Abstract: The present invention relates to a method for manufacturing processed cork chips, and a floor construction method using the same. The processed cork chips are manufactured by the method, including: crushing and drying cork chips; adding polyurea to the dried cork chips to prepare a mixture; heating the mixture to cure the same; and cooling the cured mixture. Further, the floor construction method includes: laying the processed cork chips on the surface of a floor formed of concrete, a water-permeable base layer or crushed stone with a solidified top surface; and flattening the processed cork chips and pressing the same by means of a roller at a fixed temperature.

Abstract: A thermoplastic polyurethane can be obtained by a process involving a reaction of a thermoplastic polyester (PE-1) with a diamine (D1), to obtain a composition (Z1) containing an amide (PA-1), and a reaction of the obtained composition (Z1) with an isocyanate composition (I1), containing at least one polyisocyanate, and a polyol composition (P1). The diamine (D1) has a molecular weight in the range from 50 g/mol to 700 g/mol. A process can produce such a thermoplastic polyurethane, and shaped articles can be made containing the thermoplastic polyurethane.

Abstract: The present disclosure generally relates to curable precursor compositions for a polyurethane adhesive. In one exemplary embodiment, the composition includes (a) an isocyanate component comprising one or more isocyanates and (b) an isocyanate-reactive component comprising (bi) one or more triols selected from polyether triols, polyester triols, polyether-polyester triols and combinations thereof; (bii) one or more tetrols, selected from polyether polyols, polyester polyols, polyether-polyester polyols; and wherein the composition further comprises a catalyst system capable of catalyzing the formation of polyurethanes wherein the curing catalyst system contains a combination of bismuth, zinc and zirconium salts. Also provided are polyurethane-based adhesives, methods of bonding components with the adhesives and articles containing components bonded by the adhesives.

Abstract: Two component polyurethane adhesives contain (a) at least one alkyl-substituted 4,4?-di(aminocyclohexyl)alkane wherein each cyclohexyl group is alkyl-substituted in at least one position ortho to the amino group, (b) at least one 2,4?-di(aminocyclohexyl)alkane or 2,2?-di(aminocyclohexyl)alkane, (c) a mixture of (ii) at least one alkyl-substituted 4,4?-di(aminocyclohexyl)alkane wherein each cyclohexyl group is alkyl-substituted and (ii) at least one 2,4?-di(aminocyclohexyl)alkane and/or 2,2?-di(aminocyclohexyl)alkane, or (d) a mixture of 40 to 99.9% by weight (a), (b) or (c) with 0.1 to 60% by weight of at least one unsubstituted 4,4?-di(aminocyclohexyl)alkane, The adhesives also contain one or more polyols, in which at least 50% of the hydroxyl groups are secondary hydroxyls. These adhesive provide a useful combination of long open time and excellent sag resistance.

Abstract: The present invention is directed to a polyurea coating composition formed from an amine-functional component and an isocyanate-functional component. The amine-functional component can include an aspartic ester-based amine-functional resin and a blocked primary amine. The isocyanate-functional component can include a polyisocyanate having a functionality greater than 2.0 and an isocyanate equivalent weight of greater than 300, and a silane.

Abstract: The invention relates to novel processes for controlling (extending) the pot life in polyurethane (PU) based systems that are chain-extended with diamines, preferably PU elastomers, PU adhesives, PU casting resins.

Abstract: Golf balls that have at least one layer formed from a cationic polyurea material. In particular, the compositions of the invention, which include a polymer backbone including urea linkages with cationic groups, may be formed from an isocyanate-containing component and an isocyanate-reactive component, at least one of which includes precursor cationic groups, in the presence of an alkylating, quaternizing, or ternarizing agent.

Abstract: Polyurea systems comprising: (a) an amino-functional aspartic ester of the general formula (I) wherein X represents an n-valent organic radical derived from a corresponding n-functional primary amine X(NH2)n, R1 and R2 each independently represent an organic radical having no Zerevitinov active hydrogens and n represents an integer of at least 2; and (b) an isocyanate functional prepolymer having a residual monomer content of less than 1% by weight, the prepolymer prepared by reacting: (b1) an aliphatic isocyante; and (b2) a polyol component having a number average molecular weight of ?400 g/mol and an average OH functionality of 2 to 6, wherein the polyol component comprises one or more constituents selected from the group consisting of polyester polyols, polyester-polyether polyols and mixtures thereof; processes for making the same; postoperative adhesions barriers prepared therewith and dispensing systems for such polyurea systems.

