 08/15/1989 |
| 4844973 | Double-coated adhesive tape A double-coated adhesive tape comprising a tape support having provided on both surfaces thereof a pressure-sensitive adhesive layer is disclosed. The tape support used is a thin non-woven fabric having specific properties. The tape has a flexibility and ... | 07/04/1989 |
| 4835292 | Novel optically active alcohol (2R,3S,4R)-(+)- and (2S,3R,4S)-(-)-2,4-dimethyl-3-tetrahydropyranyloxy-1-heptanols which are important intermediates for synthesis of invictolide, one component of a queen recognition peromone of red imported fire ant.... | 05/30/1989 |
| 4821135 | Thermosetting resin stationary tape guides for magnetic tape cassettes A tape guide for magnetic tape cassettes, comprising a thermosetting resin composition, such as a polyester resin having a glass transition point of not lower than 100° C. containing an inorganic filler such as silicon powder and, optionally, a resin pow... | 04/11/1989 |
| 4818387 | Sulfonated polysulfone composite semipermeable membranes and process for producing the same A sulfonated polysulfone composite semipermeable membrane comprising a support membrane having laminated thereon in unity a semipermeable membrane composed of a sulfonated polysulfone formed by sulfonating a polysulfone composed of a recurring unit shown ... | 04/04/1989 |
| 4808340 | Process for preparing methyl 4-oxo-5-tetradecynoate A process for preparing methyl 4-oxo-5-tetradecynoate useful as an intermediate for synthesizing (R,Z)-5-dec-1-enyl-oxacyclopentan-2-one, which comprises reacting monomethyl succinate with an alkyl chlorocarbonate in the presence of a base to form an acid... | 02/28/1989 |
| 4797251 | Process for fixing metal powder molding at sintering A composition for fixing metal powder molding at sintering, which is used, in the case of disposing a metal powder molding formed by rolling a mixture of a metal powder and a synthetic resin-based binder on a metal base material and sintering the metal po... | 01/10/1989 |
| 4775438 | Process for peeling protective film off a thin article A process for peeling a protective film off a thin article such as a silicon wafer is proposed. The film is peeled by sticking an adhesive tape to the protective film on the article and pulling it away from the article. The protective film is peeled only ... | 10/04/1988 |
| 4769152 | Process for removing electrolyte A process for removing electrolyte comprising forming a compartment for dealing with a liquid by juxtaposed arrangement of a first barrier across or through which a cation can be exchanged for hydrogen ion and a second barrier across or through which an a... | 09/06/1988 |
| 4765974 | Preparation for percutaneous administration A clonidine preparation for percutaneous administration comprising a support having provided thereon an active ingredient-containing layer is disclosed. The active ingredient-containing layer contains an acrylic polymer having a glass transition temperatu... | 08/23/1988 |
| 4760102 | Porous polytetrafluoroethylene material A porous polytetrafluoroethylene material produced by forming a mixture of an adequate amount of a liquid lubricant and polytetrafluoroethylene fine powder having an average molecular weight of at least 6,000,000, an amorphous index larger than 0.1 and a ... | 07/26/1988 |
| 4759987 | Polyimide powder and process for producing the same A polyimide molding powder and a process for producing the same are disclosed, said powder comprising an aggregate of polyimide particles, in which the whole or a large portion of said powder comprises polyimide particles composed of a particulate filler ... | 07/26/1988 |
| 4755428 | Polyimide powder and method for producing the same A polyimide powder which can provide a molding having excellent both strength and heat resistance by heat-press molding, and a method for producing such polyimide powder are disclosed. The polyimide powder comprises spherical polyimide particles having a ... | 07/05/1988 |
| 4741948 | Composite release sheet material A composite release sheet material comprising a thermoplastic low-adhesive thin layer having a thickness of at least 5 μm and a synthetic resin film layer having a greater tensile strength than the thin layer and, if desired, an anchor coat layer therebe... | 05/03/1988 |
| 4740374 | Anti-inflammatory analgesic adhesive preparation An anti-inflammatory analgesic adhesive preparation is disclosed, comprising a flexible support having laminated thereon a pressure-sensitive adhesive material layer which contains a non-steroidal anti-inflammatory analgesic agent having salt form and an ... | 04/26/1988 |
| 4737325 | Composite semipermeable membrane and process for preparation thereof A composite semipermeable membrane and a process for preparation thereof are described, wherein said membrane comprises (1) a porous substrate, (2) an ultrathin film as a surface layer formed by polymerization by crosslinking of polyvinyl alcohol and an a... | 04/12/1988 |
| 4735990 | Aqueous resin emulsion An aqueous resin emulsion is disclosed. The emulsion is obtained by emulsion copolymerizing a monomer mixture comprising (a) an acrylic acid fluoroalkyl ester derivative, (b) an acrylic acid derivative, and (c) a polyfunctional monomer for internal cross-... | 04/05/1988 |
| 4734320 | Stretchable cloth adhesive tape A stretchable cloth adhesive tape useful for taping which comprises a tape support woven from warps and wefts and having stretchability in at least one direction and a pressure-sensitive adhesive layer formed on one surface of the support. The tape suppor... | 03/29/1988 |
| 4732642 | Apparatus for peeling protective film off a thin article Apparatus for peeling a protective film off a thin article such as a silicon wafer is disclosed. The film is peeled by sticking an adhesive tape to the protective film on the article and pulling it away from the article. The protective film is peeled by t... | 03/22/1988 |
