CN109594420A - A kind of release paper and preparation method thereof for flooring laminate production - Google Patents
A kind of release paper and preparation method thereof for flooring laminate production Download PDFInfo
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- CN109594420A CN109594420A CN201811611561.XA CN201811611561A CN109594420A CN 109594420 A CN109594420 A CN 109594420A CN 201811611561 A CN201811611561 A CN 201811611561A CN 109594420 A CN109594420 A CN 109594420A
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- parts
- trimethyl silane
- paper
- release
- body paper
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/001—Release paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/28—Polyesters
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Laminated Bodies (AREA)
- Floor Finish (AREA)
Abstract
The invention discloses a kind of release papers for flooring laminate production, including body paper, the body paper is equipped with release layer, the release layer is by including that the raw material of following parts by weight is made: 30~40 parts of polyether acrylate, 35~48 parts of epoxy acrylate, 20~30 parts of polyester triacrylate, trimerization (1,3-propanediol) 12~18 parts of double methacrylate, acryloyloxymethyl trimethyl silane and 5.5~8 parts of trimethyl silane mixture of (2,4- difluorophenyl).Release paper structure for flooring laminate production of the invention is simple, it is easily processed into type, the paper membrane bond strength, peel strength, the high temperature resistance that are used for the release paper of flooring laminate production are excellent, it can be used for the production of flooring laminate, the bond strength of release layer and body paper is high, and high temperature resistance is good, so that release paper of the invention has the characteristics that long service life, it repeated multiple times can use, improve the utilization rate of release paper.
Description
Technical field
The present invention relates to release paper fields, and in particular to a kind of release paper and preparation method thereof for flooring laminate production.
Background technique
Release paper needs to be widely used in industrial processes, is the transfer coated indispensable carrier of processing, from
Type paper surface needs high temperature resistant, is unlikely to deform；Use the mixing material of one layer of PE and PP as the coating of release paper at present, it is release
The former base stock of paper and release paper surface are easily-deformable, removing, crimp, and service life is shorter, and the utilization rate of release paper is low, and surface does not have
There are preferable high temperature resistant, on-deformable characteristic, peeling effect is also bad, and especially high temperature resistance and intensity is poor, cannot
Meet the requirement of flooring laminate production.
Based on the above situation, the invention proposes a kind of release paper and preparation method thereof for flooring laminate production, can have
Effect solves problem above.
Summary of the invention
The purpose of the present invention is to provide a kind of release papers and preparation method thereof for flooring laminate production.Use of the invention
It is excellent in paper membrane bond strength, peel strength, the high temperature resistance of the release paper of flooring laminate production, it can be used for the life of flooring laminate
It produces, the bond strength of release layer and body paper is high, and high temperature resistance is good, so that release paper of the invention has spy with long service life
Point repeated multiple times can use, improve the utilization rate of release paper.The present invention is achieved through the following technical solutions:
A kind of release paper for flooring laminate production, including body paper, the body paper are equipped with release layer, the release layer by
Raw material including following parts by weight is made:
30~40 parts of polyether acrylate,
35~48 parts of epoxy acrylate,
20~30 parts of polyester triacrylate,
12~18 parts of trimerization (1,3- propylene glycol) double methacrylate,
Acryloyloxymethyl trimethyl silane and 5.5~8 parts of trimethyl silane mixture of (2,4 difluorobenzene base)；
Wherein, the acryloyloxymethyl trimethyl silane and propylene in (2,4- difluorophenyl) trimethyl silane mixture
The mass ratio of acyloxymethyl trimethyl silane and (2,4 difluorobenzene base) trimethyl silane is 1:1.12~1.35.
Release paper structure for flooring laminate production of the invention is simple, easily processed into type, this is used for flooring laminate production
Release paper paper membrane bond strength, peel strength, high temperature resistance it is excellent, can be used for the production of flooring laminate, release layer and original
The bond strength of paper is high, and high temperature resistance is good, so that release paper of the invention has the characteristics that long service life, it can be repeated multiple times
It uses, improves the utilization rate of release paper.
