公开(公告)号：US20170045655A1

公开(公告)日：2017-02-16

申请号：US15124882

申请日：2015-05-01

Applicant: SABIC Global Technologies B.V.

Inventor： Jian Zhou ,  Adel Bastawros ,  Wei Feng ,  Zhi Wang ,  Yuan Zhou

IPC: G02B5/30 ,  G02F1/1335 ,  B29C59/02 ,  B29D11/00 ,  B29C47/06 ,  B29C47/88

CPC classification number: G02B5/305 ,  B29C47/065 ,  B29C47/8845 ,  B29C59/026 ,  B29D11/00644 ,  B29K2995/0026 ,  B29L2009/00 ,  B29L2011/0066 ,  B32B27/08 ,  B32B27/302 ,  B32B27/308 ,  B32B27/325 ,  B32B27/36 ,  B32B27/365 ,  B32B2307/408 ,  B32B2307/412 ,  B32B2307/42 ,  B32B2307/538 ,  B32B2307/558 ,  B32B2457/202 ,  B32B2551/00 ,  G02B5/0221 ,  G02F1/133504 ,  G02F1/133536 ,  G02F2001/133545

Abstract: A coextruded multilayered thermoplastic article including: a first layer with a first surface texture, wherein the first layer comprises a first transparent thermoplastic polymer having a first stress optical coefficient (Cm1) measured at 20° C. above the glass transition temperature of the first polymer; a second layer located comprising a second transparent thermoplastic polymer having a second stress optical coefficient (Cm2) measured at 20° C. above the glass transition temperature of the second matrix;wherein a relation between the first stress optical coefficient and the second stress optical coefficient is Cm2>4(Cm1) (Formula A) wherein the thickness of the first layer measured from the highest peaks of the first surface texture to the second side of the first layer is greater than 1.5 times Rz of the first surface texture but less than or equal to 75% of the total thickness of the article.

Abstract translation: 一种共挤出多层热塑性制品，其包括：具有第一表面纹理的第一层，其中第一层包括第一透明热塑性聚合物，其具有在第一聚合物的玻璃化转变温度以上20℃下测量的第一应力光学系数（Cm1） ; 第二层，其包含第二透明热塑性聚合物，所述第二透明热塑性聚合物具有高于所述第二基体的玻璃化转变温度的20℃下测量的第二应力光学系数（Cm2）;其中所述第一应力光学系数和所述第二应力光学系数之间的关系 是Cm2> 4（Cm1）（式A），其中从第一表面纹理的最高峰到第一层的第二侧测量的第一层的厚度大于第一表面纹理的1.5倍Rz，但小于 或等于制品总厚度的75％。

公开(公告)号：US09720155B2

公开(公告)日：2017-08-01

申请号：US15124882

申请日：2015-05-01

Applicant: SABIC Global Technologies B.V.

Inventor： Jian Zhou ,  Adel Bastawros ,  Wei Feng ,  Zhi Wang ,  Yuan Zhou

IPC: G02B5/02 ,  G02B5/30 ,  B32B27/08 ,  B32B27/30 ,  B32B27/32 ,  B32B27/36 ,  B29C47/06 ,  B29C47/88 ,  B29C59/02 ,  B29D11/00 ,  G02F1/1335 ,  B29L9/00 ,  B29L11/00

CPC classification number: G02B5/305 ,  B29C47/065 ,  B29C47/8845 ,  B29C59/026 ,  B29D11/00644 ,  B29K2995/0026 ,  B29L2009/00 ,  B29L2011/0066 ,  B32B27/08 ,  B32B27/302 ,  B32B27/308 ,  B32B27/325 ,  B32B27/36 ,  B32B27/365 ,  B32B2307/408 ,  B32B2307/412 ,  B32B2307/42 ,  B32B2307/538 ,  B32B2307/558 ,  B32B2457/202 ,  B32B2551/00 ,  G02B5/0221 ,  G02F1/133504 ,  G02F1/133536 ,  G02F2001/133545

Abstract: A coextruded multilayered thermoplastic article including: a first layer with a first surface texture, wherein the first layer comprises a first transparent thermoplastic polymer having a first stress optical coefficient (Cm1) measured at 20° C. above the glass transition temperature of the first polymer; a second layer located comprising a second transparent thermoplastic polymer having a second stress optical coefficient (Cm2) measured at 20° C. above the glass transition temperature of the second matrix; wherein a relation between the first stress optical coefficient and the second stress optical coefficient is Cm2>4(Cm1) (Formula A) wherein the thickness of the first layer measured from the highest peaks of the first surface texture to the second side of the first layer is greater than 1.5 times Rz of the first surface texture but less than or equal to 75% of the total thickness of the article.