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31. 发明申请

US20220106476A1 RESIN COMPOSITION, MELT-FORMING MATERIAL, MULTILAYER STRUCTURE, AND AGRICULTURAL FILM 有权
公开(公告)号：US20220106476A1
公开(公告)日：2022-04-07
申请号：US17552667
申请日：2021-12-16
申请人： MITSUBISHI CHEMICAL CORPORATION
发明人： Shintaro USUI , Minako IKESHITA
IPC分类号： C08L29/04 , A01G13/02
摘要： A resin composition contains: (A) an ethylene-vinyl alcohol copolymer having an ethylene structural unit content of 20 to 60 mol %; (B) a saponified ethylene-vinyl acetate copolymer having an ethylene structural unit content of not less than 70 mol %; and (C) a sorbic acid ester; wherein the sorbic acid ester (C) is present in an amount of 0.00001 to 10 ppm based on the weight of the resin composition. The resin composition is resistant to coloration.

32. 发明授权

US11292860B2 Ethylene-vinyl alcohol copolymer pellets, resin composition, and multilayer structure 有权
公开(公告)号：US11292860B2
公开(公告)日：2022-04-05
申请号：US16434554
申请日：2019-06-07
申请人： MITSUBISHI CHEMICAL CORPORATION
发明人： Kota Inoue , Honoka Hashimoto , Nobuaki Sato
IPC分类号： C08F210/02 , C08F216/06 , C08F8/16 , C08J3/12 , C08L29/04 , B32B27/28
摘要： Ethylene-vinyl alcohol copolymer pellets comprise an ethylene-vinyl alcohol copolymer and water, and have a water content of not higher than 0.5 wt. %, wherein the ratio (Y/Z) of a lactone ring content (Y) to the sum (Z) of a carboxylic acid content (X) and the lactone ring content (Y) in terminal structures of the ethylene-vinyl alcohol copolymer is not less than 60 mol %. The pellets are excellent in high-temperature thermal decomposition-suppressing effect and thermal stability, and are free from odor emanation and coloration even if being processed at a higher temperature.

33. 发明申请

US20220081546A1 COMPOSITION, COATING, FILM, AND BASE MATERIAL 有权
公开(公告)号：US20220081546A1
公开(公告)日：2022-03-17
申请号：US17414138
申请日：2019-12-20
申请人： KURARAY CO., LTD.
发明人： Yuki FUJII , Kenta TOSHINARI , Yasunari UMEDA , Atsushi INATOMI , Akio FUJITA
IPC分类号： C08L29/04 , C08L23/08 , C08F2/26 , C08F2/38 , C08F220/18 , C08F222/10 , C08L51/00 , C08F220/40 , C09D7/65
摘要： The present invention relates to not only the provision of a composition containing a wide variety of particles with good dispersibility, the composition being able to make both rigidity and elongation at sufficient levels compatible with each other even under a low humidity, etc. but also the provision of a coating and a film each formed of the foregoing composition, and a base material having the foregoing coating or film. Specifically, the present invention provides a composition containing an ethylene-vinyl alcohol copolymer (A) having the content of an ethylene unit of 0.5 to 19 mol % relative to all structural units and a particle (B), wherein the content of the particle (B) is 1 part by mass or more and less than 100 parts by mass based on 100 parts by mass of the ethylene-vinyl alcohol copolymer (A).

34. 发明申请

US20220033637A1 GREASE-RESISTANT FILM, GREASE-RESISTANT BASE MATERIAL, AND GREASE-RESISTANT PAPER 有权
公开(公告)号：US20220033637A1
公开(公告)日：2022-02-03
申请号：US17413776
申请日：2019-12-20
申请人： KURARAY CO., LTD.
发明人： Kenta TOSHINARI , Yuki FUJII , Atsushi INATOMI , Akio FUJITA
IPC分类号： C08L29/04 , C08J5/18 , D21H21/16 , D21H19/22
摘要： An oil-resistant film may be provided by an oil-resistant base material that is excellent in the oil resistance even in not only a plane part but also a bent part of a package can be obtained and also to the provision of an oil-resistant base material having the oil-resistant film and an oil-resistant paper having the oil-resistant film. An oil-resistant film may contain a polyvinyl alcohol-based polymer (A) and a polymer particle (B) containing a polymer having a glass transition temperature of 40° C. or lower, wherein the content of the polymer particle (B) is 1 part by mass or more and less than 150 parts by mass based on 100 parts by mass of the polyvinyl alcohol-based polymer (A); and an oil-resistant base material (oil-resistant paper) having the oil-resistant film on a base material (paper).

