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21.发明公开公开(公告)号：US20230406767A1
公开(公告)日：2023-12-21
申请号：US18112327
申请日：2023-02-21
申请人： KING SAUD UNIVERSITY
CPC分类号： C04B20/0004 , C04B24/2611 , C04B14/104 , C04B20/0008 , C04B41/0072 , C04B2111/1037 , C04B14/106 , C04B40/0085 , C04B14/06 , C04B14/361 , C04B20/0096
摘要： Clay polymer nanocomposites may be mixed with an aggregate material and heat treated to make a structural stabilizer. In an embodiment, the composition is a structural stabilizer resulting from thermal casting and heat treatment. The structural stabilizer does not include cement or water. The heat treatment may be any suitable heat application, including microwave heating, convection oven heating or heating in thermal mixers. The structural stabilizer can be rapidly synthesized to provide high compressive strength and high homogeneity, and to be substantially free of fractures and cracks. Methods of repairing cracks in concrete and stabilizing soil, rock and sand dune formations using the structural stabilizer include thermal casting. Thermal casting ductile concrete molds can include a coating of aluminum foil. The concrete is self-compact, ecofriendly, lightweight, self-repairing and self pre-stressing with homogeneity and low density. The concrete resists steel corrosion, sudden collapse, and does not produce pollution.
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公开(公告)号：US20230382789A1
公开(公告)日：2023-11-30
申请号：US18315396
申请日：2023-05-10
发明人： Chonggen Pan , Yu Hu , Jiawei Zang , Shiyang Qu , Zhigao Wei
IPC分类号： C04B7/02 , C04B24/26 , C04B14/10 , C04B28/08 , C04B24/16 , C04B18/08 , C04B28/04 , C04B103/30
CPC分类号： C04B7/02 , C04B24/2664 , C04B14/106 , C04B28/08 , C04B24/16 , C04B18/08 , C04B28/04 , C04B2103/302
摘要： An interface joint material based on industrial solid waste includes raw materials in parts by weight: portland slag cement, 80˜130 parts; metakaolin, 80˜130 parts; the industrial solid waste, 80˜130 parts; sodium silicate, 25˜35 parts; alkali, 8˜12 parts; acrylate, 30˜36 parts; a trivinyl ether compound, 1˜3 parts; inorganic sulfite, 1˜3 parts; persulfate, 1˜3 parts; a water reducing agent, 3˜6 parts, and water, 60˜80 parts. The interface joint material is suitable for a concrete interface of different components, with good bonding, high strength, and the advantages of pumping, fast hard, early strength, micro expansion and high ductility; In addition, the industrial solid waste is added into the interface joint material, which improves a utilization rate of the industrial solid waste in construction joint materials, and has significant for recycling of the industrial solid waste.
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23.发明公开公开(公告)号：US20230374188A1
公开(公告)日：2023-11-23
申请号：US18028876
申请日：2021-12-02
申请人： SIKA TECHNOLOGY AG
发明人： Jürg WEIDMANN , Jörg ZIMMERMANN , Joachim GLAUS
IPC分类号： C08F290/06 , C08G65/323 , C04B28/02 , C04B24/26
CPC分类号： C08F290/062 , C08G65/323 , C04B28/02 , C04B24/267 , C04B2103/408
摘要： A process for the reduction of the content of a compound I of general formula (II)
where R1 is hydrogen or methyl, each R2, independently from each other, is hydrogen or methyl, R3 is hydrogen or an aliphatic or cycloaliphatic or aromatic hydrocarbon with 1-8 carbon atoms, AO is a C2-C12 oxyalkylene group, x=0 or 1, and n=2-350, from a mixture including or consisting of a compound I of general formula (II) and an alkoxylated alcohol A of general formula (I)
where R1, R2, R3, AO, x, and n are as described in general formula (II) above, characterized in that the process includes a treatment of the mixture including or consisting of a compound I and an alkoxylated alcohol A with an acid. Also, the use of the alkoxylated alcohols A for the production of polycarboxylate ethers.-
公开(公告)号：US20230340172A1
公开(公告)日：2023-10-26
申请号：US18041253
申请日：2021-08-11
申请人： KURARAY CO., LTD.
发明人： Masaki Kato , Yuta Taoka , Yoriko Imaoka , Ayumu Yamamoto , Yasuhiro Tajima
IPC分类号： C08F216/06 , C08L23/08 , C08F2/20 , C09K8/24 , C09K8/035 , C09D129/04 , C04B24/26
CPC分类号： C08F216/06 , C08L23/0861 , C08F2/20 , C09K8/24 , C09K8/035 , C09D129/04 , C04B24/2623 , C08L2201/14
摘要： The present invention provides a vinyl alcohol polymer having properties comparable to the properties of vinyl alcohol polymers of solely petroleum origin, and, in using the vinyl alcohol polymer (PVA), saves petroleum resources, and reduces carbon dioxide emissions in production processes. The present invention relates to a vinyl alcohol polymer (X) obtained through saponification after polymerization of a plant-derived vinyl ester monomer (A) and a petroleum-derived vinyl ester monomer (B), and having a mole ratio (A)/(B) of 5/95 to 100/0.
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公开(公告)号：US20230339811A1
公开(公告)日：2023-10-26
申请号：US17978406
申请日：2022-11-01
发明人： Naser Aldabaibeh , Mark Antosh , Mark Hemphill
CPC分类号： C04B24/267 , C04B11/007 , C04B28/141 , C04B2103/12
摘要： Provided are a gypsum set accelerator wherein the gypsum set accelerator is a dry-milled mixture comprising calcium sulfate dihydrate co-ground with one or more of the following: a polycarboxylic ether (PCE) and/or a sulfonated melamine polycondensate (SMP), gypsum slurries formulated with the gypsum set accelerator and methods for producing the gypsum set accelerator and manufacturing gypsum products with the gypsum set accelerator.
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26.发明授权公开(公告)号：US11780738B2
公开(公告)日：2023-10-10
申请号：US16976704
申请日：2019-03-22
申请人： SIKA TECHNOLOGY AG
发明人： Patrick Juilland , Emmanuel Gallucci , Denise Schönenberger , Luis Pegado , Lukas Frunz , Arnd Eberhardt
CPC分类号： C01F11/02 , C04B22/064 , C04B24/2647 , C04B40/0039 , B82Y40/00 , C01P2004/51 , C01P2004/62 , C01P2006/22 , C04B2103/12
摘要： An aqueous suspension including 5 to 65 wt. % of calcium hydroxide, wherein at least 50 wt. % of the calcium hydroxide is present in the form of nanoparticles, and at least one compound for stabilizing the suspension. The aqueous suspension accelerates the setting of mineral binder compositions without adversely affecting the processing properties of the composition.
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公开(公告)号：US20230303446A1
公开(公告)日：2023-09-28
申请号：US18023268
申请日：2021-08-25
摘要： A cement-reduced construction composition comprises a) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, and having a Blaine surface area of at least 3800 cm2/g, in an amount of 180 to 400 kg per m3 of the freshly mixed construction composition; b) a fine material having a Dv90 of less than 200 μm, selected from alkali-activatable binders, rock powders and inorganic pigments, or mixtures thereof, in a total amount of 20 to 200 parts by weight, relative to 100 parts by weight of cementitious binder a); c) optionally, an extraneous aluminate source; d) a sulfate source; and e) a polyol in an amount of 0.3 to 2.5 wt.-%, relative to the amount of cementitious binder a). The composition contains available aluminate, calculated as Al(OH)4—, from the calcium aluminate mineral phases plus the optional extraneous aluminate source, per 100 g of cementitious binder a), in a total amount of at least 0.08 mol, if the amount of cementitious binder a) is in the range of 180 to less than 220 kg per m3 of the freshly mixed composition, at least 0.06 mol, if the amount of cementitious binder a) is in the range of 220 to less than 280 kg per m3 of the freshly mixed composition, and at least 0.05 mol, if the amount of cementitious binder a) is 280 kg or more per m3 of the freshly mixed composition; and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition further comprises f) an ettringite formation controller comprising (i) glyoxylic acid, a glyoxylic acid salt and/or a glyoxylic acid derivative; and (ii) at least one of (ii-a) a borate source and (ii-b) a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g·L−1 or more, organic carbonates, and mixtures thereof; and g) a co-retarder selected from (g-1) α-hydroxy monocarboxylic acids and salts thereof, (g-2) phosphonic acids and salts thereof, (g-3) polycarboxylic acids and salts thereof, and mixtures thereof. The cement-reduced construction composition is a reduced carbon footprint construction composition and exhibits high early strength, high final strength, sufficient open time, high durability, and reduced shrinkage compared to ordinary Portland cement based mixes. Ingredients of the construction composition are abundantly available.
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公开(公告)号：US20230242687A1
公开(公告)日：2023-08-03
申请号：US17927523
申请日：2021-07-15
发明人： Akihiro YAMASHITA
CPC分类号： C08F16/06 , C04B24/2623 , C09K8/467 , C08F2810/00
摘要： A PVA is excellent in heat resistance and pressure resistance. A polyvinyl alcohol-based polymer, as a saponificated product of a homopolymer composed of a vinyl ester monomer; a copolymer of a vinyl ester monomer and a monofunctional monomer other than the vinyl ester; a copolymer of a vinyl ester monomer and a polyfunctional monomer; or a copolymer of a vinyl ester monomer, a monofunctional monomer other than vinyl ester, wherein the polyvinyl alcohol-based polymer has a slope of 1.2 or less in a double logarithmic plot of storage elastic modulus G′ (at 20° C.) in an angular frequency region of 1.0 to 10.0 rad/s, in measurement of an aqueous solution of the polyvinyl alcohol-based polymer filtered through a 100-mesh filter (opening: 0.154 mm) and then adjusted to a concentration of 10.0 mass %.
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公开(公告)号：US20230227358A1
公开(公告)日：2023-07-20
申请号：US18156099
申请日：2023-01-18
CPC分类号： C04B24/04 , C04B24/121 , C04B24/16 , C04B24/2664 , C04B22/085 , C04B22/141 , C04B2103/22
摘要： A strengthening concrete admixture for the production of high-strength concrete products is provided. The strengthening concrete admixture comprises water; a set retarder comprising a salt of gluconic acid; one or more set accelerators; one or more hardening accelerators; and at least one stabilizing agent. Incorporation of the strengthening admixture in a cement mixture enhances both early and late age strength development and allows for sustainable and more energy efficient construction practices.
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公开(公告)号：US20230212332A1
公开(公告)日：2023-07-06
申请号：US17927581
申请日：2021-07-15
发明人： Akihiro YAMASHITA
CPC分类号： C08F16/06 , C04B24/2623 , C09K8/487 , C04B2103/465
摘要： A PVA excellent in resistance to melting at high temperature is provided. The polyvinyl alcohol-based polymer is a saponificated product of a homopolymer composed of a vinyl ester monomer, a copolymer of a vinyl ester monomer and a monofunctional monomer other than the vinyl ester, a copolymer of a vinyl ester monomer and a polyfunctional monomer, or a copolymer of a vinyl ester monomer, a monofunctional monomer other than vinyl ester, and a polyfunctional monomer has a particle size of 50 nm or more at a cumulative frequency of 50% in particle size distribution by dynamic light scattering measurement of a 0.4 mass % aqueous solution of the polyvinyl alcohol-based polymer at 25° C.
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