Abstract: The present invention relates to an acrylated semi-crystalline hyperbranched polyurethane oligomer and a preparation method thereof, which is characterized in that on the basis of the synthesis of hyperbranched polyurethane oligomer, it adopts a two-step process to make modifications to form a methacrylic and/or acrylic double bond and a long carbon chain with a carbon atom number higher than 10 or a benzene ring or a naphthalene ring at the terminals. The obtained oligomer has a lower melting point and a higher glass transition temperature and can be cured by means of radiation, and the curing rate is high enough to effectively improve production efficiency and save energy to form a cured film having a higher hardness and excellent thermal stability. The raw materials used in the method of the invention are easily obtained, and the method is suitable for large-scale production in industry.
Abstract: Disclosed are a synthetic resin composition for use as building materials such as window frames, as well as a product manufactured using the same. More particularly, the synthetic resin composition comprises a tetrapolymer of acrylic rubber-styrene monomer-butadiene rubber-vinyl cyanide monomer and a styrene-vinyl cyanide copolymer having a high molecular weight and a high degree of dispersion. Unlike products manufactured using prior polyvinyl chloride (PVC), building material such as window frames manufactured using the synthetic resin composition are recyclable, and thus can contribute to a reduction in the generation of hormone-disrupting chemical dioxin, which is released in the burning thereof. Also, the resin composition can be manufactured into products having excellent properties of weather resistance and colorability without using environmental pollutants such as cadmium stearate or lead stearate, which are used as thermal stabilizers.
Type:
Grant
Filed:
May 12, 2006
Date of Patent:
November 23, 2010
Assignee:
Korea Kumho Petrochemical Co., Ltd.
Inventors:
Jang Hyun Choi, Joo Yub Ho, Seung Kyu Lee, Yun Hwan Kim
Abstract: Commercial spandex can be prepared with greater efficiency, improved consistency and at lower costs from a high-solids content polyurethaneurea polymer solution. The polyurethaneurea is prepared using a combination of 4,4?-MDI and 2,4?-MDI, and an amount of chain extenders and chain terminators such that the polymer solution, prior to spinning, is highly soluble and has an appropriate pre-spun IV and primary amine content. Such spandex fibers, and the fabrics and garments comprising them, have good dyeability and colorfastness, as well as other desirable characteristics.
Type:
Grant
Filed:
November 3, 2004
Date of Patent:
November 23, 2010
Assignee:
INVISTA North America s.àr.l.
Inventors:
Nathan E. Houser, Gordon W. Selling, Beverly Jean Selle, Steven Peter Pardini, Robert Dewhurst, Elizabeth Todd Singewald
Abstract: Described are coating compositions for treating substrates such as hard and soft surfaces to render the surfaces oil and water repellent, as well as stain and dirt resistant. The compositions described include three component systems in an organic solvent, where the components include a hydrolyzable perfluoropolyetherisocyanate derived silane, and to non-fluorinated components such as alkoxy silanes, one optionally containing a reactive functional group.
Abstract: The ring-containing modified resin is represented by the following chemical formula (1) R1[—(—O—CO—NH—R2—NH—CO—O—R3—)p—O—R4]q??(1) (in the chemical formula (1), R1 is a dehydroxyl residue of a resin having a benzene ring and/or a condensed ring and hydroxyl group: —R2— is deisocyanate group derived from an organic diisocyanate: —R3— is a dehydroxyl residue of polyol having number-average molecular weight of 200 to 30000: p is 1 to 3: —R4 is a hydrogen atom, alkyl group having 1 to 18 carbons, phenyl group: q is the same number as the number of the dehydroxyl residue of R1).
Abstract: Disclosed herein is a composition comprising an aromatic diamine that is a solid at room temperature and a stabilizing quantity of a hindered amine light stabilizer and its use as a polyurethane curing agent.