Abstract: Plasticizer free curing compositions comprising small particle size complexes of methylenedianiline and an alkali salt, e.g. a 3:1 coordination complex of MDA/alkali salt, with average diameter 60 micron or less, often 20 micron or less, e.g., 10 microns or less, dispersed in a volatile, non-polar, organic solvent are prepared. Stable one pack urethane compositions comprising the plasticizer free curing compositions and polyurethane prepolymers are prepared, which exhibit excellent storage stability and overcome many of the drawbacks encountered when using MDA complexes dispersed in plasticizers such as high boiling aromatic and alkyl di-esters.

Abstract: A polyurethaneurea system that includes in some embodiments Parts A and B reaction components for a polyurethaneurea, wherein an exemplary embodiment provides a Part A that comprises between 55 and 75 wt. % of an oligomeric polyol, between 3 and 7 wt. % of an aromatic diamine chain extender, and between 0.1 and 1.5% of a reactivity catalyst; Part B includes between 1 and 15 wt. % of a short aromatic diisocyanate and between 5 and 35 wt. % of an aromatic diisocyanate prepolymer that is the reaction product of a short aromatic diisocyanate and a diol. The polyurethaneurea system may further comprise an elastomer-surface activator comprising a second short aromatic diisocyanate and a second aromatic diisocyanate prepolymer, wherein at least one of the second diisocyanates may be the same as at least one of the diisocyanates of Part B.

Abstract: Sulfur-containing polyurea compositions comprising a polyisocyanate and a polyamine are disclosed. The polyisocyanate comprises the reaction product of reactants comprising a diisocyanate having isocyanate groups with different reactivities toward thiol groups, and a thiol-terminated sulfur-containing polymer such as a thiol-terminated polythioether polymer and/or a thiol-terminated polyformal polymer. The polyamine can be an aromatic polyamine and/or an aromatic amine-terminated polythioether adduct. The sulfur-containing polyurea compositions are useful as aerospace sealants.

Abstract: The invention relates to a polyurea preparable from a) a component A comprising a1) 5 to 40% by weight of at least one polyetheramine 1 (PEA 1), obtainable from at least one polyetherpolyol 1 (PEP 1) and at least one amine 1, where PEP 1 has an equivalent weight of ?500, a2) 30 to 90% by weight of at least one polyetheramine 2 (PEA 2), obtainable from at least one polyetherpolyol 2 (PEP 2) and at least one amine 2, where PEP 2 has an equivalent weight of >500, a3) 5 to 30% by weight of at least one amine chain extender and b) a component B, which is a prepolymer, obtainable from b1) at least one polyetherpolyol (PEP 3) and b2) at least one isocyanate.

Abstract: Golf balls that have at least one layer formed from a cationic polyurea material. In particular, the compositions of the invention, which include a polymer backbone including urea linkages with cationic groups, may be formed from an isocyanate-containing component and an isocyanate-reactive component, at least one of which includes precursor cationic groups, in the presence of an alkylating, quaternizing, or ternarizing agent.

Abstract: Two-part polyurea-urethane adhesive compositions comprising a Part A prepolymer component having an isocyanate component comprising polymeric isocyanate and an oligomer content greater than 15 weight percent, polyol having a molecular weight of about 5,000 to about 12,000 and about 20 weight percent to about 44 percent weight percent filler; and a Part B curative component comprising polyol having molecular weight of about 5,000 to about 12,000, aromatic amine, about 20 weight percent to about 44 percent weight percent filler and catalyst wherein the adhesive has an 85° C. storage modulus greater than about 20 MPa. The two-part polyurea-urethane adhesive composition can be applied to bond various substrates including composite materials and metal, including making parts for the transportation and assembly markets.

