Multiple-layer golf ball

Disclosed herein is a multi-layer golf ball having a soft outer cover. The golf ball has an inner cover layer with a Shore D hardness of 60 or more, and an outer cover with a Shore D hardness of 55 or less, and more preferably 50 or less. In a particularly preferred form of the invention, the outer cover comprises one or more polyurethane materials. The golf ball of the invention has exceptionally soft feel and high spin rates on short shots of 80 yards or less, and particularly, 40 yards or less, while maintaining good distance and average spin on full shots.

Fiber-Reinforced Polyurethane Composite Plates

Fiber-reinforced polyurethane composite plates having a thickness of at least 12 mm contains at least 20% by weight of reinforcing fibers embedded in a polyurethane polymer matrix, which polyurethane polymer matrix has a calculated molecular weight between crosslinks of from 450 to 2500. The composite plates have excellent load-bearing properties and exhibit small permanent sets upon loading.

PRODUCTION METHOD OF THERMOPLASTIC AROMATIC POLYESTER RESIN COMPOSITION

A manufacturing method for a thermoplastic aromatic polyester resin composition is disclosed having a step of blending: a thermoplastic aromatic polyester resin A; an alkali composition B containing a thermoplastic aromatic polyester resin a and an alkali compound b; and a carbodiimide compound C. The alkali composition B is preferably a composition in which an aqueous solution of the alkali compound b is melt-kneaded with the thermoplastic aromatic polyester resin a. The carbodiimide compound C preferably contains an aromatic carbodiimide compound. The alkali compound U content in the thermoplastic aromatic polyester resin composition is preferably 10 ppm by mass or more and 100 ppm by mass or less. 1. A manufacturing method for a thermoplastic aromatic polyester resin composition , having a step of blending: a thermoplastic aromatic polyester resin A; an alkali composition B containing a thermoplastic aromatic polyester resin a and an alkali compound b; and a carbodiimide compound C.2. The manufacturing method for a thermoplastic aromatic polyester resin composition according to claim 1 , wherein the alkali composition B is a composition in which an aqueous solution of the alkali compound b is melt-kneaded with the thermoplastic aromatic polyester resin a.3. The manufacturing method for a thermoplastic aromatic polyester resin composition according to claim 1 , wherein the carbodiimide compound C contains an aromatic carbodiimide compound.4. The manufacturing method for a thermoplastic aromatic polyester resin composition according to claim 1 , wherein the alkali compound b content in the thermoplastic aromatic polyester resin composition is 10 ppm by mass or more and 100 ppm by mass or less.5. The manufacturing method for a thermoplastic aromatic polyester resin composition according to claim 1 , wherein the alkali compound b content in the alkali composition B is 0.05 mass % or more and 5 mass % or less.6. The manufacturing method for a thermoplastic aromatic ...

BIFURAN-MODIFIED POLYESTERS

Copolyesters such as polyethylene terephthalate (PET) or polyethylene furanoate (PEF) modified with bifuran polyacids such as dimethyl-2,2′-bifuran-5,5′-dicarboxylate (BFE), 2,2′-bifuran-5,5′-dicarboxylic acid (BDA), or bis(2-hydroxyethyl)-2,2′-bifuran-5,5′-dicarboxylate (BHEB), and/or bifuran polyhydroxyls, may have improved properties such as glass transition temperature (T), tensile modulus, barrier properties, crystallinity, and/or impact strength. Polyethylene terephthalate-co-bifuranoate (PETBF) has an improved T. Also described are polyethylene furanoate-co-bifuranoates (PEFBF). 1. A bifuran-modified polyester comprising:a diacid component;a diol component; anda bifuran comonomer in an amount of from 1 to 50 weight percent based on the total weight of the polyester.2. The bifuran-modified polyester of wherein the bifuran comonomer comprises a bifuran diacid; a bifuran diester; a diol bifuran diester; an ester-forming equivalent thereof; or a combination thereof.3. The bifuran-modified polyester of wherein the bifuran comonomer comprises a polyhydroxyl bifuran.4. The bifuran-modified polyester of claim 1 , wherein the diacid component comprises a polyfunctional carboxylic acid monomer selected from terephthalic acid claim 1 , furan dicarboxylic acid claim 1 , isophthalic acid claim 1 , naphthalic acid claim 1 , bibenzoic acid claim 1 , 1 claim 1 ,3-cyclohexanedicarboxylic acid claim 1 , 1 claim 1 ,4-cyclohexanedicarboxylic acid claim 1 , succinic acid claim 1 , glutaric acid claim 1 , adipic acid claim 1 , azelaic acid claim 1 , and sebacic acid claim 1 , ester forming equivalents thereof claim 1 , and combinations thereof.5. The bifuran-modified polyester of claim 4 , wherein the diol component comprises a polyhydroxyl compound selected from the group consisting of: aliphatic polyols; C-Ccyclic polyols; polyhydroxyl furans; and combinations thereof.6. The bifuran-modified polyester of claim 5 , wherein the polyhdroxyl compound is selected from the group ...

COMPOSITIONS CONTAINING POLYMERIC CARBODIIMIDE, EPOXIDE AND POLYESTER-BASED POLYMERS, THEIR PRODUCTION AND USE

The present invention relates to compositions containing polymeric carbodiimide, epoxide and polyester-based polymers, their production and use. 1. A composition comprising: [{'br': None, 'sup': 1', '2', '2', '1, 'sub': 'm', 'R—R—(—N═C═N—R—)—R\u2003\u2003(I),'}, m represents an integer from 2 to 500, preferably 3 to 20, very particularly preferably 4 to 10;', {'sup': '2', 'sub': 1', '12', '7', '18', '1', '12, 'R═C-C-alkyl-substituted arylenes, C-C-alkylaryl-substituted arylenes and optionally C-C-alkyl-substituted alkylene-bridged arylenes comprising a total of 7 to 30 carbon atoms and arylene; and'}, {'sup': 1', '3', '3', '3', '4', '5', '3', '4', '5, 'sub': 1', '12', '6', '12', '7', '18', '1', '22', '6', '12', '6', '18', '7', '18, 'R═—NCO, —NCNR, —NHCONHR, —NHCONRRor —NHCOOR, wherein Rand Rare identical or different and represent a C-C-alkyl, C-C-cycloalkyl, C-C-aralkyl or aryl radical and Rrepresents a C-C-alkyl-, C-C-cycloalkyl-, C-C-aryl or C-C-aralkyl radical and an unsaturated alkyl radical having 2-22 carbon atoms or an alkoxypolyoxyalkylene radical;'}], 'in which'}], '(a) at least one polymeric aromatic carbodiimide of formula (I)'}(b) at least one epoxide; and(c) at least one thermoplastic polyester-based polymer selected from the group comprising polyethylene terephthalate (PET), polytrimethylene terephthalate (PTT), thermoplastic polyester elastomers (TPE E), ethylene vinyl acetate (EVA), polylactic acid (PLA) and/or PLA derivatives, polybutylene succinates (PBS), polyhydroxyalkanoates (PHA), and various blends, thermoplastic polyurethanes, polyurethane elastomers, PU adhesives, and PU casting resins.3. The composition according to claim 2 , wherein Rrepresents a C-C-alkyl- claim 2 , C-C-cycloalkyl- claim 2 , C-C-aryl or C-C-aralkyl radical and an unsaturated alkyl radical having 16-18 carbon atoms claim 2 , or an alkoxypolyoxyalkylene radical.4. The composition according to claim 1 , wherein the epoxide is an epoxide having at least 2 epoxide groups.5. ...

AROMATIC LIQUID CRYSTAL POLYESTER, AROMATIC LIQUID CRYSTAL POLYESTER COMPOSITION, AND MOLDED ARTICLE

An aromatic liquid crystal polyester containing repeating structural units represented by formulas (A1), (B), (C) and (D) shown below. 2. The aromatic liquid crystal polyester according to claim 1 , composed solely of repeating structural units represented by formulas (A1) claim 1 , (B) claim 1 , (C) and (D).3. The aromatic liquid crystal polyester according to claim 1 , whereina molar fraction of the repeating structural unit represented by formula (A1) is at least 30 mol % but not more than 80 mol % relative to a total molar amount of all repeating units,a molar fraction of the repeating structural unit represented by formula (B) is at least 10 mol % but not more than 35 mol % relative to a total molar amount of all repeating units,a molar fraction of the repeating structural unit represented by formula (C) is at least 0.1 mol % but not more than 20 mol % relative to a total molar amount of all repeating units, anda molar fraction of the repeating structural unit represented by formula (D) is at least 9.9 mol % but not more than 34.9 mol % relative to a total molar amount of all repeating units.4. The aromatic liquid crystal polyester according to claim 1 , further containing a repeating structural unit represented by formula (A2) shown below:{'br': None, '—O—Ar1—CO—\u2003\u2003(A2)'}wherein Ar10 represents a 1,4-phenylene group, and the group represented by Ar10 may have a halogen atom, an alkyl group of 1 to 10 carbon atoms or an aryl group of 6 to 20 carbon atoms as a substituent.5. The aromatic liquid crystal polyester according to claim 1 , having a weight average molecular weight of at least 20 claim 1 ,000 claim 1 , and a flow start temperature of at least 200° C. but not more than 370° C.6. The aromatic liquid crystal polyester according to claim 1 , wherein the repeating structural unit represented by formula (D) is one or both of a repeating structural unit derived from 4 claim 1 ,4′-biphenol and a repeating structural unit derived from hydroquinone.7. ...

Polymerizable composition for optical materials, optical material, and method of manufacturing optical material

The polymerizable composition for optical materials of the present invention includes: (A) a compound having a carbon-carbon double bond and at least one group selected from an isocyanate group and an isothiocyanate group in a molecule; and (B) a polythiol compound.

THERMOPLASTIC POLYURETHANE COMPOSITION FOR INJECTION MOLDING AND METHOD OF MANUFACTURING THE SAME

The present invention provides a thermoplastic polyurethane composition for injection molding and a method of manufacturing the same. The thermoplastic polyurethane composition for injection molding can be easily injection-molded since a slip property is imparted to a soft segment, and can possess excellent durability properties such as heat-aging resistance, photoaging resistance, and wear resistance, and stability properties such as airbag deployment performance and anti-fogging property, as well as excellent tactile sensation and embossing quality, when a chain extender and a multifunctional polydimethylsiloxane-based compound are mixed with an isocyanate- and ether-containing polyester polyol, and can be useful in simplifying processes, reducing manufacturing costs, and simplifying facilities due to a decrease in the number of parts when molded articles are manufactured using the composition. 1. A thermoplastic polyurethane composition for injection molding comprising:from about 15 to about 60 parts by weight of an isocyanate compound;from about 30 to about 70 parts by weight of an ether-containing polyester polyol;from about 5 to about 40 parts by weight of a chain extender; andfrom about 0.1 to about 5 parts by weight of a multifunctional polydimethylsiloxane-based compound.2. The thermoplastic polyurethane composition of claim 1 , wherein the isocyanate compound comprises at least one selected from the group consisting of diphenylmethane diisocyanate (MDI) claim 1 , toluene diisocyanate (TDI) claim 1 , hexamethylene diisocyanate (HDI) claim 1 , dicyclohexylmethane diisocyanate (H12MDI) claim 1 , and isophorone diisocyanate (IPDI).3. The thermoplastic polyurethane composition of claim 1 , wherein the isocyanate compound has an NCO/OH molar ratio of from about 0.98 to about 0.99.4. The thermoplastic polyurethane composition of claim 1 , wherein the ether-containing polyester polyol comprises at least one selected from the group consisting of a multifunctional ...

Composite Structure

A composite structure comprising a resinous component that is adhered to a surface of a metal component is provided. The resinous component is formed from a polymer composition that comprises a polyarylene sulfide, inorganic fibers, and an impact modifier. The inorganic fibers have an aspect ratio of from about 1.5 to about 10. 1. A composite structure comprising a resinous component that is adhered to a surface of a metal component , wherein the resinous component is formed from a polymer composition that comprises a polyarylene sulfide , inorganic fibers , and an impact modifier , wherein the inorganic fibers having an aspect ratio of from about 1.5 to about 10 , the aspect ratio being defined as the cross-sectional width of the fibers divided by the cross-sectional thickness of the fibers.2. The composite structure of claim 1 , wherein the inorganic fibers constitute from about 1 wt. % to about 50 wt. % of the polymer composition claim 1 , the impact modifier constitutes from about 1 wt. % to about 40 wt. % of the polymer composition and/or the polyarylene sulfide constitutes from about 35 wt. % to about 95 wt. % of the polymer composition.3. The composite structure of claim 1 , wherein the polyarylene sulfide is a linear polyphenylene sulfide.4. The composite structure of claim 1 , wherein the impact modifier includes an epoxy-functionalized olefin copolymer.5. The composite structure of claim 1 , wherein the epoxy-functionalized olefin copolymer contains an ethylene monomeric unit and an epoxy-functional (meth)acrylic monomeric component.6. The composite structure of claim 5 , wherein the epoxy-functional (meth)acrylic monomeric component is derived from glycidyl acrylate claim 5 , glycidyl methacrylate claim 5 , or a combination thereof.7. The composite structure of claim 5 , wherein the epoxy-functional (meth)acrylic monomeric unit constitutes from about 1 wt. % to about 20 wt. % of the copolymer.8. The composite structure of claim 5 , wherein the epoxy- ...

COMPOSITION AND METHOD FOR COMPOSITE MATERIAL IMPREGNATED WITH SEMI-CRYSTALLINE POLYAMIDE, OBTAINED FROM A PREPOLYMER AND A CHAIN EXTENDER

A molding composition including at least one semi-crystalline polyamide derived from the polyaddition of a) at least one polyamide prepolymer bearing n identical functions X chosen from carboxyl, amine and hydroxyl, and of b) at least one non-polymeric reactive extender bearing two identical functions Y that are reactive with said functions X with n ranging from 1 to 3, the polyamide and prepolymer a) including 55 mol % to 95 mol % of amide units A, 5 mol %-45 mol % of amide units B with A corresponding to x.T in which x is a linear aliphatic C9-C18 diamine and B corresponding to x′.T in which x′ may be B1): specific branched aliphatic diamine dependent on x or B2): MXD or B3): linear aliphatic diamine which depends on x, the polyamide having a Tg of at least 90° C. and a Tm of less than or equal to 280° C. 1. A non-reactive molding composition comprising at least one thermoplastic polymer and optionally reinforcing fibers or fibrous reinforcement , and , in this case , said at least one polymer being able to impregnate said fibers (or said fibrous reinforcement) and to form the thermoplastic matrix of the composite material:{'sub': 2', '2, 'wherein at least one thermoplastic polymer is a semi-crystalline polyamide polymer with a glass transition temperature Tg of at least 80° C., and a melting point Tm of less than or equal to 280° C. and in that it is a polyaddition polymer between a) at least one thermoplastic polyamide prepolymer, bearing n identical reactive end functions X, chosen from: —NH, —COH and —OH, with n being from 1 to 3, and b) at least one chain extender Y-A′-Y, with A′ being a single bond linking the two functions Y or a hydrocarbon-based diradical, of non-polymeric structure and bearing two identical reactive end functions Y, which are reactive by polyaddition with at least one function X of said prepolymer a), and said extender b) having a molecular mass of less than 500,'}and [{'sub': 9', '18, 'A: is a major amide unit present in a molar content ...

