JPS6148531B2 - - Google Patents
Info
- Publication number
- JPS6148531B2 JPS6148531B2 JP5178480A JP5178480A JPS6148531B2 JP S6148531 B2 JPS6148531 B2 JP S6148531B2 JP 5178480 A JP5178480 A JP 5178480A JP 5178480 A JP5178480 A JP 5178480A JP S6148531 B2 JPS6148531 B2 JP S6148531B2
- Authority
- JP
- Japan
- Prior art keywords
- polyester
- terminal carboxyl
- oxazoline
- acid
- groups
- 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.)
- Expired
Links
- 229920000728 polyester Polymers 0.000 claims description 44
- 150000001875 compounds Chemical class 0.000 claims description 33
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 26
- 125000000962 organic group Chemical group 0.000 claims description 22
- 229920006395 saturated elastomer Polymers 0.000 claims description 18
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 4
- KGWNRZLPXLBMPS-UHFFFAOYSA-N 2h-1,3-oxazine Chemical compound C1OC=CC=N1 KGWNRZLPXLBMPS-UHFFFAOYSA-N 0.000 description 20
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 20
- -1 polyethylene terephthalate Polymers 0.000 description 16
- 238000000034 method Methods 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- 239000002253 acid Substances 0.000 description 8
- 125000004432 carbon atom Chemical group C* 0.000 description 7
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 7
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 4
- 125000001931 aliphatic group Chemical group 0.000 description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 4
- 125000000753 cycloalkyl group Chemical group 0.000 description 4
- 150000002430 hydrocarbons Chemical group 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 3
- 125000003258 trimethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])[*:1] 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920001634 Copolyester Polymers 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical class C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 238000007259 addition reaction Methods 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 125000003710 aryl alkyl group Chemical group 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- CIDMUJMGDBSMQW-UHFFFAOYSA-N n-phenyl-4,5-dihydro-1,3-oxazol-2-amine Chemical compound O1CCN=C1NC1=CC=CC=C1 CIDMUJMGDBSMQW-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920000874 polytetramethylene terephthalate Polymers 0.000 description 2
- YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 2
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 2
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 2
- DUILGEYLVHGSEE-UHFFFAOYSA-N 2-(oxiran-2-ylmethyl)isoindole-1,3-dione Chemical compound O=C1C2=CC=CC=C2C(=O)N1CC1CO1 DUILGEYLVHGSEE-UHFFFAOYSA-N 0.000 description 1
- FGTYTUFKXYPTML-UHFFFAOYSA-N 2-benzoylbenzoic acid Chemical compound OC(=O)C1=CC=CC=C1C(=O)C1=CC=CC=C1 FGTYTUFKXYPTML-UHFFFAOYSA-N 0.000 description 1
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- ROVLJQDICPLANK-UHFFFAOYSA-N 2-ethoxy-3-hydroxybenzoic acid Chemical compound CCOC1=C(O)C=CC=C1C(O)=O ROVLJQDICPLANK-UHFFFAOYSA-N 0.000 description 1
- AIDLAEPHWROGFI-UHFFFAOYSA-N 2-methylbenzene-1,3-dicarboxylic acid Chemical compound CC1=C(C(O)=O)C=CC=C1C(O)=O AIDLAEPHWROGFI-UHFFFAOYSA-N 0.000 description 1
- UFMBOFGKHIXOTA-UHFFFAOYSA-N 2-methylterephthalic acid Chemical compound CC1=CC(C(O)=O)=CC=C1C(O)=O UFMBOFGKHIXOTA-UHFFFAOYSA-N 0.000 description 1
- WMRCTEPOPAZMMN-UHFFFAOYSA-N 2-undecylpropanedioic acid Chemical compound CCCCCCCCCCCC(C(O)=O)C(O)=O WMRCTEPOPAZMMN-UHFFFAOYSA-N 0.000 description 1
- BHZRZUBHFOODOU-UHFFFAOYSA-N 2h-oxazin-3-amine Chemical class NC1=CC=CON1 BHZRZUBHFOODOU-UHFFFAOYSA-N 0.000 description 1
- YAXGBZDYGZBRBQ-UHFFFAOYSA-N 4,5-dihydro-1,3-oxazol-2-amine Chemical class NC1=NCCO1 YAXGBZDYGZBRBQ-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- FQYUMYWMJTYZTK-UHFFFAOYSA-N Phenyl glycidyl ether Chemical compound C1OC1COC1=CC=CC=C1 FQYUMYWMJTYZTK-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 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
- 150000001718 carbodiimides Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- QYQADNCHXSEGJT-UHFFFAOYSA-N cyclohexane-1,1-dicarboxylate;hydron Chemical compound OC(=O)C1(C(O)=O)CCCCC1 QYQADNCHXSEGJT-UHFFFAOYSA-N 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- FOTKYAAJKYLFFN-UHFFFAOYSA-N decane-1,10-diol Chemical compound OCCCCCCCCCCO FOTKYAAJKYLFFN-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006704 dehydrohalogenation reaction Methods 0.000 description 1
- 125000001142 dicarboxylic acid group Chemical group 0.000 description 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical group C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 1