Abstract: The invention relates to a coating agent composition comprising an isocyanate-group-containing prepolymer obtained by reacting a polyol comprising a polyoxyalkylene polyol having 2-4 hydroxyl groups on average, an oxyethylene group content of 85-100% by mass based on all oxyalkylene groups (100% by mass), and an arithmetic-average molecular weight of 800-2,500 with an alicyclic isocyanate and/or an aliphatic isocyanate in the presence of an organic acid bismuth salt catalyst, the isocyanate(s) being used in such an amount as to result in an isocyanate index of 150-300. The invention can provide a coating agent composition which forms a coating film or film having moisture permeability, excellent in mechanical properties and yellowing resistance, having laundering durability and resistance to sweat deterioration, and containing no organotin compounds.

Abstract: A transparent, non elastomeric, high refractive index, impact resistant poly(thio)urethane/urea material comprising the reaction product of: a) at least one (?, ?)-diiso(thio)cyanate cycloaliphatic or aromatic polysulfide prepolymer, and b) at least one aromatic primary diamine, in an equivalent molar ratio amine function/iso(thio)cyanate function ranging from 0.5 to 2, wherein, said prepolymer and diamine are free from disulfide (—S—S—) linkage and wherein the (?, ?)-diiso(thio)cyanate polysulfide prepolymer is the reaction product of at least one cycloaliphatic or aromatic diiso(thio)cyanate and at least one (?, ?)-diol prepolymer.

Abstract: The present invention discloses a semicrystalline, thermoplastic polyurethane which is comprised of the reaction product of (1) a hydrophobic polyol, (2) a polyisocyanate, and (3) a linear chain extender containing 5 carbon atoms or 7 to 12 carbon atoms; wherein the hydrophobic polyol has a number average molecular weight which is within the range of about 1,000 to about 4,000; wherein the semicrystalline, thermoplastic polyurethane has a weight average molecular weight which is within the range of 50,000 to 1,000,000; and wherein the semicrystalline, thermoplastic polyurethane has a melting point which is within the range of 80° C. to 150° C. This hydrophobic thermoplastic polyurethane offers a unique array of characteristics that are highly desirable for utilization in manufacturing a variety of products. For instance, it can be used in overmolding soft grips onto consumer products, in adhesives, and in protective coatings.

Abstract: Biocompatible macromer compositions are provided including an isocyanate-functional polyalkylene oxide combined with at least one multi-functional isocyanate as a first component, and a multi-amino functional compound possessing multiple primary amines as a second component. The isocyanate-functional polyalkylene oxide has pendant polyalkylene oxide groups. The resulting biocompatible macromer composition can be employed as an adhesive or sealant for medical/surgical uses.

Abstract: The present invention relates to a polyurethaneurea solution having a polyurethaneurea having a structural unit of the formula (I) and terminated with at least one copolymer unit of the group consisting of a polyethylene oxide, a polypropylene oxide, and mixtures thereof.

Abstract: The present invention discloses a method of producing a modified polyimide comprising a polycarbonate, which modified polyimide has excellent electric properties and adhesion as well as excellent heat resistance, flexibility, bending property, low warping, chemical resistance and storage stability; and the modified polyimide. Also disclosed are a composition comprising the modified polyimide and used thereof.

Abstract: A spandex comprising a polyurethane or polyurethaneurea reaction product of at least one diisocyanate compound and a poly(tetramethylene-co-ethyleneether) glycol comprising constituent units derived by copolymerizing tetrahydrofuran and ethylene oxide wherein the percentage of ethylene ether moieties is from about 16 to about 70 mole percent with at least one chain extender selected from the group consisting of diamines and diols and at least one chain terminator wherein the spandex is spun at a speed in excess of about 750 meters per minute.

Abstract: A process for producing porous aerogels or xerogels includes a reaction of at least one polyfunctional isocyanate with an amine component. The amine component includes at least one polyfunctional substituted aromatic amine. The reaction is in the presence of a solvent and a catalyst. Aerogels and xerogels that can be obtained in this way can be used as insulation material and in vacuum insulation panels.

