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5773563 |
Absorbable ε-caprolactone polymers
Crystane, low melting ε-Caprolactone polymers which undergo accelerated hydrolysis, and their use as lubricant coatings and/or as coatings containing bioactive agents, as carriers of viable cells,...
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5773554 |
Copolyesters based on 1,4-cyclohexanedimethanol having improved stability
This invention relates to a method of melt processing a copolyester having a moisture content of 0.02 weight % or more comprising: (a) one or more dicarboxylic acids, and (b) a glycol...
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5770653 |
Resin composition and manufacturing method thereof
A resin composition includes a dicyclopentenyl-group containing unsaturated polyester resin, a phenothiazine derivative (a) and an anion producing compound (b). On the other hand, resin composition...
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5766679 |
Chiral nematic polyesters
Chiral nematic polyesters comprise as alcohol component chiral diol structural units and as acid component dicarboxylic acid residues comprising mesogenic groups. The polyesters are particularly...
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5763098 |
Degradable aliphatic polyester formed products
Formed products such as foams, fabrics for industrial materials, filaments, nonwoven fabrics, composite materials and films which are degradable after use with ease in the natural environment are...
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5763531 |
Preparation of unsaturated polyester resins
Preparation of storage stable, polybutadiene containing, unsaturated polyester resins by heating a mixture containing an unsaturated hydroxyl terminated polybutadiene resin, a saturated anhydride...
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5760101 |
Derivatives of aromatic carboxylic acids from aromatic carboxylic acid anhydrides and hydroxy(meth) acrylates and formulations thereof
A condensation product of a hydroxy(meth)acrylate compound corresponding to the formula ##STR1## in which R 1 is hydrogen or methyl, A is a trivalent aliphatic residue with 3 to 15 C-atoms which...
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5759656 |
Method of forming multilayer preform and container with low crystallizing interior layer
A method of forming a multi-layer polyester preform and container, particularly suitable for refillable PET carbonated beverage bottles, having an interior layer of high copolymer polyester...
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5760159 |
Reflector as well as process and means for its production
In the reflector according to the invention based on unsaturated polyester resins the surface of the unworked piece has an average surface peak-to-valley height of less than 0.5 μm. It is produced...
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5756644 |
Polyesters
A process of producing a cyclic polyester oligomer mixture using a solid support system is described. A preferred cyclic polyester mixture contains at least one cyclic polyester oligomer containing...
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5756645 |
Multidimensional polyesters
The yield of fully substituted, multidimensional aromatic hubs in the condensation of hydroxyl and acid halide functionalities is improved by adding a thallium catalyst, such as thallium ethoxide...
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5756643 |
Polymide copolymers containing polycarbonate soft segments
A new copolymer composition comprises the hard segment of a polyimide and the soft segment of an oligomeric aliphatic polycarbonate or a mixture of an oligomeric aliphatic polycarbonate and an...
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5753377 |
Biaxially oriented polyester film for laminating metallic sheets
A biaxially oriented polyester film is suitable for laminating onto a metallic sheet so as to provide a laminate capable of being formed into a can. The polyester film comprises at least one of: ...
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5747605 |
Mixtures of polymers including a halogen-containing polymer and compatibilized with a grafted aliphatic polyester
The invention relates to mixtures of polymers including at least one halogen-containing polymer and compatibilized with a grafted aliphatic polyester. The compatibilizing agent may be, for example,...
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5747607 |
Sheet molding composition having controllable thickening
A sheet molding composition is provided which exhibits controllable thickening. The composition includes a low molecular weight polyester in which some of the chain ends have been endcapped with...
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5747633 |
Resin composition having improved mechanical properties and bio-disintegrating property and containers comprising thereof
A resin composition comprising a saturated polyester resin consisting chiefly of a hydroxyalkanoate unit, a heat-moldable hydroxyl group-containing resin having a vinyl alcohol unit, and an...