Abstract: Absorbable polyurethanes, polyamides and polyester urethanes prepared from at least one compound selected from: or the diamines and diisocyanates thereof, wherein each X represents a member independently selected from —CH2COO— (glycolic acid moiety), —CH(CH3)COO— (lactic acid moiety), —CH2CH2OCH2COO— (dioxanone), —CH2CH2CH2CH2CH2COO— (caprolactone moiety), —(CH2)yCOO— where y is one of the numbers 2, 3, 4 or 6-24 inclusive, and —(CH2CH2O)z?CH2COO— where z? is an integer between 2 and 24, inclusive; each Y represents a member independently selected from —COCH2O— (glycolic ester moiety), —COCH(CH3)O— (lactic ester moiety), —COCH2OCH2CH2O— (dioxanone ester), —COCH2CH2CH2CH2CH2O— (caprolactone ester), —CO(CH2)mO— where m is an integer between 2, 3, 4 or 6-24 inclusive, —COCH2O(CH2CH2O)n— where n is an integer between 2 and 24, inclusive; R? is hydrogen, benzyl or an alkyl group, the alkyl group being either straight-chained or branched; p is an integer between 1 and 4, inclusive; and Rn represents one or more
Abstract: A transparent, non elastomeric, high index, impact resistant polythiourethane/urea material comprising the reaction product of: a) at least one (?, ?)-diiso(thio)cyanate cycloaliphatic or aromatic prepolymer having a number average molecular weight ranging from 100 to 3000 gmol?1, and b) at least one primary diamine, in an equivalent molar ratio amine function/iso(thio)cyanate function from 0.5 to 2, preferably from 0.90 to 1.10, wherein, said prepolymer and diamine are free from disulfide (—S—S—) linkage and at least one of the prepolymer or the diamine contains one or more S atoms in its chain.
Type:
Grant
Filed:
November 14, 2001
Date of Patent:
August 3, 2010
Assignee:
Essilor International Compagnie Generale d'Optique
Inventors:
Aref Ben Ahmed Jallouli, Joey O. Obordo, Yassin Yusef Turshani, Peiqi Jiang, Fadi O. Adileh, Steven Weber
Abstract: Disclosed is a radiation-crosslinkable thermoplastic polymer composition, a process for the preparation thereof, an angioplasty balloon and a medical catheter made using such a composition. The composition contains a reactive monomer cross-linker facilitates cross-linking of the reaction product upon contact of the cross-linker-containing composition with energy from a radiation source.
Abstract: A method for depositing dielectric material into gaps between wiring lines in the formation of a semiconductor device includes the formation of a cap layer and the formation of gaps into which high density plasma chemical vapor deposition (HDPCVD) dielectric material is deposited. First and second antireflective coatings may be formed on the wiring line layer, the first and second antireflective coatings being made from different materials. Both antireflective coatings and the wiring line layer are etched through to form wiring lines separated by gaps. The gaps between wiring lines may be filled using high density plasma chemical vapor deposition.
Type:
Grant
Filed:
November 20, 2001
Date of Patent:
May 18, 2010
Assignee:
United Microelectronics Corporation
Inventors:
Chih-Chien Liu, Ta-Shan Tseng, Wen Bin Shieh, Juan-Yuan Wu, Water Lur, Shih-Wei Sun
Abstract: The invention relates to rubber mixtures, comprising: (A) at least one rubber, (B) at least one oxidic filler and (C) at least one (haloorganyl)alkylpolyethersilane of the general formula (X)(X?)(X?)Si—RI-Hal. The rubber mixtures can be used for production of mouldings.
Type:
Grant
Filed:
May 10, 2007
Date of Patent:
April 27, 2010
Assignee:
Evonik Degussa GmbH
Inventors:
Karsten Korth, Andre Hasse, Dirk Laur, Ingo Kiefer, Oliver Klockmann, Philipp Albert, Manuel Friedel
Abstract: The present invention relates to a process for preparing low-viscosity, allophanate-containing and NCO-free polyurethane prepolymers curable by actinic radiation, and to the products obtainable by this process. The prepolymers have residual monomer contents of less than 0.5% by weight and an NCO content of less than 1% by weight, and are prepared by a process in which A) diisocyanates, B) hydroxy-functional compounds containing groups which react with ethylenically unsaturated compounds on exposure to actinic radiation, and C) polyester, polyether or polycarbonate polyols having a functionality of at least 1.
Type:
Grant
Filed:
March 30, 2007
Date of Patent:
April 20, 2010
Assignee:
Bayer MaterialScience AG
Inventors:
Michael Ludewig, Jan Weikard, Nicolas Stoeckel, Wolfgang Fischer
Abstract: Described are compositions containing fluorinated polyether isocyanate derived silane compounds for treating substrates such as hard surfaces, e.g. ceramic and/or glass, to render them oil and water repellent, and stain resistant, articles having coatings comprising such compounds, and methods for applying such coatings.
