CN114075342B - Preparation method of PET film and PET-based printing paper coating film - Google Patents

Preparation method of PET film and PET-based printing paper coating film Download PDF

Info

Publication number
CN114075342B
CN114075342B CN202010800501.3A CN202010800501A CN114075342B CN 114075342 B CN114075342 B CN 114075342B CN 202010800501 A CN202010800501 A CN 202010800501A CN 114075342 B CN114075342 B CN 114075342B
Authority
CN
China
Prior art keywords
pet
film
printing paper
pet film
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010800501.3A
Other languages
Chinese (zh)
Other versions
CN114075342A (en
Inventor
王玉合
戴钧明
李喜亮
王树霞
李红芳
司虎
黄洛玮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Sinopec Yizheng Chemical Fibre Co Ltd
Original Assignee
China Petroleum and Chemical Corp
Sinopec Yizheng Chemical Fibre Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp, Sinopec Yizheng Chemical Fibre Co Ltd filed Critical China Petroleum and Chemical Corp
Priority to CN202010800501.3A priority Critical patent/CN114075342B/en
Publication of CN114075342A publication Critical patent/CN114075342A/en
Application granted granted Critical
Publication of CN114075342B publication Critical patent/CN114075342B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/0027—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or layers by lamination or by fusion of the coatings or layers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/181—Acids containing aromatic rings
    • C08G63/183—Terephthalic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/752—Corrosion inhibitor
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

The invention discloses a preparation method of a PET film and a PET-based printing paper coating film, wherein the preparation method comprises the steps of mixing polybasic acid and polyhydric alcohol, carrying out esterification reaction under the catalysis of ethylene glycol antimony, adding hyperbranched polyester after esterification, carrying out polycondensation reaction to obtain PET copolyester, and then carrying out the procedures of melt extrusion, longitudinal stretching, transverse stretching, heat setting, slitting and winding to obtain the PET film; the printing paper coating is made of PET film through the coating procedure and thermal pressing to the surface of the printing paper. Under the condition of no adhesive, the peeling force of the PET paper coating film reaches 3.0-5.5N/25mm, the requirement of the paper coating film field on the film bonding fastness is met, the barrier property of the paper coating film is improved, the production cost is reduced, and the PET paper coating film is safe and environment-friendly.