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5744570 |
Copolyether amide and water vapour permeable film made therefrom
Claimed is a copolyether amide having a melting point in the range of 180° to 260° C., incorporating at least 10 wt. % and not more than 30 wt. % of ethylene oxide groups, and composed of 30 to...
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5741882 |
Aliphatic polyester and a process for the preparation thereof
A process to prepare a high molecular weight aliphatic polyester is disclosed, where a catalyst is portionwise added, and a radical scavenger is also added. The aliphatic polyester obtained has a...
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5741586 |
Modified polyesters, preparation thereof and use thereof
Polyesters are disclosed containing at least 0.1 mol % of the structural repeat units of the formula I and optionally up to 99.9 mol % of the structural repeat units of the formula II --O--OC--Ar...
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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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5738835 |
Process for the purification of process gases by catalytic oxidation
Process for purification of essentially oxygen-free process gases by catalytic oxidation of the oxidizable, mainly organic impurities with the addition of a oxygen-containing gas, where...
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5736622 |
Collector intended to be used in deinking of waste paper according to the flotation process
A collector that is intended to be used at deinking of waste paper according to the flotation process. The collector includes a polyester obtained through reaction between polyalkylene glycol, di...
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5736581 |
Polyglycerol polyricinoleates
Disclosed are novel polyglycerine polyricinoleates as emulsifiers obtained by the esterification of polyricinoleic acid with a natural condensation rate of from 2 to 10 with a polyglycerine mixture...
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5736621 |
Process for the preparation of polyesters and copolyesters, the products prepared by this process and their use
A process is described for the preparation of polyesters by polycondensation of dicarboxylic acid-diol precondensates (oligomers) at elevated temperature in a liquid heat transfer medium in the...
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5733951 |
Poly(propylene fumarate)
A novel pathway for the synthesis of poly(propylene fumarate) includes first producing bis-hydroxypropyl fumarate and then its transesterification into poly(propylene fumarate). This synthetic...
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5731380 |
Elastomeric compositions
An elastomeric composition comprising: (A) a polyester elastomer; (B) a thermoplastic polyurethane elastomer; and (C) a multiphase composite interpolymer comprising an elastomeric first...
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5731389 |
Blends of polyesters and polyesteramides, optionally with polycarbonates
Disclosed are blends of polyesteramides and polyester resins, optionally with polycarbonates, as well as methods for preparing said blends thereof. Preferred polyesteramides are those comprising...
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5725841 |
Aerosol formulation containing an ester-, amide-, or mercaptoester-derived dispersing aid
A medicinal aerosol formulation containing a particulate drug and a dispersing aid derived from a hydroxyacid, a mercapto acid, or an amino acid.
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5726277 |
Adhesive compositions from phthalate polymers and the preparation thereof
An adhesive or coating composition comprises a reaction product of terephthalate polymer and mixture of glycols in the presence of a glycolysis catalyst. The reaction product is further reacted...
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5726283 |
Conductive polyester sheet
A conductive polyester sheet having three layers, comprising one substrate layer and two surface layers, laminated together by co-extrusion is provided. All the three layers are made from polyester...
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5721336 |
Lubricant and release agent for rubber
A lubricant and release agent for rubber is made from a polyester of a polyethylene glycol or a mixture of polyethylene glycols with an average of 3 to 20 ethylene oxide units per molecule and a...
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5721076 |
Color filters and materials and resins therefor
This invention relates to alkali-developable photosensitive or thermosetting resin compositions obtained by mixing (A) polymerizable unsaturated compounds having main structural units represented...
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5719256 |
Process for preparing polycondensation polymer compound
The invention provides a novel preparation process of a polycondensation type polymer, an excellent polymer which is represented by lactic acid and the preparation process of the polymer, a...
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5714553 |
Apparatus for the preparation of polyester resin
Apparatus for preparing a polyester resin by polymerizing a monomer produced by transesterifying a dicarboxylic acid component with a diol component while removing the vapor containing diols and...
