Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| H2233 | Catalysts which stabilize hydrofluorocarbon blowing agents in polyurethane foam compositions A composition comprising a polyisocyanate, a polyol, a hydrofluorocarbon blowing agent, optionally water, a surfactant, and at least one catalyst for the reaction of the polyisocyanate with the polyol and/or the reaction of the polyisocyanate with water, the catalys... | 11/03/2009 |
| 7078443 | Viscoelastic foam layer and composition A viscoelastic foam is provided having an amine-based polyol system to impart strength, recoverability and endurance to the foam, and an appropriately selected trifunctional non-amine-based polyol system to provide flexibility to the foam. The combination of amine-b... | 07/18/2006 |
| 6734220 | Fine cell, high density viscoelastic polyurethane foams Polyurethane foams formed at above atmospheric pressure conditions using methylene diisocyanate or a specific mixture of polyisocyanate and with a major portion of methylene diisocyanate (MDI) with a specific mixture of polyether and graft polyols produces high dens... | 05/11/2004 |
| 6716890 | Polyurethane foams with fine cell size Polyurethane foams formed using a specific mixture of polyether and graft polyols with toluene diisocyanate have fine cell size (over 70 pores per inch) and higher durability with IFD25 retention over 70% after 12,000 cycles of roll-shear. The foam-formin... | 04/06/2004 |
| 6706776 | Syntactic foams with improved water resistance, long pot life and short demolding times This invention relates to syntactic foams comprising the reaction product of a liquid diphenylmethane diisocyanate component, with an isocyanate-reactive component, a filler having a density of less than 1 g/cm 3, and at least one organo-metallic catalyst. This inve... | 03/16/2004 |
| 6653363 | Low energy-loss, high firmness, temperature sensitive polyurethane foams Foaming a polyurethane foam at above atmospheric pressure conditions using a mixture of polyisocyanate and a specific mixture of low molecular weight (high OH number) polyether and graft polyols produces viscoelastic foams with high firmness, low energy l... | 11/25/2003 |
| 6653361 | Flame retardant polyurethane composition and method of manufacture thereof A polyurethane foam or elastomer comprises an organic polyisocyanate component, an active hydrogen-containing component reactive with the polyisocyanate component, wherein the viscosity of this component is less than about 500 cP at room temperature, a ca... | 11/25/2003 |
| 6586486 | Preparation of low-density hydrophilic flexible polyurethane foams Low-density hydrophilic flexible polyurethane foams are prepared by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if required, further compounds (c) having hydrogen atoms reactive toward isocyanates, in t... | 07/01/2003 |
| 6576682 | Use of reactive amines for the preparation for polyurethane foams The invention relates to a process for preparing polyurethane foams (PUR foams) which uses reactive amines of the formula ##STR1## where n is 1 to 4, R1 and R2 are --(CH2 --CH2 --O)x H, --(CH2 -... | 06/10/2003 |
| 6458859 | Semiconductive silicone rubber composition and silicone rubber roll By blending acicular conductive titanium oxide and an antistatic agent having a metal ion-containing moiety in an organopolysiloxane having at least two aliphatic unsaturated groups, there is obtained a silicone rubber composition which is curable with an... | 10/01/2002 |
| 6420448 | Energy absorbing foams Polyurethane foams formed under vacuum (below atmospheric pressure) conditions using a specific mixture of polyisocyanate and with a major portion of methylene diisocyanate (MDI) and a specific mixture of polyether and graft polyols exhibit superb static ... | 07/16/2002 |
| 6403664 | Combination of metal salts of ricinoleic acid with reactive amines in producing polyurethane forms The invention relates to the combined use of metal salts of ricinoleic acid with reactive amines in the preparation of polyurethane foams (PUR foams) and of their solutions in aqueous or organic solvents in the preparation of polyurethane foams in combina... | 06/11/2002 |
| 6242555 | Light-stable elastomeric polyurethane mouldings and process for the production thereof A process for the production of micro-cellular or non-cellular, light-stable elastomeric, flexible or semi-flexible polyurethane moldings which are especially suited for window encapsulation applications from a reaction mixture by the reaction injection m... | 06/05/2001 |
