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...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.

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Class 508/223 - The heterocyclic compound reactant contains a three- or four-membered hetero ring (e.g., aziridine, epoxy compounds, oxetane, etc.)


Subclass of Class 508 - Solid anti-friction devices, materials therefor, lubricant or separant compositions for moving solid surfaces, and miscellaneous mineral oil compositions
Definition: Compositions wherein a three- or four-membered hetero ring
No. of patents: 44
Last issue date: 04/01/2008


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NumberTitleIssue Date
7351780Method for manufacturing high viscosity polyalphaolefins using ionic liquid catalysts
A method of continuously manufacturing a high viscosity polyalphaolefin product by introducing a monomer and an ionic liquid catalyst together into a reaction zone while simultaneously withdrawing from the reaction zone a reaction zone effluent that contains the hig...
04/01/2008
7341762Coating composition having improved release properties and the process for making the same
A protective coating composition and a method for coating a metal substrate are provided. The composition and method are particularly suitable for coating can ends. The coating composition includes a film-forming polymer that includes an epoxy-based resin, a lubrica...
03/11/2008
7250458Stable polymer dispersions and method for the production thereof
The present invention relates to a stable polymer dispersion comprising A) at least one dispersed polyolefin, B) at least one dispersing component, C) at least one ester and D) at least one ether comprising (oligo)...
07/31/2007
7001634Process for suppressing the foaming of an aqueous system
The present invention relates to a process for suppressing the foaming of an aqueous system which involves combining water and at least one defoamer composition which has a hydroxyl equivalent molecular weight of at least 4000 Da and a cloud point less than or equal...
02/21/2006
6972275Oil-in-oil emulsion lubricants for enhanced lubrication
Novel oil-in-oil emulsions and methods of lubrication using the same are provided. The lubricants are stable emulsions of carrier fluid and high viscosity fluid that display superior properties related to lubricating film thickness and reduced shear strength. ...
12/06/2005
6420320High molecular weight polyols, process for preparation and use thereof
The invention is a high molecular weight polyether polyol prepared by the reaction of one or more compounds having one or more active hydrogen compounds with one or more alkylene oxides in the presence of a catalyst comprising calcium having counterions o...
07/16/2002
6087307Polyether fluids miscible with non-polar hydrocarbon lubricants
Homogeneous lubricant blends are disclosed comprising polyether liquid lubricants miscible with synthetic hydrocarbon fluids or severely hydroprocessed basestock. The lubricants comprise SHF or hydroprocessed basestock and polyalkylene oxide polymer havin...
07/11/2000
5744429Mixed ethylene alpha olefin copolymer multifunctional viscosity modifiers useful in lube oil compositions
The present invention relates to novel multifunctional viscosity modifiers comprising a mixture of derivatized ethylene-alpha olefin copolymers, A and B. Said A copolymer comprising from about 30 to about 60 weight percent monomer units derived from ethyl...
04/28/1998
5614595Polymers based on conjugated dienes
Polymers Ia and Ib carrying functional groups and obtainable by A) 1. hydrogenation of the olefinic double bonds of a polymer IIa comprising a) from 20 to 100% by weight of a conjugated diene, b) from 0 to 80% by weight of an aromatic vinyl compound, and c) from 0 ...
03/25/1997
5565126Lubricating composition
A lubricating composition comprises a lubricating grease and a heat-curable resin selected from the group consisting of urea resins, malamine-formaldehyde resins, epoxy resins, furan resins, xylene resins, silicone resins and urethane resins. The lubricat...
10/15/1996
5520829Lubricating oil containing dispersant viscosity index improver
Lube oils of improved properties contain ethylene-propylene copolymer bearing moieties derived from the reaction product of allyl glycidyl ether and a heterocyclic amine such as N-(3-aminopropyl) morpholine....
05/28/1996
5506332Preparation of polyacetals, use thereof and novel polyacetals
A process for preparing polyacetals by copolymerization of glyoxylic esters with other copolymerizable monomers in the presence of anionic or cationic polymerization initiators, with or without the introduction of stable end groups and with or without hyd...
04/09/1996
5397486Lubricating oil compositions for railroad diesel engines
Disclosed are lubricating oil compositions for use in 2-cycle railroad diesel engines having silver surfaced engine parts, which composition comprises an effective amount of a silver wear inhibiting compound. A method for inhibiting wear of silver-surface...
