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Class 521/138 - At least one polymer is derived from a polycarboxylic acid or derivative and a polyol or wherein the polymer-forming system containing the same type of reactants


Subclass of Class 521 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter wherein at least one of the polymers is the
No. of patents: 296
Last issue date: 11/29/2011


1                
NumberTitleIssue Date
8067477Resin composition for electrophotographic toners and electrophotographic toners
An object of the present invention is to provide the resin composition for electro-photographic toner, which the electro-photographic toner to be obtained by it is superior to low temperature fixing properties and a hot offset resistance, and the electro-photographi...
11/29/2011
7759403Flexible polyurethane foam, process for its production, and seat for automobile using the flexible polyurethane foam
To provide a flexible polyurethane foam having good vibration characteristics and suitable particularly for a seat for an automobile. A flexible polyurethane foam obtainable by reacting a polyol composition with a polyisocyanate compound in the presence of a ...
07/20/2010
7635724Flexible polyurethane foam, process for its production, and seat for automobile using the flexible polyurethane foam
To provide a flexible polyurethane foam having good vibration characteristics and suitable particularly for a seat for an automobile. A flexible polyurethane foam obtained by reacting a polyol composition with a polyisocyanate compound in the presence of a ca...
12/22/2009
7439297Foamable fluoropolymers compositions without using foaming agents
A composition comprising: A) 50-99.9% by weight of at least a copolymer (1) of ethylene (E) with chlorotrifluoroethylene (CTFE) wherein CTFE is comprised between 53 and 70% by moles, having a crystallinity in the range 5-45%; B) 0.1-50% by ...
10/21/2008
7423070Surface-modified base matrices
The present invention is a surface-modified base matrix comprised of a porous polymeric base matrix onto which branched hydrophilic polyhydroxy-functional polymers have been covalently attached, wherein the polyhydroxy-functional polymers are hyperbranched polymers ...
09/09/2008
7388036Flexible polyurethane foam, process for its production, and seat for automobile employing it
A novel flexible polyurethane foam having good vibration characteristics and being excellent in occupant posture stability, is provided. A flexible polyurethane foam obtainable by reacting a high molecular weight polyoxyalkylene polyol or a polymer-dispersed ...
06/17/2008
7368483Porous composition of matter, and method of making same
A low-k organic dielectric material having stable nano-sized porous is provided as well as a method of fabricating the same. The porous low-k organic dielectric material is made from a composition of matter having a vitrification temperature (Tv-comp) which includes...
05/06/2008
7273894Compositions for the preparation of void-containing articles
Disclosed are novel compositions for the preparation of void-containing articles comprising a polymer matrix and a voiding agent The voiding agent comprises at least one first polymer and at least one second polymer, which are selected on the basis of physical prope...
09/25/2007
7271202Reactive hot melt adhesive
The invention is a reactive hot melt composition which has excellent adhesion and curing properties, and can be formulated into free-flowing pellets or beads, by using an ethylene-acrylic acid copolymer, and athylene-methacrylic acid copolymer, and/or an ethylene-ac...
09/18/2007
7241832Biodegradable polymer blends for use in making films, sheets and other articles of manufacture
Biodegradable polymer blends suitable for laminate coatings, wraps and other packaging materials are manufactured from at least one “hard” biopolymer and at least one “soft” biopolymer. “Hard” biopolymers tend to be more brittle and rigid and typically h...
07/10/2007
7179882Low viscosity polymer polyols
The present invention relates to low viscosity polymer polyols and to a process for the preparation of these low viscosity polymer polyols. These polymer polyols comprise the free-radical polymerization product of (A) a base polyol, (B) a pre-formed stabilizer, and ...
02/20/2007
7175910Absorbent cores for absorbent diapers having reduced thickness and improved liquid handling and retention performance and comprising a super absorbent polymer
The present invention relates to absorbent cores for absorbent articles, which are intended to receive and retain bodily discharges such as urine. Such articles are disposable hygiene articles like baby diapers, training pants, adult incontinence articles, feminine ...
