CN117015583A - Film and adhesive tape - Google Patents
Film and adhesive tape Download PDFInfo
- Publication number
- CN117015583A CN117015583A CN202280018445.5A CN202280018445A CN117015583A CN 117015583 A CN117015583 A CN 117015583A CN 202280018445 A CN202280018445 A CN 202280018445A CN 117015583 A CN117015583 A CN 117015583A
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- CN
- China
- Prior art keywords
- film
- resin
- glucan
- beta
- rosin
- 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.)
- Pending
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- 239000002390 adhesive tape Substances 0.000 title claims description 15
- 239000011347 resin Substances 0.000 claims abstract description 110
- 229920005989 resin Polymers 0.000 claims abstract description 110
- 229920002498 Beta-glucan Polymers 0.000 claims abstract description 56
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 44
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 44
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 44
- 150000003505 terpenes Chemical class 0.000 claims abstract description 31
- 235000007586 terpenes Nutrition 0.000 claims abstract description 31
- 125000002252 acyl group Chemical group 0.000 claims abstract description 25
- 239000003208 petroleum Substances 0.000 claims abstract description 17
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 10
- 125000001183 hydrocarbyl group Chemical group 0.000 claims abstract 2
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 239000004820 Pressure-sensitive adhesive Substances 0.000 abstract description 14
- 239000010410 layer Substances 0.000 abstract description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 24
- 238000000034 method Methods 0.000 description 20
- 230000015572 biosynthetic process Effects 0.000 description 17
- 238000003786 synthesis reaction Methods 0.000 description 17
- 238000006467 substitution reaction Methods 0.000 description 14
- 239000000203 mixture Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 12
- 125000001931 aliphatic group Chemical group 0.000 description 11
- 239000007787 solid Substances 0.000 description 11
- 125000000217 alkyl group Chemical group 0.000 description 10
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 125000004063 butyryl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 8
- 150000002148 esters Chemical class 0.000 description 8
- 150000002430 hydrocarbons Chemical group 0.000 description 8
- 235000010724 Wisteria floribunda Nutrition 0.000 description 6
- 150000004678 hydrides Chemical class 0.000 description 6
- 238000005160 1H NMR spectroscopy Methods 0.000 description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- 125000003118 aryl group Chemical group 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 3
- DVECBJCOGJRVPX-UHFFFAOYSA-N butyryl chloride Chemical compound CCCC(Cl)=O DVECBJCOGJRVPX-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005984 hydrogenation reaction Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 150000003855 acyl compounds Chemical class 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 125000003342 alkenyl group Chemical group 0.000 description 2
- 229920005601 base polymer Polymers 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- -1 pentaerythritol ester Chemical class 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 238000001226 reprecipitation Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- KPAPHODVWOVUJL-UHFFFAOYSA-N 1-benzofuran;1h-indene Chemical compound C1=CC=C2CC=CC2=C1.C1=CC=C2OC=CC2=C1 KPAPHODVWOVUJL-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 241000195620 Euglena Species 0.000 description 1
- 238000001157 Fourier transform infrared spectrum Methods 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 description 1
- 125000003104 hexanoyl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000001819 mass spectrum Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 125000002801 octanoyl group Chemical group C(CCCCCCC)(=O)* 0.000 description 1
- 125000003538 pentan-3-yl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- RZWZRACFZGVKFM-UHFFFAOYSA-N propanoyl chloride Chemical compound CCC(Cl)=O RZWZRACFZGVKFM-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 150000003222 pyridines Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000003774 valeryl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The film (1) comprises a beta-1, 3-glucan derivative having an acyl group introduced into beta-1, 3-glucan, and at least 1 resin selected from the group consisting of rosin-based resins, terpene-based resins, and petroleum-based resins. Acyl is represented by RCO-, R is a hydrocarbon group having 1 to 5 carbon atoms. The resin is 90 parts by weight or less per 100 parts by weight of the beta-1, 3-glucan derivative. The pressure-sensitive adhesive tape (3) is provided with a film (1) and a pressure-sensitive adhesive layer (4).
Description
Technical Field
The present invention relates to films and adhesive tapes.
Background
Films containing β -1, 3-glucan are known (for example, see patent document 1 below).