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5714569 |
Aliphatic polyester resin and method for producing same
An aliphatic polyester resin having a λ value representing the magnitude of non-linearity of elongational viscosity of 1.5 to 8.0, said λ value being defined by the following formula (1): λ=λ...
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5709916 |
Polybutylene terephthalate having low carboxyl group concentration and loose tube for optical fiber comprising the same
A loose tube for an optical fiber comprising a polybutylene terephthalate. The polybutylene terephthalate has a terminal carboxyl group concentration of 10 eq./10 6 gpolymer or less and an...
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5710237 |
Liquid crystalline polyester resin
Liquid crystalline polyesters made from hydroquinone, terephthalic acid, 2,6-naphthalene dicarboxylic acid and 4-hydroxybenzoic acid, and having a selected composition range, have melting points of...
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5708124 |
Process for the solid state polycondensation of polyester resins
Process for the solid state polycondensation of polyester resins, where an inert gas is circulating in a moving bed of polymer at a temperature between 180° and 230° C., characterized by the fact...
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5708122 |
Liquid crystalline poly(ester-imides)
Poly(ester-imides) containing t-butylhydroquinone and trimellitic anhydride as part of the repeat units, as well as other monomers, are useful as molding resins. The polymers have a high glass...
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5703179 |
Method for producing polyesters
Method for producing polyesters by measuring the content of at least one of water, glycol and its ester-forming derivative in the distillate to be recycled, determining the amounts of the raw...
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5700856 |
Peroxide-generating composition for use with unsaturated polyester resins and method of use
A peroxide-generating composition for use in curing an unsaturated polyester resin and to the cured unsaturated polyester resin composition so prepared, particularly unsaturated polyester resin...
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5698213 |
Hydrogels of absorbable polyoxaesters
The present invention describes a new crossslinkable and crosslinked aliphatic polyoxaesters and blends thereof that may be used to produce hydrogels, surgical devices such as sutures, sutures with...
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5698331 |
Hygroscopic polyester copolymer, and a hygroscopic fiber made therefrom
The present specification discloses a hygroscopic polyester copolymer with a hydrophilic compound copolymerized, containing a cross-linking agent and controlled in moisture absorbing and releasing...
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5693321 |
Polymers containing diester units
The present invention relates to the process for the preparation of a biodegradable polymer comprising diester units of the formula (III) -- (O)--CO--O--C(R 1 R 2 )--O--CO--(O)--R 3 !--; where...
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5691053 |
Coating composition with thermally-influenced color
A coating material and coating process for color coating articles, such as motor vehicle bodies, and coated articles produced therewith. The coating contains a paint vehicle composed of at least...
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5691060 |
Utilization of a transacylation reaction between an esterified polysaccharide and a polyaminated or polyhydroxylated substance for fabricating microparticles, microparticles thus obtained, methods and compositions containing them
The invention relates to microparticles, particularly microcapsules and their fabrication method. Said microparticles, and particularly said microcapsules, are characterized in that they have a...
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5688586 |
Poly(ethylene oxalate), product formed of molded therefrom and production process of poly(ethylene oxalate)
The invention provides poly(ethylene oxalate) containing recurring units represented by the following formula (1): ##STR1## in a proportion of at least 60 basal mol %, wherein (a) the solution...
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5686555 |
Absorbents for acids and lyes
The present invention relates to absorbents for aqueous acids or lyes comprising cross-linked, polycationic homopolymers and topolymers of quaternized, monoethylenically unsaturated carboxylic acid...
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5686556 |
Process for the preparation of an α-amino ω-ester monoamide and process for the manufacture of a polyamide
Process for producing α-amino ω-ester monoamides such as H 2 N--(CH 2 ) 6 --NH--CO--(CH 2 ) 4 --CO--OCH 3 by reacting a diacid with a diamide at a diamine/diester molar ratio of 0.8 and 1.2...
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5686553 |
Copolyesters and molded articles comprising the same
The invention provides polyesters of terephthalic acid units and ethylene glycol units, having excellent melt moldability. The invention also provides molded articles having excellent transparency,...
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