Description

Preparation method of PET film and PET-based printing paper coating film
Technical Field
The invention relates to an environment-friendly printing paper coating and a preparation method thereof, in particular to a preparation method of a PET film and a PET-based printing paper coating.
Background
The paper printed matter film is one kind of paper-plastic product formed through printing paper and adhering plastic film with adhesive via rubber roller and electrothermal roller. After the paper printed matter is coated with a thin and transparent plastic film, the surface of the paper printed matter is smoother and brighter, the glossiness and the fastness of the paper printed matter are greatly improved, the service life of the paper printed matter is prolonged, and the paper printed matter has the protection effects of water resistance, pollution resistance, wear resistance, folding resistance, chemical corrosion resistance and the like.
The plastic film commonly used in the existing laminating process is basically a PP film, on one hand, the PP film has poor barrier property, and on the other hand, the PP film can be bonded on paper by means of an adhesive. PET materials have excellent barrier properties compared with PP materials, but pure PET films also require an adhesive to be attached to paper, so that PET copolyester films need to be modified for application to printing paper covers.
Disclosure of Invention
The invention aims to: the invention aims to provide a preparation method of a modified PET film with adhesiveness; the second object of the present invention is to provide a printing paper coating film prepared using the modified PET film.
The technical scheme is as follows: the preparation method of the PET film provided by the invention comprises the following steps:
(1) Preparation of PET copolyester: mixing polybasic acid with polyhydric alcohol, carrying out esterification reaction under the catalysis of ethylene glycol antimony, and adding hyperbranched polyester to carry out polycondensation reaction after esterification to obtain PET copolyester with specified viscosity;
(2) Preparation of PET film: and (3) carrying out the working procedures of melt extrusion, longitudinal stretching, transverse stretching, heat setting, slitting and rolling on the PET copolyester prepared in the step (1) to obtain the PET film.
The preferred hyperbranched polyester is HBPE-OH with hydroxyl end groups, the addition amount of the HBPE-OH is 0.001-0.002 mol, and the more preferred HBPE-OH has a structural general formula of CH 3 CH 2 C-(R 1 ) x -(CH 2 OH) y Or C [ CH ] 2 OCOC(CH 3 )-(R 2 ) m -(CH 2 OH) w ] 4 Wherein R is 1 is-CH 2 OCOPhCOOCH 2 C(CH 2 CH 3 ) -a repeating structural unit, R 2 is-CH 2 OCOC(CH 3 ) -repeating structural units, x represents the number of repeating units, x=3× (2 n -1), m represents the number of repeating units, m=n-1, y represents the number of end groups, y=3×2 n W represents the number of end groups, w=2 n N represents algebra and n=1 or 2 or 3; because the main raw materials of the paper are plant fibers, the main components of the paper are cellulose and hemicellulose, and a large amount of hydroxyl-OH groups are arranged on the structures of the cellulose and the hemicellulose, and the structures of the HBPE-OH groups are provided with a large amount of hydroxyl-OH groups, the binding force between the PET film and the paper can be increased through the hydrogen bond combination between a large amount of hydroxyl-OH groups.
Preferably, the polyacid is composed of terephthalic acid, isophthalic acid and adipic acid; wherein, the mole ratio of terephthalic acid, isophthalic acid and adipic acid is 1: 0.2-0.3: 0.05-0.15; preferred polyols consist of ethylene glycol and 1, 4-cyclohexanedimethanol; wherein, the mol ratio of the ethylene glycol to the 1, 4-cyclohexanedimethanol is 1.5:0.03 to 0.05.
The invention also protects a printing paper coating film, which is prepared by hot-pressing the PET film prepared by the method onto the surface of the printing paper through a coating film process; the pressure is 200 kg during hot pressing, the time is 2-3 seconds, and the temperature is 100-150 ℃.
The beneficial effects are that: compared with the prior art, the invention has the following remarkable advantages: according to the film prepared from the modified PET polyester, the PET film can be firmly adhered to the surface of printing paper only by means of hot rolling under the condition that an adhesive is not used, so that the barrier property of the paper-covered film is improved, a gluing process is omitted, the production cost is reduced, and the film is safe and environment-friendly.
Detailed Description
The invention is further illustrated below with reference to examples.
Example 1
(1) Preparation of PET copolyester: 1mol of terephthalic acid (PTA), 1.5mol of Ethylene Glycol (EG), 0.3mol of isophthalic acid (IPA), 0.15mol of Adipic Acid (AA) and 0.03mol of 1, 4-Cyclohexanedimethanol (CHDM) are put into a 150L batch polymerization reactor, 180ppm of ethylene glycol antimony (calculated by Sb atoms and relative to polyester PET) is added as a catalyst, the temperature is increased to carry out esterification reaction, the esterification temperature is 255 ℃, the pressure is 0.2MPa, and 0.002mol of hyperbranched polyester HBPE-OH with the structural formula of CH is added after the esterification is finished 3 CH 2 C-(CH 2 OCOPhCOOCH 2 C(CH 2 CH 3 )) 21 -(CH 2 OH) 24 And then continuously heating to perform polycondensation reaction, wherein the polycondensation temperature is 280 ℃, the pressure is less than or equal to 60Pa, discharging after a certain time is reached, granulating, and drying to obtain PET copolyester slices, wherein the intrinsic viscosity of the obtained PET copolyester is 0.65-0.70dL/g, and the melting range is 100-120 ℃.