Prior art literature
Patent literature
Patent document 1: japanese patent laid-open No. 2004-331837
Disclosure of Invention
Problems to be solved by the invention
The film as described above is required to have excellent mechanical strength depending on the application and purpose. However, the film described in patent document 1 has a drawback that the above-described requirements cannot be satisfied.
The invention provides a film and an adhesive tape with excellent mechanical strength.
Solution for solving the problem
The present invention (1) comprises a film comprising a beta-1, 3-glucan derivative having an acyl group, represented by RCO-, wherein R is a hydrocarbon group having 1 to 5 carbon atoms, and at least 1 resin selected from the group consisting of rosin-based resins, terpene-based resins and petroleum-based resins, wherein the resin is 90 parts by weight or less based on 100 parts by weight of the beta-1, 3-glucan derivative.
The present invention (2) includes an adhesive tape comprising the film of (1) and an adhesive layer disposed on one surface of the film in the thickness direction.
ADVANTAGEOUS EFFECTS OF INVENTION
The film and the adhesive tape of the present invention are excellent in mechanical strength.
Drawings
FIG. 1 is a cross-sectional view of one embodiment of a film of the present invention.
Fig. 2 is a cross-sectional view of an adhesive tape provided with the film shown in fig. 1.
Fig. 3 is a modified example of the adhesive tape.
Detailed Description
< film >
The film of the present invention comprises a beta-1, 3-glucan derivative and a resin.
Beta-1, 3-glucan derivative
The beta-1, 3-glucan derivative is the base polymer (or the main polymer) in the film. The beta-1, 3-glucan derivative is a partial acyl compound in which a part of the hydroxyl groups in glucose contained in beta-1, 3-glucan is acylated with an acyl group. Namely, the β -1, 3-glucan derivative is an acyl compound having an acyl group introduced into β -1, 3-glucan.
Acyl is represented by RCO-. Examples of R include hydrocarbon groups. Examples of the hydrocarbon group include an aliphatic hydrocarbon group and a alicyclic hydrocarbon group, and from the viewpoint of improving mechanical strength, an aliphatic hydrocarbon group is preferable.
Examples of the aliphatic hydrocarbon group include a saturated aliphatic hydrocarbon group and an unsaturated aliphatic hydrocarbon group. The aliphatic hydrocarbon group is preferably a saturated aliphatic hydrocarbon group from the viewpoint of improving mechanical strength.
Examples of the saturated aliphatic hydrocarbon group include an alkyl group. Examples of the alkyl group include a linear alkyl group and a branched alkyl group. Examples of the linear alkyl group include methyl, ethyl, propyl, butyl, sec-butyl, pentyl and 3-pentyl. Examples of the branched alkyl group include isopropyl, isobutyl, tert-butyl, isopentyl and neopentyl.
The alkyl group is preferably a linear alkyl group.
The number of carbon atoms of the hydrocarbon group (preferably alkyl group) is 1 or more, preferably 2 or more, more preferably 3 or more. If the lower limit of the hydrocarbon group is not less than the above lower limit, the tensile elastic modulus of the film can be improved.
The number of carbon atoms of the hydrocarbon group (preferably alkyl group) is 5 or less, preferably 4 or less, more preferably 3 or less. If the number of carbon atoms of the hydrocarbon group exceeds 5, the tensile elastic modulus and the tensile maximum stress decrease. In particular, if the number of carbon atoms of the hydrocarbon group is not more than the upper limit (preferably 3), the tensile maximum stress can be increased.
Examples of the unsaturated aliphatic hydrocarbon group include alkenyl groups. Examples of the alkenyl group include vinyl group and 2-propenyl group.
Specific examples of the acyl group include acetyl (R in RCO is CH) 3 Examples of (2) propionyl (R in RCO is C) 2 H 5 Examples of (2) are) butyryl (R in RCO is C 3 H 7 Examples of (2) pentanoyl (R in RCO is C) 4 H 9 Examples of (2) hexanoyl (R in RCO is C) 5 H 11 Examples of (a) are given). Propionyl and butyryl are preferably exemplified.