Type:
Grant
Filed:
September 8, 2003
Date of Patent:
January 26, 2010
Assignee:
3M Innovative Properties Company
Inventors:
Rudolf J. Dams, Steven J. Martin, Richard M. Flynn
Abstract: A process for preparing high-functionality highly branched polyureas which comprises reacting one or more carbonates with one or more amines having at least two primary and/or secondary amino groups, at least one amine having at least three primary and/or secondary amino groups.
Type:
Grant
Filed:
November 4, 2004
Date of Patent:
January 12, 2010
Assignee:
BASF Aktiengesellschaft
Inventors:
Bernd Bruchmann, Jean-Francois Stumbe, Eva Wagner
Abstract: Modified stable polyisocyanates are described having at least one isocyanate function modified by a group having cross-linking functionality.
Abstract: A polyurethane coating made by: applying to a surface a polyol composition and an isocyanate composition, such that a mixture of the polyol composition and the isocyanate composition is formed during the application; and allowing the mixture to cure to the polyurethane coating. The polyol composition has a polyol monomer having the chemical formula: R1 is a divalent radical selected from aliphatic, aromatic, and ether-containing group. R2 is a monovalent radical selected from aliphatic, aromatic, ester-containing group, ether-containing group, and acrylic-containing group. R2 is free of —O—CH2—CH(OH)— groups, and the polyol monomer is free of epoxy groups and amino hydrogens. The isocyanate composition comprises an isocyanate compound having at least two isocyanate groups. The polyol composition or the isocyanate composition comprises a water scavenger. The polyol composition or the isocyanate composition comprises a polyurethane catalyst.
Type:
Grant
Filed:
July 26, 2007
Date of Patent:
November 24, 2009
Assignee:
The United States of America as represented by the Secretary of the Navy
Abstract: A polyol monomer comprising the formula: R1 and R3 are —H, aliphatic, aromatic, or ether; R2 is aliphatic, aromatic, ester, ether, or acrylic, and R1 contains a hydroxyl group, R3 contains a hydroxyl group, R2 contains —O—CH2—CH(OH)—, or any combination thereof. The polyol monomer may be made by reacting an epoxy and an amine. Either the epoxy contains more than one epoxide groups, the amine contains a hydroxyl group, or both. A thermoset made by reacting the polyol monomer with a polyisocyanate.
Type:
Grant
Filed:
January 17, 2003
Date of Patent:
November 10, 2009
Assignee:
The United States of America as represented by the Secretary of the Navy
Abstract: A plasma etch process for etching a dielectric material employing two primary etchants at low flows and pressures, and a relatively low temperature environment within the etch chamber. The two primary etchant gases are CHF3 and CH2F2, delivered at flow rates on the order of between about 10 sccm and 40 sccm for CHF3 and between about 10 sccm and 40 sccm for CH2F2. Small quantities, on the order of 10 sccm or less, of other gases such as C2HF5 and CF4 may be added.
Abstract: A two-part curing high-durable polyurethane elastomer composition having excellent heat resistance and wet heat resistance, and excellent workability such that a viscosity after two-part mixing is suitable for casting workability which comprises (i) a polyisocyanate component, and (ii) an active hydrogen-containing compound comprising (A) a polyol having a hydroxyl value of from 25 to 55 obtained by reacting a castor oil fatty acid, 12-hydroxystearic acid, or a condensate of their fatty acids, with a polyol (X) having a molecular weight of from 400 to 1,500, and (B) a polyol having a hydroxyl value of from 100 to 500 obtained by ring opening an epoxidized fatty acid ester with a polyhydric alcohol.
Abstract: A highly reactive polyurethane powder coating composition, which contains uretdione groups that are hardenable at low temperatures, contains A) at least one uretdione-containing powder coating hardener based on aliphatic, (cyclo)aliphatic or cycloaliphatic polyisocyanates and hydroxyl-containing compounds, the hardener having a melting point of from 40 to 130° C., a free NCO content of less than 5% by weight, and a uretdione content of 6-18% by weight; B) at least one hydroxyl-containing polymer having a melting point of from 40 to 130° C., and an OH number of between 20 and 200 mg KOH/g; C) 0.001-3% by weight of at least one tetraalkyl ammonium carboxylate catalyst, based on a total amount of components A) and B). Components A) and B) are present in a ratio so that for each hydroxyl group of component B) there is from 0.3 to 1 uretdione group of component A).
Type:
Grant
Filed:
May 3, 2004
Date of Patent:
August 11, 2009
Assignee:
Evonik Degussa GmbH
Inventors:
Emmanouil Spyrou, Holger Loesch, Andreas Wenning