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公开(公告)号：US20190225755A1
公开(公告)日：2019-07-25
申请号：US16226149
申请日：2018-12-19
申请人： SKC CO., LTD.
发明人： Jongmin SHIM , Jung Hwan MYUNG , Seung Mo HONG , Hyuk Hee HAN , Junghwan SHIN , Hyeon Myeong SEO
CPC分类号： C08G75/04 , C08G18/248 , C08G18/3876 , C08G18/73 , C08G18/7621 , C08G18/7642 , C08K5/005 , C08K5/37 , C08K2201/014 , G02B1/041 , C08L75/04 , C08L81/00
摘要： Embodiments relate to a polythiol composition for a plastic optical lens and a polythiourethane-based plastic optical lens prepared therefrom. In the embodiments, a first polythiol compound having mercapto groups only as a hydrogen-bondable functional group and a second polythiol compound having mercapto groups as a hydrogen-bondable functional group and a hydrogen-bondable functional group other than a mercapto group are used in an appropriate amount. Thus, not only is it possible to control the viscosity of a polymerizable composition at the initial stage of polymerization at a low temperature of 5 to 15° C. and to stabilize the rate of increase in the viscosity of the composition and the reaction rate thereof, but also the change in the viscosity at a low temperature is low, thereby preventing the generation of striae, bubbles, and the like. Further, various plastic lenses such as eyeglass lenses, camera lenses, and the like having excellent appearance characteristics (without striae and bubbles) and excellent optical characteristics can be obtained from the composition.
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公开(公告)号：US20190202969A1
公开(公告)日：2019-07-04
申请号：US16235955
申请日：2018-12-28
申请人： SKC CO., LTD.
发明人： Jongmin SHIM , Seung Mo HONG , Hyeon Myeong SEO , Junghwan SHIN
CPC分类号： C08G18/3876 , B29C33/62 , B29D11/00 , B29K2081/00 , B29L2011/0016 , C08G18/246 , C08G18/3206 , C08G18/38 , C08G18/73 , C08G18/752 , C08G18/755 , C08G18/758 , C08G18/7621 , G02B1/04 , G02B1/041 , G02B3/00 , C08L75/04 , C08L81/00
摘要： The embodiments relate to a polythiol composition for a plastic optical lens and a polythiourethane-based plastic optical lens prepared therefrom. In the embodiments, a first polythiol compound having an ester group and a mercapto group only as a hydrogen-bondable functional group and a second polythiol compound having an ester group and a hydrogen-bondable functional group other than a mercapto group are used in an appropriate amount. Thus, it is possible to control the viscosity of a polymerizable composition at the initial stage of polymerization at a low temperature of 5 to 15° C. and to stabilize the rate of increase in the viscosity of the composition and the reaction rate thereof, thereby preventing the generation of striae, bubbles, and the like. Further, various plastic lenses such as eyeglass lenses, camera lenses, and the like having excellent appearance characteristics (without striae and bubbles) and excellent optical characteristics can be obtained from the composition.
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公开(公告)号：US20190170905A1
公开(公告)日：2019-06-06
申请号：US16255921
申请日：2019-01-24
发明人： Akinori RYU , Hiroyuki KAMIO , Yoshimitsu AIISO
CPC分类号： G02B1/08 , B29D11/00644 , G02B1/043 , G02B5/3033 , C08L81/00
摘要： A plastic polarized lens including a polarized film containing thermoplastic polyester, a coat layer containing a urethane-based resin comprised of a structural unit derived from polybutadiene having a hydroxyl group on the terminal and a structural unit derived from diphenylmethane diisocyanate, which is formed over at least one surface of the polarized film and a substrate layer containing a defined thiourethane-based resin, which is formed over at least the coat layer. A method of producing a plastic polarized lens, a urethane-based resin-coated polarized film and a method of producing a urethane-based resin-coated polarized film are also provided.