Preferably, the release layer is by including that the raw material of following parts by weight is made:
36.5 parts of polyether acrylate,
41 parts of epoxy acrylate,
27 parts of polyester triacrylate,
15 parts of trimerization (1,3- propylene glycol) double methacrylate,
Acryloyloxymethyl trimethyl silane and 6.9 parts of trimethyl silane mixture of (2,4 difluorobenzene base)；
Wherein, the acryloyloxymethyl trimethyl silane and propylene in (2,4- difluorophenyl) trimethyl silane mixture
The mass ratio of acyloxymethyl trimethyl silane and (2,4 difluorobenzene base) trimethyl silane is 1:1.25.
Preferably, the acid value of the polyester triacrylate is 5~8mgkOH/g；Viscosity is 25 DEG C of 800~1700cps@.
Preferably, the acryloyloxymethyl trimethyl silane and in (2,4- difluorophenyl) trimethyl silane mixture third
The mass ratio of alkene acyloxymethyl trimethyl silane and (2,4 difluorobenzene base) trimethyl silane is 1:1.25.
The present invention also provides a kind of preparation methods of release paper for flooring laminate production, including the following steps:
A, dry body paper preparation: body paper is dried in vacuo, dry body paper is obtained；
B, dry body paper surface frosted: dry body paper is subjected to surface frosted processing with grinding machine, obtains pretreatment body paper；
C, by polyether acrylate, epoxy acrylate, polyester triacrylate, trimerization (1,3- propylene glycol) double acrylic acid
Ester, acryloyloxymethyl trimethyl silane and (2,4- difluorophenyl) trimethyl silane mixture are uniformly mixed, and are sent into coating machine
Hopper in, by coating machine by mixture be coated to pretreatment body paper on, obtain coated paper；
D, coated paper is subjected to embossed surface to mixture coating by knurling rolls, is then fed into solidification equipment, carries out
Beam energy solidification, obtains the release paper produced for flooring laminate.
Preferably, in step C, the coating weight of the mixture is 45~90g/m2.
Preferably, in step D, the progress cured condition of beam energy is 280kev high pressure, 60KGY~70KGY dosage
Low-energy electron beam carry out penetrating solidification.
Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that
Release paper structure for flooring laminate production of the invention is simple, easily processed into type, this is used for flooring laminate production
Release paper paper membrane bond strength, peel strength, high temperature resistance it is excellent, can be used for the production of flooring laminate, release layer and original
The bond strength of paper is high, and high temperature resistance is good, so that release paper of the invention has the characteristics that long service life, it can be repeated multiple times
It uses, improves the utilization rate of release paper.
Release paper of the invention is relative to common release paper, by optimization formula and rational proportion, and uses electron beam
Carry out beam energy solidification, the release layer good integrity of the release paper made, with the paper membrane bond strength with body paper, removing
Intensity, high temperature resistance are excellent, can be used for the production of flooring laminate, and mention the reuse number of release paper of the invention substantially
It is high.
Preparation method simple process of the invention, it is easy to operate, effectively save human cost.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto.
Test method described in following embodiments or test method are unless otherwise specified conventional method；The reagent
And material is obtained from routine business approach, or prepare in conventional manner unless otherwise specified.
Embodiment 1:
A kind of release paper for flooring laminate production, including body paper, the body paper are equipped with release layer, the release layer by
Raw material including following parts by weight is made:
30~40 parts of polyether acrylate,
35~48 parts of epoxy acrylate,
20~30 parts of polyester triacrylate,
12~18 parts of trimerization (1,3- propylene glycol) double methacrylate,
Acryloyloxymethyl trimethyl silane and 5.5~8 parts of trimethyl silane mixture of (2,4 difluorobenzene base)；
Wherein, the acryloyloxymethyl trimethyl silane and propylene in (2,4- difluorophenyl) trimethyl silane mixture
The mass ratio of acyloxymethyl trimethyl silane and (2,4 difluorobenzene base) trimethyl silane is 1:1.12~1.35.