02/13/2007
7153566Porous film and process for producing the same
A porous film having excellent moisture permeability, flexibility and exudation resistance, as well as a manufacturing method capable of forming and stretching at high speed a porous film having the characteristics described above, the porous film being molded from ...
12/26/2006
7115673Photosensitive resin composition, porous resin, circuit board, and wireless suspension board
The present photosensitive resin composition 2 comprises a polyamic acid resin 4, a photosensitive agent, a dispersible compound 3 dispersible in the polyamic acid resin 4, and a solvent. The porous resin is obtained by removing the solve...
10/03/2006
7091302Process for the preparation of polycarbonate
The invention describes a process for the preparation of polycarbonate. The process includes (a) transesterifying at least one aromatic dihydroxyaryl compound and a diaryl carbonate in the melt in the presence of a catalyst, (b) mixing the ...
08/15/2006
6999234Polarizing element, and plane light source unit and liquid crystal display apparatus using the same
A polarizing element having excellent scattering and polarizing properties is made from a stretched sheet composed of a continuous phase and a dispersed phase. The element has continuous and dispersed phases including different resins, and the refractive index diffe...
02/14/2006
6833094Dimensionally 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 manufacturing includes providing a molding compound having about 55-65% by wei...
12/21/2004
6812264Foamable polyester resin composition
A foamable polyester resin composition comprising (A) 100 parts by weight of a polyester resin, (B) from 0.5 to 30 parts by weight of a (meth)acrylic ester polymer or a polymer mixture obtained by polymerizing from 0 to 50 parts by weight of a monomer mixture (b) in...
11/02/2004
6800668Syntactic deformable foam compositions and methods for making
The invention relates to methods for preparing a syntactic foam composition suitable for use as a carrier for chemicals or other compounds, including pharmaceuticals. The invention further relates to compositions prepared in accordance with the methods of the presen...
10/05/2004
6790870Methods of making foamed materials of blended thermoplastic polymers using carbon dioxide
A method of producing a foamed material comprises contacting a mixture comprising a first thermoplastic polymer and a second thermoplastic polymer with a blowing agent, wherein the first thermoplastic polymer has a higher percent crystallinity that the second thermo...
09/14/2004
6787580Water-free preparation process for multimodal thermoplastic polymer foam and foam therefrom
Prepare a multimodal thermoplastic polymer foam having a distribution of large and small cells in a substantial absence of water by using a blowing agent stabilizer. Multimodal foams of the present invention have blowing agent stabilizer predominantly located proxim...
09/07/2004
6777454Vesiculated polyester granules
This invention relates to a process of preparing vesiculated granules of crosslinked carboxylated polyester resin utilising a particular class of non-alkylphenolethoxylate surfactant. ...
08/17/2004
6766571Adhesive composition comprising thermoplastic polyester and trapped gas bubbles
A glazing adhesive product comprising a thermoplastic polyester material having trapped gas bubbles dispersed therein whereby the product has surface pores to provide a suction effect. Also provided is a method of installing/removing vehicle glazing. ...
07/27/2004
6642282Porous para-oriented aromatic polyamide film, prepreg thereof, and base substrate for printed circuit board
Provided is a porous para-oriented aromatic polyamide film which contains fine particles composed of a heat-resistant resin in an amount of 10 to 400 parts by weight based on 100 parts by weight of a pare-oriented aromatic polyamide and has a linear therm...
11/04/2003
6630167Hyaluronic acid anti-adhesion barrier
Methods of forming crosslinked hyaluronic acid anti-adhesion barriers, crosslinked hyaluronic acid anti-adhesions barriers, methods for preventing or inhibiting adhesions, and methods of promoting healing of a wound are provided. The method of forming the...
10/07/2003
6596784Strengthened thermoplastic for window coverings
A thermoplastic window covering article, and the method for making the same. The window covering article is formed of a closed cell foam of a thermoplastic strengthened with diatomaceous earth having less than about two percent moisture....
07/22/2003
6596389Foamed composite panel with improved acoustics and durability
An acoustical panel formed from a fibrous, open-celled material comprised of up to about 50% by weight fibers, between about 3% and about 10% by weight binder, between about 20% and about 75% by weight filler and about 0.01% to about 2.0% by weight surfac...