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公开(公告)号：USRE47000E1
公开(公告)日：2018-08-21
申请号：US14927209
申请日：2015-10-29
发明人： Terunobu Saitoh
IPC分类号： C07C69/73 , G02B1/04 , C07C69/602
摘要： An optical material organic compound having characteristics that the dispersion characteristic (Abbe number (νd)) and the secondary dispersion characteristic (θg,F) of the refractive index are high, the transmittance in the visible light region is high, and the chromatic aberration correction function delivers high performance, which represented by the general formula (1) or (2) is provided.
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5.发明申请公开(公告)号：US20180208686A1
公开(公告)日：2018-07-26
申请号：US15744398
申请日：2016-07-13
CPC分类号： C08F12/30 , C08F2/38 , C08F2/44 , C08F12/08 , C08F212/08 , C08G75/00 , C08G75/14 , C08K3/06 , C08L81/00 , C08L81/04 , H01M4/38 , H01M4/382 , H01M4/602 , H01M10/052
摘要： Copolymerization of elemental sulfur with functional comonomers afford sulfur copolymers having a high molecular weight and high sulfur content. Nucleophilic activators initiate sulfur polymerizations at relative lower temperatures and in solutions, which enable the use of a wider range of comonomers, such as vinylics, styrenics, and non-homopolymerizing comonomers. Nucleophilic activators promote ring-opening reactions to generate linear polysulfide intermediates that copolymerize with comonomers. Dynamic sulfur-sulfur bonds enable re-processing or melt processing of the sulfur polymer. Chalcogenide-based copolymers have a refractive index of about 1.7-2.6 at a wavelength in a range of about 5000 nm-8μιτι. The sulfur copolymer can be a thermoplastic or a thermoset for use in elastomers, resins, lubricants, coatings, antioxidants, cathode materials for electrochemical cells, dental adhesives/restorations, and polymeric articles such as polymeric films and free-standing substrates. Optical substrates are constructed from the chalcogenide copolymer and are substantially transparent in the visible and infrared spectrum.
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公开(公告)号：US20180186967A1
公开(公告)日：2018-07-05
申请号：US15739525
申请日：2016-06-29
发明人： Dong-Chul Pyun
CPC分类号： C08K5/0066 , C08K3/04 , C08L57/06 , C08L81/00 , C08L2201/02 , C09K21/14 , G01N25/4866
摘要： Compositions of flame retardants and methods of enhancing char formation in a flame retardant-treated substrate. A base material is combined with a flame retardant to form the flame retardant-treated substrate. The flame retardant contains a sulfur copolymer prepared by the polymerization of sulfur monomers with organic monomers. The flame retardant can be deposited on a surface of the base material, coated on the base material, or mixed into the base material. When the flame resistant substrate is on fire, the flame retardant forms a charring layer on the flame retardant-treated substrate. The charring layer can extinguish and prevent the fire from spreading.
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公开(公告)号：US10012773B2
公开(公告)日：2018-07-03
申请号：US15429330
申请日：2017-02-10
IPC分类号： G02B1/14 , G02B1/04 , C08G18/10 , C08G18/66 , C08G18/32 , C08G18/72 , C08G18/75 , C08G18/73 , C08G18/34 , C08G18/48 , C08G18/38 , B29C45/72 , B29C45/00 , B29D11/00 , C08G18/12 , G02B1/08 , C08L75/02 , C08L81/00 , C08L75/04
CPC分类号： G02B1/14 , B29C45/0001 , B29C45/72 , B29D11/00009 , B29K2995/0026 , B29K2995/0031 , C08G18/10 , C08G18/12 , C08G18/3203 , C08G18/3206 , C08G18/3212 , C08G18/3215 , C08G18/3271 , C08G18/3275 , C08G18/34 , C08G18/3876 , C08G18/4825 , C08G18/6685 , C08G18/6688 , C08G18/721 , C08G18/722 , C08G18/724 , C08G18/73 , C08G18/755 , C08G18/758 , C08G2120/00 , C08L75/02 , C08L75/04 , C08L81/00 , G02B1/04 , G02B1/041 , G02B1/08
摘要： Provided is a method of preparing a transparent, non-elastomeric optical article including (1) combining to form a reaction mixture free of urethanation catalysts (a) a polyisocyanate component; and (b) an active hydrogen component of polyol and/or polythiol, and at least one compound containing both amine and hydroxyl functional groups; (2) allowing the polyisocyanate component to react with amine functional groups in the active hydrogen component to form an intermediate product including a polyurea prepolymer having hydroxyl functional groups in admixture with the polyol and/or polythiol and, optionally, the compound containing both amine and hydroxyl functional groups; (3) mixing the intermediate product with additional polyisocyanates and optionally a urethanation catalyst to form a second reaction mixture; (4) introducing the second reaction mixture to a mold to form a thermoset polymerizate; and (5) releasing the polymerizate from the mold. Optical films and articles prepared by the method also are provided.