- KZTYYGOKRVBIMI-UHFFFAOYSA-N diphenyl sulfone Chemical group C=1C=CC=CC=1S(=O)(=O)C1=CC=CC=C1 KZTYYGOKRVBIMI-UHFFFAOYSA-N 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- FCJSHPDYVMKCHI-UHFFFAOYSA-N phenyl benzoate Chemical compound C=1C=CC=CC=1C(=O)OC1=CC=CC=C1 FCJSHPDYVMKCHI-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Polyesters Or Polycarbonates (AREA)
Description
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The present invention relates to a method for producing a polyester having a small amount of terminal carboxyl groups. More specifically, the present invention relates to a method for producing a polyester having a small amount of terminal carboxyl groups, which is characterized by reacting a substantially linear saturated polyester with a compound having a specific structure. Saturated linear polyesters, particularly polyethylene terephthalate, polytetramethylene terephthalate, etc., have excellent physical properties and are widely used as fibers, films, plastics, and the like. Among the physical properties of this polyester, it is known that the humidity and heat stability in particular depends on the amount of terminal carboxyl groups of the polyester, and the lower the amount of terminal carboxyl groups, the better the humidity and heat stability. For this reason, various methods for producing polyesters having a small amount of terminal carboxyl groups have been proposed. One method is to react the terminal carboxyl group of polyester with a specific compound, such as adding and reacting an epoxy compound such as phenyl glycidyl ether or N-glycidyl phthalimide; Examples include a method of causing an addition reaction. However, the method using an epoxy compound has the disadvantage that the reactivity of the epoxy group with the terminal carboxyl group of the polyester is relatively low, and therefore a relatively long time is required for the reaction with the polyester, and the method using a carbodiimide has the problem of causing discoloration of the polymer. The present inventors have discovered that when a compound having a specific structure is reacted with a polyester, a polyester having a small amount of terminal carboxyl groups and less coloring can be obtained in an extremely short period of time, and has thus arrived at the present invention. That is, the present invention is characterized in that a substantially linear saturated polyester is reacted with a compound represented by the following general formula () in an amount of 0.1% to 5% by weight based on the saturated polyester. This invention relates to a method for producing polyester. In the formula, R 1 is a hydrogen atom or a monovalent organic group, and R 2 is a monovalent organic group. Moreover, X is a divalent organic group,
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ã®ææ©åºã§ãããThe ring structure of [Formula] is a 5-membered ring or a 6-membered ring. The acid components constituting the substantially linear saturated polyester in the present invention include terephthalic acid, isophthalic acid, naphthalene dicarboxylic acid, diphenyldicarboxylic acid, diphenylsulfonedicarboxylic acid, diphenoxyethanedicarboxylic acid, and diphenyl dicarboxylic acid. Ether dicarboxylic acid, methyl terephthalic acid,
Aromatic dicarboxylic acids such as methyl isophthalic acid; aliphatic dicarboxylic acids such as succinic acid, adipic acid, sebacic acid, decanedicarboxylic acid, dodecanedicarboxylic acid, etc.; alicyclic dicarboxylic acids such as cyclohexanedicarboxylic acid; ε-oxycaprone Examples include oxycarboxylic acids such as oxybenzoic acid and hydroxyethoxybenzoic acid, and among these, aromatic dicarboxylic acids, particularly terephthalic acid, are preferred. Moreover, in the above saturated polyester,
When the acid component is dicarboxylic acid, the glycol component includes ethylene glycol, trimethylene glycol, tetramethylene glycol, hexamethylene glycol, decamethylene glycol,
Examples include cyclohexane dimethylol, and among these, ethylene glycol and tetramethylene glycol are particularly preferred. It is also possible to use polyoxyalkylene glycol as part of the glycol component, and examples thereof include polyoxyethylene glycol, polyoxypropylene glycol, polyoxytetramethylene glycol, and copolymers thereof. When using polyoxyalkylene glycol, its average molecular weight is preferably from 500 to
5,000, more preferably 600 to 4,000, particularly preferably 800 to 3,000, and the amount used is about 5 to 85% by weight, preferably 10 to 85% by weight in the copolyester.
