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1. 发明公开

EP1553107A1 Anti-fouling agent and method for producing the same 有权
标题翻译： FäulnisverhinderndesMittel und dessen Herstellung
公开(公告)号：EP1553107A1
公开(公告)日：2005-07-13
申请号：EP04029709.5
申请日：2004-12-15
申请人： Kuraray Co., Ltd.
发明人： Kato, Masaki , Somemiya, Kazuyuki , Kusudou, Takeshi , Fujiwara, Naoki
IPC分类号： C08F8/00 , C08F16/06
CPC分类号： C08F8/12 , C08F218/08 , C08F230/08
摘要： Disclosed is an anti-fouling agent which is superior in viscosity stability, water resistance of its film and ability of preventing a scale from depositing on the inner wall of a polymerization reactor and which can prevent the contamination of foreign substances into a polymeric product caused by exfoliation of a scale depositing on the inner wall of a polymerization reactor and exfoliation of the anti-fouling agent itself,
the anti-fouling agent comprising an aqueous solution containing a polyvinyl alcohol that is obtained through saponification of a polyvinyl ester that contains monomer units having a specific silyl group and that satisfies the following formulae (I) and (II):

370

wherein P indicates the viscosity-average degree of polymerization of the polyvinyl alcohol,
and S indicates the content (mole%) of the monomer units having a silyl group of formula (1) in the polyvinyl alcohol;

0.2/100 ≤ (A-B)/(B) ≤ 75/100 (II)

wherein A indicates the content (ppm) of silicon atoms in the polyvinyl alcohol,
and B indicates the content (ppm) of silicon atoms in the polyvinyl alcohol that was washed with sodium hydroxide-containing methanol and then washed with methanol by Soxhlet extraction.
摘要翻译：公开了一种抗粘结剂，其粘度稳定性优异，其耐水性和防止水垢沉积在聚合反应器内壁上的能力，并且能够防止外来物质被聚合产物污染在聚合反应器的内壁上沉积的垢的剥离和防污剂本身的剥离，防污剂包含含有聚乙烯醇的水溶液，所述水溶液是通过使含有单体单元的聚乙烯基酯皂化得到的，特定的甲硅烷基，其满足下式（I）和（II）：370

2. 发明公开

EP1516889A1 Polyvinyl alcohol based polymer and method of manufacturing the same 失效
标题翻译：聚合物聚乙烯醇和Verfahren zur Herstellung
公开(公告)号：EP1516889A1
公开(公告)日：2005-03-23
申请号：EP04021373.8
申请日：2004-09-08
申请人： Kuraray Co., Ltd.
发明人： Yanai, Hisamichi , Tokuda, Yoshihiro , Tokuyasu, Jin , Miyata, Kimiko , Fujiwara, Naoki , Kusudou, Takeshi
IPC分类号： C08J3/12 , C08F8/12 , C08F118/08
CPC分类号： C08J3/05 , C08F8/12 , C08J3/12 , C08J2329/04 , C08F118/08
摘要： The present invention provides polyvinyl alcohol based (PVA) whose solubility in water varies with a small temperature change to a sufficiently great degree. In manufacturing a polyvinyl alcohol based polymer by: progressing a transesterification reaction of a polyvinyl ester based polymer with alcohol in a liquid reaction mixture including the polyvinyl ester based polymer, the alcohol, and a basic compound; precipitating the polyvinyl ester based polymer, at least a part of which has been transesterified with the alcohol, out of the liquid reaction mixture; and further progressing the transesterification reaction in the liquid reaction mixture including the polyvinyl ester based polymer that has precipitated, the liquid reaction mixture has a temperature of 75°C to 150°C when the polyvinyl ester based polymer, at least a part of which has been transesterified, starts precipitating.
摘要翻译：本发明提供了其在水中的溶解度随着温度变化小到足够大程度而变化的聚乙烯醇（PVA）。在制造聚乙烯醇类聚合物时，通过以下方法制造聚乙烯醇类聚合物：在含有聚乙烯基酯类聚合物，醇类和碱性化合物的液体反应混合物中进行聚乙烯酯系聚合物与醇的酯交换反应; 将其至少一部分与醇酯交换的聚乙烯基酯类聚合物从液体反应混合物中沉淀出来; 并进一步推进含有沉淀的聚乙烯基酯类聚合物的液体反应混合物中的酯交换反应，当聚乙烯基酯类聚合物的至少一部分具有被酯交换，开始沉淀。

3. 发明公开

EP3527619A1 POLYVINYL ACETAL COMPOSITION 有权转让
公开(公告)号：EP3527619A1
公开(公告)日：2019-08-21
申请号：EP19166866.4
申请日：2015-04-03
申请人： Kuraray Co., Ltd.
发明人： Asanuma, Yoshiaki , Kusudou, Takeshi
IPC分类号： C08L29/14 , B32B17/10 , B32B27/30 , C03C27/12 , C08K5/06
摘要： Provided herein is a composition that includes a compound (I), and one or more diester compounds (II) selected from compounds represented by formula 1. The compound (I) and the diester compound (II) are contained in X parts by mass and Y parts by mass, respectively, with respect to 100 parts by mass of a polyvinyl acetal having an average amount of residual hydroxyl group of 15 to 50 mol%. In the composition, X = 3 to 100, Y = 5 to 60, and X + Y = 42 to 120. The composition does not involve bleeding of a plasticizer even when stored at low temperature, or cause problems due to extraction of a component even when brought into contact with water. The composition can thus develop desirable sound insulation performance when used as an intermediate film for laminated glass.

4. 发明授权

EP1099672B1 Ceramic-molding binder 有权
标题翻译：粘合剂陶瓷角线
公开(公告)号：EP1099672B1
公开(公告)日：2005-07-20
申请号：EP00123866.6
申请日：2000-11-02
申请人： Kuraray Co., Ltd.
发明人： Kusudou, Takeshi , Akasawa, Toshiyuki
IPC分类号： C04B35/634 , C04B35/26 , C08K3/22 , C08F8/16 , C08F8/12
CPC分类号： C04B35/63416 , C04B35/26 , C04B35/634 , Y02P30/48

5. 发明公开

EP1099672A2 Ceramic-molding binder 有权
标题翻译：粘合剂陶瓷角线
公开(公告)号：EP1099672A2
公开(公告)日：2001-05-16
申请号：EP00123866.6
申请日：2000-11-02
申请人： Kuraray Co., Ltd.
发明人： Kusudou, Takeshi , Akasawa, Toshiyuki
IPC分类号： C04B35/634 , C04B35/26
CPC分类号： C04B35/63416 , C04B35/26 , C04B35/634 , Y02P30/48
摘要： A ceramic-molding binder includes a vinyl alcohol polymer having an ethylene unit content of 2 to 19 mole %, a polymerization degree of 200 to 2,000, a degree of saponification of 80 to 99.99 mole %, and a carboxylic acid and lactone ring content of 0.02 to 0.4 mole %. The use of the ceramic-molding binder provides green moldings with better formability and handling properties during the formation of smaller green moldings of more complex shape, and also provides ceramic products of good quality, higher yields, and fewer ceramic cracks when obtained by sintering such green moldings.

6. 发明授权

EP1447416B1 Polyvinyl acetal and its use 有权
标题翻译：聚乙烯醇缩醛和其使用
公开(公告)号：EP1447416B1
公开(公告)日：2010-03-03
申请号：EP04000937.5
申请日：2004-01-17
申请人： Kuraray Co., Ltd.
发明人： Kumaki, Yousuke , Kusudou, Takeshi , Fujiwara, Naoki , Papenfuhs, Bernd , Jonas, Simon
IPC分类号： C08F8/28
CPC分类号： C09D11/10 , C04B35/01 , C04B35/2675 , C04B35/2683 , C04B35/44 , C04B35/443 , C04B35/462 , C04B35/465 , C04B35/4682 , C04B35/47 , C04B35/472 , C04B35/486 , C04B35/495 , C04B35/547 , C04B35/56 , C04B35/58 , C04B35/5805 , C04B35/6342 , C04B2235/3236 , C04B2235/5445 , C04B2235/6025 , C04B2235/61 , C08F8/28 , C08F8/48 , C08F216/38 , C08F226/12 , C09D11/106 , C09D129/14 , C08F118/08