03/14/1995
5370810Polyepoxide modified adducts or reactants and oleaginous compositions containing same PT-696
A material useful as a dispersant additive in oleaginous compositions selected from fuels and lubricating oils comprising the reaction products of: (i) at least one intermediate adduct comprised of the reaction products of (a) at least one polyepoxide, and (b)...
12/06/1994
5360560Universal lubricant based on a synthetic oil solution
A water-soluble, foam-inhibiting universal lubricant composition based on an aqueous self-emulsifying synthetic oil solution and an anti-foaming agent. The oil is an ethoxylated dimeric fatty acid, and the anti-foaming agent is made up of a Guerbet alcoho...
11/01/1994
5340487Dispersant adducts comprising alcohol adducts of dicarboxylic acid monoepoxy thiol reaction products
The present invention is directed to an oil-soluble lubricating oil additive comprising at least one adduct of (A) a polyolefin of 700 to 5,000 number average molecular weight substituted with carboxylic acid producing moieties (preferably acid or anhydri...
08/23/1994
5274102Epoxy functional copolymer of higher ଱-olefin and unsaturated dicarboxylic acid ester and derivatives thereof
Epoxy functional copolymers of a higher ଱-olefin, and an unsaturated dicarboxylic acid ester formed by copolymerization of olefin, acid ester and ethylenically unsaturated glycidyl compound can be used to form nitrogen, oxygen, phosphorus and/or sul...
12/28/1993
5141661Wear resistant lubricant additives made of ethylene/଱-olefin polymer grafted with perfluoro-substituents
Ethylene/଱-olefin polymers grafted with perfluoro-substituted, ethylenically-unsaturated epoxides and then reacted with perfluoro-substituted nucleophiles, provide enhanced wear resistance to lubricating oils....
08/25/1992
5120456Triazole/arylamine-modified sulfonates as multifunctional additives for lubricants
Reaction products of aryltriazoles or arylamines and arylsulfonic acids pre-reacted or formed in-situ in lubricants provide multifunctional antioxidant, antiwear and corrosion-inhibiting properties thereto....
06/09/1992
4973414Polyethers, process for their preparation and lubricants containing these polyethers
Monofunctional polyethers having hydroxyl groups contain as built-in terminal groups or monomers (a) 1 to 30% by weight of one or more C4 - to C24 -alkylmonophenols, (b) 1 to 30% by weight of one or more C8 - to C24 ...
11/27/1990
4857218Lubrication method and compositions for use therein
Lubricant compositions having good dilution viscosity characteristics and high viscosity/pressure coefficients can be produced using a connected branch copolymer having a core segment, non-crosslinked branched polymer segments connected to the core segmen...
08/15/1989
4842756Multifunctional viscosity index improver
Lubricating oils of improved oxidative stability, dispersancy, and viscosity index contain ethylene-propylene copolymer bearing allyl glycidyl ether or glycidyl methacrylate graft monomer--which has been functionalized with 2,5-dimethyl aniline or 2,6-dim...
06/27/1989
4839068Polysuccinate esters and lubricating compositions comprising same
Polyesters containing hydrocarbon substituted succinic groups, including capped polyesters, and having molecular weights between about 1000 and about 4000 are additives for mineral oil based lubricating oils. These polyesters impart friction reducing and ...
06/13/1989
4826613Lubricating oil containing dispersant viscosity index improver
Lubricating oil of improved dispersancy and viscosity index contains ethylene-propylene polymer bearing glycidyl methacrylate graft which as been functionalized with mercaptoacetic acid....
05/02/1989
4627929Stabilized lubricants based on polyethers
Stabilized lubricants based on polyethers containing diphenylamine derivatives of the formula ##STR1## in which R1 denotes hydrogen, a straight-chain or branched C4 to C12 -alkyl group, a straight-chain or branched C
12/09/1986
4626366Functional fluids and concentrates containing associative polyether thickeners and certain metal dialkyldithiophosphates
The invention relates to functional fluid concentrates and functional fluids which can be prepared by mixing the concentrates with water. The functional fluids can be used in hydraulic systems or as metalworking compositions to cool and lubricate surfaces...
12/02/1986
4588511Functional fluids and concentrates containing associative polyether thickeners and certain metal dialkyldithiophosphates
The invention relates to functional fluid concentrates and functional fluids which can be prepared by mixing the concentrates with water. The functional fluid concentrate comprises certain basic zinc salts as cloud point raising additives; a polyether non...
