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7527809 |
Polyhydroxyalkanoate-containing magnetic structure, and manufacturing method and use thereof
A structure containing polyhydroxyalkanoate and a magnetic substance includes an external phase part containing polyhydroxyalkanoate and an internal phase part contained in the external phase part,...
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RE40571 |
Catalyst for polyester production, process for producing polyester using the catalyst, polyester obtained by the process, and uses of the polyester
The present invention provides a catalyst for polyester production capable of producing a polyester with high catalytic activity, a process for producing a polyester using the catalyst and a...
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7387863 |
Crystalline polyester for toner
The present invention relates to a crystalline polyester for toner, obtained by polycondensation of an alcohol component comprising 70% by mol or more of 1,6-hexanediol, and a carboxylic acid...
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7335719 |
Polyester based on poly(trimethylene terephthalate)
A polyester based on poly(trimethylene terephthalate) consisting essentially of trimethylene terephthalate repeating units, comprising at least one kind of compound selected from the group...
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7317069 |
Aliphatic polyester and process for producing the same
An object of the present invention is to provide an aliphatic polyester which is produced as a high-molecular-weight one without using a chain extender such as an isocyanate compound or a carbonate...
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7205357 |
Polyester resin composition for toner
A polyester resin composition for a toner comprising a titanium compound in an amount of from 0.005 to 4% by weight, and an inorganic phosphorus compound in an amount of from 0.001 to 5% by weight;...
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7199212 |
Polymerization catalyst for polyesters, polyesters produced with the same and process for producing polyesters
A novel polymerization catalyst for polyesters, which does not contain any germanium or antimony compound as the main component; polyesters produced with the catalyst; and a process for producing...
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7144614 |
Polyester polymerization catalyst, polyester produced by using the same, and process for producing polyester
This invention provides a novel polymerization catalyst other than antimony compounds, polyester produced by using the same and a process for producing polyester. The polycondensation catalyst of...
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7129301 |
Method for preparing a biodegradable copolyester
A method for preparing a biodegradable copolyester includes: (a) optionally preparing an aromatic prepolymer by reacting a first aromatic dicarboxylic compound with a first aliphatic glycol; (b)...
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7129317 |
Slow-crystallizing polyester resins
The present invention relates to slow-crystallizing polyethylene terephthalate resins that possess a significantly higher heating crystallization exotherm peak temperature (T CH ) as compared with...
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7049390 |
Poly(1,3-propylene-co-1,4:3,6-dianhydro-D-sorbitol terephthalate) and manufacturing process
A melt polymerization process for the preparation of poly(1,3-propylene-co-isosorbide) terephthalate (3GIT), new 3GITs and products made from the 3GITs. The process comprises (a) providing a...
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7026035 |
Laminated film for optical use
There is provided a laminated film for optical use comprising a polyester film which has a lubricity layer containing globular particles in at least one side thereof, wherein the laminated film has...
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6998462 |
Polyester process
Disclosed is a process that comprises contacting, in the presence of an esterification or transesterification or polycondensation catalyst composition, a toner, and a phosphorus compound, a...
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6733873 |
Polyester film as support for dry film resist
A polyester film for dry film resists, which satisfies requirements for transparency, particularly transmittance of radiation having a wavelength around 365 nm, slipperiness, winding properties,...
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6706396 |
Processes for producing very low IV polyester resin
The present invention provides processes for producing certain very low inherent viscosity polyesters. Also provided are the low inherent viscosity polyesters in discrete particulate form, and...
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6657036 |
Polycondensation resins and polyaddition resins produced by heterogeneous catalysis
The invention relates to polycondensation resins which are prepared by polycondensation of compounds having a low molecular weight and separation of small molecules in the presence of at least one...
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6582818 |
Polyesters having a controlled melting point and fibers formed therefrom
The invention relates to fibers, particularly binder fibers, made from polyesters and the polyesters themselves. The polyesters are the product of a reaction between a glycol component and a...