7. 发明授权

EP1516889B8 Polyvinyl alcohol based polymer and method of manufacturing the same 失效
标题翻译：聚乙烯醇的聚合物及其制备方法
公开(公告)号：EP1516889B8
公开(公告)日：2009-04-08
申请号：EP04021373.8
申请日：2004-09-08
申请人： KURARAY CO., LTD.
发明人： Yanai, Hisamichi , Tokuda, Yoshihiro , Tokuyasu, Jin , Miyata, Kimiko , Fujiwara, Naoki , Kusudou, Takeshi
IPC分类号： C08J3/12 , C08F8/12 , C08F118/08
CPC分类号： C08J3/05 , C08F8/12 , C08J3/12 , C08J2329/04 , C08F118/08

8. 发明授权

EP1553107B1 Anti-fouling agent and method for producing the same 有权
标题翻译：防污剂及其制备方法
公开(公告)号：EP1553107B1
公开(公告)日：2008-05-21
申请号：EP04029709.5
申请日：2004-12-15
申请人： Kuraray Co., Ltd.
发明人： Kato, Masaki , Somemiya, Kazuyuki , Kusudou, Takeshi , Fujiwara, Naoki
IPC分类号： C08F8/00 , C08F16/06
CPC分类号： C08F8/12 , C08F218/08 , C08F230/08

9. 发明授权

EP0801107B1 Polyvinyl alcohol shaped article 失效
标题翻译：由聚乙烯醇制成的模塑制品
公开(公告)号：EP0801107B1
公开(公告)日：1999-12-01
申请号：EP97105842.5
申请日：1997-04-09
申请人： KURARAY CO., LTD.
发明人： Nagao, Masahiro , Nakamae, Masato , Kusudou, Takeshi , Miyazaki, Hirotoshi
IPC分类号： C08L29/04
CPC分类号： C08L29/04 , C08L21/00 , C08L51/00 , C08L2666/24 , C08L2666/04

10. 发明公开

EP0801107A1 Polyvinyl alcohol shaped article 失效
标题翻译： GeformteGegenständeaus聚乙烯醇
公开(公告)号：EP0801107A1
公开(公告)日：1997-10-15
申请号：EP97105842.5
申请日：1997-04-09
申请人： KURARAY CO., LTD.
发明人： Nagao, Masahiro , Nakamae, Masato , Kusudou, Takeshi , Miyazaki, Hirotoshi
IPC分类号： C08L29/04
CPC分类号： C08L29/04 , C08L21/00 , C08L51/00 , C08L2666/24 , C08L2666/04
摘要： Disclosed herein is a polyvinyl alcohol shaped article which comprises a polyvinyl alcohol (A) and rubber particles (B), said rubber particles (B) comprising a rubber component having a glass transition temperature of 5°C or less and an average particle diameter of 5 µm or less and a polyvinyl alcohol (C) being bonded to the surface of said rubber component, with the weight ratio of said rubber component on the basis of the total weight of said polyvinyl alcohols being in the range of 0.03 to 2.
The polyvinyl alcohol shaped article of the present invention has a high impact strength at low temperatures and in low humidity, and also has a high strength and Young's modulus in high humidity, and has an excellent appearance.
摘要翻译：本发明公开了一种聚乙烯醇成型制品，其包含聚乙烯醇（A）和橡胶颗粒（B），所述橡胶颗粒（B）包含玻璃化转变温度为5℃或更低的橡胶组分，平均粒径为 5μm以下的聚乙烯醇（C）与所述橡胶成分的表面粘合，所述橡胶成分的重量比基于所述聚乙烯醇的总重量在0.03〜2的范围内。本发明的聚乙烯醇成型制品在低温和低湿度下具有高冲击强度，并且在高湿度下也具有高强度和杨氏模量，并具有优异的外观。

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