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公开(公告)号：US20180179154A1
公开(公告)日：2018-06-28
申请号：US15737923
申请日：2016-06-17
发明人： Dong Gyu JANG , Soo Gyun Roh
IPC分类号： C07C319/12 , C08G18/38 , C08G18/72 , C08G18/73 , C08G18/75 , C07C319/04 , G02B1/04
CPC分类号： C07C319/12 , C07C319/04 , C07C319/26 , C08G18/3876 , C08G18/722 , C08G18/73 , C08G18/755 , C08L81/00 , G02B1/04 , G02B1/041 , C07C323/52
摘要： A method for producing 3-mercaptopropionic acid and methods using same for producing a carbonic acid ester compound having a mercapto group and a thiourethane-based optical material. The present invention improves a process during the production of 3-mercaptopropionic acid, significantly increases yield, and reduces the temperature and time during vacuum distillation, thereby preventing the destruction of a product and significantly increasing productivity. The present invention allows high-purity 3-mercaptopropionic acid having an excellent color to be finally yielded; accordingly, by using same, a high-purity carbonic acid ester compound having an excellent color and a mercapto group can be inexpensively obtained. A thiourethane-based polymeric composition and a thiourethane-based optical material obtained by polymerizing same can likewise be inexpensively obtained by using said carbonic acid ester compound. Such carbonic acid ester compound can be used for the production of inexpensive thiourethane optical lenses; consequently, inexpensive optical lenses having an excellent color can be obtained.
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公开(公告)号：US20180044524A1
公开(公告)日：2018-02-15
申请号：US15556534
申请日：2016-03-08
CPC分类号： C08L81/06 , C08G65/38 , C08G75/23 , C08L67/00 , C08L67/02 , C08L81/00 , C08L81/02 , C08L2205/025 , C08L2205/06
摘要： Described herein is a composition comprising a polymer blend. The polymer blend comprises 92 to 99 weight percent of a polyphenylene ether sulfone and 1 to 8 weight percent of a polyalkylene terephthalate, wherein weight percent is based on the combined weight of the polyphenylene ether sulfone and polyalkylene terephthalate. The polymer blend has a transmittance greater than or equal to 60% and a haze less than or equal to 10% at a thickness of 3.2 millimeters, as determined according to ASTM D1003.
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公开(公告)号：US20180016480A1
公开(公告)日：2018-01-18
申请号：US15545849
申请日：2016-02-10
发明人： Susan E. DeMoss , Jonathan D. Zook , Matthew Capel
IPC分类号： C09J181/02 , C08G75/04 , C07C323/14 , C08G75/12 , C07C321/18
CPC分类号： C09J181/02 , C07C321/18 , C07C323/14 , C08G75/00 , C08G75/02 , C08G75/04 , C08G75/12 , C08L81/00 , C08L81/02
摘要： Polythioether polymers, sealants containing polythioether polymers, and compounds useful as stabilizing monomers in the manufacture of polythioether polymers are provided. In many embodiments the polymers and sealants demonstrate reduced risk of spoilage that may be caused by low temperature storage of the polymer or uncured sealant. Compounds useful as stabilizing monomers include compounds according to formula I: CH2═CR1—CHR2—S—R3—S—CHR4—CR5═CH2 [I] wherein R1, R2, R4 and R5 are independently selected from —H, —CH3 or —C2H5, and wherein R3 is selected from divalent groups comprising 2-12 carbon atoms, 0-5 ether oxygen atoms and 0-5 thioether sulfur atoms, which may be straight, branched or cyclic.
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