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1. 发明授权

US11066544B2 Optical resin composition and molded article 有权
公开(公告)号：US11066544B2
公开(公告)日：2021-07-20
申请号：US15107941
申请日：2014-12-19
申请人： Kaneka Corporation
发明人： Fuminobu Kitayama
IPC分类号： C08L33/24 , C08L101/12 , C08F8/32 , C08F220/54 , C08L101/00 , C08L35/00 , C08F265/06 , G02B1/04
摘要： An optical resin composition includes a thermoplastic resin and a cross-linked structure-containing polymer. A photoelastic constant of the cross-linked structure-containing polymer and a photoelastic constant of the thermoplastic resin are opposite in sign, and a molded article with a thickness of 2 mm formed from the optical resin composition has a haze of 6% or less.

2. 发明授权

US10933614B2 Resin composition, and molded article and film thereof 有权
公开(公告)号：US10933614B2
公开(公告)日：2021-03-02
申请号：US16148631
申请日：2018-10-01
申请人： KANEKA CORPORATION
发明人： Fuminobu Kitayama , Haruki Koyama , Hiroki Sawada , Nagayoshi Adachi
IPC分类号： B32B27/30 , C08F265/06 , C08F8/48 , C08F220/14 , C08L51/00 , C08L33/04 , C08L33/24 , C08L33/12 , B32B7/022 , C08J5/18 , C08F8/30 , C08F220/18
摘要： An acrylic resin composition includes an acrylic resin and a graft copolymer. The graft copolymer includes an inner layer and an outer layer. The inner layer is a soft polymer (B) having, as structural units, a monomer mixture (b) containing 40 to 99 wt % of an alkyl acrylate ester, 1 to 60 wt % of benzyl (meth)acrylate, and 0 to 40 wt % of another monomer and 0.1 to 5 parts by weight of a polyfunctional monomer; and the outer layer is a hard polymer (C) having, as structural units, a monomer mixture (c) containing 60 to 100 wt % of an alkyl methacrylate ester, 0 to 10 wt % of benzyl (meth)acrylate, and 40 to 0 w % of another monomer and 0 to 10 parts by weight of a polyfunctional monomer.

3. 发明授权

US10174191B2 Resin material and film thereof 有权
公开(公告)号：US10174191B2
公开(公告)日：2019-01-08
申请号：US15038310
申请日：2014-11-21
申请人： KANEKA CORPORATION
发明人： Fuminobu Kitayama , Keisuke Hatano
IPC分类号： C08L33/14 , C08F265/06 , C08J5/18 , C08F8/48 , C08L25/04 , C08L101/00 , C08L51/00
摘要： The present invention provides a resin material and a film made of the resin material, the resin material being able to form a molded body having high transparency, excellent mechanical strength, few foreign matter defects, excellent heat stability, excellent solvent resistance, and extremely good appearance. The resin material contains a thermoplastic resin (A) and a polymer (B) satisfying the following conditions. That is, the polymer (B) is a graft copolymer obtained by multistep polymerization, and at least one step of the multistep polymerization is polymerization of a monomer mixture containing: a (meth)acrylic monomer having a ring structure; and (meth)acrylic acid and/or its salt.

4. 发明申请

US20150147550A1 NON-BIREFRINGENT RESIN MATERIAL AND FILM 审中-公开
标题翻译：非生物树脂材料和薄膜
公开(公告)号：US20150147550A1
公开(公告)日：2015-05-28
申请号：US14406086
申请日：2013-06-26
申请人： KANEKA CORPORATION
发明人： Fuminobu Kitayama , Nobuyoshi Maizuru , Keisuke Hatano
IPC分类号： C08J5/18
CPC分类号： C08J5/18 , C08F8/00 , C08F8/32 , C08F2810/20 , C08J2333/12 , C08J2351/00 , C08J2433/12 , C08J2451/00 , C08L33/06 , C08L33/08 , C08L33/12 , C08L33/24 , G02B1/04 , G02B1/041 , G02B1/045 , G02B6/0011 , G02B6/003 , Y10T428/25 , Y10T428/254 , C08F220/10 , C08L33/064 , C08L101/00 , C08L51/08 , C08L51/06
摘要： Disclosed herein is a non-birefringent resin material that is very small in both orientation birefringence and photoelastic birefringence, has high transparency, and is capable of providing a molded article having few foreign matter defects and a film made of such a material. The non-birefringent resin material contains a resin (A) and a polymer (B) and has an orientation birefringence of −1.7×10−4 to 1.7×10−4 and a photoelastic constant of −4×10−12 to 4×10−12 Pa−1.
摘要翻译：本文公开了非取向双折射树脂材料，其在取向双折射和光弹性双折射方面非常小，具有高透明度，并且能够提供少量异物缺陷的模制品和由这种材料制成的膜。非双折射树脂材料含有树脂（A）和聚合物（B），其取向双折射为-1.7×10-4〜1.7×10-4，光弹性常数为-4×10-12〜4× 10-12 Pa-1。