05/13/1986
4568474Polymeric particle acid neutralizers with reactive epoxy core for engine oils
This invention is directed to acid neutralizing additives for engine oils, which additives comprise polymeric particles bearing epoxide groups on the polymerized particle and a non-polar polymeric stabilizer attached thereto....
02/04/1986
4556498Internal lubricant which enables epoxy phenolic exterior coated TFS plate to be triple drawn and ironed
This disclosure includes a means by which a precoating for a metal plate can be made to withstand stresses imposed upon it and the plate during forming operations such as stretching and drawing by first adding a dry film lubricant to the coating. The lubr...
12/03/1985
4489194Carboxylic acylating agents substituted with olefin polymers of high/low molecular weight mono-olefins, derivatives thereof, and fuels and lubricants containing same
Hydrocarbyl substituted carboxylic acylating agents are made by reacting, optionally in the presence of chlorine or bromine, (A) one or more alpha-beta olefinically unsaturated carboxylic acid reagents containing 2 to about 20 carbon atoms, exclusive of t...
12/18/1984
4486573Carboxylic acylating agents substituted with olefin polymers of high molecular weight mono-olefins, derivatives thereof, and fuels and lubricants containing same
Hydrocarbyl substituted carboxylic acylating agents are made by reacting, optionally in the presence of chlorine or bromine, (A) one or more alpha-beta olefinically unsaturated carboxylic acid reagents containing 2 to about 20 carbon atoms, exclusive of t...
12/04/1984
4481123Polyethers, their preparation and their use as lubricants
The new polyethers obtainable by polymerization of an 1,2-epoxyalkane with 8 to 26 carbon atoms, and a tetrahydrofuran in the presence of a hydroxyl compound of the formula in which R1 denotes hydrogen, an alkyl radical having 1 to 24 carbon at...
11/06/1984
4481125Water-based hydraulic fluid
Water-based hydraulic fluid for use in industrial hydraulic systems comprising (1) a polyether-based thickener, (2) a lubricant modifier (3) a dispersant, (4) an EP additive, and (5) water. Preferably, the thickener is a polyether polyol capped with an al...
11/06/1984
4388202Lubricating oil composition and process for preparation thereof
A lubricating oil composition comprising a major proportion of a lubricating oil, and an oil-soluble graft copolymer, said graft copolymer being prepared by grafting a small amount of a grafting monomer selected from saturated esters of unsaturated monoca...
06/14/1983
4354949Hydraulic fluid, hydraulic equipment containing this fluid and a concentrate of this fluid
Hydraulic fluids consisting of oil in water emulsion comprising 90-99%w of water, non-ionic emulsifier and 0.5-5%w of a high viscosity lubricating oil having a kinematic viscosity of 40° C. of at least 160 cS....
10/19/1982
4299712Epoxide or episulfide polymer-based hot melt metal working lubricants
Metal working operations, especially drawing, are facilitated by applying to the metal a composition which provides lubricity thereto, which melts at about 30°-150° C., and which comprises principally a polymer of a monoepoxide or monoepisulfide contain...
11/10/1981
4256594Hot melt metal working lubricants containing phosphorus-containing compositions
Metal working operations, especially drawing, are facilitated by applying to the metal a composition which provides lubricity thereto, which melts between about 30° and about 150° C., and which contains a minor amount of a phosphorus-containing composit...
03/17/1981
4250047Lubricant compositions for synthetic fibers and method for lubricating synthetic fibers
Synthetic fibers are treated for the purpose of lubrication with a compound of the formula: ##STR1## wherein R1 is hydrogen or phenyl, R2 is an alkylene group having 1 to 3 carbon atoms, R3 is an alkylene group having...
02/10/1981
4216099Bridged phenol metal salt/halo carboxylic acid condensate additives for lubricants
Compositions made by reacting (I) a metal phenoxide salt of a bridged phenol of 2 to about 20 phenol groups and (II) a carboxylic acid reagent containing from one to about three carboxyl-based groups and a halogen-substituted hydrocarbon-based aliphatic o...
08/05/1980
4203855Phenoxide-halo carboxylic acid condensate additives for lubricants
Compositions made by reacting (I) a metal phenoxide substituted with at least one hydrocarbon-based group of at least about 30 carbon atoms with (II) a carboxylic acid reagent containing from one to about three carboxyl-based groups and a halogen-substitu...
05/20/1980
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