(2) Preparation of PET film: and (3) drying the prepared PET copolyester, performing melt extrusion by a screw extruder to obtain a melt, cooling the melt by a quenching roller at the screw temperature of 230 ℃ and the temperature of 50 ℃ to obtain a cast sheet, wherein the obtained PET cast sheet has an ABC structure, a A, B layer adopts a conventional PET polyester sheet, a C layer adopts the prepared PET copolyester, and the C layer accounts for about 10-15%. The PET film for the printing paper is obtained after preheating, stretching, heat setting and rolling of a cast sheet, wherein the preheating process is as follows: the temperature is 80 ℃ and the time is 10s; the stretching process comprises the following steps: the temperature is 95 ℃, and the two-way gradual stretching is performed, namely, longitudinal stretching is performed firstly, then transverse stretching is performed, the stretching multiplying power is 3.5 times in the longitudinal direction, 3.5 times in the transverse direction, and the stretching rate is 100%; and (3) heat setting process: the temperature is 180 ℃ and the time is 2s; the thickness of the obtained PET film was 10. Mu.m.
(3) Printing paper laminating process: and placing the prepared PET film on printing paper, enabling the layer C to be in contact with the surface of the printing paper, and then placing the printing paper on a laminating machine for hot press, wherein the pressure is 200 kg, the temperature of a hot roller is 100 ℃, the time is 3s, and the stripping force between the PET film obtained after hot press and the surface of the printing paper is 5.5N/25mm.
Example 2
The preparation process of the PET copolyester, the preparation process of the PET film and the printing paper laminating process are the same as those of the first embodiment, except that: during the preparation of PET copolyester, 0.2mol of IPA,0.1mol of AA and 0.04mol of CHDM are added before esterification, and 0.001mol of hyperbranched polyester HBPE-OH with the structural formula of CH is added after esterification 3 CH 2 C-(CH 2 OCOPhCOOCH 2 C(CH 2 CH 3 )) 9 -(CH 2 OH) 12 The viscosity of the obtained PET copolyester is 0.60-0.65dL/g, and the melting range is 110-130 ℃; stretching temperature in the preparation process of the PET film is 100 ℃, and the thickness of the obtained PET film is 12 mu m; the temperature of a hot roller in the printing paper laminating process is 110 ℃, and the stripping force between the PET film obtained after hot pressing and the surface of the printing paper is 4.5N/25mm.
Example 3
The preparation process of the PET copolyester, the preparation process of the PET film and the printing paper laminating process are the same as those of the first embodiment, except that: during the preparation of PET copolyester, 0.3mol of IPA,0.05mol of AA and 0.05mol of CHDM are added before esterification, and 0.002mol of hyperbranched polyester HBPE-OH with the structural formula of CH is added after esterification 3 CH 2 C-(CH 2 OCOPhCOOCH 2 C(CH 2 CH 3 )) 3 -(CH 2 OH) 6 The viscosity of the obtained PET copolyester is 0.60-0.65dL/g, and the melting range is 120-150 ℃; the stretching temperature in the preparation process of the PET film for printing paper is 100 ℃, and the thickness of the obtained PET film is 15 mu m; the temperature of a hot roller in the printing paper laminating process is 115 ℃, and the stripping force between the PET film obtained after hot pressing and the surface of the printing paper is 4.0N/25mm.
Example 4
Preparation procedure of PET copolyester the preparation procedure of PET film and the laminating procedure of printing paper are identical to those of example, except that after esterification, 0.001mol of hyperbranched polyester HBPE-OH is added, and the structural formula of the hyperbranched polyester is C [ CH ] 2 OCOC(CH 3 )-(CH 2 OH) 2 ] 4 The viscosity of the obtained PET copolyester is 0.60-0.65dL/g, and the melting range is 130-160 ℃; temperature of hot roller in printing paper laminating processThe stripping force between the PET film and the surface of the printing paper obtained after hot pressing at 125 ℃ is 3.5N/25mm.
Example 5
The preparation process of PET copolyester, the preparation process of PET film and the laminating process of printing paper are identical to those of the example, except that 0.002mol of hyperbranched polyester HBPE-OH is added after esterification, and the structural formula of the hyperbranched polyester is C [ CH ] 2 OCOC(CH 3 )CH 2 OCOC(CH 3 )-(CH 2 OH) 4 ] 4 The peel force between the PET film obtained after the hot pressing and the surface of the printing paper is 4.0N/25mm.
Example 6
The preparation process of PET copolyester, the preparation process of PET film and the laminating process of printing paper are the same as those of the first embodiment, except that 0.001mol of hyperbranched polyester HBPE-OH is added after esterification, and the structural formula of the hyperbranched polyester is C [ CH ] 2 OCOC(CH 3 )(CH 2 OCOC(CH 3 )) 2 -(CH 2 OH) 8 ] 4 The peel force between the PET film obtained after the hot pressing and the surface of the printing paper is 3.0N/25mm.
Comparative example 1
The preparation process of PET copolyester, the preparation process of PET film and the laminating process of printing paper are the same as those of the first embodiment, except that hyperbranched polyester is not added after esterification, and the peeling force between the PET film and the surface of printing paper is 0.5N/25mm after thermal compression. Therefore, the PET film prepared from hyperbranched polyester can still keep higher bonding capability with paper under the condition of not using an adhesive, a gluing process is omitted, and meanwhile, the barrier property of the printing paper coating is improved.