5. 发明授权

US10745505B2 Graft copolymer and acrylic resin composition containing same 有权
公开(公告)号：US10745505B2
公开(公告)日：2020-08-18
申请号：US16138245
申请日：2018-09-21
申请人： KANEKA CORPORATION
发明人： Mitsuru Nakamura , Fuminobu Kitayama
IPC分类号： C08F265/06 , C08F285/00 , C08L33/12 , C08J5/18
摘要： A graft copolymer includes: an inner layer made of a hard polymer (I) obtained by polymerizing a monomer mixture including 40 to 100 wt % of a methacrylate ester 0 to 15 wt % of an aromatic vinyl monomer, and 0 to 45 wt % of another copolymerizable monomer and 0.01 to 10 parts by weight of a polyfunctional monomer; an intermediate layer made of a soft polymer (II) obtained by polymerizing a monomer mixture including 60 to 100 wt % of an acrylate ester and 0 to 40 wt % of another copolymerizable monomer, 0.01 to 5 parts by weight of allyl (meth)acrylate, and a di(meth)acrylic compound; and an outer layer made of a hard polymer (III) obtained by polymerizing a monomer mixture including 40 to 100 wt % of a methacrylate ester and 60 to 0 wt % of another copolymerizable monomer and 0 to 10 parts by weight of a polyfunctional monomer.

6. 发明授权

US10578773B2 Optical resin composition and film 有权
公开(公告)号：US10578773B2
公开(公告)日：2020-03-03
申请号：US15100163
申请日：2014-11-27
申请人： KANEKA CORPORATION
发明人： Fuminobu Kitayama , Haruki Koyama
IPC分类号： G02B1/04 , C08J5/18 , C08F265/06 , C08L101/00
摘要： Disclosed herein are an optical resin composition whose orientation birefringence and photoelastic birefringence are both very low and which has high transparency and which provides a film having few surface defects and excellent mechanical strength, and a film comprising the optical resin composition. Also disclosed herein is a film that has optical isotropy and excellent transparency even after stretching.The optical resin composition contains a thermoplastic resin and a multistep-polymerized graft copolymer obtained by polymerizing, in the presence of crosslinked polymer-containing particles formed by polymerizing a monomer mixture containing a monomer represented by the following formula (4) and a polyfunctional monomer, a monomer mixture containing a monomer represented by the following formula (4) and another monofunctional monomer copolymerizable therewith.

7. 发明申请

US20160326289A1 OPTICAL THERMOPLASTIC RESIN AND FORMED BODY 审中-公开
标题翻译：光学热塑性树脂和成型体
公开(公告)号：US20160326289A1
公开(公告)日：2016-11-10
申请号：US15107958
申请日：2014-12-24
申请人： KANEKA CORPORATION
发明人： Fuminobu Kitayama , Nobuyoshi Maizuru , Keisuke Hatano
IPC分类号： C08F220/18 , C08K3/00 , G02B1/04 , C08J5/18
CPC分类号： C08F220/18 , C08F220/14 , C08F2220/185 , C08J5/18 , C08J2333/10 , C08J2333/12 , C08K3/013 , G02B1/04 , C08L33/08 , C08L33/10
摘要： An optical thermoplastic resin has a rate of reduction in melt viscosity of less than 20%, an orientation birefringence of −1.7×10−4 to 1.7×10−4, a photoelastic constant of −3.7×10−12 to 3.7×10−12 Pa−1, and, when formed into a 2 mm-thick formed body, has a haze of 1% or less.
摘要翻译：光学热塑性树脂的熔融粘度降低率小于20％，取向双折射率为-1.7×10 -4〜1.7×10 -4，光弹性常数为-3.7×10-12〜3.7×10- 12Pa-1，当形成2mm厚的成形体时，雾度为1％以下。

8. 发明申请

US20150247013A1 ACRYLIC RESIN FILM 审中-公开
标题翻译：丙烯酸树脂膜
公开(公告)号：US20150247013A1
公开(公告)日：2015-09-03
申请号：US14427586
申请日：2013-09-11
申请人： KANEKA CORPORATION
发明人： Haruki Koyama , Hirotsugu Yamada , Fuminobu Kitayama , Katsumi Yamaguchi
IPC分类号： C08J5/18 , B32B27/30 , B32B27/20
CPC分类号： C08J5/18 , B29C39/10 , B32B27/20 , B32B27/308 , B32B2551/00 , C08F265/06 , C08F285/00 , C08J7/047 , C08J2333/10 , C08J2333/24 , C08J2351/04 , C08J2421/00 , C08L51/04 , C08L2205/02 , C09D151/003 , G02B1/14 , Y10T428/254 , C08F2220/1825 , C08F220/14 , C08F212/08 , C08F220/40 , C08F220/18
摘要： Disclosed herein is a film that exhibits well-balanced physical properties such as high surface hardness, excellent transparency, excellent cracking resistance, and excellent anti-whitening on bending when laminated on a plastic molded body, and is therefore suitable for decorative molding applications. The film is an acrylic resin film obtained by forming, into a film, an acrylic resin composition containing an acrylic resin and a rubber-containing graft copolymer, the rubber-containing graft copolymer being obtained by polymerizing monomer components (B-1) to (B-4) in order so that rubber particles obtained by polymerizing (B-1) to (B-3) have an average particle size of 0.2 to 0.4 μm. The monomer component (B-1) comprises 40 to 100 wt % of an acrylate, 60 to 0 wt % of a monofunctional monomer copolymerizable therewith, and 0.05 to 10 parts by weight of a polyfunctional monomer. The monomer component (B-2) comprises 50 to 100 wt % of a methacrylate, 50 to 0 wt % of a monofunctional monomer copolymerizable therewith, and 0.05 to 10 parts by weight of a polyfunctional monomer. The monomer component (B-3) comprises 50 to 100 wt % of an acrylate, 50 to 0 wt % of a monofunctional monomer copolymerizable therewith, and 0.05 to 10 parts by weight of a polyfunctional monomer. The monomer component (B-4) comprises 40 to 100 wt % of a methacrylate and 60 to 0 wt % of a monofunctional monomer copolymerizable therewith.
摘要翻译：本文公开了当层压在塑料成型体上时，表现出高的表面硬度，优异的透明性，优异的抗开裂性和优异的弯曲抗白化性能的物理性能良好的膜，因此适用于装饰成型应用。该薄膜是通过将包含丙烯酸树脂和含橡胶的接枝共聚物的丙烯酸树脂组合物形成膜而获得的丙烯酸树脂膜，该含橡胶的接枝共聚物通过将单体成分（B-1）〜（ B-4），使得通过聚合（B-1）至（B-3）获得的橡胶颗粒的平均粒径为0.2〜0.4μm。单体成分（B-1）含有40〜100重量％的丙烯酸酯，60〜0重量％的可与其共聚的单官能单体，0.05〜10重量份的多官能单体。单体组分（B-2）包含50至100重量％的甲基丙烯酸酯，50至0重量％的可共聚的单官能单体和0.05至10重量份的多官能单体。单体成分（B-3）含有50〜100重量％的丙烯酸酯，50〜0重量％的可共聚的单官能单体和0.05〜10重量份的多官能单体。单体组分（B-4）包含40至100重量％的甲基丙烯酸酯和60至0重量％的可与其共聚的单官能单体。

9. 发明授权

US10598822B2 Optical resin material and optical film 有权
公开(公告)号：US10598822B2
公开(公告)日：2020-03-24
申请号：US14782243
申请日：2013-06-26
申请人： KANEKA CORPORATION
发明人： Fuminobu Kitayama , Nobuyoshi Maizuru , Keisuke Hatano
IPC分类号： G02B1/04 , C08L51/06 , C08F265/06 , C08J5/18 , G02B5/32 , B32B27/30 , G02B5/30
摘要： An object of the present invention is to provide an optical resin material and an optical film, which are very small in both orientation birefringence and photoelastic birefringence, excellent in transparency, have few defects due to foreign substances, and are excellent in heat resistance and mechanical strength. Provided is an optical resin material containing a graft copolymer (C) obtained by polymerizing a vinyl-based monomer mixture (B) in the presence of a vinyl-based polymer (A) having at least one crosslinked structure layer, wherein the graft copolymer (C) has an orientation birefringence of −15×10−4 to 15×10−4 and a photoelastic constant of −10×10−12 to 10×10−12 Pa−1.

10. 发明授权

US10184019B2 Optical thermoplastic resin and formed body 有权
公开(公告)号：US10184019B2
公开(公告)日：2019-01-22
申请号：US15107958
申请日：2014-12-24
申请人： Kaneka Corporation
发明人： Fuminobu Kitayama , Nobuyoshi Maizuru , Keisuke Hatano
IPC分类号： C08F220/18 , C08F220/14 , C08J5/18 , G02B1/04 , C08K3/013
摘要： An object of the present invention is to provide an optical thermoplastic resin having excellent transparency and color tone, and also excellent heat stability, as well as being extremely low in both orientation birefringence and photoelastic birefringence; and a formed body made of said resin. This optical thermoplastic resin has a rate of reduction in melt viscosity of less than 20%, an orientation birefringence of −1.7×10−4 to 1.7×10−4, a photoelastic constant of −2×10−12 to 2×10−12 Pa−1, and, when formed into a 2 mm-thick formed body, has a haze of 1% or less.

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