35. 发明申请

US20220002532A1 Process and Apparatus for Manufacture of Processable Polyvinyl Alcohol 有权
公开(公告)号：US20220002532A1
公开(公告)日：2022-01-06
申请号：US17368176
申请日：2021-07-06
申请人： Aquapak Polymers Limited
发明人： John Williams , Sian Griffiths , Robert Ashworth
IPC分类号： C08L29/04 , C08F116/06 , C08J3/05
摘要： The invention describes a method for the manufacture of a plasticized polyvinyl alcohol polymer mixture including the steps of introducing a polyvinyl alcohol or a blend thereof having a degree of hydrolysis in the range of 93% to 98% or more into a mixing reactor; adding a processing agent, and a plasticizer to form a reaction mixture; wherein the plasticizer is selected from the group consisting of the following compounds and mixtures thereof: (a) sugar alcohols selected from the group consisting of: diglycerol, triglycerol, fructose, ribose, xylose, D-mannitol, triacetin, and mixtures thereof; polyols selected from the group consisting of: pentaerythritol, dipentaerythritol, and mixtures thereof; (b) diols selected from the group consisting of: methyl pentanediol, 1,2-propanediol, 1,4-butanediol, 2-hydroxy-1,3-propanediol, 3-methyl-1,3-butanediol, 3,3-dimethyl-1,2-butanediol, and mixtures thereof; (c) glycols selected from the group consisting of: polyethylene glycol 300, polyethylene glycol 400, alkoxylated polyethylene glycol, and mixtures thereof; (d) caprolactam, tricyclic trimethylolpropane formal, rosin esters, euricamide, and mixtures thereof; reacting the reaction mixture in a reaction zone to form plasticized polymer; and allowing the plasticized polymer to pass from the reaction zone.

36. 发明授权

US11214026B2 Structured film laminate with antistatic compositions embedded therein 有权
公开(公告)号：US11214026B2
公开(公告)日：2022-01-04
申请号：US15781294
申请日：2015-12-04
申请人： ESSILOR INTERNATIONAL
发明人： Ronald A. Berzon , Haipeng Zheng
IPC分类号： B29D7/01 , C08K3/16 , C08K3/22 , C08L1/12 , C08L29/04 , G02B5/30 , G02B1/16 , C08K3/04
摘要： Embodiments of the disclosure relate to an antistatic film structure which comprises a transparent antistatic support structure and at least one antistatic component. The transparent antistatic support structure and antistatic component may be combined by imbibing, melt extruding, blown film extruding, calendaring, solvent casting, mold casting, wet transfer, sublimation, and solidification of a liquid to a solid using heat, UV or other means.

37. 发明授权

US11208550B2 Polyvinyl alcohol composition and use thereof 有权
公开(公告)号：US11208550B2
公开(公告)日：2021-12-28
申请号：US16473773
申请日：2017-12-27
申请人： KURARAY CO., LTD.
发明人： Tadahito Fukuhara , Keisuke Morikawa , Taeko Kaharu
IPC分类号： C08L29/04 , C08F2/20 , C08F2/44 , C08F216/06 , C08K5/053 , D21H19/60 , D21H27/00
摘要： There is provided a composition (C) comprising a modified PVA (A) and a compound (B), wherein the modified PVA (A) contains 0.01 mol % or more and less than 2 mol % of double bonds derived from an unsaturated carboxylic acid or a derivative thereof in side chains; the compound (B) is a compound having a conjugated double bond and two or more hydroxy groups bonded to the conjugated double bond, or a salt or oxide thereof; and a content of the compound (B) in the composition (C) is 0.001 parts by mass or more and less than 5 parts by mass based on 100 parts by mass of the modified PVA (A). The composition (C) has excellent hue, contains less insolubles in water, and has excellent water solubility.