Polymerizable composition for optical material, optical material and method for producing optical material

Disclosed is a polymerizable composition for o an optical material containing tolylene diisocyanate, hexamethylene diisocyanate, and one or more polythiol compounds selected from the group consisting of 4-mercaptomethyl-1,8-dimercapto-3,6-dithiaoctane, 4,8-, 4,7- or 5,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, pentaerythritol tetrakismercaptoacetate, pentaerythritol tetrakismercaptopropionate, 2,5-bis(mercaptomethyl)-1,4-dithiane, bis(mercaptoethyl)sulfide, 1,1,3,3-tetrakis(mercaptomethylthio)propane, 4,6-bis(mercaptomethylthio)-1,3-dithiane and 2-(2,2-bis(mercaptomethylthio)ethyl)-1,3-dithietane.

Method for producing cured product of episulfide-based resin

The present invention can provide a method for producing a cured product of an episulfide-based resin, the method having: (A) a step for obtaining a composition for a resin by mixing compound (a), compound (b) and a polymerization catalyst; (B) a step for pouring the composition for a resin into a mold; and (C) a step in which, by increasing the temperature of a heating medium, the composition for a resin is polymerized in the heating medium that contains a liquid having a thermal conductivity of 0.2 W/m·K or higher, or in a shower of the heating medium. The maximum temperature of the heating medium in step (C) is 55 to 110° C. (a) A compound which has two episulfide groups per molecule and which is represented by formula (1): wherein m represents an integer from 0 to 4 and n represents an integer from 0 to 2 (b) A compound having one or more thiol groups per molecule.

PROCESS FOR PRODUCING OPTICAL MATERIAL

A process for producing an optical material of the present invention includes a step of mixing di- or higher-functional thiol compounds (A) having one or more sulfide bonds and/or one or more ester bonds with an imidazole-based curing catalyst (B) to prepare a mixed solution; a step of mixing the mixed solution with an isocyanate compound (C) including at least one kind of a di- or higher-functional alicyclic isocyanate compound (c1) and/or a di- or higher-functional aliphatic isocyanate compound (c2) to prepare a polymerizable composition for optical materials; a step of injecting the polymerizable composition for optical materials into a mold; and a step of polymerization-curing the polymerizable composition for optical materials in the mold. 1. A process for producing an optical material , comprising:a step of mixing di- or higher-functional thiol compounds (A) having one or more sulfide bonds and/or one or more ester bonds with an imidazole-based curing catalyst (B) to prepare a mixed solution;a step of mixing the mixed solution with an isocyanate compound (C) including at least one kind of a di- or higher-functional alicyclic isocyanate compound (c1) and/or a di- or higher-functional aliphatic isocyanate compound (c2) to prepare a polymerizable composition for optical materials;a step of injecting the polymerizable composition for optical materials into a mold; anda step of polymerization-curing the polymerizable composition for optical materials in the mold.3. The process for producing an optical material according to claim 1 ,wherein the imidazole-based curing catalyst (B) is at least one kind selected from the group consisting of dimethylimidazole and benzylmethylimidazole.4. The process for producing an optical material according to claim 1 ,wherein the alicyclic isocyanate compound (c1) is at least one kind selected from the group consisting of 1,3-bis(isocyanatomethyl)cyclohexane, 1,4-bis(isocyanatomethyl)cyclohexane, bis(4-isocyanatocyclohexyl)methane, ...

A POLYOL SYSTEM FOR PREPARING POLYURETHANE

The present application discloses a polyol system for preparing polyurethane comprising: i) at least one active chain extender having at least two groups that can react with an isocyanate, wherein at least one group that can react with an isocyanate is free primary —NH2 group; ii) at least one active chain extender having three groups that can react with an isocyanate, wherein at least one group that can react with an isocyanate is free primary —OH group, and iii) at least one polyether polyol starting from an amine. The polyol system according to the present disclosure is phase-stable without layering and capable of releasing mold quickly after reacting with an isocyanate to produce polyurethane. 1. A polyol system for preparing polyurethane comprising:{'sub': '2', 'i) at least one active chain extender having at least two groups that can react with an isocyanate, wherein at least one group of the at least two groups that can react with an isocyanate is a free primary —NHgroup;'}ii) at least one active chain extender having three groups that can react with an isocyanate, wherein at least one group of the three groups that can react with an isocyanate is a free primary —OH group; andiii) at least one polyether polyol starting from an amine.2. The polyol system according to claim 1 , wherein the polyol system further comprises a basic polyether polyol selected from polyether polyols with a hydroxyl value of 300 to 600 mg KOH/g.3. The polyol system according to claim 1 , wherein the polyol system further comprises one or more additives selected from the group consisting of: foaming agents claim 1 , foam stabilizers claim 1 , catalysts claim 1 , mold-release agents claim 1 , flame retardants claim 1 , color pastes claim 1 , fillers claim 1 , stabilizers claim 1 , and thixotropic agents.4. The polyol system according to claim 1 , wherein the at least one active chain extender having at least two groups that can react with an isocyanate is selected from the group ...

Cycloaliphatic carbonates as reactive diluents in epoxy resins

Embodiments of the present invention disclose a method for limiting peak exotherm temperatures in epoxy systems comprising the step of: combining an amine hardener, an epoxy and a diluent to form an epoxy system, wherein the diluent is selected from the group consisting of: ethylene carbonate, propylene carbonate, butylene carbonate, delta-valerolactam, delta-valerolactone, gamma valerolactone, butyrolactam, beta butyrolactone, gamma butyrolactone, and combinations thereof. 1. A method for limiting peak exotherm temperatures in an epoxy system comprising the step of:combining an epoxy resin, a polyetheramine, a cycloaliphatic amine and a diluent to form an epoxy system;wherein the diluent is selected from the group consisting of: ethylene carbonate, propylene carbonate, butylene carbonate, delta-valerolactam, delta-valerolactone, gamma valerolactone, butyrolactam, beta butyrolactone, gamma butyrolactone, and combinations thereof and wherein the epoxy system is substantially free of an aliphatic glycidyl ether.2. The method of claim 1 , wherein the diluent is propylene carbonate.3. The method of claim 1 , wherein the cycloaliphatic amine is isophorone diamine.4. The method of claim 1 , wherein the epoxy resin is an aromatic glycidyl ether based upon bisphenol A claim 1 , bisphenol F or a mixture of bisphenol A and bisphenol F.5. The method of claim 1 , wherein the diluent is selected from the group consisting of: delta-valerolactam claim 1 , delta-valerolactone claim 1 , gamma valerolactone claim 1 , butyrolactam claim 1 , beta butyrolactone claim 1 , gamma butyrolactone claim 1 , and combinations thereof.6. The method of claim 1 , wherein the diluent is present in an amount of 2% by weight to 15% by weight claim 1 , based on the total weight of the epoxy system.7. The method of claim 1 , wherein the diluent is present in an amount of 2% by weight to 5% by weight claim 1 , based on the total weight of the epoxy system.8. The method of claim 1 , further comprising the ...

POLYORGANOSILSESQUIOXANE, TRANSFER FILM, IN-MOLD MOLDED ARTICLE, AND HARD COAT FILM

An object of the present invention is to provide a polyorganosilsesquioxane that can form a hard coat layer having high surface hardness through in-mold injection molding and can form a tack-free coating film, and thus is suitable as a material for a hard coat layer of a transfer film that can be wound as a roll. The present invention relates to a polyorganosilsesquioxane having a constituent unit represented by Formula (1) below; wherein a molar ratio of a constituent unit represented by Formula (I) below to a constituent unit represented by Formula (II) below, namely [(constituent unit represented by Formula (I))/(constituent units represented by Formula (II))], is from 20 to 500; a ratio of constituent units represented by Formula (1) below and constituent units represented by Formula (4) below relative to a total amount (100 mol %) of siloxane constituent units is from 55 to 100 mol %; a number average molecular weight is from 2500 to 50000; and a molecular weight dispersity (weight average molecular weight/number average molecular weight) is from 1.0 to 4.0; and a curable composition including the polyorganosilsesquioxane. 1. A polyorganosilsesquioxane comprising a constituent unit represented by Formula (1):{'br': None, 'sup': '1', 'sub': '3/2', '[RSiO]\u2003\u2003(1)'}{'sup': '1', 'wherein Rrepresents a group containing a polymerizable functional group;'} {'br': None, 'sup': 'a', 'sub': '3/2', '[RSiO]\u2003\u2003(I)'}, 'a constituent unit expressed by Formula (I){'sup': 'a', 'wherein Rrepresents a group containing a polymerizable functional group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, or a hydrogen atom;'} {'br': None, 'sub': '2/2', 'sup': 'c', '[RSiO(OR)]\u2003\u2003(II)'}, 'a constituent unit represented by Formula (II){'sup': b', 'c, 'wherein Rrepresents a group ...

Novel compositions for polyurethane applications

A process comprising, consisting of, or consisting essentially of: foaming a reaction mixture containing at least one polyisocyanate and an isocyanate-reactive compound comprising at least one alkoxylated triazine-arylhydroxy-aldehyde condensate composition wherein the alkoxylated triazine-arylhydroxy-aldehyde condensate composition is a reaction product of a triazine-arylhydroxy-aldehyde condensate and at least one alkylene carbonate, is disclosed.

Process for Producing A Molded Polymeric Article

The present invention is directed to a process for producing a molded polymeric article including: 1. A process for producing a molded polymeric article comprising: (i) a mold release agent comprised of ionic fluoride and/or ionic fluoride precursor, and', '(ii) a polymeric organic material selected from the group consisting of thermosetting organic polymeric materials and thermoplastic organic materials;, '(a) providing an organic polymerizable composition comprising a reaction mixture of at least the following components(b) allowing the reaction mixture to undergo exothermic reaction;(c) providing a mold having a first part and a second part spaced one from the other thereby forming a cavity there between;(d) introducing the reaction mixture of (b) into the mold cavity wherein the reaction mixture is at a temperature of up to 130° C.;(e) holding the mold of (d) at a temperature and for a time sufficient to cure the reaction mixture thereby forming a molded polymeric article within the mold; and(f) removing the molded polymeric article from the mold.2. The process of claim 1 , wherein the mold release agent consists essentially of a fluoride-containing salt.3. The process of claim 1 , wherein the mold release agent is selected from boron trifluoride and/or a fluoride-containing material having the following structure (I):{'br': None, 'sub': n', '(4-n), 'MRF\u2003\u2003(I)'} M represents tin, bismuth, titanium, tantalum, cerium, zirconium, antimony, zinc, aluminum, yttrium, vanadium, or niobium;', 'each R independently represents a monovalent hydrocarbon group; and', 'n is an integer ranging from 1 to 3., 'where'}4. The process of claim 1 , wherein the mold release agent is selected from the group consisting of ammonium fluoride claim 1 , potassium fluoride claim 1 , cesium fluoride claim 1 , tin (II) fluoride claim 1 , sodium tetrafluoroborate claim 1 , tetrabutyl ammonium fluoride (trihydrate) claim 1 , and mixtures thereof.5. The process of claim 1 , wherein the ...

POLYMER COMPOSITION COMPRISING THERMOPLASTIC POLYURETHANE AND POLYOLEFIN

The invention is directed to a polymer composition comprising 60 to 85 parts by weight of a thermoplastic polyurethane; and 15 to 40 parts by weight of a polyolefin, where the parts by weight of the thermoplastic polyurethane and parts by weight of the polyolefin add up to 100 parts by weight; and further comprising 1 to 15 parts by weight of a hydrogenated block copolymer derived from a vinyl aromatic monomer and a conjugated diene monomer, based on 100 parts by weight as a total amount of the thermoplastic polyurethane and polyolefin. The invention is further directed to a molded article based on the polymer composition. 1. A polymer composition comprising:A) 60 to 85 parts by weight of a thermoplastic polyurethane;B) 15 to 40 parts by weight of a polyolefin, where parts by weight of the thermoplastic polyurethane A) and parts by weight of the polyolefin B) add up to 100 parts by weight; andC) 1 to 15 parts by weight of a hydrogenated block copolymer derived from a vinyl aromatic monomer and a conjugated diene monomer, based on 100 parts by weight as a total amount of the thermoplastic polyurethane A) and polyolefin B),wherein the polyolefin B) is a polyethylene, and the hydrogenated block copolymer C) is an amine-modified hydrogenated block copolymer.2. The polymer composition according to comprising:A) 65 to 75 parts by weight of the thermoplastic polyurethane;B) 20 to 35 parts by weight of the polyolefin, where parts by weight of the thermoplastic polyurethane A) and parts by weight of the polyolefin B) add up to 100 parts by weight; andC) 5 to 10 parts by weight of the hydrogenated block copolymer, based on 100 parts by weight as the total amount of the thermoplastic polyurethane A) and polyolefin B).3. The polymer composition according to claim 1 , wherein the hydrogenated block copolymer C) comprises butadiene monomer units derived from butadiene monomers as the conjugated diene monomers claim 1 , and styrene monomer units derived from styrene monomers as ...

Composition for producing transparent polythiourethane bodies

The invention relates to a composition for producing transparent polythiourethane bodies containing or consisting of A) a polyisocyanate component containing at least one polyisocyanate with a functionality of isocyanate groups of at least 2 per molecule, B) a thiol component containing at least one polythiol with a functionality of thiol groups of at least two per molecule, in addition to optionally C) auxiliary agents and additives, the ratio of isocyanate groups to groups reactive in relation to isocyanates being 0.5:1 to 2.0:1. The composition is characterised in that the polyisocyanate of the polyisocyanate component A) is produced by a gas-phase phosgenation of aliphatic, cycloaliphatic, aromatic or araliphatic polyamines. The invention also relates to a method for producing transparent polythiourethane bodies by the conversion of a composition of this type, to polythiourethane bodies produced in this manner and to the use of polyisocyanates, produced by a gas-phase phosgenation of aliphatic, cycloaliphatic, aromatic or araliphatic polyamines, for producing transparent polythiourethane bodies.

Reaction mixtures of isocyanates and polyols with extended pot life

The invention relates to compounds and methods for extending the pot life of mixtures of isocyanates and isocyanate-reactive compounds when using acidic phosphoric acid ester as a mould release agent.

RELEASE AGENT FOR VULCANIZED RUBBER MOLDING

Provided is a release agent for vulcanized rubber molding, the release agent exhibiting good mold releasability between a mold and a rubber after vulcanization and capable of being easily removed after production. The release agent for vulcanized rubber molding contains a polyoxyalkylene glyceryl ether (A). The polyoxyalkylene glyceryl ether (A) contains 50% to 95% by mass of oxyethylene groups in 100% by mass of oxyalkylene groups. The polyoxyalkylene glyceryl ether (A) preferably has a number-average molecular weight of 2,000 to 20,000. 1. A release agent , comprising:a polyoxyalkylene glyceryl ether (A), which contains 50% to 95% by mass of oxyethylene groups based on a total content of oxyalkylene groups in the release agent.2. The release agent according to claim 1 , wherein the polyoxyalkylene glyceryl ether (A) has a number-average molecular weight of 2 claim 1 ,000 to 20 claim 1 ,000.3. The release agent according to claim 1 , further comprising:a polyoxyalkylene diol (B).4. The release agent according to claim 3 , wherein a content of the polyoxyalkylene diol (B) is 20 to 500 parts by mass relative to 100 parts by mass of the polyoxyalkylene glyceryl ether (A).5. The release agent according to claim 2 , further comprising:a polyoxyalkylene diol (B).6. The release agent according to claim 5 , wherein a content of the polyoxyalkylene diol (B) is 20 to 500 parts by mass relative to 100 parts by mass of the polyoxyalkylene glyceryl ether (A). The present invention relates to a release agent for vulcanized rubber molding.Vulcanized rubber is used in, for example, automobile parts, railway parts, and construction machines. Such vulcanized rubber is obtained by feeding a rubber composition into a mold or the like, vulcanization-molding the rubber composition, and detaching the resulting molded article. In order to easily perform the detachment, a release agent is applied to the mold.Silicones are used as such a release agent. In order to remove the release agent ...

POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL, OPTICAL MATERIAL OBTAINED FROM COMPOSITION, METHOD OF PRODUCING SAME

According to the present invention, provided is a polymerizable composition for an optical material including: at least one amine compound (A) selected from a compound (a1) represented by Formula (1) and a compound (a2) represented by Formula (2); an iso(thio)cyanate compound (B) which contains two or more iso(thio) cyanate groups; and a polythiol compound (C) which contains a dithiol compound (c1) containing two mercapto groups and a polythiol compound (c2) containing three or more mercapto groups. 2. The polymerizable composition for an optical material according to claim 1 , further comprising:a polyol compound (D) which contains two or more hydroxy groups.3. The polymerizable composition for an optical material according to claim 1 ,wherein a ratio (c1/c2) of a molar number c1 of a mercapto group in a polythiol compound (c1) to a molar number c2 of a mercapto group in a polythiol compound (c2) is in a range of 1 to 13.4. The polymerizable composition for an optical material according to claim 1 ,wherein a ratio (a/b) of a molar number a of an amino group in an amine compound (A) to a molar number b of an iso(thio)cyanate group in an iso(thio)cyanate compound (B) is in a range of 0.01 to 0.20.5. The polymerizable composition for an optical material according to claim 1 ,wherein a weight-average molecular weight (MW) of the compound (a1) represented by Formula (1) is in a range of 200 to 4000.6. The polymerizable composition for an optical material according to claim 1 ,wherein a weight-average molecular weight (MW) of the compound (a2) represented by Formula (2) is in a range of 400 to 5000.7. The polymerizable composition for an optical material according to claim 1 ,wherein the dithiol compound (c1) is at least one selected from the group consisting of 2,5-dimercaptomethyl-1,4-dithiane, ethylene glycol bis(3-mercaptopropionate), 4,6-bis(mercaptomethylthio)-1,3-dithiane, 2-(2,2-bis(mercaptomethylthio)ethyl)-1,3-dithietane, and bis(2-mercaptoethyl)sulfide, andthe ...

TRANSPARENT AND ABRASION RESISTANT POLYURETHANE ELASTOMER AND PROCESS FOR PREPARING SAME

The present invention relates to a transparent and abrasion resistant polyurethane elastomer prepared from a polyurethane composition under a mold pressure of 1-5 ton, wherein the polyurethane composition comprises: a) an isocyanate component comprising one or more organic polyisocyanates; b) an isocyanate-reactive component comprising: b1) polyester polyol, polyether polyol or a combination thereof; b2) one or more aliphatic diols having a molecular weight of less than 200 and an amount of 0.1-3.5 wt. %, based on 100 wt. % by weight of the isocyanate-reactive component; c) a polydiene, which is prepared by homopolymerization or copolymerization of aliphatic diene having 4-10 carbon atoms. 1. A transparent and abrasion resistant polyurethane elastomer prepared from a polyurethane composition under a mold pressure of 1-5 ton , wherein the polyurethane composition comprises:a) an isocyanate component comprising one or more organic polyisocyanates; b1) a polyester polyol, a polyether polyol or a combination thereof;', 'b2) one or more aliphatic diols having a molecular weight of less than 200 and comprising an amount of 0.1-3.5 wt. %, based on 100 wt. % by weight of the isocyanate-reactive component; and, 'b) an isocyanate-reactive component comprisingc) a polydiene, which is prepared by homopolymerization or copolymerization of an aliphatic diene having 4-10 carbon atoms.2. The polyurethane elastomer according to claim 1 , wherein b1) comprises a polyester polyol having a molecular weight of 1000-3000 and a functionality of 1.9-3.0.3. The polyurethane elastomer according to claim 2 , wherein b1) comprises a polyester polyol having a molecular weight of 1000-3000 and a functionality of 1.9-2.1.4. The polyurethane elastomer according to claim 1 , wherein the aliphatic diol is selected from the group consisting of ethylene glycol claim 1 , diethylene glycol claim 1 , 1 claim 1 ,2-propanediol claim 1 , 1 claim 1 ,3-propanediol claim 1 , 1 claim 1 ,3-butanediol claim 1 , 1 ...

A PROCESS FOR MANUFACTURING SPECIALTY POLYESTERS & CO-POLYESTERS FROM RECYCLED BIS 2-HYDROXYETHYL TEREPHTHALATE (rBHET) AND PRODUCT THEREOF

The present invention relates to the process for manufacturing specialty polyesters & copolyesters from recycled Bis 2-Hydroxyethyl terephthalate (rBHET) derived from Polyethylene terephthalate (PET) recycled from PET scraps or waste. The polyesters/co-polyesters thus obtained are clean and of high quality which can be used for all applications but not limited to textiles, packaging, engineering and industry. 1. A process for preparation of an eco-friendly specialty Polyesters and Co-Polyesters from recycled Bis 2-HydroxyEthyl Terephthalate (rBHET) , comprising the steps of:I. melting rBHET Powder in a reactor by increasing temperature to 120 degree Celsius;II. adding catalyst and at least one additive to the melted rBHET powder;III. increasing temperature of the mixture of step II gradually in a range of 120- to 240° C.;IV. adding diols and/or comonomers to the mixture of step III and applying a pressure of 2.5 bar absolute to the mixture for a time period in the range 30-40 minutes followed by Depressurizing the reactor in 10 minutes and evacuating the reactor gradually to a pressure of 100 mb in 30 minutes to distill the byproduct;V. increasing temperature of the product to 290° C. and reducing the reactor pressure to 0.20 mb to obtain polymerized product having degree of polymerization (DP) >50;VI. terminating the reaction and granulating the polymer;VII. optionally upgrading the granules by solid state polymerization (SSP) process at a temperature in the range of 160 to 220° C. under vacuum in batch reactor or in continuous SSP process operating under nitrogen purge;VIII. cooling and packing the polyester or co-polyester obtained as the final product.2. The process as claimed in claim 1 , wherein the rBHET is taken in a ratio in the range 20-100 wt % claim 1 , amount of diol is in the range of 0-40 wt % claim 1 , amount of catalyst in the range of 0.02-0.09 wt % and additives in the range of 0-40 wt %.3. The process as claimed in claim 1 , wherein the diols are ...

Polymerizable composition for optical material, optical material obtained from composition, method of producing same

According to the present invention, provided is a polymerizable composition for an optical material including: at least one amine compound (A) selected from a compound (a1) represented by Formula (1) and a compound (a2) represented by Formula (2); an iso(thio)cyanate compound (B) which contains two or more iso(thio)cyanate groups; and a polythiol compound (C) which contains a dithiol compound (c1) containing two mercapto groups and a polythiol compound (c2) containing three or more mercapto groups.

NOVEL EPOXY RESIN SYSTEM FOR MAKING CARBON FIBER COMPOSITES

A two-component curable epoxy resin system including a dye solution. The resin system includes an epoxy resin component containing at least 80% by weight of a polyglycidyl ether of a polyphenol. The system also includes a hardener mixture containing mainly polyethylene tetraamines. The system includes triethylene diamine in specific amounts as a catalyst. The system has beneficial curing characteristics with desired color that make it useful for producing fiber-reinforced composites in a resin transfer molding process. 1. A curable epoxy resin system , comprising1) an epoxy resin component containing one or more epoxy resins, wherein at least 80% by weight of the epoxy resins is one or more polyglycidyl ethers of a polyphenol that has an epoxy equivalent weight of up to about 250;2) an amine hardener, wherein the amine hardener is a polyethylene tetraamine mixture containing at least 95% by weight polyethylene tetraamines, the mixture containing at least 40% by weight linear triethylene tetraamine, wherein at least 0.8 epoxy equivalents are provided to the reaction mixture by the epoxy resin component per amine hydrogen equivalent provided by the amine hardener; and 'wherein the resin system further comprises an internal mold release agent mixed with a dye solution.', '3) 0.01 to 0.5 moles of triethylene diamine per mole of primary and/or secondary amine compounds in the amine hardener, the triethylene diamine being present in the epoxy resin component, the amine hardener, or both;'}2. The curable epoxy resin system of claim 1 , which contains 0.09 to 0.175 moles of triethylene diamine per part per mole of per mole of primary and/or secondary amine compounds in the amine hardener.3. The curable epoxy resin system of claim which further comprises 0.1 to 10 parts by weight claim 1 , per part by weight triethylene diamine claim 1 , of a hydroxyl compound selected from the group consisting of water and compounds having at least one hydroxyl group and an equivalent ...

MOLDING THERMAL EXPANSION STRUCTURE AND MOLDING METHOD THEREOF

A molding thermal expansion structure includes a thermoplastic material and a thermal expansion material, wherein the thermoplastic material is 50 wt % to 90 wt % based on a weight of the molding thermal expansion structure; the thermal expansion material is 50 wt % to 10 wt % based on a weight of the molding thermal expansion structure; wherein, the thermal expansion material is expanded from a foaming original material through a pre-foaming process; the thermoplastic material and the thermal expansion material are mixed to form a mixed material; the mixed material is thermally expanded to form a thermal expansion structure in a molding apparatus. The molding thermal expansion structure provided in the present invention could satisfy various needs of light-weighted products. A molding method of the thermal expansion structure is also provided herein. 1. A molding thermal expansion structure , comprising:50% to 90% by weight of a thermoplastic material based on a weight of the thermal expansion structure; and50% to 10% by weight of a thermal expansion material based on the weight of the thermal expansion structure;wherein the thermal expansion material is formed from an expansion of a foam raw material by a pre-foaming step; the thermoplastic material and the thermal expansion material are mixed to form a mixed material, the mixed material is heated to expand, and to form the thermal expansion structure in a mold.2. The molding thermal expansion structure of claim 1 , wherein a volume of the thermal expansion material is 10 to 40 times of a volume of the foam raw material.3. The molding thermal expansion structure of claim 1 , wherein the thermoplastic material comprises ethylene vinyl acetate (EVA) claim 1 , thermoplastic polyurethane (TPU) claim 1 , polypropylene (PP) claim 1 , thermoplastic vulcanizate (TPV) or a combination thereof.4. The molding thermal expansion structure of claim 1 , wherein the thermal expansion material comprises a closed-cell foam material ...

NOVEL TISSUE SEPARATION BARRIER SYSTEMS AND RELATED METHODS OF USE

The present invention is directed to a tissue separation barrier system for preventing the abnormal union of two or more tissues, as well as related methods of use. These tissue separation barrier systems offer the balance of strength and flexibility to allow the tissues, such as skin, to move in a smooth and natural manner while affording a barrier between two or more tissues. Furthermore, particular embodiments of the present invention include the methods of manufacturing the tissue separation barrier systems of the present invention. 1. A tissue separation barrier system for preventing the abnormal union of two or more tissues comprising a single layer anti-adhesion silicone polymer wherein the single layer anti-adhesion silicone polymer is engineered to be implantable between two or more tissues and with sufficient flexibility to allow for ease of movement of said tissues.2. The tissue separation barrier system of claim 1 , wherein the single layer anti-adhesion silicone polymer is engineered to be implantable between two or more tissues in a subject.3. The tissue separation barrier system of claim 1 , wherein the anti-adhesion silicone polymer comprises a reinforced silicone flex (RSF) composite claim 1 , wherein said RSF composite is a two part composite system formed by the curing of a homogenized mixture of a Part A siloxane with a Part B siloxane and about 20% reinforcing material; and wherein:Part A siloxane comprises reinforced dimethyl methylvinyl siloxane, andPart B siloxane comprises reinforced dimethyl methylhydrogen siloxane.4. The tissue separation barrier system of claim 3 , wherein Part A and Part B are combined in a ratio of about 11.5 Part A siloxane to 1 Part B siloxane in a weight/weight ratio to form the RSF composite.5. The tissue separation barrier system of claim 3 , wherein said reinforcing material is silica.6. The tissue separation barrier system of claim 1 , wherein the single layer anti-adhesion silicone polymer is engineered to be ...

PROCESS FOR PREPARING A FLUID CONDUIT

The invention relates to a process for preparing a fluid conduit comprising a mono-layer comprising a thermoplastic elastomer in an amount of at least 80 wt % with respect to the total weight of the mono-layer, comprising at least the 5 following steps: a. Melting a composition comprising at least a thermoplastic elastomer having a melt volume flow rate measured at 230° C. under a load of 10 kg (MVR 230° C./10 kg), according to IS01133 (2011) of at most 40 g/10 min and having a heat resistance of at least 250 hours at 175° C. at which the 10 elongation at break remains at least 100% as measured according to ISO 527 with a test speed of 50 mm/min; b. Forming a parison from the melt; c. Placing the parsion in a mold; d. Blow-up the parison against the mold; 15 e. Cooling down the mold, thereby obtaining the fluid conduit comprising the mono-layer. The invention also relates to a fluid conduit. 1. Process for preparing a fluid conduit comprising a mono-layer comprising a thermoplastic elastomer in an amount of at least 80 wt % with respect to the total weight of the mono-layer , comprising at least the following steps:a. Melting a composition comprising at least a thermoplastic elastomer having a melt volume flow rate measured at 230° C. under a load of 10 kg (MVR 230° C./10 kg), according to ISO1133 (2011) of at most 40 g/10 min and having a heat resistance of at least 250 hours at 175° C. at which the elongation at break remains at least 100% as measured according to ISO 527 with a test speed of 50 mm/min;b. Forming a parison from the melt;c. Placing the parsion in a mold;d. Blow-up the parison against the mold;e. Cooling down the mold, thereby obtaining the fluid conduit comprising the mono-layer.2. Process according to wherein in step c) the parison is placed in a mold by drawing the parison through the mold by reduced pressure or by clamping the parison in a mold.3. Process according to claim 1 , wherein the thermoplastic elastomer is a block copolymer elastomer ...

PROCESS FOR PRODUCING POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL AND POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL

A process for producing a polymerizable composition for an optical material of the present invention includes a step of mixing (A) at least one kind of thiol compound having at least two mercapto groups, (B) a tin compound represented by general formula (1), and (C) at least one kind of isocyanate compound having at least two isocyanato groups, in which the polymerizable composition for an optical material obtained in the above step has a haze value of 0.05 or less. 1. A process for producing a polymerizable composition for an optical material , comprising: {'br': None, 'sup': '4', 'sub': c', '4−c, '(R)—Sn—X\u2003\u2003(1)'}, 'a step of mixing (A) at least one kind of thiol compound having at least two mercapto groups, (B) a tin compound represented by general formula (1), and (C) at least one kind of isocyanate compound having at least two isocyanato groups, to obtain a polymerizable composition for an optical material having a haze value of 0.05 or less,'}{'sup': 4', '5', '5, 'wherein, in general formula (1), Rrepresents an alkyl group having 1 to 8 carbon atoms, X represents a fluorine atom, a chlorine atom, a bromine atom, or —O—C(═O)—R, Rrepresents an alkyl group having 1 to 11 carbon atoms, and c represents an integer of 1 to 3.'}2. A process for producing a polymerizable composition for an optical material , the method comprising:a step of mixing (A) at least one kind of thiol compound having at least two mercapto groups and (B) a tin compound represented by general formula (1); anda step of mixing (C) at least one kind of isocyanate compound having at least two isocyanato groups and the mixed solution obtained in the above step to obtain a polymerizable composition for an optical material, {'br': None, 'sup': '4', 'sub': c', '4−c, '(R)—Sn—X\u2003\u2003(1)'}, 'wherein a haze value of the mixed solution including the component (A) and the component (B) is 0.05 or less,'}{'sup': 4', '5', '5, 'wherein, in general formula (1), Rrepresents an alkyl group having 1 ...