07/22/2003
6583189Strengthened thermoplastic
A thermoplastic article, and the method for making the same. The article is formed of a closed cell foam thermoplastic or substantially solid thermoplastic strengthened with diatomaceous earth having less than about two percent moisture....
06/24/2003
6543573Speaker unit, speaker system, and speaker diaphragm manufacturing method
The present invention provides a speaker unit comprising a diaphragm of 0.5 to 10 mm thick aromatic polycarbonate with a density of 0.03 to 0.6 g/cm3, and a mechanism for driving the diaphragm. The aromatic polycarbonate used for the diaphragm ...
04/08/2003
6458858Biodegradable polyester material particles
In a process for preparing expanded or expandable polymer beads based on biodegradable saturated polyesters made from at least one diol and from at least one dicarboxylic acid, A. polymer pellets are dispersed in a liquid, B. a volatile blowing agent is inject...
10/01/2002
6414045One-component polyurethane compositions with improved curing
A one-component polyurethane foam composition is described, which contains at least one prepolymer (isocyanate prepolymer), which has isocyanate groups, at least one blowing agent and known auxiliary and additive materials containing at least one ester, f...
07/02/2002
6355699Process for manufacturing biomedical foams
The present invention provides an improved lyophilization process for forming biocompatible foam structures. The process allows the foam structures to be tailored for specific end uses. The foams formed by this process are well suited to be used in medica...
03/12/2002
6339109Method of pelletization of polymer
A method of preparing cellular pellets from a prepolymer comprising a blowing agent, the method comprising the steps of: a) extruding the prepolymer through a die, the die maintained at conditions such that the blowing agent remains in the condensed phase in t...
01/15/2002
6323251Thermoplastic/thermoset hybrid foams and methods for making same
Foams comprising blends of thermoplastic and thermoset materials wherein the thermoset forms a discontinuous phase in a continuous thermoplastic phase are described. Foams comprising an uncured thermoset and unreacted radiation-activatable curing agent in...
11/27/2001
6313185Polymers having backbones with reactive groups employed in crosslinking as precursors to nanoporous thin film structures
Nanoporous materials are fabricated from polymers having backbones with reactive groups used in crosslinking. In one aspect of preferred methods and compositions, the reactive groups in the backbone comprise a diene and a dienophile. The diene may advanta...
11/06/2001
6306921Foamed beads of polyester resin
Foamed beads of polyester resin having rheological and crystallizability characteristics suitable for the preparation of foamed articles by sintering beads in a mold heated with superheated steam or with inert gas or air....
10/23/2001
6258924Biodegradable polymers, the preparation thereof, and the use thereof for producing biodegradable moldings
Biodegradable polyether esters P1 obtainable by reacting a mixture essentially comprising: (a1) a mixture essentially comprising: 20-95 mol % of adipic acid or ester-forming derivatives thereof or mixtures thereof, 5-80 mol % of terephthalic acid or ester-form...
07/10/2001
6214897Compositions of polycondensed branched polyester polymers and aromatic polycarbonates, and the closed cell polymer foams made therefrom
A foamable polyester composition comprising a combination of blowing agent and mixed polymer composition comprising: a) a semi-crystalline polyester composition comprising a polycondensed branched polyester polymer, and b) an aromatic polycarbonate polymer. Th...
04/10/2001
6201034Biodegradable polymers, the production thereof and the use thereof for producing biodegradable moldings
Biodegradable polyesters P1 obtainable by reaction of a mixture consisting essentially of (a1) a mixture consisting essentially of from 35 to 95 mol % of adipic acid or ester-forming derivatives thereof or mixtures thereof, from 5 to 65 mol % of terephthalic a...
03/13/2001
6187830Process for the preparation of foamed articles
The present invention relates to a process for the preparation of a foamed article having a foam density of less than 180 kg/m3 and an average cell diameter of less than 1.5 mm comprising the extrusion of a molten semi-crystalline thermoplastic...
02/13/2001
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