公开(公告)号：US20170036431A1

公开(公告)日：2017-02-09

申请号：US15125624

申请日：2015-03-11

Applicant: LINTEC CORPORATION

Inventor： Junichi NAKAMURA ,  Yusuke MIYATAKE ,  Naoki TAYA ,  Takeshi KONDO

IPC: B32B27/32 ,  B32B27/08 ,  C09J7/02 ,  B32B7/12

CPC classification number: B32B27/32 ,  B32B7/12 ,  B32B27/08 ,  B32B27/325 ,  B32B2270/00 ,  B32B2274/00 ,  B32B2307/51 ,  B32B2307/54 ,  B32B2457/14 ,  C09J7/29 ,  C09J2201/162 ,  C09J2203/326 ,  C09J2421/006 ,  C09J2423/006 ,  C09J2423/046 ,  C09J2423/106

Abstract: Base film for a dicing sheet comprises a cutting-fragment suppression layer and an expandable layer laminated on one main surface of the cutting-fragment suppression layer. The expandable layer comprises at least one resin-based unit layer. The at least one resin-based unit layer includes a resin-based unit layer that is disposed nearest to the cutting-fragment suppression layer. The resin-based unit layer comprises a linear polyethylene, polypropylene, and thermoplastic elastomer. The cutting-fragment suppression layer comprises a ring-containing resin that is a thermoplastic resin having at least one type of an aromatic series-based ring and an aliphatic series-based ring and an acyclic olefin-based resin that is an olefin-based thermoplastic resin other than the ring-containing resin. The base film for such a dicing sheet is excellent in the expandability and recoverability.

Abstract translation: 用于切割片的基底膜包括层压在切割片段抑制层的一个主表面上的切割片段抑制层和可扩展层。 可膨胀层包括至少一个基于树脂的单元层。 至少一个基于树脂的单元层包括最靠近切割片断抑制层设置的基于树脂的单元层。 树脂基单元层包含线性聚乙烯，聚丙烯和热塑性弹性体。 切割片抑制层包括含有环氧树脂，其为具有至少一种芳族系列基环和脂族系列基环的热塑性树脂和作为烯烃类热塑性塑料的非环状烯烃类树脂 除含环树脂以外的树脂。 用于这种切割片的基膜具有优异的可扩展性和可恢复性。

公开(公告)号：US20160297180A1

公开(公告)日：2016-10-13

申请号：US15037537

申请日：2014-11-07

Applicant: LINTEC CORPORATION

Inventor： Junichi NAKAMURA ,  Kentaro MIYAZAKI ,  Naoki TAYA

IPC: B32B27/08 ,  B32B27/32 ,  B32B27/30 ,  C09J7/02

CPC classification number: B32B27/08 ,  B29C48/21 ,  B29K2023/0633 ,  B29K2023/08 ,  B29K2105/0085 ,  B29L2007/008 ,  B32B7/02 ,  B32B7/06 ,  B32B7/12 ,  B32B25/08 ,  B32B27/30 ,  B32B27/308 ,  B32B27/32 ,  B32B27/325 ,  B32B27/36 ,  B32B2250/03 ,  B32B2250/24 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2270/00 ,  B32B2274/00 ,  B32B2307/51 ,  B32B2405/00 ,  B32B2457/14 ,  C09J7/29 ,  C09J2201/122 ,  C09J2201/162 ,  C09J2203/326 ,  C09J2400/226 ,  C09J2423/046 ,  C09J2433/006

Abstract: A base film (2) includes an expandable layer (B) laminated on a cutting-fragment suppression layer (A) and having a laminate structure of a plurality of resin-based sublayers. The resin-based sublayer (B1) disposed nearest to the cutting-fragment suppression layer (A) has a stress-relaxation rate (R1) after 5 minutes of 10%-stretching. The resin-based sublayer (B2) other than the resin-based sublayer (B1) disposed nearest to the cutting-fragment suppression layer (A) has a stress-relaxation rate (R2) after 5 minutes of 10%-stretching. The cutting-fragment suppression layer (A) contains a ring-containing resin (a1) that is a thermoplastic resin having at least one type of an aromatic series-based ring and an aliphatic series-based ring and an acyclic olefin-based resin (a2) that is an olefin-based thermoplastic resin other than the ring-containing resin (a1).

Abstract translation: 基膜（2）包括层压在切割片抑制层（A）上并具有多个树脂基亚层的层叠结构的可膨胀层（B）。 最靠近切割片抑制层（A）设置的树脂基亚层（B1）在10％拉伸5分钟之后具有应力松弛率（R1）。 除了最靠近切割片抑制层（A）设置的树脂基亚层（B1）以外的树脂基亚层（B2）在10％拉伸5分钟之后具有应力松弛率（R2）。 切断片抑制层（A）含有含有芳香族系的环和脂肪族系列系的环和非环状烯烃类树脂中的至少一种的热塑性树脂的含环树脂（a1） a2），其是除含环树脂（a1）以外的烯烃系热塑性树脂。