THERMOPLASTIC POLYURETHANE AND A COMPOSITION THEREOF

The present invention provides a thermoplastic polyurethane obtained by reacting organic diisocyanate (A), polymer polyol (B) having a number average molecular weight (Mn) of 1000-5000 and chain extender (C), wherein the chain extender (C) contains a straight chain diol (c-1) and a side chain alkyl group-containing diol (c-2), a molar ratio of the straight chain diol (c-1) and the side chain alkyl group-containing diol (c-2) (straight chain diol (c-1)/side chain alkyl group-containing diol (c-2)) in the chain extender (C) is 97/3-60/40, and a nitrogen atom content is not less than 1.5 mass % and less than 4.0 mass %. 2. The thermoplastic polyurethane according to claim 1 , wherein a proportion of the organic diisocyanate (A) is not more than 30 mass %.3. The thermoplastic polyurethane according to claim 1 , wherein the organic diisocyanate (A) is 4 claim 1 ,4′-diphenylmethane diisocyanate.4. The thermoplastic polyurethane according to claim 1 , wherein the polymer polyol (B) is a polyether polyol (b-1) claim 1 , or comprises the polyether polyol (b-1) and other polyol (b-2) claim 1 , and such that a molar ratio of the other polyol (b-2) and the polyether polyol (b-1) (other polyol (b-2)/polyether polyol (b-1)) is 0/100-40/60.5. The thermoplastic polyurethane according to claim 4 , wherein the polymer polyol (B) comprising the polyether polyol (b-1) and the other polyol (b-2) which is a polyester polyol.6. The thermoplastic polyurethane according to claim 5 , wherein a polyol component constituting the polyester polyol is a side chain alkyl group-containing diol (d).7. The thermoplastic polyurethane according to claim 6 , wherein the side chain alkyl group-containing diol (d) is 3-methyl-1 claim 6 ,5-pentanediol.8. The thermoplastic polyurethane according to claim 1 , wherein:the straight chain diol (c-1) is 1,4-butanediol; and {'br': None, 'sup': 1', '2', '3', '4', '5', '6, 'HO—(CRR)l-(CRR)m-(CRR)n-OH \u2003\u2003(I),'}, 'the side chain alkyl group-containing diol ( ...

Method for producing xylylene diisocyanates in the gaseous phase

The invention relates to a method for producing the isomers 1,3- and/or 1,4-xylylene diisocyanates by reacting the corresponding 1,3- and/or 1,4-xylylene diamines with phosgene in the gaseous phase.

The Method for Improving Fracture Toughness of Polyisocyanurate Comprising Reaction Products

A curable composition for making polyisocyanurate comprising products obtained by combining and mixing at an isocyanate index of at least 100 at least a polyisocyanate composition, a polytetrahydrofuran polyol (P-THF) having average molecular weight in range 1000-5000 g/mol as toughening agent and diols having an average molecular weight <1000 g/mol. 2. The curable composition according to claim 1 , wherein the amount of polyisocyanates in the curable composition comprises preferably at least 50 wt % polyisocyanates claim 1 , calculated on the total weight of the reactive curable composition.3. The curable composition according to claim 1 , wherein the aromaticity of the curable composition is >30 wt % claim 1 , calculated on the total weight of the reactive curable composition.4. The curable composition according to claim 1 , wherein the low molecular weight polyols comprise aromatic polyols.5. The curable composition according to claim 1 , wherein the low molecular weight polyols comprise diols having a molecular weight (MW) below 1000 g/mol and are selected from alkylene glycols and/or oxyalkylene glycols.6. The curable composition according to claim 5 , wherein the diols are selected from polyethylene glycol and/or polypropylene glycol -(1 claim 5 ,2) and -(1 claim 5 ,3) claim 5 , polybutylene glycol -(1 claim 5 ,4) and -(2 claim 5 ,3) claim 5 , polyhexanediol-(1 claim 5 ,6) claim 5 , polyoctanediol-(1 claim 5 ,8) and mixtures thereof.7. The curable composition according to claim 1 , wherein the amount of P-THF in the curable composition is in the range from 1 wt % to 25 wt % claim 1 , based on the total weight of the reactive curable polyisocyanate composition and wherein the molecular weight of the P-THF is in the range 1000-3000.8. The curable composition according to claim 1 , wherein the polyisocyanates are selected from aliphatic claim 1 , cycloaliphatic claim 1 , araliphatic and claim 1 , preferably claim 1 , aromatic polyisocyanates and mixtures thereof ...

POLYMERIZABLE COMPOSITION, TRANSPARENT RESIN, OPTICAL MATERIAL, PLASTIC LENS, AND METHOD FOR MANUFACTURING TRANSPARENT RESIN

A polymerizable composition which can suppress generation of turbidity, optical distortion, and striae in a transparent resin obtained therefrom, a transparent resin obtained from the polymerizable composition, an optical material containing the transparent resin, a plastic lens containing the optical material, and a method for manufacturing the transparent resin. The present disclosure is a polymerizable composition containing a polythiol compound having at least three mercapto groups and a polyiso(thio)cyanate compound. The polyiso(thio)cyanate compound contains only a polyiso(thio)cyanate compound having no aromatic ring, and a thiol equivalent ratio which is a measured value of a thiol equivalent of the polythiol compound with respect to a theoretical value of the thiol equivalent is 0.900 or more and less than 1.000. 1. A polymerizable composition comprising a polythiol compound having at least three mercapto groups and a polyiso(thio)cyanate compound , whereinthe polyiso(thio)cyanate compound contains only a polyiso(thio)cyanate compound having no aromatic ring, anda thiol equivalent ratio which is a measured value of a thiol equivalent of the polythiol compound with respect to a theoretical value of the thiol equivalent is 0.900 or more and less than 1.000.2. The polymerizable composition according to claim 1 , wherein the thiol equivalent ratio which is a measured value of the thiol equivalent of the polythiol compound with respect to a theoretical value of the thiol equivalent is 0.920 or more and less than 1.000.3. The polymerizable composition according to claim 2 , wherein the thiol equivalent ratio which is a measured value of the thiol equivalent of the polythiol compound with respect to a theoretical value of the thiol equivalent is 0.940 or more and less than 1.000.4. The polymerizable composition according to claim 1 , wherein the polythiol compound having at least three mercapto groups is an ester compound of a polyol compound and at least one ...

A PROCESS FOR PREPARATION OF MODIFIED POLYETHYLENE TERPHTHALATE WITH IMPROVED BARRIER, MECHANICAL AND THERMAL PROPERTIES AND PRODUCTS THEREOF

The present invention relates to a copolyester having intrinsic viscosity greater than 0.50 dL/gm, comprises: terephthalate polyester composition; and a modified transparent polybutylene naphthalate, wherein the modified polybutylene naphthalate comprises naphthalene dicarboxylic acid, 1,4-butane diol, and isophthalic acid or monoethylene glycol or diethylene glycol or cyclohexane dimethanol or polyethylene naphthalate, nucleating agent, and a modified nanoclay. 1. A copolyester having intrinsic viscosity greater than 0.50 dL/gm , the copolyester comprising:terephthalate polyester composition; anda modified transparent polybutylene naphthalate having viscosity >0.50 dL/g; and haze value <7 NTU comprising naphthalene dicarboxylic acid, 1,4-butane diol, and isophthalic acid or monoethylene glycol or diethylene glycol or cyclohexane dimethanol or polyethylene naphthalate, and at least one or more additives,wherein the copolyester is used for the manufacture of containers that can withstand an ambient temperature of about 75° C.2. The copolyester as claimed in wherein said terephthalate polyester composition comprises of polyethylene terphthalate (PET) claim 1 , and polyethylene naphthalate (PEN) or polyethylene isosorbide terephthalate (PEIT) claim 1 , or combination thereof.3. The copolyester as claimed in wherein said polyethylene naphthalate (PEN) is in an amount up to 10 wt % based on total weight of the copolyester and polyethylene isosorbide terephthalate (PEIT) is in an amount up to 10 wt % based on total weight of the polyester.4. (canceled)5. A process of preparing a copolyester claim 2 , which is used for the manufacture of containers that can withstand ambient temperature of about 75° C. claim 2 , having intrinsic viscosity greater than 0.50 dL/gm claim 2 , comprising:reacting terephthalic acid or ester thereof with monoethylene glycol and other diols, monomers, a nucleating agent, and a modified nanoclay at temperature about 150° C. to 270° C. in presence ...

Optical Articles and Methods for Preparation of Same

Provided is a transparent, non-elastomeric optical article prepared by (1) combining to form a reaction mixture (a) a polyisocyanate component; and (b) an active hydrogen component including (b1) a first component free of amino groups including at least one first polyol; and (b2) a second component containing (i) a second polyol and/or a polythiol and (ii) a compound containing both amine and hydroxyl functional groups; (2) introducing the reaction mixture to a mold at a temperature and for a time sufficient to form a thermoset polymerizate; and (3) releasing the polymerizate from the mold to yield a transparent, non-elastomeric optical article. Also provided is a method for preparing a transparent optical film. Optical films and articles prepared by the methods also are provided.

REACTION INJECTION MOLDING OF STIMULI-RESPONSIVE THERMOSETS

Disclosed are methods of using reaction injection molding to mold stimuli-responsive thermosets such as urethane linked poly(caprolactone) networks from polyols and polyisocyanates, as well as polymers prepared by such methods. 1. A method of making a stimuli-responsive thermoset , comprising:combining at a pressure of from about 800 psi to about 2000 psi a multifunctional isocyanate with a linear or branched composite polyol comprising a branched or linear semi-crystalline polymer segment having a low polydispersity and one or more non-crystalline segments, to thereby form a reaction mixture; andinjecting the reaction mixture into a mold where the multifunctional isocyanate crosslinks the linear or branched composite polyol, thereby forming a stimuli-responsive thermoset.2. The method of claim 1 , wherein the multifunctional isocyanate and linear or branched composite polyol are recirculated before being combined.3. The method of any one of the previous claims claim 1 , wherein mold is heated to about 30° C. or more.4. The method of any one of the previous claims claim 1 , wherein the pressure is from about 1000 psi to about 1600 psi.5. The method of any one of the previous claims claim 1 , wherein the pressure is from about 1450 psi to about 1600 psi.6. The method of any one of the previous claims claim 1 , wherein the amounts of multifunctional isocyanate and linear or branched composite polyol are such that hydroxyl groups and isocyanate groups are at a molar ratio of 0.8:1 to 1:0.8.7. The method of any one of the previous claims claim 1 , wherein the amounts of multifunctional isocyanate and linear or branched composite polyol are such that hydroxyl groups and isocyanate groups are at a molar ratio of 1:1.8. The method of any one of the previous claims claim 1 , wherein a portion of the linear or branched composite polyol is first combined with the multifunctional isocyanate followed by addition of the remainder of the linear or branched composite polyol.9. The ...

POLYMERIZABLE COMPOSITION, OPTICAL ARTICLE OBTAINED THEREFROM AND METHOD FOR THE PRODUCTION OF SAID OPTICAL ARTICLE

The present invention relates to a polymerizable composition comprising polyisocyanate(s) (A), polythiol(s) (B), thiol(s) (C) and catalyst(s) (D). The polyisocyanate(s) (A) is at least one bifunctional or higher functional alicyclic polyisocyanate; the polythiol(s) (B) is at least one compound selected from polythiols represented by the following general formula (B1); the thiol(s) (C) is at least one compound selected from thiols having general formula (3); and the catalyst(s) (D) is at least one polymerization catalyst selected from metal compounds, quaternary ammonium salts, organic sulfonic acids, tertiary amines and relative inorganic or organic salts. 3. The polymerizable composition according to claim 1 , wherein the polyisocyanate(s) (A) is selected from 1 claim 1 ,3-bis(isocyanatemethyl)cyclohexane claim 1 , 1 claim 1 ,4-bis(iso-cyanatemethyl)cyclohexane claim 1 , bis(4-isocyanatecyclo-hexyl)methane claim 1 , and bis(isocyanatemethyl)-bicyclo-[2.2.1]heptane.4. The polymerizable composition according to claim 1 , wherein the polyisocyanate(s) (A) is a combination of at least two compounds selected from bis(4-isocyanatecyclohexyl)methane claim 1 , bis(isocyanate-methyl)-bicyclo[2.2.1]heptane claim 1 , 1 claim 1 ,3-bis(isocyanatemethyl)-cyclohexane claim 1 , and 1 claim 1 ,4-bis(isocyanatemethyl)cyclohexane.5. The polymerizable composition according to claim 1 , wherein in polythiols (B1) claim 1 , I and m claim 1 , the same or different claim 1 , represent an integer ranging from 1 to 2 and n is 1.6. The polymerizable composition according to claim 1 , further comprising a polyisocyanate (E) selected from a non-cyclic aliphatic polyisocyanate claim 1 , an aromatic polyisocyanate claim 1 , an aliphatic polyisocyanate containing sulfur atoms claim 1 , an aromatic polyisocyanate containing sulfur atom.7. The polymerizable composition according to claim 6 , wherein the polyisocyanate (E) is selected from m-xylene diisocyanate claim 6 , 2 claim 6 ,4-tolylene ...

REACTION MIXTURES OF ISOCYANATES AND POLYOLS WITH EXTENDED POT LIFE

The invention relates to compounds and methods for extending the pot life of mixtures of isocyanates and isocyanate-reactive compounds when using acidic phosphoric acid ester as a mould release agent. 114.-. (canceled)15. A composition containing an isocyanate A and an acidic phosphoric ester B , wherein the mass ratio of A to B is not more than 3.5:1.0.16. The composition as claimed in claim 15 , wherein the isocyanate A is an aliphatic claim 15 , cycloaliphatic claim 15 , araliphatic or aromatic isocyanate or a mixture thereof.17. The use of the composition as claimed in for extending the pot life of a polyurethane composition containing at least one isocyanate A1 and at least one isocyanate-reactive compound C.18. The use as claimed in claim 17 , wherein the isocyanate-reactive compound C is a polyol claim 17 , polyamine or a polythiol.19. A process for producing a composition containing an acidic phosphoric ester B as a demolding agent claim 17 , containing the steps ofi) mixing an isocyanate A and an acidic phosphoric ester B; andii) incubating the resulting mixture.20. The process as claimed in claim 19 , wherein the incubation in process step ii) is carried out for 8 to 24 hours at temperatures between 10° C. and 40° C.21. The process as claimed in claim 19 , wherein the weight ratio of the isocyanate A to the acidic phosphoric ester B is between 2.0:1.0 and 1.0:8.0.22. A process for producing a coating composition having an extended pot life which contains at least one isocyanate A1 and an isocyanate-reactive compound C claim 19 , containing the steps ofa) providing a composition containing an isocyanate A and an acidic phosphoric ester B;b) mixing the composition from process step a) with an isocyanate A1; andc) mixing the product from process step b) with at least one isocyanate-reactive compound C.23. The process as claimed in claim 22 , wherein the isocyanate A is an aliphatic claim 22 , cycloaliphatic claim 22 , araliphatic or aromatic isocyanate or a ...

POLYMER COMPOSITION BASED ON THERMOPLASTIC COPOLYESTER ELASTOMER, MANUFACTURED ARTICLE MADE WITH SUCH POLYMER COMPOSITION AND PRODUCTION PROCESS OF SUCH POLYMER COMPOSITION

The invention relates to a polymer composition based on thermoplastic copolyester elastomer comprising: —from 90% to 70% by weight of the thermoplastic copolyester elastomer containing ester and ether bonds; —from 5% to 25% by weight of one or more saturated esters with a molecular weight between about 200 and 1,000, and preferably between 300 and 380; —from 2 to 10% by weight of expanding additives. This invention also covers a manufactured article obtained by injection moulding a predefined amount of the polymer composition according to this invention, as well as a production process of such polymer composition. 1. Polymer composition based on thermoplastic copolyester elastomer comprising:from 90% to 70% by weight of the thermoplastic copolyester elastomer containing ester and ether bonds;from 5% to 25% by weight of one or more saturated esters with a molecular weight between about 200 and 1,000, and preferably between 300 and 380;from 2 to 10% by weight of expanding additives.2. Polymer composition according to claim 1 , wherein said one or more saturated esters are present in the composition from 5% to 20% by weight.4. Polymer composition according to claim 3 , wherein said alternating-structure thermoplastic copolyester elastomer is obtained by:esterification/transesterification of one or more dicarboxylic acids, of one or more esters of dicarboxylic acids and/or of one or more dimer or trimer carboxylic acids with diols and with diol polyglycols, the esters of dicarboxylic acids and the dimer or trimer carboxylic acids having a molecular weight greater than 300 and the corresponding carboxylic acid having a molecular weight less than 300; andsubsequent polycondensation of the products of esterification/transesterification.5. Polymer composition according to claim 4 , wherein the long-chain ester units are the reaction products of the esterification/transesterification of one or more diol polyglycols selected from the group consisting of: polytetramethylene ...