The degree of substitution of the acyl group in the β -1, 3-glucan derivative is not limited. The degree of substitution of the acyl group may be referred to as DS. The degree of substitution of the acyl groups in the β -1, 3-glucan derivative is an average of the number of acyl groups substituted (with acyl groups introduced) in 3 hydroxyl groups in the β -1, 3-glucan unit. Therefore, in theory, the upper limit of the degree of substitution of the acyl group in the β -1, 3-glucan derivative is 3.0. The degree of substitution of the acyl group in the β -1, 3-glucan derivative is, for example, 1.5 or more, preferably 2.0 or more, and 3.0 or less, preferably less than 3.0, more preferably 2.9 or less. When the degree of substitution of the acyl group in the β -1, 3-glucan derivative is not less than the above lower limit or not more than the upper limit, the film formability by hot pressing is excellent.
The type, physical properties and production method of the beta-1, 3-glucan derivative are described in, for example, japanese patent application laid-open No. 2018-154723. The degree of substitution of acyl groups in the beta-1, 3-glucan derivative can be controlled by 1 H-NMR was obtained. Based on 1 The measurement of H-NMR is described in, for example, japanese patent application laid-open No. 2015-124183.
< resin >)
The resin is a component that ensures shape retention of the film and improves mechanical strength of the film. The resin is at least 1 selected from the group consisting of rosin-based resin, terpene-based resin and petroleum-based resin. The classification of rosin-based resin, terpene-based resin, and petroleum-based resin may be partially repeated without strictly distinguishing them from each other. Specifically, the resin includes resins classified as rosin-based resins and terpene-based resins. The resin includes resins classified as rosin-based resins and petroleum-based resins. Further, the resin includes resins classified as terpene-based resins and as petroleum-based resins.
< rosin resin >)
Examples of the rosin-based resin include disproportionated rosin, rosin ester, phenol-modified rosin, hydrogenated rosin, polymerized rosin, maleated rosin, fumarated rosin, disproportionated maleic acid-modified rosin resin, and rosin metal salt. The rosin ester comprises pentaerythritol ester modified rosin resin. Phenol modified rosins are sometimes referred to as terpene phenol resins. They may be used alone or in combination. The rosin-based resin is preferably a rosin ester or a rosin metal salt from the viewpoint of improving mechanical strength.
The softening point of the rosin-based resin is not limited. Specifically, the softening point of the rosin-based resin by the ring and ball method is, for example, 110 ℃ or higher, and 170 ℃ or lower.
< terpene resin >)
Examples of the terpene resin include terpene resins, hydrides of terpene resins, aromatic modified terpene resins, phenol modified terpene resins, and hydrides of phenol modified terpene resins. They may be used alone or in combination. The terpene-based resin is preferably a phenol-modified terpene resin or a terpene resin, and more preferably a phenol-modified terpene resin from the viewpoint of improving the tensile elastic modulus and the maximum stress of the film. Phenolic modified terpene resins are sometimes referred to as terpene phenolic resins.
The softening point of the terpene resin is not limited. Specifically, the softening point of the terpene resin by the ring and ball method is, for example, 15 ℃ or higher, preferably 60 ℃ or higher, more preferably 100 ℃ or higher, and 170 ℃ or lower, preferably 140 ℃ or lower. When the softening point of the terpene resin by the ring and ball method is not less than the lower limit, the tensile elastic modulus and the maximum stress of the film can be improved.
< Petroleum-based resin >)
Examples of the petroleum resin include aliphatic (C5) petroleum resins, aromatic (C9) petroleum resins, aliphatic/aromatic copolymerized (C5/C9) petroleum resins, hydrides thereof, modified products thereof (for example, maleic anhydride modified products), coumarone resins, coumarone-indene resins, and styrene tackifiers. They may be used alone or in combination. The petroleum resin is preferably a hydride from the viewpoint of improving mechanical strength, and more preferably a hydride of an aromatic (C9) petroleum resin.
The hydrogenation rate in the hydride is not limited. The hydrogenation ratio is, for example, 50% or more, preferably 80% or more from the viewpoint of improving the mechanical strength, and further, 100% or less, for example.
The softening point of the resin is not limited. The softening point of the resin obtained by the ring and ball method is, for example, 25℃or higher, and 170℃or lower.
Rosin-based resin, terpene-based resin and petroleum-based resin can be obtained by 1 The identification is performed by H-NMR spectrum, FT-IR spectrum, gel permeation chromatograph and/or mass spectrum.