Embodiment 2:
A kind of release paper for flooring laminate production, including body paper, the body paper are equipped with release layer, the release layer by
Raw material including following parts by weight is made:
30 parts of polyether acrylate,
35 parts of epoxy acrylate,
20 parts of polyester triacrylate,
12 parts of trimerization (1,3- propylene glycol) double methacrylate,
Acryloyloxymethyl trimethyl silane and 5.5 parts of trimethyl silane mixture of (2,4 difluorobenzene base)；
Wherein, the acryloyloxymethyl trimethyl silane and propylene in (2,4- difluorophenyl) trimethyl silane mixture
The mass ratio of acyloxymethyl trimethyl silane and (2,4 difluorobenzene base) trimethyl silane is 1:1.12.
In the present embodiment, the acid value of the polyester triacrylate is 5mgkOH/g；Viscosity is 25 DEG C of 800cps@.
In the present embodiment, the preparation method of the release paper for flooring laminate production, including the following steps:
A, dry body paper preparation: body paper is dried in vacuo, dry body paper is obtained；
B, dry body paper surface frosted: dry body paper is subjected to surface frosted processing with grinding machine, obtains pretreatment body paper；
C, by polyether acrylate, epoxy acrylate, polyester triacrylate, trimerization (1,3- propylene glycol) double acrylic acid
Ester, acryloyloxymethyl trimethyl silane and (2,4- difluorophenyl) trimethyl silane mixture are uniformly mixed, and are sent into coating machine
Hopper in, by coating machine by mixture be coated to pretreatment body paper on, obtain coated paper；
D, coated paper is subjected to embossed surface to mixture coating by knurling rolls, is then fed into solidification equipment, carries out
Beam energy solidification, obtains the release paper produced for flooring laminate.
In the present embodiment, in step C, the coating weight of the mixture is 45g/m2.
In the present embodiment, in step D, the progress cured condition of beam energy is 280kev high pressure, 60KGY dosage
Low-energy electron beam carries out penetrating solidification.
Embodiment 3:
A kind of release paper for flooring laminate production, including body paper, the body paper are equipped with release layer, the release layer by
Raw material including following parts by weight is made:
40 parts of polyether acrylate,
48 parts of epoxy acrylate,
30 parts of polyester triacrylate,
18 parts of trimerization (1,3- propylene glycol) double methacrylate,
Acryloyloxymethyl trimethyl silane and 8 parts of trimethyl silane mixture of (2,4 difluorobenzene base)；
Wherein, the acryloyloxymethyl trimethyl silane and propylene in (2,4- difluorophenyl) trimethyl silane mixture
The mass ratio of acyloxymethyl trimethyl silane and (2,4 difluorobenzene base) trimethyl silane is 1:1.35.
In the present embodiment, the acid value of the polyester triacrylate is 8mgkOH/g；Viscosity is 25 DEG C of 1700cps@.
In the present embodiment, the preparation method of the release paper for flooring laminate production, including the following steps:
A, dry body paper preparation: body paper is dried in vacuo, dry body paper is obtained；
B, dry body paper surface frosted: dry body paper is subjected to surface frosted processing with grinding machine, obtains pretreatment body paper；
C, by polyether acrylate, epoxy acrylate, polyester triacrylate, trimerization (1,3- propylene glycol) double acrylic acid
Ester, acryloyloxymethyl trimethyl silane and (2,4- difluorophenyl) trimethyl silane mixture are uniformly mixed, and are sent into coating machine
Hopper in, by coating machine by mixture be coated to pretreatment body paper on, obtain coated paper；
D, coated paper is subjected to embossed surface to mixture coating by knurling rolls, is then fed into solidification equipment, carries out
Beam energy solidification, obtains the release paper produced for flooring laminate.
In the present embodiment, in step C, the coating weight of the mixture is 90g/m2.
In the present embodiment, in step D, the progress cured condition of beam energy is 280kev high pressure, 70KGY dosage
Low-energy electron beam carries out penetrating solidification.
Embodiment 4:
A kind of release paper for flooring laminate production, including body paper, the body paper are equipped with release layer, the release layer by
Raw material including following parts by weight is made:
36.5 parts of polyether acrylate,
41 parts of epoxy acrylate,
27 parts of polyester triacrylate,
15 parts of trimerization (1,3- propylene glycol) double methacrylate,
Acryloyloxymethyl trimethyl silane and 6.9 parts of trimethyl silane mixture of (2,4 difluorobenzene base)；
Wherein, the acryloyloxymethyl trimethyl silane and propylene in (2,4- difluorophenyl) trimethyl silane mixture
The mass ratio of acyloxymethyl trimethyl silane and (2,4 difluorobenzene base) trimethyl silane is 1:1.25.