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6509436 |
Oxygen scavenging condensation copolymers for bottles and packaging articles
Compositions for scavenging oxygen are disclosed. These compositions comprise condensation copolymers comprising predominantly polyester segments and an oxygen scavenging amount of polyolefin...
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6500915 |
Polyester resin and its production process
The present invention relates to a polyester resin produced by polymerizing a dicarboxylic acid component comprising mainly an aromatic dicarboxylic acid or its ester forming derivative, and a diol...
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6472500 |
Crystalline polyester resins and processes for their preparation
An improved process for the preparation of high molecular weight, linear polyester resins comprises reacting an aromatic dicarboxylic acid with an excess of an alkane diol under conditions...
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6437088 |
Process for producing polyester with coated titanium dioxide
A process for producing a polyester. The process comprises polymerizing a polymerization mixture comprising (i) a carbonyl compound or an oligomer of a carbonyl compound and (ii) a glycol, in the...
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6380348 |
Polyester polycondensation with lithium titanyl oxalate catalyst
This invention relates to a method for manufacturing polyesters, in particular, to using a lithium titanyl oxalate as the catalyst for such reaction to provide fast reactions with excellent color...
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6316584 |
Method for producing polyesters and copolyesters
For the production of polyesters and copolyesters, coprecipitates are used individually or in a mixture as polycondensation catalysts, the coprecipitates being prepared by simultaneous hydrolytic...
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6313235 |
Method for preparing polypropylene terephthalate/polyethylene terephtalate copolyester
The present invention provides a method for preparing polypropylene terephthalate/polyethylene terephthalate (PPT/PET) copolyester, which comprises a group of processes from (a) to (e). Process (a)...
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6291122 |
Polyesters
A branched polyester resin of the Formula ##STR1## wherein n and m represent randomly repeating segments, and the number of n and m segments in the polymer backbone are each of from about 10 to...
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6025309 |
Polymeric acetals of hydroxycarboxylic acids and their derivatives, and a process for their preparation
The present invention relates to polymeric acetals containing the recurring structural unit (I) ##STR1## where the substituents and numbers are as defined in the description. These polymeric...
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5993958 |
Method of manufacturing a polyester-series photographic support
There is disclosed a method of manufacturing a polyester-series photographic support, comprising the steps of: incorporating at least one anthraquinone-series dye into a polyester, which polyester...
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5872204 |
Poly(1,3-propylene therephthalate)
The present invention provides a novel poly(1,3-propylene terephthalate), which is prepared from reacting terephthalic acid and 1,3-propanediol in the presence of an effective catalytic amount of...
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5852164 |
Polyester, process for producing the same and molding product therefrom
A polyester comprises a dicarboxylic acid moiety comprising terephthalic acid or its ester forming derivative and a diol moiety comprising ethylene glycol and 1,4-cyclohexanedimethanol of 10 to 60...
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5851612 |
Container formed from copolyester composition, copolyester composition therefor and method of producing the same
A container formed from a copolyester composition which comprises a copolyester containing 80 to 95 mol % of terephthalic acid and 20 to 5 mol % of 2,6-naphthalenedicarboxylic acid as acid...
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5780151 |
Radiation crosslinkable branched polyester compositions which are water-dispersible and processes
Disclosed is a radiation crosslinkable water-dispersible adhesive composition that is useful in forming paper and plastic articles and other products that can be recycled through a process which...
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5739261 |
Preparation of oxysulfonylated polyesters
Oxysulfonylated polyesters, well suited for conversion into oriented composite polyester films, are prepared by polycondensing a lower alkyl diester of at least one aliphatic dicarboxylic acid and...
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5672676 |
Polyesteramides with high heat deflection temperatures
New polyesteramides having glass transition temperatures (Tg's) of up to 130° C. and heat deflection temperatures that are in the 100° C. to 110° C. range are disclosed. The new polyesteramides...
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5654380 |
Aliphatic polyester carbonate and process for producing the same
Provided are an aliphatic polyester carbonate having biodegradability and having a content of carbonate unit of at least 5 mol %, a weight-average molecular weight of at least 100,000, a melt...
