公开(公告)号：US20180104867A1

公开(公告)日：2018-04-19

申请号：US15841561

申请日：2017-12-14

Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION

Inventor： Jing GUAN ,  Yue DONG ,  Georges MOINEAU

IPC: B29C39/20 ,  B29C39/18

CPC classification number: B29C39/203 ,  B29C39/18 ,  B29K2075/00 ,  B29K2995/0077 ,  B29K2995/0087 ,  B29L2007/002 ,  B29L2009/005 ,  B29L2031/265 ,  Y10T428/1452 ,  Y10T428/1457 ,  Y10T428/1462 ,  Y10T428/1476 ,  Y10T428/2495

Abstract: A polymer sheet includes a polyurethane core. The polyurethane core has a first major surface and a second major surface opposite the first major surface. The polymer sheet can have at least one functional layer overlying a major surface. The polymer sheet has a thickness tPS. The polyurethane core has a thickness tPC. In embodiments tPC can be at least 0.3 tPS. The polyurethane core can have at least one of the following property: (i) a Scratch Resistance Rating, as further described herein, of not greater than about 10 wt %, (ii) an elongation at break of at least 200%, (iii) a tensile strength at break of at least 0.3 MPa, (iv) a loss of tensile strength of not greater than about 30% when exposed to UV light according to standard SAE J1960 (Rev. August 2003). The polymer sheet can be used for gaskets or bonding tapes.

公开(公告)号：US20170334103A1

公开(公告)日：2017-11-23

申请号：US15668330

申请日：2017-08-03

Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION

Inventor： Jing GUAN ,  Yue DONG ,  Georges MOINEAU

IPC: B29C39/20 ,  B29C39/18 ,  B29K75/00 ,  B29L7/00 ,  B29L31/26 ,  B29L9/00

CPC classification number: B29C39/203 ,  B29C39/18 ,  B29K2075/00 ,  B29K2995/0077 ,  B29K2995/0087 ,  B29L2007/002 ,  B29L2009/005 ,  B29L2031/265 ,  Y10T428/1452 ,  Y10T428/1457 ,  Y10T428/1462 ,  Y10T428/1476 ,  Y10T428/2495

Abstract: A polymer sheet includes a polyurethane core. The polyurethane core has a first major surface and a second major surface opposite the first major surface. The polymer sheet can have at least one functional layer overlying a major surface. The polymer sheet has a thickness tPS. The polyurethane core has a thickness tPC. In embodiments tPC can be at least 0.3 tPS. The polyurethane core can have at least one of the following property: (i) a Scratch Resistance Rating, as further described herein, of not greater than about 10 wt %, (ii) an elongation at break of at least 200%, (iii) a tensile strength at break of at least 0.3 MPa, (iv) a loss of tensile strength of not greater than about 30% when exposed to UV light according to standard SAE J1960 (Rev. August 2003). The polymer sheet can be used for gaskets or bonding tapes.