The amount to be copolymerized is about 80% by weight, more preferably about 15 to 75% by weight. The copolyester obtained by copolymerizing polyoxyalkylene glycol is preferably a block copolymer. In addition, the saturated polyester may be within a substantially linear range (for example, 1 mol % with respect to the total acid component).
(below), trifunctional or higher functional compounds such as trimethylolpropane, pentaerythritol, trimellitic acid, pyromellitic acid, etc., or monofunctional compounds such as benzoylbenzoic acid, diphenylcarboxylic acid, etc. may be copolymerized. . The degree of polymerization of the saturated polyester is such that the intrinsic viscosity of orthochlorophenol measured at 35° C. is preferably 0.4 or more, more preferably 0.45 or more, and particularly preferably 0.5 or more. In the present invention, the compound reacted with the above-mentioned saturated polyester is a compound represented by the following formula (). In the formula, R 1 is a hydrogen atom or a monovalent organic group, and R 2 is a monovalent organic group. Moreover, X is a divalent organic group,
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ããããã€The ring structure of [Formula] is a 5-membered ring or a 6-membered ring. This compound has high reactivity with the terminal carboxyl groups of the polyester, and has the effect of reducing the concentration of the terminal carboxyl groups of the polyester in a very short period of time by reacting with the terminal carboxyl groups of the molten polyester. In the general formula (), R 1 is a hydrogen atom or a monovalent organic group, and examples of this monovalent organic group include an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 5 to 12 carbon atoms, and a cycloalkyl group having 5 to 12 carbon atoms. Hydrocarbon groups such as aryl groups with 6 to 12 carbon atoms and aralkyl groups with 8 to 20 carbon atoms; aliphatic unsaturated carbonization that does not cause decomposition or reaction at the melting temperature of polyester (e.g., 20°C higher than the melting point of polyester) Examples include organic groups having a hydrogen group and the aliphatic unsaturated hydrocarbon group. More specifically, the alkyl group includes methyl, ethyl, propylene, isopropyl, butyl, pentyl, hexyl, octyl, etc.;
Examples of the cycloalkyl group include cyclopentyl and cyclohexyl; examples of the aryl group include phenyl and naphthyl. Examples of aliphatic unsaturated hydrocarbon groups that are stable at the melting temperature of polyester in an inert gas atmosphere include allyl groups and substituted allyl groups. Among these substituted allyl groups, metaallyl and crotyl groups are preferred. Furthermore, examples of the organic group having an aliphatic unsaturated group include those in which a portion of the hydrogen atoms of the above-mentioned hydrocarbon group is substituted with an unsaturated group such as an allyl group, a metaallyl group, or a crotyl group; ïŒ
Examples include organic groups containing atoms such as O and S (e.g., siasyl ring, isoshiasl ring, diphenyl ether residue, diphenyl sulfone residue, etc.) and those having the above-mentioned unsaturated groups. . Further, examples of the organic group for R 2 include the groups listed for the monovalent organic group for R 1 . Furthermore,
When both R 1 and R 2 are monovalent organic groups,
It is also possible that R 1 and R 2 are interconnected and thus form a ring. In the general formula (), X is a divalent organic group, and
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ã»Conixã®æ¹æ³ïŒMakromol.Chem.26 226
ïŒ1958ïŒïŒã«ãã€ãŠæž¬å®ããå€ã§ããã
å®æœäŸïŒãïŒåã³æ¯èŒäŸïŒ
極éç²åºŠ0.68åã³æ«ç«¯ã«ã«ããã·ã«åºé38åœ
éïŒïŒïŒïŒïœã®ããªãšãã¬ã³ã³ãã¬ãã¿ã¬ãŒã100éš
ãçªçŽ æ°æµäž280âã§æº¶èããããè¡šïŒã«ç€ºãå
åç©ïŒïŒã®æå®éãæ·»å åå¿ããããããã®å
å¿ã®éãå®è³ªçã«ããªããŒã®çè²ã¯èµ·ããªãã€
ããïŒååŸã®ããªãšã¹ãã«ã®æ¥µéç²åºŠåã³æ«ç«¯ã«
ã«ããã·ã«åºåœéãè¡šïŒã«ç€ºãã
å°ãè¡šïŒã«ã¯æ¯èŒãšããŠãååç©ïŒïŒãå
šã
æ·»å ããªãå Žåã«ã€ããŠã䜵èšããããè¡šïŒãã
æ¬çºæã®å Žåãååç©ïŒïŒãããªããŒã®æº¶èæ¡
件äžããªãšã¹ãã«ãšåå¿ããŠãããªãšã¹ãã«ã®æ«
端ã«ã«ããã·ã«åºéãèããæžå°ããããŠããã
ãšãããããThe ring structure of [Formula] can form a 5-membered ring or a 6-membered ring. Examples of such divalent organic groups include ethylene, substituted ethylene, trimethylene, and substituted trimethylene. In addition, the substituents of substituted ethylene and substituted trimethylene include alkyl groups having 1 to 10 carbon atoms, and 6 carbon atoms.
