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30 results about "Methylene-lactone" patented technology
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Process for the preparation of alpha-methylenelactones and alpha-substituted hydrocarbylidene lactones
This invention pertains to a process for making alpha-methylenelactones and alpha-substituted hydrocarbylidene lactones. The present invention obtains high yields of alpha-methylene-gamma-butyrolactone by heating gamma-butyrolactone and formaldehyde in the presence of a base.
Owner:EI DU PONT DE NEMOURS & CO
Hair Care Composition
InactiveUS20090022681A1Improve rigidityReduced keratinous proteinsCosmetic preparationsHair removalMeth-Medicine
Owner:PROCTER & GAMBLE CO
Hair care composition
InactiveUS20080187506A1Improve rigidityReduced keratinous proteinsCosmetic preparationsHair cosmeticsMedicineMethylene-lactone
Hair care composition comprising from about 0.1% to about 20% of a sulfopropyl(meth)acrylate compound, an alpha methylene lactone, or a mixture thereof, wherein the sulfopropyl(meth)acrylate compound and the alpha methylene lactone each have a molecular weight of less than 500 grams / mole; and a dermatologically acceptable carrier.
Owner:THE PROCTER & GAMBLE COMPANY
Hair care composition
InactiveUS20080210253A1Increased style retentionIncreased durabilityCosmetic preparationsHair removalMedicineMethylene-lactone
Hair care composition comprising from about 0.1% to about 20% of a sulfopropyl(meth)acrylate compound, an alpha methylene lactone, or a mixture thereof, wherein the sulfopropyl(meth)acrylate compound and the alpha methylene lactone each have a molecular weight of less than 500 grams / mole; and a dermatologically acceptable carrier.
Owner:THE PROCTER & GAMBLE COMPANY
Process for the preparation of alpha-methylene lactones
Owner:EI DU PONT DE NEMOURS & CO
Alpha-methylene lactone homopolymer and copolymer compositions, sheets and articles made therefrom and the process for their manufacture
InactiveUS20030130414A1Increase profitReduce harmPlastic/resin/waxes insulatorsPolymer scienceMethylene-lactone
Compositions comprising homopolymers or copolymers containing repeat units derived from alpha-methylenelact(ones)(ams) such as alpha-methylenebutyrolactones and an inorganic filler such as alumina trihydrate are described. The decorative sheets and articles made from these compositions may have one or more of higher thermal resistance, higher hardness, higher scratch and mar resistance, faster polymerization rates, antimicrobial properties, lower coefficient of thermal expansion and, owing to a higher refractive index, a higher transparency.
Owner:EI DU PONT DE NEMOURS & CO
Supercritical fluid phase synthesis of methylene lactones using novel catalyst field of invention
InactiveUS20060025608A1High activityImprove productivityOrganic chemistryCatalyst activation/preparationProduction rateMethylene-lactone
Process for converting certain lactones to their alpha-methylene substituted forms that not only exhibits high initial activity (conversion), but also provides high reactor productivity (mass of product per mass of catalyst per unit of time) and sustained maintenance of a high level of activity and productivity with time on stream.
Owner:EI DU PONT DE NEMOURS & CO
Process for the preparation of a-methylenelactones and a-substituted hydrocarbylidene lactones
This invention pertains to a process for making alpha-methylenelactones and alpha-substituted hydrocarbylidene lactones. More specifically, the present invention obtains high yields of alpha-methylene-gamma-butyrolactone by heating gamma-butyrolactone and diethyl oxalate in the presence of a base. The second step comprises treatment of the alpha-oxalyl enolate salt with formaldehyde to afford the alpha-methylene-gamma-butyrolactone.
Owner:EI DU PONT DE NEMOURS & CO
Blends of poly[alpha-methylenelact(one)(am] homo- and copolymers
![Blends of poly[alpha-methylenelact(one)(am] homo- and copolymers](https://images-eureka.patsnap.com/patent_img/a8d4a9a5-9a4d-4317-a663-172b2d7c1525/US06723790-20040420-C00001.png "Blends of poly[alpha-methylenelact(one)(am] homo- and copolymers")
![Blends of poly[alpha-methylenelact(one)(am] homo- and copolymers](https://images-eureka.patsnap.com/patent_img/a8d4a9a5-9a4d-4317-a663-172b2d7c1525/US06723790-20040420-C00002.png "Blends of poly[alpha-methylenelact(one)(am] homo- and copolymers")
![Blends of poly[alpha-methylenelact(one)(am] homo- and copolymers](https://images-eureka.patsnap.com/patent_img/a8d4a9a5-9a4d-4317-a663-172b2d7c1525/US06723790-20040420-C00003.png "Blends of poly[alpha-methylenelact(one)(am] homo- and copolymers")
Owner:EI DU PONT DE NEMOURS & CO
Coating compositions containing substituted and unsubstituted exomethylene lactone or lactam monomers
InactiveUS6642346B2High hardnessImprove scratch resistancePolyurea/polyurethane coatingsPolyamide coatingsMethylene-lactoneAcrylic polymer
Owner:EI DU PONT DE NEMOURS & CO
Blends of poly[alpha-methylenelact(one)(am] homo- and copolymers
Polymers containing alpha-methylenelact(ones)(ams) such as alpha-methylenebutyrolactones are useful in blends with other polymers. For examples such polymers which have reactive groups are toughened by mixing with a rubbery material which has complimentary reactive groups, or polymers containing repeat units derived from alpha-methylenelact(ones)(ams) are toughened by mixing with polymeric core-shell particles having an elastomeric core and a specified thermoplastic shell. The properties of thermoplastics are also improved by blending with alpha-methylenelact(ones)(ams) such as alpha-methylenebutyrolactones containing (co)polymers.