HYDROXYL-CAPPING MONOMER, ITS POLYCARBONATE AND ARTICLE CONTAINING THE SAME

Disclosed are a hydroxy-capping monomer, its polycarbonate and an article including the same. Disclosed is a capping monomer capable of greatly improving mechanical properties and weather resistance when applied to polycarbonate, and polycarbonate containing the same, being prepared at high economic efficiency and having superior mechanical properties and excellent weather resistance. 2. The hydroxy-capping monomer according to claim 1 , wherein Rand Reach represent hydrogen claim 1 , and X is a C1-C3 alkylidene group.4. The hydroxy-capping monomer according to claim 1 , wherein the hydroxy-capping monomer is used as an impact reinforcing agent or a UV stabilizer in the preparation of polycarbonate.6. The polycarbonate according to claim 5 , wherein the polycarbonate is polymerized from 25 to 85% by weight of the aromatic diol monomer claim 5 , 1 to 60% by weight of the hydroxy-capping monomer represented by Formula 1 claim 5 , and 10 to 70% by weight of the carbonate precursor claim 5 , with respect to 100% by weight in total of the aromatic diol monomer claim 5 , the carbonate precursor and the hydroxy-capping monomer represented by Formula 1.7. The polycarbonate according to claim 5 , wherein the hydroxy-capping monomer represented by Formula 1 is present in an amount of 0.1 to 99.9 mol % claim 5 , based on the content of the aromatic diol compound.8. The polycarbonate according to claim 6 , wherein the polymerization is interfacial polymerization.10. The polycarbonate according to claim 5 , wherein the aromatic diol monomer comprises at least one selected from the group consisting of bis(4-hydroxyphenyl)methane claim 5 , bis(4-hydroxyphenyl)ether claim 5 , bis(4-hydroxyphenyl)sulfone claim 5 , bis(4-hydroxyphenyl)sulfoxide claim 5 , bis(4-hydroxyphenyl)sulfide claim 5 , bis(4-hydroxyphenyl)ketone claim 5 , 1 claim 5 ,1-bis(4-hydroxyphenyl)ethane claim 5 , 2 claim 5 ,2-bis(4-hydroxyphenyl)propane (bisphenol A) claim 5 , 2 claim 5 ,2-bis(4-hydroxyphenyl)butane ...

Processes for in-mold coating using a multi-cavity mold and substrates coated thereby

Disclosed are processes for in-mold coating of a plastic substrate. The processes include: (a) molding a plastic substrate in a first mold cavity of a mold comprising at least two cavities to form a molded plastic substrate; (b) introducing the molded plastic substrate into a second mold cavity of the mold; (c) introducing a coating composition into the second mold cavity containing the molded plastic substrate in order to coat the substrate, the coating composition comprising: (i) a polymer comprising isocyanate-reactive groups; and (ii) a polyisocyanate; (d) curing the composition in the second mold cavity; and (e) opening the mold cavity.

POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL, OPTICAL MATERIAL, AND METHOD OF MANUFACTURING OPTICAL MATERIAL

The polymerizable composition for an optical material of the present invention includes: (A) a compound having a carbon-carbon triple bond and at least one group selected from an isocyanate group and an isothiocyanate group in a molecule; and (B) a polythiol compound. 1. A polymerizable composition for an optical material , comprising:(A) a compound having a carbon-carbon triple bond and at least one group selected from an isocyanate group and an isothiocyanate group in a molecule; and(B) a polythiol compound.4. The polymerizable composition for an optical material according to claim 1 ,wherein the polythiol compound (B) is at least one selected from the group consisting of pentaerythritol tetrakis(3-mercaptopropionate), 4-mercaptomethyl-1,8-dimercapto-3,6-dithiaoctane, 5,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, 4,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, 4,8-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, 1,1,3,3-tetrakis(mercaptomethylthio)propane, 4,6-bis(mercaptomethylthio)-1,3-dithiane, 2-(2,2-bis(mercaptomethylthio)ethyl)-1,3-dithiethane, 1,1,2,2-tetrakis(mercaptomethylthio)ethane, and 3-mercaptomethyl-1,5-dimercapto-2,4-dithiapentane.5. The polymerizable composition for an optical material according to claim 1 , {'br': None, 'Formula; [(number of moles of isocyanate group included in polymerizable composition+number of moles of isothiocyanate group included in polymerizable composition+(number of triple bonds)×2)/number of moles of thiol group included in polymerizable composition].'}, 'wherein a functional group molar ratio represented by the following formula is 0.5 to 3.0,'}6. A method of manufacturing an optical material claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'mixing the compound (A) and the polythiol compound (B) to prepare the polymerizable composition for an optical material according to ;'}injecting the polymerizable composition into a casting mold; andpolymerizing and curing the ...

PHOSPHORUS-BASED RELEASING AGENT, OPTICAL POLYMERIZABLE COMPOSITION COMPRISING SAME AND PREPARATION THEREOF

Embodiments relate to a polymerizable composition comprising a phosphorus-based mold releasing agent for an optical use whose preparation process is improved, and a process for preparing the phosphorus-based mold releasing agent. The phosphorus-based mold releasing agents can be prepared more easily and conveniently by using phosphorous pentoxide, which can easily react with a monoalcohol and/or water at room temperature in the absence of a catalyst or a solvent. In addition, byproducts are not generated during the reaction. Thus, when a lens is produced by using the mold release agent obtained therefrom, it is possible to prevent a defective appearance of the lens that may be caused by byproducts, thereby further enhancing the appearance properties thereof. Further, since separate steps for removing byproducts, specifically, such steps as washing and filtration, are not required, wastewater is not generated. Thus, it is not only environmentally friendly, but the production cost can also be reduced as the process is simple. 2. The process for preparing a phosphorus-based mold releasing agent of claim 1 , wherein 0.5 to 7 moles of water claim 1 , the alcohol claim 1 , or the mixture thereof is reacted with 1 mole of the compound represented by the above Formula 3.3. The process for preparing a phosphorus-based mold releasing agent of claim 1 , wherein the compound represented by the above Formula 3 is first reacted with water claim 1 , followed by reaction with water claim 1 , the alcohol claim 1 , or the mixture thereof.4. The process for preparing a phosphorus-based mold releasing agent of claim 1 , wherein the compound represented by the above Formula 3 is reacted with the alcohol alone.5. The process for preparing a phosphorus-based mold releasing agent of claim 1 , wherein the compound represented by the above Formula 3 is divided and fed in a plurality of times during the reaction with water claim 1 , the alcohol claim 1 , or the mixture thereof.7. The process ...

RESIN COMPOSITIONS AND RESIN INFUSION PROCESS

Curable epoxy resin compositions suitable for liquid resin infusion processes. In one embodiment, the resin composition contains (a) at least two polyepoxides, one of which is triglycidyl ether of tris(hydroxyphenyl)methane, (b) an aromatic amine curing agent, and (c) core-shell rubber particles. In another embodiment, the resin composition (a) at least two polyepoxides, one of which is diglycidyl ether of bis(hydroxyphenyl)fluorene, (b) an aromatic amine curing agent, and (c) core-shell rubber particles. 112-. (canceled)14. The curable epoxy resin composition of claim 13 , wherein naphthalene-based epoxy is selected from: diglycidyl ether of 1 claim 13 ,6-dihydroxy naphthalene; 1 claim 13 ,7-dihydroxy naphthalene; 1 naphthalene cresol glycidyl ether; 1 claim 13 ,2-dihydroxynaphthalene; 1 claim 13 ,3-dihydroxynaphthalene; 1 claim 13 ,4-dihydroxynaphthalene; 1 claim 13 ,5-dihydroxynaphthalene; 2 claim 13 ,3-dihydroxynaphthalene; 2 claim 13 ,7-dihydroxynaphthalene; and combination thereof.15. The curable epoxy resin composition of claim 13 , wherein naphthalene-based epoxy is present in an amount greater than 0% and up to 30% by weight based on the total weight of the composition.1618-. (canceled)19. A liquid resin infusion (LRI) manufacturing method for producing a molded article claim 13 , comprising the steps of providing a fibrous preform configured to receive liquid resin claim 13 , infusing the fibrous preform with the curable epoxy resin composition of claim 13 , and curing the resin-infused preform at a curing temperature (T).20. The method of claim 19 , further comprising:a. placing the fibrous preform in a closed mold;b. heating the mold to an initial temperature;c. injecting the curable epoxy resin composition into the mold so as to infuse the fibrous preform with the epoxy resin composition; and{'sub': 'c', 'd. curing the resin-infused preform at the curing temperature (T), which is higher than the initial temperature, for a time period sufficient to form ...

Polyurethane resin

Disclosed is a polyurethane resin which is obtained by a reaction between a polyisocyanate component, which contains 1,4-bis(isocyanatomehyl)cyclohexane including not less than 80% by mole of trans isomers, and an active hydrogen compound component.

COPOLYCARBONATE RESIN AND METHOD FOR PREPARING THE SAME

The present disclosure relates to a polycarbonate resin and a method of preparing the same, has an effect of providing a polycarbonate resin having superior chemical resistance and wear resistance due to application of a predetermined comonomer thereto, and a method of preparing the same. 2. The copolycarbonate resin according to claim 1 , wherein the carbonate precursor is comprised in an amount of 10 to 150 parts by weight based on 100 parts by weight of a total of the bisphenol based monomer and the comonomer.3. The copolycarbonate resin according to claim 1 , wherein the bisphenol based monomer is one or more selected from the group consisting of bis(4-hydroxyphenyl) methane claim 1 , bis(4-hydroxyphenyl)ether claim 1 , bis(4-hydroxyphenyl)sulfone claim 1 , bis(4-hydroxyphenyl)sulfoxide claim 1 , bis(4-hydroxyphenyl)sulfide claim 1 , bis(4-hydroxyphenyl)ketone claim 1 , 1 claim 1 ,1-bis(4-hydroxyphenyl)ethane claim 1 , 2 claim 1 ,2-bis(4-hydroxyphenyl)propane (bisphenol A) claim 1 , 2 claim 1 ,2-bis(4-hydroxyphenyl)butane claim 1 , 1 claim 1 ,1-bis(4-hydroxyphenyl)cyclohexane (bisphenol Z) claim 1 , 2 claim 1 ,2-bis(4-hydroxy-3 claim 1 ,5-dibromophenyl)propane claim 1 , 2 claim 1 ,2-bis(4-hydroxy-3 claim 1 ,5-dichlorophenyl)propane claim 1 , 2 claim 1 ,2-bis(4-hydroxy-3-bromophenyl)propane claim 1 , 2 claim 1 ,2-bis(4-hydroxy-3-chlorophenyl)propane claim 1 , 2 claim 1 ,2-bis(4-hydroxy-3-methylphenyl)propane claim 1 , 2 claim 1 ,2-bis(4-hydroxy-3 claim 1 ,5-dimethylphenyl)propane claim 1 , 1 claim 1 ,1-bis(4-hydroxyphenyl)-1-phenylethane claim 1 , bis(4-hydroxyphenyl)diphenylmethane claim 1 , and α claim 1 ,ω-bis[3-(o-hydroxyphenyl)propyl]polydimethylsiloxane.5. The copolycarbonate resin according to claim 1 , wherein the copolycarbonate further comprises a molecular weight regulator.6. The copolycarbonate resin according to claim 5 , wherein the molecular weight regulator is mono-alkylphenol.7. The copolycarbonate resin according to claim 5 , wherein an amount ...

A PROCESS FOR PRODUCING A POLYURETHANE ELASTOMER

The present invention relates to a process for producing a polyurethane elastomer, a polyurethane elastomer produced by the process, and the use of the polyurethane elastomer in a glass encapsulation/elastic gasket or the like. The process mainly includes adding a hindered amine light stabilizer to the isocyanate-containing component A. Its reaction with the organotin catalyst in the isocyanate reactive component (i.e. component B), which may cause a loss of the catalytic performance of the catalyst, is avoided. The curing speed of the polyurethane elastomer is increased, thereby the production efficiency is improved and costs are reduced. 1. A process for producing a polyurethane elastomer , comprising producing the polyurethane elastomer by reacting a reaction system comprising the following components: A1) one or more isocyanates;', 'A2) at least one hindered amine light stabilizer in a content of 0.25-8.0 pbw, based on a total weight of the component A;, 'a component A, comprising B1) an EO-terminated long-chain polyether polyol having a functionality of 3, a hydroxyl value of 17.5-35.5 mgKOH/g, and a weight average molecular weight of 4800-10000 g/mol as determined according to GB/T 21863-2008 in a content of 30-85 pbw, based on a total weight of the component B;', 'B2) optionally an EO-terminated long-chain polyether polyol having a functionality of 2, a hydroxyl value of 14.0-62.0 mgKOH/g, and a weight average molecular weight of 1800-8000 g/mol as determined according to GB/T 21863-2008 in a content of 0-55 pbw, based on a total weight of the component B;', 'B3) a catalyst, comprising B3-1) at least one organotin catalyst., 'a component B, comprising2. The process as claimed in claim 1 , wherein the hindered amine light stabilizer is selected from one claim 1 , two or more of the group consisting of (2 claim 1 ,2 claim 1 ,6 claim 1 ,6-tetramethyl-4-hydroxypiperidyl) benzoate claim 1 , bis(2 claim 1 ,2 claim 1 ,6 claim 1 ,6-tetramethyl-4-hydroxypiperidyl) ...

Process for producing polyurethane resin

A process for producing a polyurethane resin of the present invention includes a step (i) of obtaining a prepolymer by adding an alcohol (B) to isocyanate (A) such that a ratio of hydroxyl groups to isocyanato groups of the isocyanate (A) falls into a range of 10 mol % to 20 mol % and reacting the isocyanate (A) with the alcohol (B) in the presence of an acidic phosphoric acid ester (C) and a hindered amine-based compound (D), a step (ii) of obtaining a polymerizable composition in a manner in which the alcohol (B) is further added to and mixed with the prepolymer at a temperature of equal to or less than 30° C., and a step (iii) of polymerizing the prepolymer and the alcohol (B) contained in the polymerizable composition. The isocyanate (A) contains an aromatic isocyanate and the alcohol (B) has two or more hydroxyl groups and is further defined.