In the present embodiment, the acid value of the polyester triacrylate is 7mgkOH/g；Viscosity is 25 DEG C of 1200cps@.
In the present embodiment, the preparation method of the release paper for flooring laminate production, including the following steps:
A, dry body paper preparation: body paper is dried in vacuo, dry body paper is obtained；
B, dry body paper surface frosted: dry body paper is subjected to surface frosted processing with grinding machine, obtains pretreatment body paper；
C, by polyether acrylate, epoxy acrylate, polyester triacrylate, trimerization (1,3- propylene glycol) double acrylic acid
Ester, acryloyloxymethyl trimethyl silane and (2,4- difluorophenyl) trimethyl silane mixture are uniformly mixed, and are sent into coating machine
Hopper in, by coating machine by mixture be coated to pretreatment body paper on, obtain coated paper；
D, coated paper is subjected to embossed surface to mixture coating by knurling rolls, is then fed into solidification equipment, carries out
Beam energy solidification, obtains the release paper produced for flooring laminate.
In the present embodiment, in step C, the coating weight of the mixture is 60g/m2.
In the present embodiment, in step D, the progress cured condition of beam energy is 280kev high pressure, 65KGY dosage
Low-energy electron beam carries out penetrating solidification.
The embodiment of the present invention 2 to embodiment 4 and common release paper are tested for the property below, test result such as table 1
It is shown:
Table 1
As can be seen from the above table, the release paper for flooring laminate production of the embodiment of the present invention 2, embodiment 3 and embodiment 4
Paper membrane bond strength, peel strength, high temperature resistance it is excellent, can be used for the production of flooring laminate, the combination of release layer and body paper
Intensity is high, and high temperature resistance is good, so that release paper of the invention has the characteristics that long service life, repeated multiple times can use, mention
The high utilization rate of release paper.
In addition, the shrinking percentage of release paper of the invention is up to 1.4% after tested；Number is reused up to 50 times；Anti-tensile
Intensity (vertical) is up to 14.45kN/m；Tensile strength (cross) is up to 2135mN；Solvent resistance is good.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is all according to
According to technical spirit any simple modification to the above embodiments of the invention, equivalent variations, protection of the invention is each fallen within
Within the scope of.
Claims (7)
1. a kind of release paper for flooring laminate production, including body paper, it is characterised in that: the body paper is equipped with release layer, institute
Release layer is stated by including that the raw material of following parts by weight is made:
30~40 parts of polyether acrylate,
35~48 parts of epoxy acrylate,
20~30 parts of polyester triacrylate,
12~18 parts of trimerization (1,3- propylene glycol) double methacrylate,
Acryloyloxymethyl trimethyl silane and 5.5~8 parts of trimethyl silane mixture of (2,4 difluorobenzene base)；
Wherein, the acryloyloxymethyl trimethyl silane and acryloyl-oxy in (2,4- difluorophenyl) trimethyl silane mixture
The mass ratio of methyltrimethylsilane and (2,4 difluorobenzene base) trimethyl silane is 1:1.12~1.35.
2. it is according to claim 1 for flooring laminate production release paper, it is characterised in that: the release layer by include with
The raw material of lower parts by weight is made:
36.5 parts of polyether acrylate,
41 parts of epoxy acrylate,
27 parts of polyester triacrylate,
15 parts of trimerization (1,3- propylene glycol) double methacrylate,
Acryloyloxymethyl trimethyl silane and 6.9 parts of trimethyl silane mixture of (2,4 difluorobenzene base)；
Wherein, the acryloyloxymethyl trimethyl silane and acryloyl-oxy in (2,4- difluorophenyl) trimethyl silane mixture
The mass ratio of methyltrimethylsilane and (2,4 difluorobenzene base) trimethyl silane is 1:1.25.
3. the release paper according to claim 1 for flooring laminate production, it is characterised in that: the polyester triacrylate
Acid value be 5~8mgkOH/g；Viscosity is 25 DEG C of 800~1700cps@.