![Blends of poly[alpha-methylenelact(one)(am] homo- and copolymers](https://images-eureka.patsnap.com/patent_img/139e5ade-c5dd-42d2-9ef0-853a1d517b47/US20020028881A1-20020307-C00001.png "Blends of poly[alpha-methylenelact(one)(am] homo- and copolymers")
![Blends of poly[alpha-methylenelact(one)(am] homo- and copolymers](https://images-eureka.patsnap.com/patent_img/139e5ade-c5dd-42d2-9ef0-853a1d517b47/US20020028881A1-20020307-C00002.png "Blends of poly[alpha-methylenelact(one)(am] homo- and copolymers")
![Blends of poly[alpha-methylenelact(one)(am] homo- and copolymers](https://images-eureka.patsnap.com/patent_img/139e5ade-c5dd-42d2-9ef0-853a1d517b47/US20020028881A1-20020307-C00003.png "Blends of poly[alpha-methylenelact(one)(am] homo- and copolymers")
Owner:EI DU PONT DE NEMOURS & CO
Gas phase synthesis of methylene lactones using novel grafted catalyst
InactiveUS20060025611A1High activityOrganic chemistryCatalyst activation/preparationGas phaseMethylene-lactone
Owner:EI DU PONT DE NEMOURS & CO
Process for the preparation of a-methylenelactones and a-substituted hydrocarbylidene lactones
Owner:EI DU PONT DE NEMOURS & CO
Liquid phase synthesis of methylene lactones using novel grafted catalyst
InactiveUS20060025607A1Increase conversionsHigh selectivityOrganic chemistryMethylene-lactoneLactone formation
Owner:EI DU PONT DE NEMOURS & CO
Supercritical fluid phase synthesis of methylene lactones using novel grafted catalyst
InactiveUS20060025605A1High activityOrganic chemistryBulk chemical productionFluid phaseMethylene-lactone
Process for converting certain lactones to their alpha-methylene substituted forms in a supercritical or near-critical fluid phase reaction using a novel grafted catalyst that not only exhibits high initial activity (conversion), but also maintains a high level of activity with time on stream.
Owner:EI DU PONT DE NEMOURS & CO
Gas phase synthesis of methylene lactones using oxinitride catalyst
InactiveUS20060025606A1Good hydrothermal stabilityEnhanced interactionOrganic chemistryCatalyst activation/preparationMethylene-lactoneGas phase
Owner:EI DU PONT DE NEMOURS & CO
Graft copolymers of methylene lactones and process for emulsion polymerization of methylene lactones
This invention discloses resilient, acrylic graft polymers comprising α-methylene lact(one)(am) monomers such as α-methylene-γ-butyrolactone, and blends of such polymers with thermoplastic matrix resins.This invention also discloses hard, non-resilient, acrylic graft polymers comprising α-methylene lact(one)(am) monomers such as α-methylene-γ-butyrolactone, and to blends of such polymers with thermoplastic matrix resins.This invention further discloses a general process for emulsion polymerization of α-methylene lact(one)(am) monomers such as α-methylene-γ-butyrolactone and its copolymers.
Owner:EI DU PONT DE NEMOURS & CO
Gas phase synthesis of methylene lactones using catalysts derived from hydrotalcite precursors
InactiveUS20060084818A1Good hydrothermal stabilityEnhanced interactionOrganic chemistryCatalyst activation/preparationRubidiumGas phase
Process for converting certain lactones to their alpha-methylene substituted forms using (i) a catalyst derived from a hydrotalcite or (ii) a composite catalyst comprising the hydrotalcite-derived catalyst into which at least one of lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium, barium has been incorporated.
Owner:EI DU PONT DE NEMOURS & CO
Supercritical fluid phase synthesis of methylene lactones using catalysts derived from hydrotalcites
InactiveUS20070073067A1Good hydrothermal stabilityOrganic chemistryBulk chemical productionMethylene-lactoneHydrotalcite
Supercritical fluid phase process for converting certain lactones to their alpha-methylene substituted forms using a catalyst made from a thermally decomposed hydrotalcite.