POLYAMIDES MODIFIED WITH (PER)FLUOROPOLYETHER SEGMENTS

The present invention relates to thermoplastic polyamides (PA) comprising recurring units derived from a PFPE dicarboxylic acid (PFPA-DA) or a PFPE diamine (PFPE-NN) in a defined weight amount with respect to other units derived from the other monomers used in the course of polymerization. Polyamides (PA) are endowed with improved surface properties, chemical resistance and reduced brittleness and do not require the addiction of impact modifiers. 1. A polyamide (PA) consisting of recurring units derived from monomers (A) and (B) , wherein monomer (A) is selected from at least one of: one or more hydrogenated aliphatic, cycloaliphatic or aromatic diamine(s) [amine (NN)] or derivative(s) thereof; and', 'one or more hydrogenated aliphatic, cycloaliphatic or aromatic dicarboxylic acid(s) [acid (DA)] or derivative(s) thereof; and, '(i) a mixture of(ii) one or more aminoacid(s) [aminoacid (AN)] or lactam(s) [lactam (L)], and wherein monomer (B) is at least one (per)fluoropolyether monomer (PFPE-M) selected from a PFPE-diamine (PFPE-NN) and PFPE-dicarboxylic acid (PFPE-DA), wherein the amount of monomer (B) ranges from 0.1 to 10% wt with respect to the overall weight of monomers (A) and (B).2. The polyamide (PA) according to claim 1 , wherein amine (NN) is an alkylene diamine having 2 to 36 carbon atoms.3. The polyamide (PA) according to claim 1 , wherein amine (NN) is an aromatic diamine selected from meta-xylylene diamine (MXDA) claim 1 , and para-xylylene diamine.4. The polyamide (PA) according to claim 1 , wherein acid (DA) is aromatic dicarboxylic acid comprising two reactive carboxylic acid groups [acid (AR)] or an aliphatic dicarboxylic acid comprising two reactive carboxylic acid groups [acid (AL)].5. The polyamide (PA) according to claim 4 , wherein acid (DA) is an acid (AL) selected from adipic acid and sebacic acid.6. The polyamide (PA) according to claim 1 , wherein (PFPE-DA) is a fluoropolymer comprising a fully or partially fluorinated polyalkyleneoxy chain ...

THERMOPLASTIC COMPOSITIONS, METHODS, APPARATUS, AND USES

Thermoplastic polyurethane (TPU) compositions, methods for producing TPU compositions, methods of using TPU compositions, and apparatuses produced therefrom are disclosed. Disclosed TPU compositions include a thermoplastic polyurethane polymer, a heat stabilizer, a flow agent, and a filler material. The filler may be a glass fiber. Disclosed TPU compositions have improved thermal stability and improved flow properties suitable for injection molding of articles of manufacture having a large plurality of fine openings or pores. Articles produced from the composition have superior thermal stability, abrasion resistance, and chemical resistance. Example articles include screening members for vibratory screening machines. 1. A composition comprising:a thermoplastic polyurethane,a heat stabilizer selected to optimize heat resistance of the composition,a flow agent selected to optimize use of the composition in injection molding, anda filler, the filler comprising glass fibers, wherein the glass fibers are less than about 10% by weight of the thermoplastic polyurethane.2. The composition of claim 1 , wherein the glass fibers are less than about 7 percent by weight of the thermoplastic polyurethane.3. The composition of claim 1 , wherein the glass fibers are less than about 5 percent by weight of the thermoplastic polyurethane.4. The composition of claim 1 , wherein the glass fibers are less than about 3 percent by weight of the thermoplastic polyurethane.5. The composition of claim 1 , wherein the thermoplastic polyurethane is made from a low free isocyanate monomer prepolymer.6. The composition of claim 5 , wherein the low free isocyanate monomer prepolymer is p-phenylene di-isocyanate.7. The composition of claim 1 , wherein the thermoplastic polyurethane is obtained by a process wherein a thermoplastic polyurethane polymer produced by reacting a urethane prepolymer having a free polyisocyanate monomer content of less than 1% by weight with a curing agent is thermally ...

NOVEL THERMOPLASTIC POLYURETHANES, USE OF THESE MATERIAL FOR THE PREPARATION OF T-FRAMES FOR INTRAUTERINE SYSTEMS AND T-FRAMES MADE OUT OF THIS MATERIAL

The present invention relates to a novel thermoplastic polyurethane (TPU) elastomer, T-frames made thereof as well as the use of the new TPU in manufacturing of T-frames for intrauterine systems for contraception and therapy. 1. A thermoplastic polyurethane elastomer made ofa) 1,6-Hexamethylene diisocyanate with a content of 10 to 40 weight-%,b) at least one polycarbonate diol with a number average molecular weight between 800 and 2500 g/mol with a content of 25 to 65 weight-%,c) 1,6-Hexanediol, 1,8-Octanediol, 10 Decanediol and/or 1,12-Dodecanediol as chain extender,d) optionally monofunctional alcohols as chain terminators, in the presence ofe) one or more catalysts, with the addition off) inorganic fillers in the range of 0 to 35 wt.-%, based on the weight of the thermoplastic polyurethane made of components a) to d),g) an antioxidant in the range of 0.05 to 2.0 wt.-%,h) optionally, further additives and/or auxiliary substances under the proviso that the ratio of the isocyanate groups of a) to isocyanate-reactive groups of b), c) and optionally d) is from 0.9:1 to 1.1:1 andthe thermoplastic polyurethane elastomer has a flexural modulus above 90 MPa without an inorganic filler and with a flexural modulus above 100 MPa containing an inorganic filler.2. A thermoplastic polyurethane elastomer according to claim 1 , wherein the catalyst is a bismuth catalyst or a titanium catalyst.3. A thermoplastic polyurethane elastomer according to claim 1 , wherein the polycarbonate diol has a number average molecular weight of 1000 to 2100 g/mol.4. A thermoplastic polyurethane elastomer according to claim 1 , wherein the chain extender is 1 claim 1 ,8-Octanediol claim 1 , 1 claim 1 ,10-Decanediol claim 1 , and/or 1 claim 1 ,12-Dodecanediol.5. A thermoplastic polyurethane elastomer according to claim 1 , wherein Barium sulfate is used as an inorganic filler.6. A thermoplastic polyurethane elastomer according to claim 1 , wherein Licowax claim 1 , Irganox® MD 1024 claim 1 , and/or ...

POLYETHYLENE-2,6-NAPHTHALATE COMPOSITION WITH EXCELLENT BLOW MOLDABILITY, AND MOLDED PRODUCT THEREOF

The object of the present invention is to provide a highly crystalline polyethylene-2,6-naphthalate composition by achieving high molecular weight of PEN, wherein the polyethylene-2,6-naphthalate composition has greatly improved blow moldability and provides molded products having excellent hue, excellent weathering resistance, and additionally excellent transparency. The above-mentioned problems can be solved by a polyethylene-2,6-naphthalate composition comprising a specific phosphoric acid which is a phosphorus compound, cobalt element derived from a cobalt compound, manganese element derived from a manganese compound, and antimony element derived from an antimony compound, wherein the content of each of the elements simultaneously satisfies the following expressions (1) to (4): 2. The polyethylene-2 claim 1 ,6-naphthalate composition according to claim 1 , having a crystallization temperature during the period of temperature increase of 180 to 205° C. and a crystallization temperature during the period of temperature decrease of 190 to 210° C.3. The polyethylene-2 claim 1 ,6-naphthalate composition according to claim 1 , wherein the intrinsic viscosity (IV) of the polyethylene-2 claim 1 ,6-naphthalate composition satisfies the following expression (5):{'br': None, '0.80≦IV≦1.50 dL/g\u2003\u2003(5).'}4. The polyethylene-2 claim 1 ,6-naphthalate composition according to claim 1 , wherein the content of the phosphorus compound represented by the general formula (I) is 10 to 50 mmol % per mole of the dicarboxylic acid component constituting polyethylene naphthalate.5. A polyester molded product comprising the polyethylene-2 claim 1 ,6-naphthalate composition according to .6. The polyester molded product according to claim 5 , wherein the polyester molded product is a direct blow molded product.7. The polyester molded product according to claim 5 , wherein the polyester molded product is an injection blow molded product.8. The polyester molded product according to ...

INTERNAL RELEASE AGENT, COMPOSITION INCLUDING INTERNAL RELEASE AGENT, AND PROCESS FOR PRODUCING A PLASTIC LENS USING SAME COMPOSITION

An internal release agent includes at least one phosphodiester represented by the following general formula (1). 2. A composition , comprising:a polymerization reactive compound; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the internal release agent according to .'}3. The composition according to claim 2 ,{'sup': −1', '4, 'wherein the amount of the phosphodiester compound represented by the general formula (1) is 1×10to 5×10ppm with respect to the polymerization reactive compound.'}4. The composition according to claim 2 ,wherein the polymerization reactive compound is at least one kind of compound selected from group consisting of a polyiso(thio)cyanate compound, a poly(thio)epoxy compound, a polyoxetanyl compound, a polythietanyl compound, a poly(meth)acryloyl compound, a polyalkene compound, an alkyne compound, a poly(thi)ol compound, a polyamine compound, an acid anhydride, and a polycarboxylic acid compound.5. A molded product obtained by polymerizing the composition according to .6. An optical material comprised of the molded product according to .7. A plastic lens comprised of the molded product according to .8. A process for producing a plastic lens claim 5 , comprising:{'claim-ref': {'@idref': 'CLM-00002', 'claim 2'}, 'a step of cast-polymerizing the composition according to .'}9. A plastic lens obtained by the production method according to . The present invention relates to an internal release agent used as an additive in cast polymerization, a composition including the internal release agent, and a process for producing a plastic lens using the composition.In the related art, many plastic lenses are produced by a cast polymerization method comprising: injecting a composition including a polymerization reactive compound into a cavity in a mold comprised of a glass mold and a tape or a resin gasket, and performing polymerizing and curing by heating or emitting radiation. Typically, since a cured resin adheres to the glass mold and does not ...

THERMOPLASTIC POLYURETHANE

The present invention relates to thermoplastic polyurethanes obtainable or obtained by reacting at least a polyisocyanate composition comprising at least one polyisocyanate, at least one chain extender, and at least one polyol composition, wherein the polyol composition comprises at least one polyester polyol (P1) which is obtainable by reacting an aliphatic dicarboxylic acid having 2 to 12 carbon atoms and a mixture (M1) comprising propane-1,3-diol and a further diol (D1) having 2 to 12 carbon atoms, preferably butane-1,4-diol. The present invention also relates to a preparation process for such thermoplastic polyurethanes and also to the use of a thermoplastic polyurethane according to the invention or of a thermoplastic polyurethane obtainable or obtained by a process according to the invention for the production of extrusion products, films and shaped bodies or for the production of polymer compositions. 1. A thermoplastic polyurethane , obtainable or obtained by reacting at least the following components (i) to (iii):(i) a polyisocyanate composition comprising at least one polyisocyanate,(ii) at least one chain extender, and(iii) at least one polyol composition,wherein the polyol composition comprises at least one polyester polyol (P1) which is obtainable by reacting an aliphatic dicarboxylic acid having 2 to 12 carbon atoms and a mixture (M1) comprising propane-1,3-diol and a further diol (D1) having 2 to 12 carbon atoms.2. The thermoplastic polyurethane of claim 1 , wherein the diol (D1) is selected from the group consisting of ethylene glycol claim 1 , butane-1 claim 1 ,4-diol and hexane-1 claim 1 ,6-diol.3. The thermoplastic polyurethane of claim 1 , wherein the diol (D1) is butane-1 claim 1 ,4-diol.4. The thermoplastic polyurethane of claim 1 , wherein the aliphatic dicarboxylic acid is adipic acid.5. The thermoplastic polyurethane of claim 1 , wherein the mixture (M1) comprises propane-1 claim 1 ,3-diol and the diol (D1) in a ratio in a range of from 3:1 ...

POLYCARBONATE COPOLYMERS, ARTICLES FORMED THEREFROM, AND METHODS OF MANUFACTURE

A polycarbonate copolymer comprises aromatic carbonate units; optionally siloxane units; and resorcinol arylate ester units derived from a resorcinol composition having a hydroquinone content of 50 to 1200 parts per million, a catechol content of 5 to 29 parts per million, and a phenol content of 0 to 2400, each as determined by high performance liquid chromatography, and further comprising an acid stabilizer. 1. A polycarbonate copolymer comprising:aromatic carbonate units;optionally siloxane units; and a hydroquinone content of 50 to 1200 parts per million,', 'a catechol content of 5 to 29 parts per million, and', 'a phenol content of 0 to 2400, each as determined by high performance liquid chromatography, and', 'an acid stabilizer., 'resorcinol arylate ester units derived from a resorcinol composition having'}3. The polycarbonate copolymer of claim 1 , wherein an unmolded powder sample of the polycarbonate copolymer has a glass transition temperature of 139° C. or higher determined by differential scanning calorimetry (DSC) as per ASTM D3418 with a 10° C./min heating rate.4. The polycarbonate copolymer of claim 1 , wherein a molded sample of the polycarbonate copolymer powder has a yellowness index of less than 8.5 as measured by ASTM D1925 on a 3.2 mm thick plaque.5. The polycarbonate copolymer of claim 1 , wherein a powder sample of the polycarbonate copolymer has a fluorescent emission intensity at 450 nm of less than 1.2 lumens*sec after excitation at 375 nm as determined by high performance liquid chromatography.10. The polycarbonate copolymer of claim 1 , wherein the stabilizer is a mineral acid or an organic acid claim 1 , wherein the organic acid stabilizer is a Ccarboxylic acid claim 1 , or a Ccarboxylic acid claim 1 , or a Ccarboxylic acid claim 1 , or a carboxylic acid derivative of any of the foregoing.11. The polycarbonate copolymer of claim 10 , wherein the organic acid stabilizer is a hydroxy-substituted carboxylic acid claim 10 , a lactone claim ...

Light-stable elastomeric polyurethane mouldings and process for the production thereof

纤维增强成形材料和使用其的成形品

本发明提供一种纤维增强成形材料，其以乙烯基酯(A)、闪点为100℃以上的不饱和单体(B)、多异氰酸酯(C)、聚合引发剂(D)、及纤维长2.5mm～50mm的碳纤维(E)作为必需原料，所述乙烯基酯(A)为环氧当量为180～500范围的环氧树脂(a1)和(甲基)丙烯酸(a2)的反应物，其中，所述乙烯基酯(A)与所述不饱和单体(B)的质量比((A)/(B))为40/60～85/15的范围，所述多异氰酸酯(C)的异氰酸酯基(NCO)与所述乙烯基酯(A)的羟基(OH)的摩尔比(NCO/OH)为0.25～0.85的范围。该纤维增强成形材料可获得成形操作时的操作环境、处理性及成形性优异、外观和弯曲强度等各种物性优异的成形品，因此能够合适地用于汽车构件等。

Compositions for forming poly(oxazolidone/urethane) thermosets and products therefrom

Reaction of a diepoxide with a mono-, or, preferably, dicarboxylic acid yields a prepolymer having both hydroxy and epoxy groups. This prepolymer, when reacted with a polyisocyanate, yields a poly(oxazolidone/urethane) thermoset composition which is substantially free of isocyanurate linkages. The thermoset contains oxazolidone linkages in its backbone which are separated from one another by ester linkages. Urethane linkages are present in side chains attached to the polymer backbone of the thermoset.

Window interlayer with sound attenuation properties

The present invention discloses a method for forming a laminated window. The method includes: a) assembling a mold between two plies that make up a laminated window; b) filling the mold with a reaction mixture having: (1) at least one chain extender; (2) at least one polyether polyol having a molecular weight of approximately 1,000; and (3) at least one aliphatic polyisocyanate; and c) curing the reaction mixture.

process for preparing a polyisocyanate-based polymer

Ethylene/alpha-olefin copolymer having excellent processibility

본 발명은 가공성이 우수한 에틸렌/알파-올레핀 공중합체에 관한 것이다. 본 발명에 따른 에틸렌/알파-올레핀 공중합체는, 가공성이 우수하여, injection molding 방법으로 제품을 제조하는데 적용할 수 있다. The present invention relates to an ethylene / alpha-olefin copolymer having excellent processability. The ethylene / alpha-olefin copolymer according to the present invention has excellent processability and can be applied to the production of products by an injection molding method.