Claims (4)

1. The preparation method of the PET film is characterized by comprising the following steps of:
(1) Preparation of PET copolyester: mixing polybasic acid with polyhydric alcohol, carrying out esterification reaction under the catalysis of ethylene glycol antimony, and adding hyperbranched polyester to carry out polycondensation reaction after esterification to obtain PET copolyester with specified viscosity;
(2) Preparation of PET film: the PET copolyester prepared in the step (1) is subjected to the procedures of melt extrusion, longitudinal stretching, transverse stretching, heat setting, slitting and rolling to prepare a PET film;
in the step (1), the polybasic acid consists of terephthalic acid, isophthalic acid and adipic acid; wherein, the mole ratio of terephthalic acid, isophthalic acid and adipic acid is 1: 0.2-0.3: 0.05-0.15; the polyalcohol consists of ethylene glycol and 1, 4-cyclohexanedimethanol; wherein, the mol ratio of the ethylene glycol to the 1, 4-cyclohexanedimethanol is 1.5:0.03 to 0.05; the hyperbranched polyester is HBPE-OH with hydroxyl as a terminal group; the addition amount of the HBPE-OH is 0.001-0.002mol;
the structural general formula of the HBPE-OH is CH 3 CH 2 C-(R 1 ) x -(CH 2 OH) y The method comprises the steps of carrying out a first treatment on the surface of the Wherein R is 1 is-CH 2 OCOPhCOOCH 2 C(CH 2 CH 3 ) -repeating structural units, x represents the number of repeating units, x=3× (2 n-1), y represents the number of end groups, y=3×2 n N represents algebra and n=1 or 2 or 3;
alternatively, the structural general formula of HBPE-OH is C [ CH ] 2 OCOC(CH 3 )-(R 2 ) m -(CH 2 OH) w ] 4 The method comprises the steps of carrying out a first treatment on the surface of the Wherein R is 2 is-CH 2 OCOC(CH 3 ) -repeating structural units, m representing the number of repeating units, m=n-1, w representing the number of end groups, w=2 n N represents algebra and n=1 or 2 or 3.
2. The method for producing a PET film according to claim 1, wherein: in the step (1), the intrinsic viscosity of the PET copolyester is 0.60-0.70 dL/g, and the melting range is 100-160 ℃.
3. An application of a PET film on a printing paper coating film is characterized in that: a PET film produced by the method of any one of claims 1 to 2 is thermally laminated to the surface of a printing paper by a laminating process.
4. A use according to claim 3, characterized in that: the pressure is 190-210 kg during hot pressing, the time is 2-3 s, and the temperature is 100-150 ℃.
CN202010800501.3A 2020-08-11 2020-08-11 Preparation method of PET film and PET-based printing paper coating film Active CN114075342B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010800501.3A CN114075342B (en) 2020-08-11 2020-08-11 Preparation method of PET film and PET-based printing paper coating film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010800501.3A CN114075342B (en) 2020-08-11 2020-08-11 Preparation method of PET film and PET-based printing paper coating film

Publications (2)

Publication Number Publication Date
CN114075342A CN114075342A (en) 2022-02-22
CN114075342B true CN114075342B (en) 2023-11-17

Family

ID=80279789

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010800501.3A Active CN114075342B (en) 2020-08-11 2020-08-11 Preparation method of PET film and PET-based printing paper coating film

Country Status (1)

