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1. 发明专利

JP2017078168A アクリル系樹脂フィルムおよびその製造方法审中-公开
公开(公告)号：JP2017078168A
公开(公告)日：2017-04-27
申请号：JP2016205678
申请日：2016-10-20
申请人：株式会社クラレ , Kuraray Co Ltd
发明人： KODERA JUMPEI , TSUJI KAZUTAKA , HIGASHIDA NOBORU , HOSHIBA TAKAO
IPC分类号： C08J5/18 , C08F297/02 , C08L33/12 , C08L53/00 , G02B5/30
摘要：【課題】表面平滑性が良好で、低ヘイズ、低黄色度、更にフィッシュアイ欠点も少ないという特徴を有するアクリル系樹脂フィルムおよびその製造方法を提供する。【解決手段】メタクリル酸メチルに由来する構造単位を80質量%以上有し、且つ220℃、せん断速度122/secにおける溶融粘度(η(A))が1500〜3500Pa・sであるメタクリル樹脂(A)を70質量%以上含む。表面粗度が5nm以下、ヘイズが0.7%以下、黄色度が1.0以下、0.03mm2以上の大きさのフィッシュアイ欠点が0.2個/m2以下である。【選択図】なし

2. 发明专利

JP2005247949A Methacrylic resin composition for optical member and optical member using the same 有权
标题翻译：用于光学构件的甲基丙烯酸树脂组合物和使用其的光学构件
公开(公告)号：JP2005247949A
公开(公告)日：2005-09-15
申请号：JP2004058535
申请日：2004-03-03
申请人： Kuraray Co Ltd , 株式会社クラレ
发明人： MIYAKE KATSUJI , KITAMURA KAORI , HOSHIBA TAKAO
IPC分类号： H05B33/02 , C08K5/00 , C08K5/04 , C08L33/10 , H01L51/50 , H05B33/14
摘要： PROBLEM TO BE SOLVED: To provide a methacrylic resin composition for an optical member, having excellent optical characteristics hardly causing discoloration and generation of a foreign matter by the heat at molding, having good mold releasability, hardly causing corrosion of a mold and contamination of the mold, and having good moldability.
SOLUTION: The methacrylic resin composition for the optical member comprises (a) 100 pts. by mass of a methacrylic polymer composed of 50-99.9 mass% methyl methacrylate unit and 0.1-50 mass% monomer unit copolymerizable therewith, (b) 0.001-0.5 pt. by mass of a compound represented by the general formula (wherein, R
1 , R
2 , R
3 and R
4 are each an OH group or OCOR
5 ; R
5 is an 8-23C alkyl group; with the proviso that the number of the OH groups in the R
1 , R
2 , R
3 and R
4 is ≤3), and (c) 0.001-0.2 pt. by mass of an ultraviolet absorber.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决问题的方案为了提供光学构件的甲基丙烯酸树脂组合物，具有优异的光学特性，几乎不会由于成型时的热而引起变色和异物的产生，具有良好的脱模性，几乎不引起模具的腐蚀，模具污染，成型性好。解决方案：用于光学部件的甲基丙烯酸树脂组合物包括（a）100个。的由50-99.9质量％甲基丙烯酸甲酯单元组成的甲基丙烯酸类聚合物和可与其共聚的0.1-50质量％单体单元，（b）0.001-0.5重量份。的由通式表示的化合物（其中R 1，R 2，R 2，R SP 3， SP>各自为OH基团或OCOR 5 ; R 5为8-23C烷基;条件是R SP中的OH基数 > 1 ，R 2 ，R 3 和R 4 ≤3）和（c）0.001-0.2 pt。的紫外线吸收剂。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004263034A Methacrylic resin composition and laminate using the same 审中-公开
公开(公告)号：JP2004263034A
公开(公告)日：2004-09-24
申请号：JP2003053352
申请日：2003-02-28
申请人： Kuraray Co Ltd , 株式会社クラレ
发明人： KURIBAYASHI RYOTARO , HOSHIBA TAKAO
IPC分类号： B32B27/30 , C08F265/06 , C08L33/10
摘要： PROBLEM TO BE SOLVED: To obtain a methacrylic resin composition showing excellent impact resistance, slip nature and delustering property, and suitable as a coating layer for a laminate. SOLUTION: The above features are attained by the methacrylic resin composition consisting of a methacrylic resin (A), acrylic multilayer-structured polymer particles (B), and silicone fine particles (C) having a mean particle size of 0.2-20 μm and by the laminate having a layer consisting of the methacrylic resin composition. COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2004231898A Resin composition with improved ultrasonic welding processability 审中-公开
公开(公告)号：JP2004231898A
公开(公告)日：2004-08-19
申请号：JP2003025040
申请日：2003-01-31
申请人： Kuraray Co Ltd , 株式会社クラレ
发明人： KURIBAYASHI RYOTARO , HOSHIBA TAKAO
IPC分类号： C08J5/12 , B29C65/08 , B29K67/00 , C08L67/00 , C08L87/00
CPC分类号： B29C66/71
摘要： PROBLEM TO BE SOLVED: To obtain a resin composition having improved ultrasonic welding performance of which the resin has inadequate bonding by ultrasonic welding.
SOLUTION: In the resin composition having improved ultrasonic welding processability, a polymer particle of a multi-layered structure having a hard resin layer as the outermost layer and a rubber layer at the inside is dispersed in a thermoplastic resin selected from polycondensation resins. The polymer particle of a multi-layered structure is in an amount of 0.5-50 mass% based on the total mass of the thermoplastic resin and the polymer particle of a multi-layered structure and a peak temperature of the main dispersion of the loss tangent (tanδ) stemming from a rubber layer of the polymer particle of a multi-layered structure in dynamic viscoelasticity measured with sinusoidal wave vibration of 1 Hz frequency is -60 to 0°C.
COPYRIGHT: (C)2004,JPO&NCIPI