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5623047 |
Catalytic compositions for the preparation of poly(ethylene terephthalate) with improved color
A catalyst composition for use in a polycondensation reaction for making poly(ethylene terephthalate) from terephthalic acid comprising: (a) an antimony salt catalyst present in a range from about...
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5608032 |
Catalytic compositions for the proparation of poly(ethylene terephthalate) with attenuated yellow color
A catalyst composition for use in a polycondensation reaction for making poly(ethylene terephthalate) from terephthalic acid comprising: (a) an antimony salt catalyst present in a range from about...
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5605764 |
Article containing a water-dispersible adhesive composition
Disclosed is a water-dissipatable or dispersible adhesive composition that is useful in forming paper articles and other products that can be recycled through repulping in both neutral and alkaline...
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5571888 |
Process for preparing flame-retardant phosphorus-containing unsaturated polyester
A process for preparing a flame-retardant phosphorus-containing unsaturated polyester resin blend, comprising the following steps: (a) reacting (1) a phosphorus-containing monomer having the...
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5571876 |
Article containing a water-dispersible adhesive blend composition
Disclosed is a water-dissipatable or dispersible adhesive composition that is useful in forming paper articles and other products that can be recycled through repulping in both neutral and alkaline...
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5543488 |
Water-dispersible adhesive composition and process
Disclosed is a water-dissipatable or dispersible adhesive composition that is useful in forming paper articles and other products that can be recycled through repulping in both neutral and alkaline...
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5517993 |
Copolymers and their use as contrast agents in magnetic resonance imaging and in other applications
Novel compounds having use as contrast agents in magnetic resonance imaging, as well as other uses, are described. The compounds are comprised of a copolymer which comprises at least two of a first...
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5470941 |
Thermoplastic biodegradable resins and a process of preparation thereof
A thermoplastic biodegradable resin having a number average molecular weight of 25,000-45,000, which is prepared by polycondensing one or a plurality of dicarboxylic acids represented by formula...
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5423432 |
Water-dissipatable polyesters and amides containing near infrared fluorescent compounds copolymerized therein
Provided are water-dissipatable, sulfo-containing polyesters and polyester-amides having copolymerized therein thermally stable near infrared flourophoric compounds. The polymers are useful in...
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5417908 |
Process for the preparation of polyester, a polyester and its use
Process for making a polyester having polyethylene terephthalate units including transesterifying a terephthalic acid ester with a glycol using a manganese salt as catalyst and then subjecting the...
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5407657 |
Hybrid magnetic resonance contrast agents
Novel MRI contrast agents that comprise one or more metal-ion chelates in juxtaposition with one or more free-radical nitroxide compounds in a polymeric or oligomeric molecule. Both the chelate...
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5405935 |
Non-volatile solvent replacement
A non-volatile compound useful as a solvent and a method of manufacturing the compound. The compound is formed from heating a combination of a lactide and a drying oil which has conjugated double...
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5385773 |
Copolyester of cyclohexanenedimethanol and process for producing such polyester
Disclosed is a process for producing copolyesters having repeat units from a dicarboxylic acid component comprising at least 90 mol % terephthalic acid and a glycol component comprising about 10-95...
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5382474 |
Method for producing polyethylene terephthalate fibers with reduced flammability
Disclosed is a process for producing polyethylene terephthalate fibers with reduced flammability which comprises the following steps: (a) condensating terephthalic acid and ethylene glycol in a...
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5382650 |
Catalysts for polyester production
Novel catalysts for polyester production by esterification and/or transesterification are MoS 2 or WS 2 which have been intercalated by alkali metals cations, especially lithium cations, and then...
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5378797 |
Process for preparing aliphatic polyesters
Aliphatic polyesters are produced by the acylative ether cleavage of aliphatic monomers having at least one arylmethoxy group and at least one hydrocarbyl group. Alternatively, monomeric systems of...
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