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11. 发明专利

JPH0641377A HEAT-RESISTANT RESIN COMPOSITION 失效
公开(公告)号：JPH0641377A
公开(公告)日：1994-02-15
申请号：JP19869692
申请日：1992-07-24
申请人： SHOWA DENKO KK
发明人： TAKENOSHITA YOUICHIROU , AKITANI MITSUHIKO
IPC分类号： C08L25/08 , C08L33/24 , C08L35/00 , C08L51/00 , C08L51/04 , C08L55/00 , C08L55/02
摘要： PURPOSE:To provide a resin composition, good in moldability and excellent in balance among heat, flexure and impact resistances. CONSTITUTION:The heat-resistant resin composition is obtained by blending (A) 10-90 pts.wt. maleimide-based copolymer prepared by copolymerizing 30-95wt.% aromatic vinyl monomer with 70-5wt.% maleimide-based monomer and 0-40wt.% other vinyl monomers copolymerizable therewith with (B) 90-10 pts.wt. graft copolymer obtained by grafting 90-70 pts.wt. mixture composed of 70-80wt.% aromatic vinyl monomer and 30-20wt.% vinyl cyanide monomer onto 10-30 pts.wt. rubber-like polymer composed of 5-25wt.% styrene-butadiene rubber and 95-75wt.% polybutadiene rubber. The specific viscosity (etasp) of the graft polymer in the graft copolymer in chloroform solvent at 30 deg.C is 0.7-1.0dl/g.

12. 发明专利

JPS63234032A OPTICAL ELEMENT MADE OF SYNTHETIC RESIN 失效
公开(公告)号：JPS63234032A
公开(公告)日：1988-09-29
申请号：JP6580787
申请日：1987-03-23
申请人： SHOWA DENKO KK
发明人： ASUKE TETSUYA , SAEDA SHIGERU , TAKENOSHITA YOUICHIROU , YOSHIDA HARUO
IPC分类号： G02B1/04 , C08G75/02 , C08G75/04
摘要： PURPOSE:To obtain the titled element having highly balanced optical strain, optical unevenness, light transmittance, refractive index, heat-resistance, impact resistance, etc., by mixing a specific polymerizable monomer with a thiol compound at a specific ratio and hardening the mixture. CONSTITUTION:(A) A polymerizable monomer of formula (A is organic group; R -R are H or 1-8C alkyl; m is 1-7) [e.g. methyl (meth)acrylate] is mixed with (B) a thiol compound of formula (B)-(SH)n (B is organic group; n is 1-7) (e.g. ethanedithiol). The sum of the number (m) of vinyl groups in the component A and the number (n) of mercapto groups in the component B (m+n) is 3-8 and the ratio of the molar number of the vinyl group in the component A to the molar number of the mercapto group in the component B is 1.4-4. The mixture is hardened usually by cast polymerization process to obtain the objective element.

13. 发明专利

JPS62218904A PROCESSING METHOD FOR POLARIZING MATERIAL 失效
公开(公告)号：JPS62218904A
公开(公告)日：1987-09-26
申请号：JP6080886
申请日：1986-03-20
申请人： SHOWA DENKO KK
发明人： TAKENOSHITA YOUICHIROU , YOSHIDA HARUO , INASAWA SHINTARO , SUZUKI MINORU
IPC分类号： G02B5/30
摘要： PURPOSE:To obtain a thin and lightweight polarizing material by using a polyamide-based resin in combination with a PVA resin, coating a specific photosetting resin on the resultant polarizing material and curing the coating. CONSTITUTION:A polymn. initiator as well as the photosetting resin compsn. consisting of a polyene compd. having at least one kind of the group selected from a group consisting of an amide bond group, imide bond group, etc., and/or multifunctional maleic acid deriv. and/or polythiol compd. in addition to a multifunctional (meth)acrylate having at least one kind of the group selected from the group consisting of an amide bond group, imide bond group, etc., are coasted on the polarizing material and the coating is photoset. For example, 4.0kg PVA and 6.0kg 6-nylon as the polyamide resin are kneaded and extruded at 235 deg.C resin temp. by a 30mmphi twin-screw extruder. The extruded resins are cooled to form pellets. Such resin compsn. is formed to a film having 20mum thickness by a T-die molding machine. The film contg. the polarizing element obtd. by immersing the above-mentioned film for 2sec in an water/methanol (50/50v/v) soln. contg. of 2wt% iodine, 10wt% potassium iodide is stretched 2.5 times at a room temp.