INTERNAL MOLDED COMPOSITION, CONTAINING REACTION SYSTEM, PROCESS TO PRODUCE MOLDED ITEMS AND SUCH ITEM.

Se provee una composición desmoldante interna que comprende (a) un ácido carboxílico y (b) un compuesto seleccionado del grupo formado por un poliéstergraso, un éster de ácido graso y una amida grasa. An internal mold release composition is provided comprising (a) a carboxylic acid and (b) a compound selected from the group consisting of a fatty polyester, a fatty acid ester, and a fatty amide.

Method for setting usage conditions of polymerization catalyst, method for setting polymerization conditions, method for manufacturing optical materials

本発明の重合触媒の使用条件設定方法は、重合反応性化合物と、所定量の重合触媒と、を含む組成物の保温後の残存官能基由来の物性値を取得する物性取得工程Ｓ１０と、物性値から残存官能基率を算出する残存官能基率算出工程Ｓ２０と、残存官能基率から、反応速度式に基づいて反応速度定数を算出する反応速度定数算出工程Ｓ３０と、前記反応速度定数から、アレニウスプロットにより活性化エネルギーと頻度因子とを算出するフィッティング工程Ｓ４０と、前記重合触媒が、前記活性化エネルギーが所定の条件を満たすか否か判別する重合触媒選定工程Ｓ５０と、頻度因子から近似式を設定する近似式設定工程Ｓ６０と、前記重合反応性化合物に対する添加範囲を設定する触媒添加範囲設定工程Ｓ７０と、を含む。 The method for setting the conditions for using the polymerization catalyst of the present invention includes a physical property acquisition step S10 for acquiring a physical property value derived from a residual functional group after heat retention of a composition containing a polymerization reactive compound and a predetermined amount of the polymerization catalyst, and physical properties. From the residual functional group ratio calculation step S20 for calculating the residual functional group ratio from the value, the reaction rate constant calculation step S30 for calculating the reaction rate constant from the residual functional group rate based on the reaction rate equation, and the reaction rate constant. A fitting step S40 for calculating the activation energy and the frequency factor by the Arenius plot, a polymerization catalyst selection step S50 for determining whether or not the polymerization catalyst satisfies a predetermined condition, and an approximate expression from the frequency factor. Includes an approximate expression setting step S60 for setting the above, and a catalyst addition range setting step S70 for setting the addition range for the polymerization-reactive compound.

Reaction injection molding of polycycloolefins using zwitterionic catalysts

본 발명은 쯔비터이온 화합물 촉매를 이용한 다중 고리 올레핀의 반응사출 성형방법에 관한 것으로서, 더욱 상세하게는 다중 고리 올레핀 단량체와 쯔비터이온 전이 금속 화합물 전구체를 포함하는 반응물(A)와, 다중 고리 올레핀 단량체와 루이스 산을 포함하는 반응물(B)를 하나의 금형에서 함께 혼합함으로써, 사용된 쯔비터이온 촉매가 다중 고리 올레핀 단량체에 쉽게 용해되며, 동시에 기존에 사용되던 촉매의 음이온이 촉매 주위를 맴돌면서 다중 고리 올레핀 단량체의 접근을 방해하던 입체 장애의 문제점을 효율적으로 억제할 수 있으며, 쯔비터이온 촉매의 생성과 동시에 중합을 개시하여 일정한 형태를 갖는 중합체를 제조할 수 있는 쯔비터이온 화합물 촉매를 이용한 다중 고리 올레핀의 반응사출성형방법에 관한 것이다. The present invention relates to a reaction injection molding method for a multicyclic olefin using a zwitterion compound catalyst, and more particularly, a reactant (A) containing a multicyclic olefin monomer and a zwitterion transition metal compound precursor, and a multicyclic olefin. By mixing together the reactant (B) containing the monomer and the Lewis acid in one mold, the zwitterion catalyst used is easily dissolved in the polycyclic olefin monomer, while the anions of the catalyst used in the past revolve around the catalyst. The problem of steric hindrance, which hindered the access of the polycyclic olefin monomer, can be effectively suppressed, and a zwitterionic compound catalyst can be prepared by producing a zwitterion catalyst and simultaneously initiating polymerization to produce a polymer having a certain form. The present invention relates to a reaction injection molding method of a polycyclic olefin.

含有聚合碳二亚胺、环氧化合物和基于聚酯的聚合物的组合物、其生产及其用途

本发明涉及含有聚合碳二亚胺、环氧化合物和基于聚酯的聚合物的组合物、其生产及其用途。本发明的组合物耐水解、有生产成本效益并且显示出减少的排放。

ポリウレタンの製法

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

중합체성 카보다이이미드, 에폭사이드 및 폴리에스터계 중합체를 함유하는 조성물, 이들의 제법 및 용도

본 발명은 중합체성 카보다이이미드, 에폭사이드 및 폴리에스터계 중합체를 함유하는 조성물, 이의 제법 및 용도에 관한 것이다.

Thermoplastic elastomer resin composition

열가소성 엘라스토머 수지 및 반응성 첨가제로서 1 이상의 이소시아누레이트기를 함유한 화합물을 포함하는 열가소성 엘라스토머 수지 조성물 및 이를 포함하는 성형품이 제시된다. A thermoplastic elastomer resin composition comprising a thermoplastic elastomer resin and a compound containing at least one isocyanurate group as a reactive additive and a molded article comprising the same are provided.

Use condition setting method for polymerization catalyst, polymerization condition setting method, and method for producing optical material

A method for setting conditions for use of a polymerization catalyst of the present invention includes a physical property acquiring step S10 of acquiring a physical property value derived from remaining functional groups after maintaining a temperature of a composition including a polymerization-reactive compound and a predetermined amount of a polymerization catalyst, a remaining functional group ratio calculating step S20 of calculating a remaining functional group ratio from the physical property value, a reaction rate constant calculating step S30 of calculating a reaction rate constant based on a reaction rate equation from the remaining functional group ratio, a fitting step S40 of calculating an activation energy and a frequency factor from the reaction rate constant using an Arrhenius plot, a polymerization catalyst selecting step S50 of determining whether or not the activation energy satisfies a predetermined condition for the polymerization catalyst, an approximation equation setting step S60 of setting an approximation equation from the frequency factor, and a catalyst addition range setting step S70 of setting an addition range with respect to the polymerization-reactive compound.

内部離型用組成物

(57)【要約】 （ａ）カルボン酸と、（ｂ）脂肪酸ポリエステル、脂肪酸エステル、および脂肪酸アミドからなる群から選ばれる化合物とを含む内部離型系が提供されている。

Tiger stripe modifier

타이거 스트라이프 개선제는, 프로필렌 단독중합체가 10 초과 내지 300 g/10min 범위의 용융 유동 속도 MFR 2 (230℃)를 갖고; 이종상 폴리프로필렌 조성물의 크실렌 저온 가용성 분획이 2.5 초과 내지 11.0 미만 dl/g의 범위의 고유 점도를 갖고; 이종상 폴리프로필렌 조성물의 크실렌 저온 가용성 분획의 공단량체 함량이 10.0 내지 25.0 중량% 범위이고; 추가로 이종상 폴리프로필렌 조성물이 하기 부등식 (I): 0.30 ≥ (0.241 × C) - (1.14 × IV) (I)을 충족시키며, 여기서 C는 이종상 폴리프로필렌 조성물 (HECO1)의 크실렌 저온 가용성 (XCS) 분획의 공단량체 함량이고, IV는 이종상 폴리프로필렌 조성물 (HECO1)의 저온 가용성 (XCS) 분획의 고유 점도인, 0.5 내지 20 g/10min의 범위의 용융 유동 속도 MFR 2 (230℃)를 갖고 프로필렌 단독중합체 및 엘라스토머 프로필렌 공중합체를 포함하는 이종상 폴리프로필렌 조성물이다. The tiger stripe improver is characterized in that the propylene homopolymer has a melt flow rate MFR 2 (230 캜) in the range of from more than 10 to 300 g / 10 min; The xylene low temperature soluble fraction of the diisocyanate polypropylene composition has an intrinsic viscosity in the range of greater than 2.5 and less than 11.0 dl / g; Wherein the comonomer content of the xylene low-temperature soluble fraction of the diisocyanate polypropylene composition is in the range of 10.0 to 25.0 wt%; Wherein the heterophasic polypropylene composition satisfies the following inequality (I): 0.30 ≥ (0.241 × C) - (1.14 × IV) (I) where C is the xylene low temperature solubility (XCS) of the heterophasic polypropylene composition (HECO1) IV has a melt flow rate MFR 2 (230 캜) in the range of 0.5 to 20 g / 10 min, which is the intrinsic viscosity of the low-temperature soluble (XCS) fraction of the heterogeneously polypropylene composition (HECO 1) Polymer and an elastomeric propylene copolymer.

Novel compositions and process

Polyurethanes having a two phase morphology and characterized by high impact strength and, optionally, high modulus are obtained by reaction of 4,4'-methylenebis(phenyl isocyanate) and modified forms thereof with an aliphatic glycol extender and a blend of at least two polyoxypropylene-polyoxyethylene polyols both of which have average functionalities in the range of 2 to 4, one of which has a molecular weight in the range of about 3000 to 10,000 and contains at least 23 percent by weight of ethylene oxide residues and the other has a molecular weight in the range of about 750 to about 2000 and contains at least 45 percent by weight of ethylene oxide. The two or more such polyols are employed in proportions such that the aliphatic glycol extender is completely miscible with said polyols if blended together.

Polyurethane foam by reaction injection molding

본 발명은 폴리우레탄우레아 분산액을 포함하는 발포체의 제조 방법을 제공한다. 이러한 발포체는 통상의 폴리우레탄 발포체에 비해 증진된 가요성 및 내압축성을 갖는다. 이러한 발포체는 또한 반응 사출 성형 공정에 의해 제조될 수 있다. 방법은 (a) 1종 이상의 폴리올, 사슬 연장제 조성물 및 발포제를 포함하는 제1 조성물을 제공하고; (b) 디이소시아네이트, 캡핑된 글리콜 및 그의 조합 중 하나 이상을 포함하는 제2 조성물을 제공하고; (c) 제1 조성물과 제2 조성물을 혼합하여 반응 혼합물을 가열된 몰드 내에 형성하고; (d) 반응 혼합물이 폴리우레탄 발포체를 형성하도록 하는 것에 의해 성형 폴리우레탄 발포체 물품을 제조하는 것을 포함하며, 여기서 제1 조성물은 (i) 1종 이상의 아민 화합물을 포함하는 사슬 연장제 조성물; (ii) 폴리우레탄우레아 수분산액을 포함하는 발포제; 및 (iii) (i)과 (ii)의 조합 중 하나를 포함한다. The present invention provides a method for producing a foam comprising a polyurethaneurea dispersion. These foams have improved flexibility and compression resistance compared to conventional polyurethane foams. Such foams can also be produced by reaction injection molding processes. The method comprises (a) providing a first composition comprising at least one polyol, a chain extender composition and a blowing agent; (b) providing a second composition comprising at least one of a diisocyanate, a capped glycol, and combinations thereof; (c) mixing the first composition and the second composition to form a reaction mixture in a heated mold; (d) making a molded polyurethane foam article by causing the reaction mixture to form a polyurethane foam, wherein the first composition comprises: (i) a chain extender composition comprising at least one amine compound; (ii) a foaming agent comprising an aqueous dispersion of polyurethaneurea; And (iii) a combination of (i) and (ii).

Process for the preparation of articles having thin walls from thermoplastic polyurethanes or polyurethane urea by extrusion

光学材料的制造方法

本发明的光学材料的制造方法包括以下工序：制备硫醇化合物(A)与咪唑系固化催化剂(B)的混合液的工序，所述硫醇化合物(A)为具有1个以上硫醚键及/或1个以上酯键的二官能以上的硫醇化合物；将所述混合液与异氰酸酯化合物(C)混合而制备光学材料用聚合性组合物的工序，所述异氰酸酯化合物(C)包含至少1种二官能以上的脂环族异氰酸酯化合物(c1)及/或二官能以上的脂肪族异氰酸酯化合物(c2)；将所述光学材料用聚合性组合物注入到铸模内的工序；和在所述铸模内将所述光学材料用聚合性组合物聚合固化的工序。

Resin compositions for improving clarity and thermal resistance of stereocomplexed polylactic acid

Disclosed is a resin composition which has transparency and heat resistance at the same time by having heat resistance of a polylactic acid stereo complex resin and optical properties of polymethacrylate at the same time as a biodegradable resin composition comprising an L-type polylactic acid resin and a D-type polylactic acid resin and comprising a mixture of one or more polymethacrylates selected from a polymethacrylate (PMMA) based single polymer or copolymer with optical properties and a stereo complex polylactic acid in which the L-type polylactic acid resin and the D-type polylactic acid resin are mixed to improve transparency. A polylactic acid stereo complex resin composition having excellent transparency and heat resistance of the present invention comprises an L-type polylactic acid, a D-type polylactic acid, and a polymethacrylate (PMMA) resin, wherein the polylactic acid stereo complex resin has a melting point of 200 to 240C, is crystallized (annealed) at 100 to 120C for 10 to 120 seconds to improve degree of crystallinity, has a heat deflection temperature (HDT) of 80 to 140C, and has a haze of 20% or less.

Poly(oxypropylene) glycol based polyurethane elastomers suitable for automotive body parts

Flexible automobile exterior body parts are molded from a polyurethane elastomer prepared from a reaction mixture comprising: A. A POLYMERIC DIOL SELECTED FROM THE GROUP CONSISTING OF POLY(OXYPROPYLENE) GLYCOL AND ETHYLENE OXIDE ''''TIPPED'''' POLY(OXYPROPYLENE) GLYCOL OF MOLECULAR WEIGHT OF FROM ABOUT 1750 TO ABOUT 2500; B. METHYLENEBIS(4-PHENYLISOCYANATE); C. 1,4-BUTANEDIOL. The invention also relates to this polyurethane elastomer.

Preparation of a novel aliphatic diisocyanate from styrene

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POLYMERIC COMPOSITION CONTAINING THERMOPLASTIC POLYURETHANE AND POLYOLETHINE

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 141 610 A (51) МПК C08L 75/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017141610, 25.04.2016 (71) Заявитель(и): БАСФ СЕ (DE) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): САКАМОТО, Кодзи (JP) 30.04.2015 EP 15166017.2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 30.11.2017 R U (43) Дата публикации заявки: 31.05.2019 Бюл. № 16 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2016/173961 (03.11.2016) A Адрес для переписки: 105064, Москва, а/я 88, ООО "Патентные поверенные Квашнин, Сапельников и партнеры" R U (57) Формула изобретения 1. Полимерная композиция, содержащая: A) от 60 до 85 мас. частей термопластичного полиуретана; и B) от 15 до 40 мас. частей полиолефина, где мас. части термопластичного полиуретана А) и мас. части полиолефина В) составляют в сумме 100 мас. частей; и дополнительно содержащая C) от 1 до 15 мас. частей гидрогенизированного блочного сополимера, полученного из винилового ароматического мономера и сопряженного диенового мономера, на основе 100 мас. частей как общего количества термопластичного полиуретана А) и полиолефина В), где гидрогенизированный блочный сополимер С) представляет собой аминмодифицированный гидрогенизированный блочный сополимер, и где полиолфен В) представляет собой полиэтилен. 2. Полимерная композиция по п. 1, содержащая: A) от 65 до 75 мас. частей термопластичного полиуретана; и B) от 20 до 35 мас. частей полиолефина, где мас. части термопластичного полиуретана А) и мас. части полиолефина В) составляют в сумме 100 мас. частей; и дополнительно содержащая, C) от 5 до 10 мас. частей гидрогенизированного блочного сополимера, на основе Стр.: 1 A 2 0 1 7 1 4 1 6 1 0 (54) ПОЛИМЕРНАЯ КОМПОЗИЦИЯ, СОДЕРЖАЩАЯ ТЕРМОПЛАСТИЧНЫЙ ПОЛИУРЕТАН И ПОЛИОЛЕФИН 2 0 1 7 1 4 1 6 1 0 EP 2016/059122 (25.04.2016) A 2 0 1 7 1 4 1 6 1 0 R U A 2 0 1 7 1 4 1 6 1 0 R U 100 мас. частей как общего количества ...