< compounding ratio of resin >
The resin is 90 parts by weight or less per 100 parts by weight of the beta-1, 3-glucan derivative. If the weight part of the resin exceeds 90 parts by weight relative to 100 parts by weight of the beta-1, 3-glucan derivative, the shape retention of the film cannot be ensured, and the tensile elastic modulus and the tensile maximum stress are lowered. That is, the mechanical strength of the film is insufficient.
The resin is preferably 10 parts by weight or more, more preferably 20 parts by weight or more, still more preferably 30 parts by weight or more, particularly preferably 50 parts by weight or more, based on 100 parts by weight of the β -1, 3-glucan derivative, for example, from the viewpoint of sufficiently improving the mechanical strength of the film. The resin is preferably 80 parts by weight or less, more preferably 70 parts by weight or less, and further preferably 60 parts by weight or less, from the viewpoint of further improving the tensile elastic modulus, relative to 100 parts by weight of the β -1, 3-glucan derivative.
< additive >)
The resin may contain an additive in an appropriate ratio within a range that does not inhibit the effect of the present invention. Examples of the additives include other base polymers, other resins, leveling agents, plasticizers, fillers, stabilizers, preservatives, and anti-aging agents.
< Properties of film >
The thickness of the film is not limited. The thickness of the film is, for example, 0.1 μm or more, preferably 1 μm or more, and, for example, 1000 μm or less, preferably 250 μm or less.
The film has, for example, no tackiness (adhesiveness) and also has high toughness.
Specifically, the tensile modulus of elasticity (Young's modulus) of the film at 23℃is, for example, 100MPa or more, preferably 150MPa or more, more preferably 200MPa or more, still more preferably 300MPa or more, still more preferably 400MPa or more, 450MPa or more, 500MPa or more, 600MPa or more, 625MPa or more, 700MPa or more, and the like, is suitable. When the tensile elastic modulus of the film is not less than the lower limit, the film does not have tackiness (adhesiveness), is excellent in shape retention, and is excellent in mechanical strength. The upper limit of the tensile elastic modulus of the film at 23℃is not limited. Specifically, the film has a tensile elastic modulus at 23℃of 10000MPa or less, preferably 1000MPa or less, for example. When the tensile elastic modulus of the film is equal to or less than the upper limit, the film has excellent toughness.
The film has a maximum tensile stress at 23℃of, for example, 5MPa or more, preferably 12.5MPa or more, more preferably 15MPa or more, still more preferably 17.5MPa or more, and still more preferably 19MPa or more, 20MPa or more, 22MPa or more, and 25MPa or more. When the tensile maximum stress of the film is not less than the lower limit, the film has excellent mechanical strength. The upper limit of the maximum tensile stress of the film is not limited. Specifically, the film has a maximum tensile stress at 23 ℃ of 1000MPa or less, for example.
The measurement methods of the tensile elastic modulus and the tensile maximum stress are described in the examples below.
To manufacture a film, first, a film composition is prepared by compounding and mixing a β -1, 3-glucan derivative, a resin, and additives as needed. The film composition comprises a beta-1, 3-glucan derivative, a resin and, if desired, an additive. In addition, a solution containing the film composition may be prepared by dissolving the above components in a solvent. The kind of the solvent is not limited. The proportion of the solid component in the solution of the film composition is, for example, 1% by weight or more, preferably 3% by weight or more, and is, for example, less than 50% by weight, preferably 30% by weight or less.
As shown in fig. 1, a solution of the film composition is applied to the surface of the release sheet 2 shown by a broken line. The solution is then dried to form film 1. In the drying, heating is performed as needed. The drying conditions are not limited as long as the conditions are conditions that can remove the solvent contained in the solution. The surface of the release sheet 2 may be subjected to a release treatment.
Thus, the film 1 laminated on the release sheet 2 can be obtained.
Then, the release sheet 2 is peeled from the film 1 as indicated by the arrow in fig. 1.
Next, the pressure-sensitive adhesive tape 3 including the film 1 will be described with reference to fig. 2.
The pressure-sensitive adhesive tape 3 includes a film 1 and a pressure-sensitive adhesive layer 4 in this order on one side in the thickness direction.
The film 1 is a base film in the adhesive tape 3.
The pressure-sensitive adhesive layer 4 is disposed on one surface in the thickness direction of the film 1. The adhesive layer 4 is formed of an adhesive composition. The adhesive composition is not limited. The thickness of the adhesive layer 4 is not limited.