Abstract: Golf equipment having improved cut and shear resistance that includes a polyurea composition, preferably saturated and/or water resistant, formed of a polyurea prepolymer and a curing agent, wherein the polyurea prepolymer includes an isocyanate and an amine-terminated compound, and wherein the curing agent includes a hydroxy-terminated curing agent, amine-terminated curing agent, or a mixture thereof.

Abstract: Reaction products of polyepoxides with amines followed by reaction with polyalkyleneoxide modified and/or polyester-modified and/or polyether-polyester-modified isocyanates give comblike aminic polymers, and their salts. The compounds are useful as wetting and dispersing agents for organic and inorganic pigments, and as fillers for aqueous and solvent-borne systems.

Abstract: The present invention relates generally to polyurethane compositions; and more preferably to thermoplastic polyurethane compositions. In one embodiment, the polyurethane compositions of the present invention have high moisture vapor transmission rates and are suitable for film applications (e.g., breathable films). In one embodiment, the polyurethane compositions of the present invention are prepared from the reaction of a mixed polyol component, a polyisocyanate component, a chain extender, and optionally at least one suitable catalyst, wherein the mixed polyol component is formed by a combination of one or more poly(ethylene oxide) polyols and one or more copolymer polyols, where the resulting mixed polyol component comprises from about 3 to about 30 weight percent of a copolymer polyol and about 70 to 97 weight percent of poly(ethylene oxide) polyol.

Abstract: A polyimide precursor composition includes a polyamic acid including a repeating unit represented by Chemical Formula 1 and diisocyanate represented by Chemical Formula 2. OCN-A2-NCO??Chemical Formula 2 The diisocyanate represented by Chemical Formula 2 is included in an amount of about 0.01 moles to about 10 moles based on 100 moles of the repeating unit represented by Chemical Formula 1 in the polyamic acid.

Abstract: Polyurea/polythiourea compositions comprising the reaction product of a first component comprising isocyanate and a second component comprising an amine, wherein the first component further comprises an isocyanate functional polythioether-polyurethane and/or polythiourethane, and/or the second component further comprises an amine/hydroxy functional polythioether, are disclosed. Methods for using the coating, and substrates coated therewith, are also disclosed.

Abstract: A porphyrin copolymer containing quinoxaline unit, preparation method and uses thereof are disclosed. The copolymer has the structural formula (I), wherein R1, R2, R3, R4 are selected from C1˜C32 alkyl groups, and n is an integer between 1 and 100. The copolymer is useful in the fields of solar battery and the like.

Abstract: A copolymer containing fluorenylporphyrin-anthracene is disclosed, which comprises a polymer represented by formula (1), in which R1, R2, R3 and R4, which may be identical or different, are C1-C16 alkyl, and n is an integer of 1 to 100. A preparation method of the copolymer containing fluorenylporphyrin-anthracene and the application thereof in manufacture of solar cell devices, organic field-effect transistors, organic electroluminescent devices, organic optical storage device, organic nonlinear materials or organic laser devices are also disclosed.

Abstract: A perylenetetracarboxylic acid diimide organic semiconductive material is represented by the following formula (I), which belongs to the field of photoelectric material. In formula (I), n is an integer of 1-100, R1, R2 or R3 is hydrogen, C1-C20 alkyl, C1-C20 alkoxyl, phenyl or alkoxyphenyl, R4 or R5 is C1-C20 alkyl, R6 or R7 is hydrogen, C1-C20 alkyl, C1-C20 alkoxyl or phenyl.

Abstract: A composite armor including a ballistic armor layer and a directly attached polyurea layer. The polyurea layer is the cured reaction product of an isocyanate curing agent and a mixture of diamines having the general formula: H2N-Ph-(C?O)—O—(CH2—CH2—CH2—CH2—O)n—(C?O)-Ph-NH2, wherein in the mixture n in the ranges from 3 to 14 and the weight average value of n is about 9 to 10. Ph represents phenyl. In a preferred embodiment, the polyurea layer is the strike face. The composite armor is useful for light armor applications in which weight is a factor such as military vehicle armor and military boat armor.