Thermoplastic polyurethane and composition thereof

FIELD: chemistry. SUBSTANCE: present invention relates to thermoplastic polyurethane composition for making moulded articles. Composition contains thermoplastic polyurethane and 1–20 pts.wt of a cross-linking agent, in form of an organic peroxide, a silane compound or a cross-linking agent. Thermoplastic polyurethane is obtained by reacting organic diisocyanate, polymer polyol and chain extender. Polymer polyol has number-average molecular weight 1,000–5,000. Chain extender comprises a linear diol and a diol, containing an alkyl group in side chain, at a ratio of 97/3–60/40. Content of nitrogen atoms in thermoplastic polyurethane varies from 1.5 to 4.0 wt%. EFFECT: thermoplastic polyurethane, used in said composition has excellent transparency, cold resistance, wear resistance and mechanical properties, and exhibits low rate of thickening even when melt is used for a long period of time. 17 cl, 6 tbl, 26 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 615 137 C2 (51) МПК C08G 18/65 (2006.01) C08G 18/66 (2006.01) C08L 75/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2015107832, 05.08.2013 (24) Дата начала отсчета срока действия патента: 05.08.2013 (72) Автор(ы): ТАНАКА Юсуке (JP) (73) Патентообладатель(и): КУРАРЕЙ КО., ЛТД. (JP) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: US 20030139509 A1, 24.07.2003. JP Приоритет(ы): (30) Конвенционный приоритет: 06.08.2012 JP 2012-173678; 29.11.2012 JP 2012-261216 (43) Дата публикации заявки: 27.09.2016 Бюл. № 27 (45) Опубликовано: 04.04.2017 Бюл. № 10 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 06.03.2015 (86) Заявка PCT: JP 2013/071162 (05.08.2013) 2 6 1 5 1 3 7 8283368 A, 29.10.1996. JP 07179558 A, 18.07.1995. SU 1297733 A3, 15.03.1987. SU 1611212 A3, 30.11.1990. RU 2263123 C2, 27.10.2005. R U 04.04.2017 2 6 1 5 1 3 7 R U WO 2014/024847 (13.02.2014) Адрес для переписки: 129090, Москва, ул. Б. ...

Composite structure

A composite structure comprising a resinous component that is adhered to a surface of a metal component is provided. The resinous component is formed from a polymer composition that comprises a polyarylene sulfide, inorganic fibers, and an impact modifier. The inorganic fibers have an aspect ratio of from about 1.5 to about 10.

Viscoelastic sound insulating foam having an adhesive surface and method of using the same

Thermoplastic polyurethane elastomers and polyurea elastomers made using low unsaturation level polyols prepared with double metal cyanide catalysts

본 발명은 (a) 분자량이 약 2,000 내지 약 20,000이고 말단 그룹의 불포화도가 0.04밀리당량/폴리올g 이하인 폴리올(여기서, 폴리올은 복합 금속 시아나이드 촉매의 존재하에서 제조된다)을 제조하는 단계, (b) 폴리올을 디이소시아네이트와 반응시켜 이소시아네이트-말단 예비중합체를 제조하는 단계 및 (c) 이소시아네이트-말단 예비중합체를 금형 또는 압출기 내에서 이작용성 이소시아네이토-반응성 쇄 연장제와 반응시켜 쇼어 A 경도가 약 10 내지 약 70임을 특징으로 하는 연질 탄성중합체를 제조하는 단계를 특징으로 하여, 열가소성 탄성중합체를 제조하는 방법에 관한 것이다. 또한, 원-쇼트(one-shot) 기술을 사용하는 방법에 의해 제조된 탄성중합체에 관한 것이다. (A) preparing a polyol having a molecular weight of about 2,000 to about 20,000 and an unsaturation of the terminal group of 0.04 milliquivalents / g of polyol or less, wherein the polyol is prepared in the presence of a composite metal cyanide catalyst, (b ) Reacting a polyol with a diisocyanate to produce an isocyanate-terminated prepolymer and (c) reacting the isocyanate-terminated prepolymer with a bifunctional isocyanato-reactive chain extender in a mold or extruder to reduce the Shore A hardness. To a soft elastomer, characterized in that from about 10 to about 70, to a method of making a thermoplastic elastomer. It also relates to elastomers produced by methods using one-shot technology.

Composite structure

A composite structure comprising a resinous component that is adhered to a surface of a metal component is provided. The resinous component is formed from a polymer composition that comprises a polyarylene sulfide, inorganic fibers, and an impact modifier. The inorganic fibers have an aspect ratio of from about 1.5 to about 10.

Polyester compositions

본 발명은 열 전도성을 개선하기 위한 1종 이상의 충전제, 바람직하게는 산화알루미늄, 질화붕소 또는 규산알루미늄, 특히 바람직하게는 규산알루미늄, 특히 바람직하게는 삼사정계-피나코이드형 결정 구조를 갖는 규산알루미늄을 포함하는, 증가한 글로우-와이어 내성을 갖는 폴리에스테르-기재 조성물, 그의 제법 및 그로부터 제조되는 전기 및 전자공학 시장용 제품, 바람직하게는 가정용 장치, 및 전기 및 전자공학 시장용 제품, 바람직하게는 가정용 장치의 글로우-와이어 내성을 개선하기 위한, 산화알루미늄, 질화붕소 또는 규산알루미늄, 특히 바람직하게는 규산알루미늄, 특히 바람직하게는 삼사정계-피나코이드형 결정 구조를 갖는 규산알루미늄의 용도에 관한 것이다. The present invention relates to at least one filler for improving thermal conductivity, preferably aluminum oxide, boron nitride or aluminum silicate, particularly preferably aluminum silicate, particularly preferably aluminum silicate having a triclinic-pinacoid crystal structure. A polyester-based composition having increased glow-wire resistance comprising It relates to the use of aluminum oxide, boron nitride or aluminum silicate, particularly preferably aluminum silicate, particularly preferably having a triclinic-pinacoid crystal structure, for improving the glow-wire resistance of a device.

Processes for in-mold coating using a multi-cavity mold and substrates coated thereby

플라스틱 기판의 성형-금형 코팅 방법이 개시되어 있다. 상기 방법은 (a) 적어도 2개의 공동을 포함하는 금형의 제1 금형 공동 내에서 플라스틱 기판을 성형하여 성형 플라스틱 기판을 형성하는 단계; (b) 성형 플라스틱 기판을 금형의 제2 금형 공동 내로 도입하는 단계; (c) 기판을 코팅하기 위해, 성형 플라스틱 기판을 함유하는 제2 금형 공동 내로 코팅 조성물을 도입하는 단계이며, 상기 코팅 조성물은 (i) 이소시아네이트-반응성 기를 포함하는 중합체, 및 (ii) 폴리이소시아네이트를 포함하는 것인 단계; (d) 제2 금형 공동 내 조성물을 경화시키는 단계; 및 (e) 금형 공동을 개방하는 단계를 포함한다. A method for mold-mold coating of a plastic substrate is disclosed. The method comprises the steps of (a) molding a plastic substrate in a first mold cavity of a mold comprising at least two cavities to form a molded plastic substrate; (b) introducing the molded plastic substrate into a second mold cavity of the mold; (c) introducing a coating composition into a second mold cavity containing a molded plastic substrate to coat the substrate, the coating composition comprising (i) a polymer comprising isocyanate-reactive groups, and (ii) a polyisocyanate; comprising the steps of; (d) curing the composition in the second mold cavity; and (e) opening the mold cavity.

Light-resistant molded elastomeric polyurethane product and method for fabrication thereof

FIELD: polymer materials. SUBSTANCE: invention provides microporous or nonporous light-resistant elastomeric, flexible or semiflexible, molded polyurethane products having density at least 900 kg/cu.m and modulus of elasticity according to ASTM D790 between 5 and 300 MPa. Products are fabricated from reaction mixture employing reactive jet molding, wherein (i) isocyanate composition containing mixture of isophoronediisocyanate trimer/monomer with NCO content between 24.5-34 wt. % interacts with (ii) isocyanate-reactive components containing: polyether-polyol with terminal OH groups having nominal functionality 2-4 and average equivalent weight 800-4000; at least one chain-elongation reagent having only aliphatic or alicyclic OH groups as functions; and at least one amine initiator, in presence of (iii) at least one catalyst component selected from organolead(II), organobismuth(III) and organotin(IV) catalysts, (iv) at least one pigment, and (v) at least one antioxidant absorbing UV rays. EFFECT: accelerated demolding and improved mechanical properties of products. 47 cl, 3 tbl, 17 ex оОтУ6бгосс ПЧ сэ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК” ВИ “” 2 201 940 ' 13) С2 С 08 С 18/22, 18/66, 18/79 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 99108990/04 , 01.10.1997 (24) Дата начала действия патента: 01.10.1997 (30) Приоритет: 01.10.1996 ЕР 96202738.9 (46) Дата публикации: 10.04.2003 (56) Ссылки: ЦЗ 4772639 А, 20.09.1988. 9$ 5502147 А, 26.03.1996. 4$ 4292411 А, 29.09.1981. 0$ 4305991 А, 15.12.1981. ЗЧ 1275018 А\Л, 07.12.1986. (85) Дата перевода заявки РСТ на национальную фазу: 05.05.1999 (86) Заявка РСТ: ВЕ 97/00112 (01.10.1997) (87) Публикация РСТ: М/О 98/14492 (09.04.1998) (98) Адрес для переписки: 129010, Москва, ул. Б. Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. Н.Г. Лебедевой, рег.№ 0112 (71) Заявитель: РЕКТИСЕЛЬ (ВЕ) (72) Изобретатель: ДЮ ПРЕ Эдди (ВЕ), КОППЕН Пьер (ВЕ) (73) ...

Process for forming mold releasable polyurethane, polyurea and polyureaurethane resins using isocyanate reactive polysiloxanes as internal mold release agents

Polyurethane, polyurea and polyureaurethane resins having improved mold release properties are made by including with the reactive ingredients certain internal mold release agents which are polysiloxane polymers having pendant organic groups which contain at least one hydroxyl, amino or mercapto group.

Patent JPH0340731B2

Multi-layer golf ball

Disclosed herein is a multi-layer golf ball having a soft outer cover. The golf ball has an inner cover layer with a Shore D hardness of 60 or more, and an outer cover with a Shore D hardness of 55 or less, and more preferably 50 or less. In a particularly preferred form of the invention, the outer cover comprises one or more polyurethane materials. The golf ball of the invention has exceptionally soft feel and high spin rates on short shots of 80 yards or less and, particularly, 40 yards or less, while maintaining good distance and average spin on full shots.

Multi-layer golf ball

Disclosed herein is a multi-layer golf ball having a soft outer cover. The golf ball has an inner cover layer with a Shore D hardness of 60 or more, and an outer cover with a Shore D hardness of 55 or less, and more preferably 50 or less. In a particularly preferred form of the invention, the outer cover comprises one or more polyurethane materials. The golf ball of the invention has exceptionally soft feel and high spin rates on short shots of 80 yards or less and, particularly, 40 yards or less, while maintaining good distance and average spin on full shots.

Golf ball which includes fast-chemical-reaction-produced component and method of making same

Disclosed herein is a golf ball comprising one or more fast-chemical-reaction-produced components, such as a component which comprises a reaction injection molded polyurethane material. A process of making a golf ball by forming at least one core and/or cover component of the ball by mixing two or more reactants that react and form a reaction product with a flex modulus of 1 to 310 kpsi, with a setting time of about 30 seconds or less, the component having a thickness of at least 0.01 inches and a mold release time of 2 minutes or less is also disclosed. In one preferred form of the invention, excess polyurethane from forming golf ball covers is recycled by using it to form golf ball cores.

Golf ball having dual core and thin polyurethane cover formed by RIM

The present invention is directed to a golf ball comprising a dual core component, an inner cover layer and an outer cover layer. The dual core comprises an interior spherical center component formed from a thermoset material, a thermoplastic material, or combinations thereof. The dual core also comprises a core layer disposed about the center component, formed from a thermoset material, a thermoplastic material, or combinations thereof. The one or more polyurethane layers are preferably formed via a reaction injection molding (RIM) technique. The inner cover layer is relatively soft and preferably comprises an ionomer or ionomer blend. The outer cover layer is relatively hard and comprises a hard polyurethane. The resulting multi-layered golf ball of the present invention provides for enhanced distance without sacrificing playability or durability when compared to known multi-layer golf balls.

Polyurethane covered golf balls

Disclosed herein is a golf ball comprising a polyurethane component formed by the reaction of an isocyanate, and a polyether polyol comprising homopolymers of ethylene oxide or propylene oxide or copolymers thereof, and a curing agent/chain extender. Another preferred form of the invention is directed to a golf ball cover comprising an isocyanate component and an ethylene/propylene oxide polyether polyol polyurethane component that is formed by reaction injection molding.

Apparatus for making a golf ball

An apparatus for making a golf ball is disclosed. The apparatus is a molding assembly for making a golf ball which includes a mold body that defines a molding cavity. The molding cavity is adapted to accommodate and preferably retain a golf ball core during a molding operation of one or more layers about the core. The molding assembly includes at least one material flow inlet, at least one material flow channel extending between and providing fluid communication with a material flow inlet and the molding cavity. At least one portion of the material flow channel has a plurality of bends and at least one branching intersection adapted to promote turbulence in a liquid flowing therethrough. A method of making a golf ball is also disclosed. A golf ball made from the disclosed molding apparatus and/or process is also disclosed.

Golf ball formed from a polyisocyanate copolymer and method of making same

Disclosed herein is a method of making a golf ball by mixing a polyisocyanate copolymer and at least one other reactant, such as a polyol, to form a reaction product and reaction injection molding the reaction product to form at least one of a core and cover component. Preferably, the polyisocyanate copolymer includes an aromatic polyisocyanate and an aliphatic polyisocyanate. Most preferably, the polyisocyanate copolymer includes a copolymer of toluene diisocyanate and hexamethylene diisocyanate.

Golf products produced by a stoichiometrically imbalanced RIM system

Disclosed herein are golf products, such as golf balls and/or components thereof, including the product of a fast-chemical-reaction mixture comprising a polyol and an isocyanate. The component is formed by reaction injection molding the reaction mixture. In the reaction mixture, the stoichiometry of the reactants is imbalanced.

Thermoplastic polyurethane elastomers and polyurea elastomers

본 발명은 (a) 분자량이 약 2,000 내지 약 8,000이며 말단 그룹의 불포화도가 폴리올 1g당 0.02meq 이하인 폴리올을 이중 금속 시아나이드 촉매의 존재하에서 제조하는 단계, (b) 폴리올을 디이소시아네이트와 반응시켜 이소시아네이트 종결 초기 중합체를 제조하는 단계 및 (C) 이소시아네이트 종결 초기 중합체를 금형 또는 압출기 속에서 2작용성 이소시아네이토 반응성 쇄연장제와 반응시켜, 쇼어 A 경도가 약 50이고 쇼어 D 경도가 약 65임을 특징으로 하는 엘라스토머를 제조하는 단계를 포함함을 특징으로 하여, 열가소성 엘라스토머를 제조하는 방법에 관한 것이다. 또한, 원-숏 기술을 사용하여 본 방법에 의해 제조된 엘라스토머가 청구되어 있다.