| 6194475 | Use of metal salts of ricinoleic acid in producing polyurethane The invention relates to the use of metal salts of ricinoleic acid or solutions thereof in water or in organic solvents in producing polyurethane foams.... | 02/27/2001 |
| 6153659 | 3-{N-[2-(N',N'-dimethylamino ethoxy)ethyl]-N-methylamino}propionamide for the production of polyurethanes 3-{N-[2-(N',N'-dimethylamino ethoxy)ethyl]-N-methylamino}propionamide is a new compound which is useful as a catalyst in the production of polyurethane foams.... | 11/28/2000 |
| 6140381 | Delayed action catalysts for carpet backing and air frothed foam This invention relates to a process for the production of a polyurethane backing and air frothed foam on a substrate comprising the steps of a) mixing a polyisocyanate and a polyol blend in the presence of a catalyst to form a reaction mixture, b) applyin... | 10/31/2000 |
| 6020283 | Process for the production of delayed action tin catalysts The present invention relates to a novel process for the production of delayed action tin catalysts. This process comprises reacting a dialkyltin dihalide with an alkali metal sulfide, to yield the corresponding 2,2,4,4-tetrakis(alkyl)-1,3,2,4-dithia-stan... | 02/01/2000 |
| 6010565 | Foamed material for fireproofing and/or insulating This invention relates to a foamed material for fireproofing and/or insulating purposes, consisting of 30 to 90 parts by weight of a solution that contains 20 to 70 wt-% Al (H2 PO4)3 and 30 to 80 wt-% water, 5 to 55 parts ... | 01/04/2000 |
| 5844013 | Hydrophilic polyurethane gel foams, particularly for treating deep wounds, wound dressing based on hydrophilic polyurethane gel foams and method of manufacture Hydrophilic polyurethane gel foams are obtainable from a polyurethane gel defined in the description, from a water-absorbing material and from a non-aqueous foaming agent and can be used in medicine, in particular for the management of deep wounds and wou... | 12/01/1998 |
| 5840779 | Catalysts which stabilize hydrohalocarbon blowing agent in polyurethane foam formulations The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of catalysts which result in a decreased amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during the poly... | 11/24/1998 |
| 5798533 | Polyol compositions having good flow and water blown rigid polyurethane foams made thereby having good dimensional stability A polyol composition is provided which when reacted with and organic isocyanate, has good flow characteristics and makes an all water blown rigid polyurethane foam having good dimensional stability at low core densities of 1.1 pcf to 2.0 pcf. The polyol c... | 08/25/1998 |
| 5721285 | Thermal insulating foamed material and method of manufacturing the same The present invention provides a thermal insulating foamed material with excellent thermal insulating properties and a method of manufacturing the same. The method comprises the steps of: concurrently mixing and blowing a polyurethane material to produce ... | 02/24/1998 |
| 5688834 | Catalysts which stabilize hydrohalocarbon blowing agent in polyurethane foam formulations The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of catalysts which result in a decreased amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during the poly... | 11/18/1997 |
| 5681868 | Adherence of automotive body and trim parts A pressure sensitive adhesive consisting of a polyurethane foam is used for adhering decorative parts to automobiles and other vehicles. The adhesive is characterized by high tensile strength and elongation, excellent peel strength and good thermal and me... | 10/28/1997 |
| 5656677 | Method for preparing and applying a sprayable, light stable polyurethane A method for preparing a light stable polyurethane, sprayable by means of a spray pistol, wherein use is made of an active hydrogen containing compound, wherein the functional groups consist for at least 50% of an active CH2 OH, NH and/or NH | 08/12/1997 |
| 5646195 | Catalyst for polyurethane carpet backings and carpets prepared therewith Polyurethane foam backed textiles, particularly polyurethane backed carpets can be prepared using a formulation including a dialkyltin sulfide catalyst. Use of the dialkyltin sulfide catalyst allows for a delayed gellation without substantially increasing... | 07/08/1997 |
| 5633292 | Method for producing cold polyurethane foams The invention relates to a method for the production of high resilience polyurethane foams by reacting a mixture of highly reactive polyols, which usually have an average molecular weight of between about 4800 and 6500 g/mole and at least 70% primary hydr... | 05/27/1997 |