The thickness of the pressure-sensitive adhesive tape 3 is, for example, 1 μm or more and, for example, 1100 μm or less.
Effect of film and adhesive tape
The film 1 is excellent in mechanical strength.
The pressure-sensitive adhesive tape 3 has the film 1 and thus has excellent mechanical strength.
Modified example of adhesive tape
In the modification, the same members and steps as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. The modified example can have the same operational effects as those of the first embodiment unless specifically described. Further, one embodiment and its modification can be appropriately combined.
As shown by the broken line in fig. 2, the adhesive tape 3 may further include a second release sheet 5. The second release sheet 5 is disposed on one surface of the pressure-sensitive adhesive layer 4 in the thickness direction.
As shown in fig. 3, the pressure-sensitive adhesive tape 3 may further include a film 1 and pressure-sensitive adhesive layers 4 disposed on the front and rear surfaces thereof, respectively. In the pressure-sensitive adhesive tape 3 of fig. 3, the pressure-sensitive adhesive layer 4, the film 1, and the pressure-sensitive adhesive layer 4 are disposed in this order on one side in the thickness direction.
Examples
The present invention will be further specifically described below with reference to synthesis examples, examples and comparative examples. The present invention is not limited to any of the synthesis examples, and comparative examples. Specific values such as the blending ratio (content ratio), physical property value, and parameter used in the following description may be used instead of the upper limit value (defined as "lower" or "smaller" value) or the lower limit value (defined as "upper" or "exceeding" value) described in the above-described "specific embodiment" and corresponding to the blending ratio (content ratio), physical property value, and parameter. In the following description, unless otherwise specified, "parts" and "%" are based on weight.
< Synthesis of beta-1, 3-glucan derivative >
Synthesis example 1 >
Synthesis of butyrylated beta-1, 3-glucan (R in RCO has 3 carbon atoms and the degree of substitution of acyl group is 2.8)
To a reaction vessel equipped with a cooling tube, a nitrogen inlet tube, a thermometer and a stirrer, 6g of beta-1, 3-glucan (Euglena Co Ltd: 37.0mmol of glucose fraction) and 500mL of dehydrated pyridine (Fuji photo-pure chemical Co., ltd.) were added, and the mixture was stirred under a nitrogen atmosphere at 92℃for 0.5 hours. 19.7mL (185.0 mmol, fuji photo Co., ltd.) of butyryl chloride was added to the pyridine solution, and the mixture was heated to 60℃and stirred for 1 hour. Thus, a reaction mixture was prepared.
Then, an intermediate of the solid is obtained from the reaction mixture. First, after 1 hour from the start of the reaction, 800mL of water was added to the reaction mixture, and the mixture was cooled to room temperature to precipitate a solid. The resulting solid was then taken out and dissolved in 500mL of ethyl acetate to prepare an ethyl acetate solution. The toluene solution was poured into 1000mL of methanol under stirring, and 1000mL of water was further poured to obtain a solid. The washing was performed by repeating the operations of dissolving the solid in ethyl acetate, injecting into methanol, and adding water twice, to obtain a solid (reprecipitation). The solid was dried under reduced pressure at 60℃for 4 hours. Thus, butyrylated β -1, 3-glucan was obtained. That is, butyrylated β -1, 3-glucan is a β -1, 3-glucan derivative in which butyryl groups are introduced into β -1, 3-glucan.
In addition, by 1 H-NMR was performed to determine the substitution degree of butyryl group in butyrylated beta-1, 3-glucan. 1 In H-NMR, the signal of the hydroxyl-forming hydrogen atom in the glucose unit was combined with the signal of the butyryl group (C 3 H 7 CO) and detecting them. The degree of substitution of butyryl (acyl) was determined based on the integral values of the 2 signals. As a result, the Degree of Substitution (DS) was 2.8. The Degree of Substitution (DS) of the acyl group in the beta-1, 3-glucan derivative in the following synthesis examples was also determined in the same manner as described above.
Synthesis example 2
Synthesis of < propionylated beta-1, 3-glucan (R in RCO has 2 carbon atoms and the degree of substitution of acyl group is 2.8 >)
The same procedure as in Synthesis example 1 was repeated to obtain propionylated beta-1, 3-glucan. Here, 16.17mL (185.0 mmol, fuji photo Co., ltd.) of propionyl chloride was blended instead of 19.7mL (185.0 mmol, fuji photo Co., ltd.) of butyryl chloride.