Abstract: Methods of producing a hybrid petro-plant oil polyol having a high bio-content by coupling a petro-chemical polyol with a plant oil based polyol is provided, including coupling an intermediate petro-polyol prepolymer with a plant oil polyol so as to synthesize a hybrid petro-plant oil polyol having a high bio-content and a hydroxyl number of between about 50 and 60.

Abstract: Curable polyurethane, polyurea and polyurethane/polyurea compositions that are particularly useful as the outer layer and/or at least one inner layer of golf balls, cured compositions, golf balls comprising the cured composition, and methods of increasing the initial velocity of a golf ball using the curable polyurethane, polyurea and polyurethane/poly urea compositions are disclosed.

Abstract: The present invention relates to a coating composition. More particularly the present invention relates to a coating composition comprising an amine curative composition comprising a bis-aromatic secondary diamine, a bis-aromatic primary diamine and optionally a mono-aromatic primary diamine.

Abstract: Golf balls containing at least one layer made from a thermoset polyurethane or polyurethane-urea that is the reaction product of a polyisocyanate with moisture-resistant polyol and a curing agent are provided. The moisture-resistant polyol may be prepared by dimerizing unsaturated aliphatic monocarboxylic acid or ester containing 10 to 60 carbon atoms followed by reacting it with a monomeric, oligomeric, or polymeric diol. In one preferred version, the moisture-resistant polyol is a branched polyester polyol containing 36 carbon atoms. The composition can be prepared using prepolymer or one-shot manufacturing techniques. The thermoset composition has good cross-link density. The resulting golf ball has desirable playing performance properties including high resiliency, toughness, impact durability, moisture-resistance, and soft feel.

Abstract: A chemical mechanical polishing pad comprising an acrylate polyurethane polishing layer, wherein the polishing layer exhibits a tensile modulus of 65 to 500 MPa; an elongation to break of 50 to 250%; a storage modulus, G?, of 25 to 200 MPa; a Shore D hardness of 25 to 75; and a wet cut rate of 1 to 10 ?m/min.

Abstract: A porphyrin copolymer containing thienothiadiazole units, preparation method and uses thereof are disclosed. The copolymer has the structural formula (I), wherein: R1, R2, R3, R4 are same or different and each represents a C1-C32 alkyl; n is an integer of 1-100. The copolymer comprises fluorene units, thienothiadiazole units and porphyrin units, which enhance the density of electron cloud in copolymer skeleton, make the band-gap of the copolymer become narrow, thereby broaden the spectral response range of the copolymer, and improve the photoelectric transformation efficiency.

Abstract: Disclosed are polyurea compositions comprising the reaction products of a polyformal-isocyanate prepolymer and a curing agent comprising an amine. The compositions are useful as sealants in aerospace applications.

Abstract: The present disclosure provides compositions having reduced viscosity which may be used as adhesives or tissue sealants, and includes methods for speeding the cure rate of such compositions.

Abstract: Methods for making polyurea polymer compositions are provided. The methods involve preparing an amine-terminated first prepolymer by reacting isocyanate compound A with a stoichiometric excess of polyamine. The first prepolymer is reacted with a stoichiometric excess of isocyanate compound B to form an isocyanate-terminated second prepolymer. The second prepolymer is reacted with a chain extender. The polymer compositions can be used in different products and are particularly suitable for making golf balls. For example, the polymer compositions can be used to make golf ball covers.

Abstract: Composite elements have the following layer structure: (i) from 2 to 20 mm of metal, (ii) from 10 to 300 mm of plastic, and (iii) from 2 to 20 mm of metal, where (i) and/or (iii) have an opening which may, if desired, be sealable.

Abstract: Curable polyurethane, polyurea and polyurethane/polyurea compositions that are particularly useful as the outer layer and/or at least one inner layer of golf balls, cured compositions, golf balls comprising the cured composition, and methods of increasing the initial velocity of a golf ball using the curable polyurethane, polyurea and polyurethane/polyurea compositions are disclosed.