| 5599851 | Superfine microelemental biochemical mixture and foamed plastic products thereof This invention relates to a kind of superfine microelemental biochemical mixture and its foamed plastic products. The mixture contains titanium oxide, zirconia, silica, yttrium oxide, cerium oxide, tin dioxide, silver phosphate and other microelements, an... | 02/04/1997 |
| 5596021 | Crosslinkable polyester/isocyanate compositions suitable for preparing composite manufactured articles, in particular by means of injection processes, process for preparing them and their use The present invention relates to a crosslinkable polyester/isocyanate composition suitable for preparing composite manufactured articles endowed with high structural mechanical properties, by means of injection processes, comprising: A--a polyfunctional i... | 01/21/1997 |
| 5585412 | Process for preparing flexible CFC-free polyurethane foams using an encapsulated blowing agent The present invention relates to a process for producing a flexible polyurethane foam by reacting, at a reaction temperature within a temperature range of between about 70° F. and about 150° F., a reaction mixture comprised of a polyol, an organic isocy... | 12/17/1996 |
| 5514723 | Water-blown integral skin polyurethane foams and catalysts useful therein The present invention is directed to an integral skin foam prepared by reacting an isocyanate, an isocyanate reactive component and water as the only blowing agent and to a catalyst useful therein. The catalyst broadly comprises a diorganotin sulfide, a t... | 05/07/1996 |
| 5502150 | Linear HDI urethane prepolymers for rim application The present invention is directed to polyurethane moldings produced via the RIM process. These polyurethane moldings have excellent reactivity, demold properties (at a 30s demold), and good elongation and tear strength, and comprise the reaction product o... | 03/26/1996 |
| 5491174 | Process for preparation of polyurethanes utilizing novel catalysts Novel catalyst compositions comprising complexes of tin(IV) salts and amine compounds are used to prepare polyurethanes, polyureas, polycarbodiimides and polyisocyanurates. The complexes, which preferably employ primary amines, allow delay of gelation unt... | 02/13/1996 |
| 5395859 | Catalysts which stabilize hydrohalocarbon blowing agent in polyisocyanurate foam formulations during polymerization The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of catalysts which are capable of decreasing the amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during ... | 03/07/1995 |
| 5393569 | Water-permeable and fire-resistant film and a preparing method thereof A water-permeable and fire-resistant film and the preparing method thereof is disclosed. The water-permeable and fire-resistant film comprises polyurethane resin; a first fire-resistant agent; a second fire-resistant agent, an inorganic fire-resistant age... | 02/28/1995 |
| 5391583 | Flame-retardant poly (polyisocyanate-organic phosphorus) products Flame-retardant poly (polyisocyanate-organic phosphorus) products are produced by mixing and reacting an organic phosphorus containing compound and a polyisocyanate compound in the presence of a polyisocyante catalyst. No other blowing agent is necessary.... | 02/21/1995 |
| 5382602 | Flexible slabstock polyurethane foam formulation for a rapid-cool process Flexible, slabstock polyurethane foam compositions useful for a rapid-cool process are disclosed. The foams are produced in the presence of a tetravalent tin catalyst, preferably at a relatively low isocyanate index, and preferably with a polyol that cont... | 01/17/1995 |
| 5348985 | Process for making thermoplastic polyester foams A process for making thermoplastic polyester foams comprises the steps of subjecting macrocyclic polyester oligomer precursors to initiators and blowing agents at a constant operating temperature in order to produce foams which unexpectedly display low fo... | 09/20/1994 |
| 5328938 | On-site generation of polyurethane foam using an HCFC as a sole blowing agent The present invention relates to an improved process for producing, by means of a portable foaming apparatus having a static mixer, a polyurethane foam by reacting a reaction mixture comprised of a polyol, an organic isocyanate, a foaming/frothing agent, ... | 07/12/1994 |
| 5318996 | Rigid insulating polyurethane foams prepared from ternary blowing agent mixtures Polyurethane foams blown with a mixture of water, HCFC-22 or HCFC-141b, and a perfluorinated hydrocarbon having from 3 to 8 carbon atoms yields polyurethane and polyisocyanurate foams having exceptional physical properties, i.e., small and uniform cells, ... | 06/07/1994 |