Comparative Synthesis example 1 >
Synthesis of octanoylated beta-1, 3-glucan (R in RCO has 7 carbon atoms and the degree of substitution of acyl group is 2.8)
The same procedure as in Synthesis example 1 was repeated to obtain octanoylated beta-1, 3-glucan. 19.7mL (185.0 mmol, fuji photo and Kagaku Co., ltd.) of butyryl chloride was changed to 31.58mL (185.0 mmol, fuji photo and Kagaku Co., ltd.). At the time of reprecipitation, the solid was dissolved in 300mL of toluene, and 1000mL of methanol was injected.
< manufacturing of film >)
Example 1 >
The acylated β -1, 3-glucan (dried product) of synthesis example 1 was dissolved in toluene to prepare a toluene solution of acylated β -1, 3-glucan having a solid content concentration of 5% by weight.
In addition, penselD-125 (rosin ester, softening point 120 to 130 ℃ C. Obtained by ring and ball method) as a rosin resin was dissolved in toluene to prepare a toluene solution of a rosin resin having a solid content concentration of 50% by weight.
Then, a toluene solution of acylated beta-1, 3-glucan was compounded and mixed with a toluene solution of the above resin. The weight part of the resin based on 100 parts by weight of the acylated beta-1, 3-glucan was set to 30 parts by weight. Thus, a solution of the film composition was prepared.
A solution of the film composition was applied to the surface (release treated surface) of the release sheet 2 formed of DIAFOIL MRF25 (polyethylene terephthalate, thickness 25 μm, mitsubishi chemical Co., ltd.) by using a film applicator (manufactured by TESTER SANGYO CO,. Then, the mixture was dried by heating at 60℃for 5 minutes, and further dried by heating at 100℃for 5 minutes. Thus, the film 1 having a thickness of 50 μm was produced in contact with the release sheet 2.
Example 2 to example 11 and comparative example 1 to comparative example 3 >
The films 1 of examples 2 to 11 and comparative examples 1 to 3 were produced in the same manner as in example 1. The following describes the modification points with respect to example 1. Tables 1 to 3 can be referred to.
Example 2 >
The weight part of the resin was changed from 30 to 50 weight parts based on 100 weight parts of the acylated beta-1, 3-glucan.
Example 3 >
The weight part of the resin was changed from 30 to 70 weight parts based on 100 weight parts of the acylated beta-1, 3-glucan.
Comparative example 1 >
No resin was compounded.
Comparative example 2 >
The weight part of the resin was changed from 30 to 100 weight parts based on 100 weight parts of the acylated beta-1, 3-glucan.
Example 4 >
Instead of PenselD-125 (softening point 120 to 130 ℃ C. By Cyclo Process, co., ltd.) as a rosin-based resin, penselD-160 (softening point 150 to 165 ℃ C. By Cyclo Process, co., ltd., rosin ester) as a rosin-based resin was used.
Example 5 >
Instead of PenselD-125 (softening point 120 to 130 ℃ C. By Cyclo Process, rosin ester, available from Cyclo chemical Co., ltd.) as a rosin-based resin, TAMANOL901 (softening point 125 to 135 ℃ C. By Cyclo Process, phenol-modified rosin, available from Cyclo chemical Co., ltd.) as a rosin-based resin was used.
Example 6 >
Instead of PenselD-125 (softening point 120 to 130 ℃ C. Obtained by ring and ball method, available from Kunststoff chemical Co., ltd.) as a rosin-based resin, pine crystal KR-50M (softening point 145 to 160 ℃ C. Obtained by ring and ball method, available from Kunststoff chemical Co., ltd.) as a rosin-based resin was used.
Example 7 >
Instead of PenselD-125 (rosin ester, softening point 120-130 ℃ C. By ring and ball method) as a rosin resin, YS Polyster T-30 (YASUHARACHECAL CO., LTD., phenol modified terpene resin, softening point 25-35 ℃ C. By ring and ball method) as a terpene resin was used.