Owner:EI DU PONT DE NEMOURS & CO
Coating compositions containing substituted and unsubstituted exomethylene lactone or lactam monomers
InactiveUS20020010312A1High hardnessImprove scratch resistancePolyurea/polyurethane coatingsPolyamide coatingsMethylene-lactoneAcrylic polymer
This invention is directed to a coating composition used for original equipment manufacturing or refinishing uses in the automotive industry, which coating composition utilizes an acrylic polymer which contains substituted or unsubstituted exomethylene lactones or lactams as a comonomer.
Owner:EI DU PONT DE NEMOURS & CO
Supercritical fluid phase synthesis of methylene lactones using oxynitride catalyst
InactiveUS7153981B2Enhanced interactionGood hydrothermal stabilityOrganic chemistryCatalyst activation/preparationRubidiumMethylene-lactone
Owner:EI DU PONT DE NEMOURS & CO
Gas phase synthesis of methylene lactones using oxynitride catalyst
InactiveUS7151185B2Enhanced interactionGood hydrothermal stabilityOrganic chemistryCatalyst activation/preparationLithiumRubidium
Owner:EI DU PONT DE NEMOURS & CO
Supercritical fluid phase synthesis of methylene lactones using novel grafted catalyst
InactiveUS7166727B2High activityOrganic chemistryBulk chemical productionFluid phaseMethylene-lactone
Owner:EI DU PONT DE NEMOURS & CO
Gas phase synthesis of methylene lactones using catalysts derived from hydrotalcite precursors
InactiveUS7348442B2Good hydrothermal stabilityEnhanced interactionOrganic chemistryCatalyst activation/preparationLithiumMethylene-lactone
Owner:EI DU PONT DE NEMOURS & CO
Supercritical fluid phase synthesis of methylene lactones using novel catalyst field of invention
InactiveUS7164032B2High activityImprove productivityOrganic chemistryCatalyst activation/preparationProduction rateMethylene-lactone
Owner:EI DU PONT DE NEMOURS & CO
Blends of poly[alpha-methylenelact(one)(am)] homo-and copolymers
Polymers containing α-methylenelact(ones)(ams) such as α-methylenebutyrolactones are useful in blends with other polymers. For examples such polymers which have reactive groups are toughened by mixing with a rubbery material which has complimentary reactive groups, or polymers containing repeat units derived from α-methylenelact(ones)(ams) are toughened by mixing with polymeric core-shell particles having an elastomeric core and a specified thermoplastic shell. The properties of thermoplastics are also improved by blending with α-methylenelact(ones)(ams) such as α-methylenebutyrolactones containing (co)polymers.
![Blends of poly[alpha-methylenelact(one)(am)] homo-and copolymers](https://images-eureka.patsnap.com/patent_img/e7f4162c-b140-415d-bade-c34b2150dbac/US20050101731A1-20050512-C00001.png "Blends of poly[alpha-methylenelact(one)(am)] homo-and copolymers")
![Blends of poly[alpha-methylenelact(one)(am)] homo-and copolymers](https://images-eureka.patsnap.com/patent_img/e7f4162c-b140-415d-bade-c34b2150dbac/US20050101731A1-20050512-C00002.png "Blends of poly[alpha-methylenelact(one)(am)] homo-and copolymers")
![Blends of poly[alpha-methylenelact(one)(am)] homo-and copolymers](https://images-eureka.patsnap.com/patent_img/e7f4162c-b140-415d-bade-c34b2150dbac/US20050101731A1-20050512-C00003.png "Blends of poly[alpha-methylenelact(one)(am)] homo-and copolymers")
Owner:EI DU PONT DE NEMOURS & CO
Production Method of a-Methylene Lactone
The present invention relates to a production method of α-methylene lactone which comprises the following steps: (A) a step of producing an enolate intermediate by making lactone react with alkyl formate under the presence of an alkoxide base; and (B) making the enolate intermediate react with paraformaldehyde. The production method of the present invention is capable of reducing the process time, improving yield, and minimizing the contamination of a reactor.
Owner:CHEIL IND INC
Hair Care Composition
InactiveUS20140356305A1Improve rigidityReduced keratinous proteinsCosmetic preparationsHair removalDERMATOLOGY/SKINMeth-
Owner:PROCTER & GAMBLE CO
Method for preparing alpha-metylene lactone
Owner:CHEIL IND INC
Resist composition comprising photosensitive polymer having lactone in its backbone
InactiveUS7045267B2Low costImproved dry etching resistanceOrganic chemistryPlastic/resin/waxes insulatorsResistMethylene-lactone
This invention is directed to a coating composition used for original equipment manufacturing or refinishing uses in the automotive industry, which coating composition utilizes an acrylic polymer which contains substituted or unsubstituted exomethylene lactones or lactams as a comonomer.
Owner:SAMSUNG ELECTRONICS CO LTD
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