Abstract: The invention relates to supramolecular ionomers. i.e. polymers having quadruple hydrogen bonding units (4H-units) and ionic groups or ionogenic groups within their structure. The supramolecular ionomers can be dispersed or solubilized in water at high solids contents while maintaining low viscosities, facilitating easy use and processing of the resulting aqueous formulations. The aqueous supramolecular ionomer compositions have excellent film-forming properties. Moreover, the polymer materials have good mechanical properties after drying, as they are not tacky, show high elasticity and low or no creep.

Abstract: Compositions for golf balls that include polyurea linkages and that are crosslinked in the soft segments of the polymer backbone. In particular, the compositions of the invention, which are based on a polyurea have improved crosslink density from the crosslinking between the soft, unsaturated segments of the polymer backbone. The curative blend includes at least one isocyanate-reactive component and a free radical initiator.

Abstract: Polyurethane prepolymers are described which are prepared from 2,4?-diiso-cyanate diphenylmethane (2,4?-MDI), a polyol component and an aliphatic diisocyanate. These prepolymers can be cured with aliphatic, cycloaliphatic and/or aromatic amines to form a cured urethane elastomer. In comparison to cured urethane elastomers based on monomeric 2,4?-MDI, these prepolymers provide elastomers with extended pour life, i.e. they exhibit a slower rate of viscosity buildup after curative and prepolymer are mixed which results in a reduced propensity to crack during the curing process and gives the opportunity to cast larger parts. In comparison to polyurea/urethanes prepared from cured TDI-prepolymers and which optionally include H12-MDI, the prepolymers of the invention have better health and safety aspects.

Abstract: A method of forming golf balls with at least a portion formed from polyurethane and polyurea compositions employing a curative blend that includes a pigment, a curing agent, and a compatible freezing point depressing agent so that the curative blend has a lower freezing point than the curing agent by itself and the blend does not lose pigment dispersion upon solidification and subsequent thawing.

Abstract: In one aspect, the invention relates to storage-stable and flowable polyurethane compositions comprising (a) one or more isocyanate-terminated polyurethane prepolymers derived from one or more hydrocarbon ring-containing diisocyanates and/or triisocyanates and one or more polyols; (b) one or more metal salt complexes of methylenedianiline; and (c) one or more organic acid halide compounds having one or more acid halide groups, wherein the one or more organic acid halide compounds are in an amount wherein the acid halide groups are present in a minimum concentration of about 100 parts per million by weight of the polyurethane prepolymer. In other aspects, the invention relates to methods for storing the curable polyurethane compositions, as well as methods for producing polyurethane elastomers.

Abstract: A coated granule obtained by coating a bioactive substance-containing granule with a urethane resin obtained by reaction of an aromatic polyisocyanate with an alcohol mixture comprising a polyesterpolyol having 15 wt % or more of an oxycarbonyl structure (—O—C(?O)—) part in the molecule and a C4-C30 alkanol optionally substituted by one or more aryl groups, wherein the molar ratio of the polyesterpolyol to the alkanol is 1:1 to 100:1, is capable of controlling elution of the bioactive substance appropriately, and, the urethane resin forming the coat film shows degradability in soil.

Abstract: A polymer casting formulation for producing molded polymeric structural members comprises a liquid mixture that contains a polyisocyanate component comprising at least two polyisocyanates; and an isocyanate-reactive component comprising at least two isocyanate-reactive compounds, which formulation cures to form a polyurethane. Methods of using the casting formulation to produce molded polymer structural members and the structural members that are produced by such a method are also described.

Abstract: The present invention teaches a new process to produce novel, hard, optically clear, impact-resistant polyurethane polymers that are characterized by excellent thermo mechanical properties and chemical resistance, and the polymers made as a result of such a process. The polyurethanes are made by reacting a) a prepolymer made by reacting a polyisocyanate with a primary amine-terminated polyether with an amine functionality of about 2 and a molecular weight of >1000, and in which the free —NCO content of the resulting prepolymer is >18% by weight; with b) (i) a polyol having an average hydroxyl functionality greater than or equal to 2 and an average hydroxyl equivalent weight of from about 300 to about 1,000, and (ii) a curing agent that has isocyanate reactive groups, a functionality of 2 to 3 and a molecular weight of <400.