Example 8 >
Instead of PenselD-125 (softening point 120-130 ℃ C. Obtained by the ring and ball method, available from Kunchaku chemical Co., ltd.) as a rosin-based resin, YS Polyster T-130 (YASUHARACHECAL CO., LTD., phenol-modified terpene resin, softening point 125-135 ℃ C. Obtained by the ring and ball method) as a terpene-based resin was used.
Example 9 >
Instead of PenselD-125 (rosin ester, softening point 120-130 ℃ C. By ring and ball method) as a rosin-based resin, YS resin PX-1250 (YASUHARACHECIMICAL CO., LTD., terpene resin, softening point 120-130 ℃ C. By ring and ball method) as a terpene-based resin was used.
Example 10 >
Arkon P-125 (hydrogenation product of aromatic (C9 series) petroleum resin, which is petroleum resin, is used as the raw material of the resin instead of PenselD-125 (softening point 120-130 ℃ C. Obtained by ring and ball method, available from Kagaku chemical Co., ltd.) which is rosin resin.
Example 11 >
Propionylated beta-1, 3-glucan of Synthesis example 2 was used instead of the butyrylated beta-1, 3-glucan of Synthesis example 1. That is, in example 11, the acyl group in the β -1, 3-glucan derivative was changed from butyryl to propionyl (R in RCO is 2).
Comparative example 3 >
The octanoylated β -1, 3-glucan of comparative synthesis example 1 was used in place of the butyrylated β -1, 3-glucan of synthesis example 1. That is, in comparative example 3, the acyl group in the β -1, 3-glucan derivative was changed from butyryl group to octanoyl group (R in RCO is 7).
< evaluation >
The following matters of the films 1 of examples 1 to 11 and comparative examples 1 to 3 were evaluated. These results are shown in tables 1 to 3. In order to make comparison with other examples easier, example 1 is shown in tables 2 and 3.
< determination of mechanical Strength >
The film 1 was cut to a width of 10mm and a length of 50mm, and after cutting, the release sheet 2 was peeled from the film 1. Thus, a sample was prepared.
The tensile modulus of elasticity of the sample at 23℃and the tensile maximum stress of the sample at 23℃were determined by a tensile test using a universal tester. As a universal tester, autograph AG-X/R (Shimadzu corporation) was used. The stretching speed was 300 mm/min. The inter-chuck distance of the sample was 20mm. The test environment was a temperature of 23℃and a relative humidity of 50%. In the tensile test, an S-S (stress-strain) test was performed to obtain an S-S (stress-strain) line.
< tensile elastic modulus >)
The initial tensile elastic modulus was obtained from the obtained S-S (stress-strain) line as the tensile elastic modulus.
< maximum tensile stress >)
The maximum stress in the S-S (stress-strain) line until fracture was obtained as the tensile maximum stress.
TABLE 1
TABLE 2
TABLE 3
The present invention is provided as an exemplary embodiment of the present invention, but it is merely illustrative and not limitative. Variations of the present invention that are obvious to those skilled in the art are included in the claims.
Industrial applicability
The adhesive tape is provided with a film and an adhesive layer.
Description of the reference numerals
1. Film and method for producing the same
3. Adhesive tape
4. Adhesive layer
Claims (2)
1. A film, comprising:
beta-1, 3-glucan derivative having acyl group introduced into beta-1, 3-glucan, and
at least 1 resin selected from the group consisting of rosin-based resins, terpene-based resins and petroleum-based resins,
the acyl group is represented by RCO-, R is a hydrocarbon group having 1 to 5 carbon atoms,
the resin is 90 parts by weight or less per 100 parts by weight of the beta-1, 3-glucan derivative.
2. An adhesive tape, comprising:
the film of claim 1, and
and an adhesive layer disposed on one surface of the film in the thickness direction.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021-031890 | 2021-03-01 | ||
| JP2021098636 | 2021-06-14 | ||
| JP2021-098636 | 2021-06-14 | ||
| PCT/JP2022/008249 WO2022186125A1 (en) | 2021-03-01 | 2022-02-28 | Film and adhesive tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117015583A true CN117015583A (en) | 2023-11-07 |
Family
ID=88574797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202280018445.5A Pending CN117015583A (en) | 2021-03-01 | 2022-02-28 | Film and adhesive tape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117015583A (en) |
-
2022
- 2022-02-28 CN CN202280018445.5A patent/CN117015583A/en active Pending
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