4. the release paper according to claim 1 for flooring laminate production, it is characterised in that: the acryloyloxymethyl three
Acryloyloxymethyl trimethyl silane and (2,4 difluorobenzene in methyl-monosilane and (2,4 difluorobenzene base) trimethyl silane mixture
Base) trimethyl silane mass ratio be 1:1.25.
5. a kind of such as a kind of described in any item preparation methods of the release paper for flooring laminate production of Claims 1-4, spy
Sign is: including the following steps:
A, dry body paper preparation: body paper is dried in vacuo, dry body paper is obtained；
B, dry body paper surface frosted: dry body paper is subjected to surface frosted processing with grinding machine, obtains pretreatment body paper；
C, by polyether acrylate, epoxy acrylate, polyester triacrylate, trimerization (1,3- propylene glycol) double methacrylate,
Acryloyloxymethyl trimethyl silane and (2,4- difluorophenyl) trimethyl silane mixture are uniformly mixed, and are sent into the material of coating machine
In slot, mixture is coated on pretreatment body paper by coating machine, obtains coated paper；
D, coated paper is subjected to embossed surface to mixture coating by knurling rolls, is then fed into solidification equipment, carries out electronics
Beam energy solidification, obtains the release paper produced for flooring laminate.
6. the production method of the comfortable school uniform of pro-skin according to claim 5, it is characterised in that: in step C, the mixing
The coating weight of material is 45~90g/m2.
7. the production method of the comfortable school uniform of pro-skin according to claim 5, it is characterised in that: in step D, carry out electronics
The cured condition of beam energy is 280kev high pressure, and the low-energy electron beam of 60KGY~70KGY dosage carries out penetrating solidification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811611561.XA CN109594420B (en) | 2018-12-27 | 2018-12-27 | Release paper for floor leather production and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811611561.XA CN109594420B (en) | 2018-12-27 | 2018-12-27 | Release paper for floor leather production and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109594420A true CN109594420A (en) | 2019-04-09 |
| CN109594420B CN109594420B (en) | 2021-04-23 |
Family
ID=65962772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811611561.XA Active CN109594420B (en) | 2018-12-27 | 2018-12-27 | Release paper for floor leather production and preparation method thereof |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497730A (en) * | 2009-03-05 | 2009-08-05 | 浙江池禾化工有限公司 | Fluoride bearing release agent and release paper with release coating formed thereby |
| CN103740262A (en) * | 2014-01-16 | 2014-04-23 | 叶慧仁 | High temperature resistant release coating material for artificial synthetic leather release paper, and preparation method and application thereof |
| CN104594117A (en) * | 2015-01-13 | 2015-05-06 | 浙江遂昌池河控股有限公司 | Method for making artificial leather release paper in radiation curing manner |
| CN107556938A (en) * | 2017-09-20 | 2018-01-09 | 深圳市宝力新材料有限公司 | A kind of optical clear glued membrane and its manufacture method |
| KR101924447B1 (en) * | 2018-04-29 | 2018-12-03 | 박현민 | Release film and manufacturing mathod of the same |
-
2018
- 2018-12-27 CN CN201811611561.XA patent/CN109594420B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497730A (en) * | 2009-03-05 | 2009-08-05 | 浙江池禾化工有限公司 | Fluoride bearing release agent and release paper with release coating formed thereby |
| CN103740262A (en) * | 2014-01-16 | 2014-04-23 | 叶慧仁 | High temperature resistant release coating material for artificial synthetic leather release paper, and preparation method and application thereof |
| CN104594117A (en) * | 2015-01-13 | 2015-05-06 | 浙江遂昌池河控股有限公司 | Method for making artificial leather release paper in radiation curing manner |
| CN107556938A (en) * | 2017-09-20 | 2018-01-09 | 深圳市宝力新材料有限公司 | A kind of optical clear glued membrane and its manufacture method |
| KR101924447B1 (en) * | 2018-04-29 | 2018-12-03 | 박현민 | Release film and manufacturing mathod of the same |
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| Publication number | Publication date |
|---|---|
| CN109594420B (en) | 2021-04-23 |
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