38. 发明申请

US20210395508A1 AQUEOUS BINDER COMPOSITIONS 有权
公开(公告)号：US20210395508A1
公开(公告)日：2021-12-23
申请号：US17465938
申请日：2021-09-03
申请人： Owens Corning Intellectual Capital, LLC
发明人： Xiujuan Zhang , Gert Mueller , Kendel Smith
IPC分类号： C08L31/04 , C08L29/04 , C08L33/02 , D04H1/4218 , C08K5/053 , C08K5/17 , D04H1/64 , C08K5/092 , D04H1/587
摘要： An aqueous binder composition is disclosed that comprises at least one long-chain polyol having at least two hydroxyl groups and a number average molecular weight of at least 2,000 Daltons; a primary cross-linking agent comprising at least two carboxylic acid groups; and a secondary cross-linking agent comprising a short-chain polyol having at least two hydroxyl groups and a number average molecular weight less than 2,000 Daltons.

39. 发明申请

US20210395507A1 BINDER 有权
公开(公告)号：US20210395507A1
公开(公告)日：2021-12-23
申请号：US17291839
申请日：2019-11-13
申请人： JAPAN VAM & POVAL CO., LTD.
发明人： Shotaro KAWADA , Masatoshi KAWANISHI
IPC分类号： C08L29/04 , A61K9/16 , A61K9/28
摘要： A novel binder is provided. The binder comprises a polyvinyl alcohol-based polymer which has an average saponification value of 85.0 mol % to 89.0 mol % as measured according to JIS K6726 and meets requirement (A): based on data obtained by measurement of the polyvinyl alcohol-based polymer by liquid chromatography, a value represented by formula (3) shown below is 22 or more, wherein the measurement is performed with a liquid chromatography system equipped with a charged aerosol detector and a Thermo Scientific Acclaim™ 300 column (catalog number: 060266, carbon load: 8%, maximum pressure: 4500 psi, particle size: 3 μm, pore size: 300 A, stationary phase: C18, surface area: 100 m2/g, length: 150 mm, diameter: 4.6 mm, pH: 2.5 to 7.5, material: glass lined tubing) under the measurement conditions described below, wherein the data represent a baseline-normalized intensity over a retention time of 5.0 to 12.0 minutes at a sampling interval of 500 ms, and wherein the value represented by formula (3) is calculated from formulae (1) and (2) shown below, wherein the intensity at a retention time Ti [min] is represented by Pi [pA]. Measurement Conditions Concentration of an aqueous polyvinyl alcohol-based polymer solution: 0.1% by mass Injection volume of the aqueous polyvinyl alcohol-based polymer solution: 2 μL Column temperature: 50° C. Flow rate: 1.0 mL/min Eluent: a mixed solvent of water and methanol Eluent gradient conditions: the ratio of water and methanol in the eluent changes from 95:5 to 15:85 at a constant rate over a run time from minutes 0 to 10; and the ratio of water and methanol in the eluent is constant at 15:85 over a run time from minutes 10 to 15. Formulae Tn=Σ(Ti×Pi)/Σ(Pi) Formula (1) Tw=Σ(Ti2×Pi)/Σ(Ti×Pi) Formula (2) {(Tw/Tn)−1}×1000 Formula (3)

40. 发明申请

US20210395471A1 Method for welding foam particles 有权
公开(公告)号：US20210395471A1
公开(公告)日：2021-12-23
申请号：US17296059
申请日：2019-11-25
申请人： Rolf SIEGEL , Kurtz GmbH
发明人： Rolf Siegel
IPC分类号： C08J3/24 , C08J9/224 , C08J9/232 , C08J3/28 , C08L29/04
摘要： The present invention relates to methods for the welding of foam particles, by electromagnetic waves, wherein foam particles with a surface modification are welded in a molding tool by electromagnetic waves, wherein the surface modification is produced by contacting the foam particles with a solution containing polymers which are capable of forming intra- or inter-molecular covalent bonds, under the conditions required for this purpose.

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