5. 发明专利

JP2004210907A Methacrylic resin composition for optical member and optical member using the same 有权
公开(公告)号：JP2004210907A
公开(公告)日：2004-07-29
申请号：JP2002380673
申请日：2002-12-27
申请人： Kuraray Co Ltd , 株式会社クラレ
发明人： MIYAKE KATSUJI , HOSHIBA TAKAO
IPC分类号： G02B1/04 , C08K5/00 , C08L33/12
摘要： PROBLEM TO BE SOLVED: To provide a methacrylic resin composition for optical use and optical members using the same, slight in discoloration with high transparency retention under use of a high-luminance light source lamp or under long-time continuous use, good in mold releasability with slight mold corrosion and no mold stain occurrence.
SOLUTION: The methacrylic resin composition for optical members comprises 100 pts. mass of (a) a methacrylic polymer composed of 60-99.9 mass% of methyl methacrylate units and 0.1-40 mass% of monomer units copolymerizable therewith, 0.001-0.1 pt. mass of (b) an ultraviolet absorber with the maximum value of molar extinction coefficient εmax at wavelengths 380 to 450 nm being 5-600 dm
3 ×mol
-1 cm
-1 and 0.001-0.1 pt. mass of (c) a phosphorus-based antioxidant. The optical members are obtained by molding the methacrylic resin composition.
COPYRIGHT: (C)2004,JPO&NCIPI

6. 发明专利

JP2004107445A Acrylic polymer coagulated composition and acrylic sol using it 有权
公开(公告)号：JP2004107445A
公开(公告)日：2004-04-08
申请号：JP2002270370
申请日：2002-09-17
申请人： Kuraray Co Ltd , 株式会社クラレ
发明人： MIYAKE KATSUJI , HOSHIBA TAKAO
IPC分类号： C08L51/00 , C08F265/06
摘要： PROBLEM TO BE SOLVED: To provide an acrylic polymer coagulated composition that does not generate hydrogen chloride on incineration like a vinyl chloride sol composition, is excellent in storage stability and bleed-out resistance and forms a smooth hump-free coating film and an acrylic sol using it.
SOLUTION: The acrylic polymer coagulated composition is obtained by latex-mixing two kinds of acrylic polymers: one comprising (I) an acrylic crosslinked polymer mainly comprising alkyl acrylate units and (II) an acrylic multistage polymer mainly comprising methyl methacrylate units. The composition is used for the acrylic sol.
COPYRIGHT: (C)2004,JPO

