Black or gray biaxially oriented polyester film with a high portion of cyclohexanedimethanol and a primary and secondary dicarboxylic acid portion and a method for its production and its use
A technology of cyclohexanedimethanol and biaxial orientation, which is applied in the field of producing the film, can solve the problems that fluoropolymers are expensive and cannot be processed
Inactive Publication Date: 2012-08-01
MITSUBISHI POLYESTER FILM
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, Tedlar and other fluoropolymers are expensive and will also present a major recycling problem in the future when the number of solar modules reaching the end of their life will skyrocket, as they can neither be easily recycled nor be environmentally friendly. Requirements for processing (e.g. burning)
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0100] Method: Raw materials R1 and R2 were mixed in the ratios given in the table below and extruded in a Japan Steel Works twin-screw extruder with degassing function. The temperature was a maximum of 275°C in the extruder region and in the melt line. The material throughput is 2000kg / hour. The melt was extruded through a flat die (at a temperature of 275°C) onto a cooling roll (30°C), followed by longitudinal stretching at 105°C by 3.2 times, and then at 110°C by 3.2 times in the transverse direction.
[0101] The film was then heat-set at 222° C. with an adjustment of 2% relaxation in the transverse direction in the final zone. In the two subsequent setting zones, 190° C. and 150° C. are adjusted and a further 3% relaxation is performed at this time. The total dwell time in heat setting was 15 seconds.
[0102] Raw materials used:
[0103] R1=polyethylene terephthalate / cyclohexanedimethanol isophthalate, model: Durastar DS2000 (manufacturer Eastman, USA), SV=980, IPA c...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a biaxially oriented film containing at least one black pigment. The film is predominantly formed from a polyester whose diol component includes at least 80 mol-% of 1,4-cyclohexanedimethanol (CHDM), and whose the dicarboxylic acid component includes at least 80 mol-% of one or more benzenedicarboxylic acid(s) and / or one or more naphthalene dicarboxylic acid(s). The dicarboxylic acid component includes a main dicarboxylic acid component forming an at least 55 mol-% portion, chosen from either 2,6-naphthalene dicarboxylic acid or terephthalic acid. The dicarboxylic acid component further includes a secondary dicarboxylic acid component, present in an amount of at least 18 mol-%, with the secondary dicarboxylic acid component differing from the main dicarboxylic acid component. The invention further relates to a method for producing the film and its use.
Description
technical field [0001] The present invention relates to a black biaxially oriented film made of polyester, the thickness of which preferably lies in the range of 12 to 600 μm. The film consists essentially of polyester whose diol component essentially consists of cyclohexanedimethanol. A significant (major) proportion of the dicarboxylic acid component consists of phthalic or naphthalene dicarboxylic acids, but at least 18 mol % of the dicarboxylic acid component consists of dicarboxylic acids other than the predominantly used phthalic or naphthalene dicarboxylic acids constitute. The film further contains at least one black pigment. These films are characterized by their good manufacturability, very good hydrolysis capacity and good electrical insulating properties. The invention further relates to a method for producing said film and its use. Background technique [0002] Biaxially oriented films made of polyester having a thickness in the stated range are well known. ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K3/22C08K3/04C08K9/10B29C47/00B29C55/12H01B3/42H01L31/048B29C48/08B29C48/92
CPCC08K3/04H01L31/0487B29K2105/0005B29L2007/008B29C47/0004C08G63/181C08J2367/02B29C47/92H01B3/421C08K3/0033B29C47/1063H01L31/048B29C2947/92704B29C47/0021B29K2995/0053C08J5/18B29C2947/92923Y02E10/50B29C47/14H01L31/049C08K3/013B29C48/92B29C2948/92704B29C48/29B29C48/022B29C48/08B29C48/305B29C48/91B29C48/914B29C2948/92923C02F1/74B01F23/231B01F25/21B01F2101/305
Inventor H·克利施O·克莱恩G·希尔克特R·库尔茨
Owner MITSUBISHI POLYESTER FILM