14. 发明专利

JPS62178907A POLARIZING MATERIAL 失效
公开(公告)号：JPS62178907A
公开(公告)日：1987-08-06
申请号：JP2026686
申请日：1986-02-03
申请人： SHOWA DENKO KK
发明人： INASAWA SHINTARO , SUZUKI MINORU , TAKENOSHITA YOUICHIROU , YOSHIDA HARUO
IPC分类号： G02B5/30
摘要： PURPOSE:To obtain an excellent polarizing material by combining a PVA resin and polyamide resin. CONSTITUTION:The resin compsn. consisting of at least the PVA resin and the polyamide resin is the polarizing material which contains a polarizing element and is subjected to anisotropic stretching. The compsn. ratio of the PVA resin and the polyamide resin is preferably compounded at a ratio of 20-90pts. wt. PVA resin and 80-10pts.wt. polyamide resin. The melt flow characteristic of the blend decreases and mixing or working properties are deteriorated if the content of the PVA resin exceeds 90pts.wt. Satisfactory polarizing performance is not obtd. if the content is below 20pts.wt. The resulted resin compsn. is molded by a molding method generally used for molding ordinary thermoplastic resins and is subjected to stretching with is not isotropic. More specifically, the molding is stretched >=2 times, more preferably 2.5-7 times most generally in a uniaxial direction.

15. 发明专利

JPS621708A COMPOSITION FOR RESIN HAVING HIGH REFRACTIVE INDEX 失效
公开(公告)号：JPS621708A
公开(公告)日：1987-01-07
申请号：JP14012985
申请日：1985-06-28
申请人： SHOWA DENKO KK
发明人： TAKENOSHITA YOUICHIROU , TAKOSHI HIROTAKA , YOSHIDA HARUO
IPC分类号： C08F220/00 , C08F212/06 , C08F220/10 , C08F220/18 , C08F220/20
摘要： PURPOSE:A composition for providing a resin having high refractive index for lenses, having improved heat resistance, high refractive index, improved surface hardness, solvent resistance, dyeing properties, etc., containing specific four polymerizable monomers. CONSTITUTION:(A) A composition containing (A) 51-80wt% polymerizable monomer (its mixture) shown by the formula I [R is H or CH3; R is -C2H4O-, -CH(CH3)CH2O-; X and Y are Cl, Br, CH3, CH3O or C6H5O; k+l=1-5; m is 1-3], (B) 0-40wt% polymerizable monomer (its mixture) shown by the formula II [R is H or CH3; R is -C2H4-, -CH(CH3)CH2O- or -CH2CH(OH)CH2O-; Ar is bihydric phenolic residue containing no halogen; n is 1-3; p is 0-4], (C) 5-30wt% polymerizable monomer (its mixture) shown by the formula III (R is H or CH3; R is saturated hydrocarbon group; q is 2-6) having >=1.450 refractive index and (D) 5-30wt% polymerizable monomer (its mixture) shown by the formula IV (Z is CH3 or C2H5; s is 1 or 2; t is 0 or 1 and s+t=2) based on 100pts.wt. total amounts of the components A-D.

16. 发明专利

JPS60197711A HIGH-REFRACTIVE INDEX RESIN COMPOSITION 失效
公开(公告)号：JPS60197711A
公开(公告)日：1985-10-07
申请号：JP5347784
申请日：1984-03-22
申请人： SHOWA DENKO KK
发明人： TAKENOSHITA YOUICHIROU , TAGOSHI HIROTAKA , YOSHIDA HARUO
IPC分类号： C08K5/52 , C08F2/44 , C08F20/00 , C08F20/10 , C08F20/26 , C08F220/30 , C08F222/20 , C08L33/00 , C08L33/02 , G02B1/04
摘要： PURPOSE:The titled composition excellent in curability of the inside of a lens, transparency, non-discolorability, surface hardness, solvent resistance, etc., prepared by adding an organic phosphite compound to a specified polymerizable monomer composition. CONSTITUTION:0.05-2pts.wt. organic phosphite compound of formula VII (wherein R are each H or a 2-15C saturated aliphatic hydrocarbon group) is added to 100pts.wt. composition comprising (A) 30-95wt% polymerizable monomers of formula I and/or II (wherein R is H or CH3, R is -CH2CH2O-, formula III, or formula IV, X is H, Cl, Br, CH3, CH3O, C6H5, or C6H5O, and m is 1 or 3, provided that m is 1 when R is formula IV), (B) 0-70wt% polymerizable monomer of formula V (wherein R is R , R is R , Ar is a bivalent phenol residue, n is 1-3, p is 0-4, provided that p is 0 when R is -CH2CH2O- or formula III, and n is 1 when R is formula IV) and (C) 5-30wt% polymerizable monomer of a refractive index >=1.450, represented by formula VI (wherein R is R , R is a q-valent saturated aliphatic hydrocarbon group which may include an ether, ester or alcohol, and q is 2-6).

17. 发明专利

JPS60104122A COMPOSITION FOR RESIN HAVING HIGH REFRACTIVE INDEX 失效
公开(公告)号：JPS60104122A
公开(公告)日：1985-06-08
申请号：JP20917683
申请日：1983-11-09
申请人： SHOWA DENKO KK
发明人： TAGOSHI HIROTAKA , TAKENOSHITA YOUICHIROU , YOSHIDA HARUO
IPC分类号： C08L33/04 , C08G59/00 , C08G59/40 , C08L33/00 , C08L63/00
摘要： PURPOSE:To provide the titled composition capable of giving a molded article having excellent high-speed moldability, surface hardness, solvent resistance, etc., by compounding a specific polymerizable composition containing (meth)acrylate, etc. having naphthyl skeleton with a bisphenol A epoxy resin having high molecular weight. CONSTITUTION:The objective composition is produced by compounding (A) 100pts.wt. of a polymerizable composition composed of (i) 30-95(wt)% monomer of formula I , (ii) 0-70% monomer of formula II and (iii) 5-30% monomer of formula III having a refractive index of >=1.450 (R , R and R are H or CH3; R and R are -CH2CH2O-, or group of formula IV or formula V; R is saturated aliphatic hydrocarbon group having an atomic valence of q and optionally containing ether, ester, etc.; m and n are 1-3; p is 0-4; q is 2-6) with (B) 0.1- 3.5pts.wt. of a high molecular weight resin of formula VI (r is 9-12) having a softening point of 120-160 deg.C measured by the Durran's mercury method, and obtained by the condensation of bisphenol A and epihalohydrin.

18. 发明专利

JP2007106994A Chloroprene-based polymer latex and method for producing the same 审中-公开
标题翻译：基于氯乙烯的聚合物及其生产方法
公开(公告)号：JP2007106994A
公开(公告)日：2007-04-26
申请号：JP2006249130
申请日：2006-09-14
申请人： Showa Denko Kk , 昭和電工株式会社
发明人： TAKENOSHITA YOUICHIROU , OGAWA NOBUKO
IPC分类号： C08F2/24 , A41D19/00 , A41D19/04 , C08F236/18 , C08K3/06 , C08K3/22 , C08K5/00 , C08L11/02
摘要： PROBLEM TO BE SOLVED: To provide a chloroprene-based polymer latex for gloves good in balance between softness stability with time, tensile strength and tensile elongation. SOLUTION: A method for producing the chloroprene-based polymer latex comprises the following process: 8-20 mass% of 2,3-dichlorobutadiene as a copolymerization monomer is copolymerized at a polymerization temperature(T) of 30-49°C, within such a range as to regulate the mass% of the 2,3-dichlorobutadiene by the function of T, so as to be 35-85 mass% of tetrahydrofuran insolubles in the final polymer. Thereby, the objective latex for gloves good in balance between softness stability and tensile properties such as tensile strength and tensile elongation is obtained. This latex is useful as a material for such gloves for which high-level softness stability is required as disposal gloves for medical use. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为柔性稳定性随时间，拉伸强度和拉伸伸长率之间的平衡提供氯丁橡胶类聚合物胶乳。解决方案：一种氯丁二烯系聚合物胶乳的制造方法，其特征在于，以聚合温度（T）30〜49℃共聚8-20质量％作为共聚单体的2,3-二氯丁二烯在通过T的作用调节2,3-二氯丁二烯的质量％的范围内，在最终聚合物中为35〜85质量％的四氢呋喃不溶物。因此，获得了良好的柔软度稳定性和拉伸性能如拉伸强度和拉伸伸长率之间良好平衡的手套用目标胶乳。该胶乳作为用于医疗用作处置手套所需的高级柔软度的手套的材料是有用的。版权所有（C）2007，JPO＆INPIT

19. 发明专利

JP2005154756A Polychloroprene based thermoplastic elastomer composition 审中-公开
标题翻译：基于聚氯乙烯的热塑性弹性体组合物
公开(公告)号：JP2005154756A
公开(公告)日：2005-06-16
申请号：JP2004320241
申请日：2004-11-04
申请人： Showa Denko Kk , 昭和電工株式会社
发明人： TAKENOSHITA YOUICHIROU
IPC分类号： C08L11/00
摘要： PROBLEM TO BE SOLVED: To provide a polychloroprene based thermoplastic elastomer composition having self-extinguishing property and reusable in its original application.
SOLUTION: The thermoplastic elastomer composition comprises (A) a chloroprene hompolymer or a copolymer of chloroprene with a monomer copolymerizable with chloroprene and having a specific crystallization rate, (B) a copolymer of chloroprene, and a (meth)acrylate having two or more ethylenenically unsaturated functional groups and a monomer copolymerizable with these monomers and containing 70% or more of toluene insoluble component, wherein the composition is obtained by blending (A) and (B) in the mass ratio of (A):(B)=80-15:20-85 and (A)+(B)=100 mass.%. The molded product of the composition and the composition preferably comprises (C) a copolymer of chloroprene and 2, 3-dichloro-1, 3-butadiene and a monomer copolymerizable with these.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供具有自熄性的聚氯丁二烯基热塑性弹性体组合物，并且可以在其原始应用中重复使用。解决方案：热塑性弹性体组合物包含（A）氯丁二烯均聚物或氯丁二烯与可与氯丁二烯共聚的单体的共聚物，并具有特定的结晶速率，（B）氯丁二烯和（甲基）丙烯酸酯的共聚物具有两个或更多的烯键式不饱和官能团和可与这些单体共聚并含有70％或更多的甲苯不溶性成分的单体，其中通过以（A）和（B）的质量比混合（A）和（B） = 80-15：20-85和（A）+（B）= 100质量％。组合物和组合物的模塑产品优选包含（C）氯丁二烯和2,3-二氯-1,3-丁二烯的共聚物以及可与其共聚的单体。版权所有（C）2005，JPO＆NCIPI

20. 发明专利

JPH05155940A PRODUCTION OF STYRENE COPOLYMER 失效
公开(公告)号：JPH05155940A
公开(公告)日：1993-06-22
申请号：JP31794591
申请日：1991-12-02
申请人： SHOWA DENKO KK
发明人： TAKENOSHITA YOUICHIROU , KIMURA HIDEYA
IPC分类号： C08F2/18 , C08F2/20 , C08F212/10
摘要： PURPOSE:To prevent the growth of scales deposited on the inside wall of a polymerizer by performing a specified agitation operation before starting the polymerization in the production of a styrene copolymer by an aqueous suspension polymerization. CONSTITUTION:This process is to polymerize a monomer mixture comprising an aromatic vinyl monomer, a vinyl cyanide monomer and other vinyl monomers copolymerizable therewith in an aqueous suspension system, wherein the mixture and water are first fed and agitated, and the monomer is then dispersed in the water by feeding a suspension stabilizer. The agitation is desirably performed at 0-65 deg.C for 5-120min after at least 80wt.% monomer mixture and at least 90wt.% water are fed to the system.

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