Country Link
CN (1) CN114075342B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10136911A1 (en) * 2001-07-30 2003-02-20 Buehler Ag Process for preparation of a modified polyester of improved mechanical and rheological properties containing a hyperbranched polymer
CN103172990A (en) * 2013-03-26 2013-06-26 江苏双星彩塑新材料股份有限公司 Preparation method of heat shrinkable polyester film
CN105331078A (en) * 2015-12-02 2016-02-17 威海晨源分子新材料有限公司 Application of hyperbranched polyester to plastic processing
CN111057264A (en) * 2019-11-29 2020-04-24 杜康伟 High-transmittance intelligent liquid crystal dimming film and preparation method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002221784A1 (en) * 2000-10-31 2002-05-15 Basf Drucksysteme Gmbh Liquid printing inks for flexographic and/or intaglio printing comprising hyperbranched polymers as the vehicle
MY139705A (en) * 2004-07-19 2009-10-30 Basf Ag Mixtures of hyperbranched polyesters with polycarbonates as additive for polyester molding compositions
JP2018517029A (en) * 2015-05-21 2018-06-28 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ Preparation of hyperbranched polycarbonate polyols and their use

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10136911A1 (en) * 2001-07-30 2003-02-20 Buehler Ag Process for preparation of a modified polyester of improved mechanical and rheological properties containing a hyperbranched polymer
CN103172990A (en) * 2013-03-26 2013-06-26 江苏双星彩塑新材料股份有限公司 Preparation method of heat shrinkable polyester film
CN105331078A (en) * 2015-12-02 2016-02-17 威海晨源分子新材料有限公司 Application of hyperbranched polyester to plastic processing
CN111057264A (en) * 2019-11-29 2020-04-24 杜康伟 High-transmittance intelligent liquid crystal dimming film and preparation method thereof

Also Published As

Publication number Publication date
CN114075342A (en) 2022-02-22

Similar Documents

Publication Publication Date Title
KR102263118B1 (en) Polyester film, preparation method thereof and method for reproducing polyrthyleneterephthalate container using same
CN101735437B (en) Copolyester with low melting point and synthesis method thereof
CN111875785B (en) Polyether ester multi-block copolymerized dihydric alcohol, synthesis method and application of reactive hot melt adhesive
KR20140007379A (en) Biaxial oriented polyester film, method for producing same, solar cell back sheet, and solar cell module
CN110157370B (en) Reaction type polyurethane hot melt adhesive for edge sealing
CN1276009C (en) Heat-shrinkable polyester film
JPH082950B2 (en) Copolyester film
CN112646529A (en) High-temperature-resistant single-component solvent-free polyurethane adhesive and preparation method and application thereof
KR100745093B1 (en) Polyester resin and polyester resin laminate container
CN112143437A (en) Lithium battery aluminum plastic film outer layer adhesive resin and preparation and application thereof
CN114075342B (en) Preparation method of PET film and PET-based printing paper coating film
KR20140060531A (en) Solar cell backsheet and solar cell module
KR20230088438A (en) cross-linked polyester resin
CN105073386A (en) Polyester film and method for producing same
JP2009051965A (en) Water-based adhesive for metal sheet laminate and polyester film for metal sheet laminate, obtained by laminating the adhesive
CN110791247A (en) Solar cell backboard adhesive resin and preparation method thereof
KR102281770B1 (en) Polyester film and method for reproducing polyester container using same
JP4993974B2 (en) Aqueous adhesive for metal plate lamination, and polyester film for metal plate lamination formed by laminating the same
TW201117951A (en) PET reinforced composite, manufacturing method thereof and application thereof
CN115260969B (en) Hot-melt composite adhesive for aluminum plastic film, and preparation method and application thereof
KR102349923B1 (en) Polyester film, preparation method thereof and method for reproducing polyethyleneterephthalate container using same
KR102349917B1 (en) Polyester film, preparation method thereof and method for reproducing polyethyleneterephthalate container using same
KR101052123B1 (en) Hot Melt Adhesive Composition and Laminates Using the Adhesive Layer
CN117701218A (en) Polyurethane hot melt adhesive and preparation method and application thereof
CN117777929A (en) High-solid-content heat-resistant polyurethane adhesive and application thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant