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8153699 |
Self-priming surfacing composition for finished surfaces
A surfacing composition made of recycled paint, which requires no priming, has a non-reflective “flat” appearance, and is partially composed of dried paint. The composition provides a useful app...
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8110609 |
Copolyetheresters derived from polyethylene terephthalate
The invention relates to a composition comprising a modified, random copolyetherester containing a modified, random polytrimethylene terephthalate copolymer block that is derived from a...
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8030364 |
Polyols and polyurethanes, polyurethaneforms using the same
The present invention relates to a preparing method of polyols, polyurethane and polyurethane foams using the same. Polyester, polyamide and polyurethane are depolymerized with the polymeric fatty...
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7959807 |
Method for recovering useful components from dyed polyester fiber
To establish an efficient and economical useful component recovery method capable of recovering high purity useful components from a dyed polyester fiber. A method for recovering useful components...
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7947750 |
Method for removing color from polymeric material
Color is removed from polymeric material by a method which comprises contacting a dyed or pigmented polymer composition with a non-aqueous extraction solvent comprising a nitrogen containing...
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7935736 |
Method for recycling polyesters or polyester mixtures from polyester-containing waste
The invention relates to a method for recycling polyesters or polyester mixtures from polyester-containing waste, in which the polyester or the polyester mixture is dissolved in a solvent and...
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7935737 |
Articles derived from compositions containing modified polybutylene terephthalate (PBT) random copolymers derived from polyethylene terephthalate (PET)
Compositions of matter including articles derived from (a) from 5 to 99.99 wt % of a modified polybutylene terephthalate random copolymer that (1) is derived from polyethylene terephthalate and (2)...
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7928150 |
Process for the manufacture of lonomeric polybutylene terephthalate from polyethylene terephthalate, and compositions and articles thereof
An ionomeric, modified poly(1,4-butylene terephthalate) copolymer comprising: polyester units comprising non-ionomeric ester units and ionomeric ester units substituted with an inorganic ionic...
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7923506 |
Molding compositions containing modified polybutylene terephthalate (PBT) random copolymers derived from polyethylene terephthalate (PET)
A molding composition comprising: (a) from 40 to 99.99 wt % of a modified polybutylene terephthalate random copolymer that (1) is derived from polyethylene terephthalate component selected from the...
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7902264 |
Polytrimethylene terephthalate (PTT) derived from polyethylene terephthalate (PET) and containing PET residues
A composition comprising a polytrimethylene terephthalate random copolymer that (1) is derived from polyethylene terephthalate component selected from the group consisting of polyethylene...
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7897651 |
Method for depolymerizing polyester and unsaturated polyester, and method for recovering polyester monomer using the depolymerization
A method for rapidly depolymerizing a polyester and an unsaturated polyester by irradiating the polyester with microwaves in the presence of an alkylene glycol in which a titanium oxide fine powder...
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7893120 |
Method for reclaiming pulverized synthetic resin product
A pulverized thermoplastic resin product such as a pulverized thermoplastic product containing a black pigment, a mixture of a pulverized thermoplastic product containing a colored pigment and a...
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7893122 |
Chemical process for recycling polyethylene terephthalate (PET) waste
The present invention relates to a process for chemical recycling of PET waste that comprises, among other stages, a saponification reaction stage, wherein PET waste particles are reacted with...
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7820728 |
Methods and systems for recycling carpet and carpets manufactured from recycled material
The present invention pertains to carpet and methods of making and recycling carpet. In one aspect, the carpet includes: a primary backing which has a face and a back surface; a plurality of fibers...
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7799835 |
Recycling and reduction of plastics and non-plastics material
The present invention provides, e.g., methods to recycle and/or reduce plastic, non-plastic, or a combination thereof, from a waste stream. The methods of the present invention include contacting...
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7799838 |
Elastomer blends of polyesters and copolyetheresters derived from polyethylene terephthalate, method of manufacture, and articles therefrom
A composition comprising: (1) from 50 to 99 wt % of a modified, random copolyetherester containing: (i) a modified, random polybutylene terephthalate copolymer block that is derived from a...