7. 发明专利

JP2004115737A Dry-type joint material 有权
公开(公告)号：JP2004115737A
公开(公告)日：2004-04-15
申请号：JP2002284310
申请日：2002-09-27
申请人： Kuraray Co Ltd , 株式会社クラレ
发明人： NARUSE TATSUYA , HOSHIBA TAKAO
IPC分类号： E04B1/684 , C09K3/10
摘要： PROBLEM TO BE SOLVED: To provide a dry-type joint material having weather resistance durable to outdoor use, small in environmental load, and excellent in adhesion with a silicone-based sealant even without giving pretreatment for enhancing adhesion with the sealant before application.
SOLUTION: This dry-type joint material is obtained by heat fusing a flexible part comprising a multilayer structure polymer particle and a rigid core part comprising a thermoplastic resin other than polyolefinic resin having higher hardness than the flexible part, where the multilayer structure polymer particle has a rubber component layer (I) formed by copolymerization of a monomer mixture of an acrylate and a multifunctional monomer and a thermoplastic resin component layer (II) formed by polymerization of a monomer comprising a methacrylate, and further (1) the thermoplastic resin component constituting the outermost layer of the multilayer structure polymer particle has a glass transition temperature of ≥90°C and (2) a treatment for enhancing adhesion to the above sealant is given to the joint material.
COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2008291250A Method for producing (meth)acrylate-styrene copolymer 审中-公开
标题翻译：制备（甲基）丙烯酸 - 苯乙烯共聚物的方法
公开(公告)号：JP2008291250A
公开(公告)日：2008-12-04
申请号：JP2008114953
申请日：2008-04-25
申请人： Kuraray Co Ltd , 株式会社クラレ
发明人： MIYAKE KATSUJI , KONISHI HIROYUKI , HOSHIBA TAKAO
IPC分类号： C08F2/02 , C08F2/06 , C08F212/08 , C08F220/10 , G02B1/04
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a (meth)acrylate-styrene copolymer for optical member, which has excellent optical characteristics without discoloring or foreign matter generation by heat during molding and also has satisfactory releasability and excellent moldability without mold corrosion and mold contamination.
SOLUTION: The method for producing a (meth)acrylate-styrene copolymer comprises performing bulk polymerization or solution polymerization of a monomer mixture including 80-20% by mass of a (meth)acrylate-based monomer, 20-80% by mass of a styrene-based monomer, and 0-15% by mass of a vinyl-based monomer copolymerizable therewith by use of a polymerization initiator having a hydrogen drawing capability of 30% or less measured by α-methyl styrene dimer trapping method, performing the polymerization up to a conversion rate of 90% by mass or less, and removing a volatile component containing the monomers.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于制造光学部件的（甲基）丙烯酸酯 - 苯乙烯共聚物的方法，其具有优异的光学特性，而不会在模制过程中发生变色或异物产生，并且具有令人满意的脱模性和优异的成型性，而没有模具腐蚀和霉菌污染。（甲基）丙烯酸酯 - 苯乙烯共聚物的制造方法包括进行单体混合物的本体聚合或溶液聚合，所述单体混合物包含80〜20质量％的（甲基）丙烯酸酯类单体，20〜80％苯乙烯类单体的质量和0〜15质量％的通过使用通过α-甲基苯乙烯二聚体捕获法测定的具有30％以下的吸氢能力的聚合引发剂与其共聚的乙烯基系单体，进行聚合直至转化率为90质量％以下，除去含有单体的挥发性成分。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2005146139A Acrylic polymer powder, acrylic sol and molded product 审中-公开
标题翻译：丙烯酸聚合物粉末，丙烯酸溶胶和成型产品
公开(公告)号：JP2005146139A
公开(公告)日：2005-06-09
申请号：JP2003386400
申请日：2003-11-17
申请人： Kuraray Co Ltd , 株式会社クラレ
发明人： MIYAKE KATSUJI , HOSHIBA TAKAO , MURAMATSU NORIYUKI
IPC分类号： C08J3/16 , C08F2/00 , C08F220/00 , C08K5/00 , C08L33/12
摘要： PROBLEM TO BE SOLVED: To provide an acrylic polymer powder capable of producing an acrylic sol superior in storage stability, the molded product made from which has excellent mechanical strength, flexibility and retention of plasticizer, and then generates no gaseous hydrogen chloride when burned unlike the molded product made of a polyvinyl chloride sol, and to provide the acrylic sol and the molded product. SOLUTION: This acrylic polymer powder is produced by coagulating and drying an emulsion containing a polymer particle, the shell portion of which has a layer of cross-linked structure. The acrylic sol comprises the acrylic polymer powder. The molded product is produced from the acrylic sol. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：待解决的问题：为了提供能够生产具有优异的储存稳定性的丙烯酸溶胶的丙烯酸类聚合物粉末，由其制备的模塑产品具有优异的机械强度，柔韧性和增塑剂的保留性，然后当不产生气体氯化氢时与由聚氯乙烯溶胶制成的成型体不同，并且提供丙烯酸溶胶和模塑产品。解决方案：该丙烯酸类聚合物粉末通过凝结和干燥包含聚合物颗粒的乳液来制备，该聚合物颗粒的外壳部分具有一层交联结构。丙烯酸溶胶包含丙烯酸聚合物粉末。模制产品由丙烯酸溶胶制成。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2004224846A Acrylic polymer powder, acrylic sol and molded article 有权
公开(公告)号：JP2004224846A
公开(公告)日：2004-08-12
申请号：JP2003011755
申请日：2003-01-21
申请人： Kuraray Co Ltd , 株式会社クラレ
发明人： MIYAKE KATSUJI , HOSHIBA TAKAO
IPC分类号： C08J3/12 , C08F2/00 , C08F2/24 , C08F220/10 , C08F265/06 , C08J3/16 , C08K5/00 , C08L33/10
摘要： PROBLEM TO BE SOLVED: To provide acrylic polymer powder suitable for preparing an acrylic sol which does not produce hydrogen chloride gas on combustion differently from the case of a polyvinyl chloride sol composition and has excellent storage stability and excellent flowability, to provide the acrylic sol using the powder, and to provide a molded article comprising the acrylic sol.
SOLUTION: This acrylic polymer powder obtained by coagulating and drying a latex containing acrylic polymer particles is characterized by having an arithmetical average particle diameter of 5 to 100μm, a porosity of ≤70% and an integrated pore volume of ≤0.9 mL/g wherein the pores have diameters of ≥1μm. An acrylic sol comprises the acrylic polymer powder and a plasticizer. And the molded article obtained from the acrylic sol.
COPYRIGHT: (C)2004,JPO&NCIPI

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