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7795320 |
Copolyetheresters derived from polyethylene terephthalate
The invention relates to a composition comprising a modified, random copolyetherester containing a modified, random polybutylene terephthalate copolymer block that is derived from a polyethylene...
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7619013 |
Reclaimed resin composition produced from pulverized waste plastic material containing solid foreign materials
[Problems] To produce a resin composition from a waste plastic material composed of a major portion of a thermoplastic resin and a small amount of incompatible solid foreign material. [Means for...
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7598297 |
Method of reclaiming multilayered film waste
Disclosed is a method of reclaiming a multilayered film which comprises a plastic layer including polyester (PET), polypropylene (PP), and polyethylene (PE) as main components, and an aluminum...
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7569617 |
Method and instrument of polymer processing treatment
The object of the present invention resides in providing a method and instrument of polymer processing treatment, wherein a sudden pressure change due to expansion by gasification of a reactant...
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7547734 |
Method for producing recycled resin, and resin material containing recycled resin produced by that method
Recycled resin is produced by a method including a dismantling/recovery step of dismantling products containing resin moldings and recovering the resin moldings, a removal step of removing unwanted...
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7511081 |
Recycled method for a wasted polymer which is mixed polyester polyamide and reclaimed materials thereof
The present invention relates to a recycling method of a mixed waste of polyester and polyamide (hereinafter, referred to as “mixed waste”) in which polyesters including polyethylene ter...
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7462649 |
Method for recycling pet bottle
A through process comprising depolymerization reaction of used PET bottles with EG, recovering DMT by ester interchange reaction with MeOH, obtaining terephthalic acid by hydrolysis of the...
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7306738 |
Method of deionizing solution yielded by polyester decomposition with ethylene glycol
There is provided a method for deionizing a decomposition produced solution resulting from decomposition of a polyester by ethylene glycol. The ester interchange reaction and hydrolysis reaction...
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7297721 |
Process for controlled polymerization of a mixed polymer
The present invention provides a process for the preparation of high molecular weight crystalline Polyethyleneterephthalate (PET) using up to 50% of Post consumer recycled PET flakes along with...
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7214723 |
Method for the decontamination of polyethylene terephthalate
A process for removing contaminants from PET components by mixing ethanediol with the PET feedstock at a temperature about the boiling point of ethanediol and for a time sufficient to convert the...
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7202283 |
Method for dissolving saturated polyester solution for decomposing saturated polyester and method for decomposition using the same
The present invention provides a dissolution method for saturated polyester capable of recycling saturated polyester used in fibers, a film, a bottle and others with ease and a low cost, a solution...
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7192988 |
Process for recycling polyester materials
The present invention is a process for recycling colored polyester. More specifically, colored polyester for recycling is depolymerized by the addition of glycol to form the monomer BHET. The BHET...
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7138435 |
Method of decomposing thermosetting resin, apparatus and heat control program
A method of decomposing a thermosetting resin by a decomposer comprising the steps of: pre-heating the thermosetting resin up to a pre-heating temperature T0; kneading the pre-heated thermosetting...
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7129278 |
Aqueous polymer dispersions
The overall performance of water-reducible polymer dispersions, more specifically alkyd dispersions, can be substantially improved by utilizing resins derived from acidolysis reaction products of...
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7014970 |
Resin composition
A resin composition having a softening point of from 80° to 165° C., obtained by reacting a poly C2-4 alkylene terephthalate having a melting point of 200° C. or more with a low-molecular weight po...
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6919383 |
CO2-assisted deploymerization, purification and recycling of step-growth polymers
A method of depolymerizing a polymer comprises contacting a polymer with a fluid comprising carbon dioxide and at least one component, wherein the fluid plasticizes the polymer and facilitates...
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6887909 |
Processes for producing aqueous alkyd resin dispersions
The present invention provides production processes of aqueous alkyd resin dispersions, said processes comprising a step of synthesizing alkyd resin by dissolving polyester resin whose chief...
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6867322 |
Ester-forming monomer
An ester-forming monomer obtained by depolymerization of polytrimethylene terephthalate and having an acrolein content of no greater than 0.5 wt %. Polymers obtained using the monomer and fibers,...
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6833094 |
Dimensionally stable parts having good torsional stability and compositions and methods for making same
Compositions, apparatus and methods of the present invention concern the manufacturing parts that remain strong and dimensionally stable after exposure to e-coat painting conditions. Such...
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6803389 |
Process for producing polyester resin
This invention discloses a process for producing a polyester resin, which is transparent, substantially free of occurrence of foreign matters or filtration residue, and is subject to no problem in...
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6780894 |
Treatment liquid for cured unsaturated polyester resin and treatment method thereof
The present invention provides a decomposition treatment liquid for a cured unsaturated polyester resin, comprising a phosphoric acid-type compound or salt thereof and an organic solvent as...
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6777048 |
Polyester compositions containing silicon carbide
A polyester pellet composition, a preform, and a bottle, each comprising a polyester polymer and silicon carbide. A polyester, and in particular a polyethylene terephthalate polyester, bottle...
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6770680 |
Method for recycling pet components and device for carrying out said method
A process for the recycling of PET flakes from comminuted PET bottles, wherein the flakes are subjected to a washing treatment, are treated for at least 20 minutes in at least one washer at an...
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6750260 |
Process for chemical recycling of polyurethane-containing scrap
A process of chemically recycling polyurethane-containing scrap. Polyurethane-containing scrap is subjected to a chemolysis reaction to produce chemolysis polyol products. The chemolysis polyol...
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6730709 |
Biodegradable recycled polyester resin and production process therefor
The present invention provides a biodegradable recycled polyester resin and a production process therefor, wherein the polyester resin is inexpensive and economical due to use of recycled aromatic...
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6689821 |
Chemical method of removing paint film on plastic resin using isopropyl alcohol
Thermosetting paint film is removed by adding plastic resin coated with thermosetting paint film into a mixed solution of an alcoholic solvent and alkali and heating this mixed solution while...
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6642350 |
Method of purifying bishydroxyalkyl terephthalate
A container made of, e.g., polyethylene terephthalate is pulverized and decomposed in the presence of a catalyst by the use of a solvent such as an alcohol or glycol to obtain crude bishydroxyalkyl...
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6576774 |
Process for recycling polytrimethylene terephthalate cyclic dimer
This invention is an improvement upon the known process for polymerization of polytrimethylene terephthalate by esterification of terephthalic acid or dimethyl terephthalate with 1,3-propane diol,...
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6573304 |
Method for obtaining polyols and polyol thus obtained
The invention relates to the field of polymer chemistry. It features a method for obtaining polyols consisting in a first step in reacting glycols, i.e. plurialcohols with a functionality at least...
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6545061 |
Recycling of polyethylene terephthalate with regeneration of acetic acid
Disclosed herein is a process for depolymerizing and purifying recyclable PET comprising the steps of: (a) conducting acetolysis on recyclable PET to form terephthalic acid and ethylene glycol...
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6518322 |
Conversion of contaminated polyethylene terephthalate to decontaminated polybutylene terephthalate
Decontaminated crushed polyethylene terephthalate is converted to decontaminated PBT withtout requiring a catalyst by mixing with 1,4-butanediol under reduced pressure, transeterifying at 120-190° ...
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6512046 |
Polymerizable unsaturated polyester resin composition
A practical polymerizable unsaturated polyester resin composition is provided, wherein a polyester skeleton derived from collected PET is introduced, for effective utilization of waste PET such as...
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6429233 |
Method for reusing polyester chip
This invention relates to a method for recycling a polyester chip which comprises providing a polyester chip (a), polyol (b) and polybasic acid (c), subjecting said (a) and said (b) to...
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6410607 |
Glycolysis process for recycling of post-consumer pet
Disclosed herein is a process for depolymerizing and purifying contaminated post-consumer polyester. In the process, depolymerization is effected by way of glycolysis in an agitated reactor vessel....
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