-12 aryl groups, C5-12 cycloalkyl groups, and C8-20 aralkyl groups. Among these X, ethylene and trimethylene are particularly preferred. Specific examples of the compound represented by the general formula () include 2-N-methylamino-2-oxazoline, 2-N-ethylamino-2-oxazoline,
2-N-propylamino-2-oxazoline, 2
-N-butylamino-2-oxazoline, 2-N
-Pentylamino-2-oxazoline, 2-N-
Hexylamino-2-oxazoline, 2-N-heptylamino-2-oxazoline, 2-N-octylamino-2-oxazoline, 2-N-allylamino-2-oxazoline, 2-N-phenylamino-2-oxazoline, 2 -N-naphthylamino-2-oxazoline, 2-N,N-dimethylamino-2-oxazoline, 2-N,N-diethylamino-2-oxazoline, 2-N,N-dipropylamino-2-oxazoline, 2 -N,N-dibutylamino-2-oxazoline, 2-N,N-
dihexylamino-2-oxazoline, 2-N,
N-diallylamino-2-oxazoline, 2-
N,N-phenylmethylamino-2-oxazoline, 2-N,N-phenylethylamino-2-oxazoline, 2-N,N-diphenylamino-2
-Oxazoline, 2-N-phenylamino-4,
4-dimethyl-2-oxazoline, 2-N,N-
Substituted aminooxazoline compounds such as diethylamino-4,4-dimethyl-2-oxazoline; 2-
N-methylamino-5,6-dihydro-4H,
1,3-oxazine, 2-N-ethylamino-
5,6-dihydro-4H,1,3-oxazine,
2-N-propylamino-5,6-dihydro-
4H,1,3-oxazine, 2-N-butylamino-5,6-dihydro-4H,1,3-oxazine, 2-N-bentylamino-5,6-dihydro-4H,1,3-oxazine , 2-N-hexylamino-5,6-dihydro-4H,1,3-oxazine, 2-N-heptylamino-5,6-dihydro-4H,1,3-oxazine, 2-N-octylamino- 5,6-dihydro-4H,1,3-
Oxazine, 2-N-allylamino-5,6-dihydro-4H,1,3-oxazine, 2-N-phenylamino-5,6-dihydro-4H,1,3
-Oxazine, 2-N-naphthylamino-5,6
-dihydro-4H,1,3-oxazine,2-
N,N-dimethylamino 5,6-dihydro-
4H,1,3-oxazine, 2-N,N-diethylamino-5,6-dihydro-4H,1,3-oxazine, 2-N,N-dipropylamino-5,
6-dihydro-4H,1,3-oxazine,2-
N,N-dibropylamino-5,6-dihydro-
4H,1,3-oxazine, 2-N,N-dibutylamino-5,6-dihydro-4H,1,3-oxazine, 2-N,N-dihexylamino-5,
6-dihydro-4H,1,3-oxazine,2-
N,N-diallylamino-5,6-dihydro-
4H,1,3-oxazine, 2-N,N-phenylethylamino-5,6-dihydro-4H,1,
3-Oxazine, 2-N,N-phenylethylamino-5,6-dihydro-4H,1,3,-oxazine, 2-N,N-diphenylamino-5,6
Substituted aminooxazine compounds such as -dihydro-4H,1,3-oxazine can be mentioned. These compounds may be used alone or in combination with
You may use more than one species in combination. The compound represented by the general formula () is, for example, a compound represented by the following formula (). In the formula, R 3 is a hydrogen atom or a monovalent organic group, R 4 is a monovalent organic group, Xâ² is a divalent organic group, and Y is C or Br. It can be easily synthesized by a ring-closing reaction accompanied by dehydrohalogenation by heating in water or optionally using caustic soda or caustic potassium. Moreover, as a synthesis method, not only the above-mentioned method but also other methods can be used as needed. In the general formula (), R 3 , R 4 , and X' correspond to R 1 , R 2 , and X in the general formula (), respectively. The compound represented by the general formula () has high reactivity, reacts efficiently with the terminal carboxyl group of the saturated polyester, and can significantly reduce the concentration of the terminal carboxyl group. The amount of such compounds used is 0.1% to 5% by weight based on the saturated polyester. If the amount is less than 0.1% by weight, the desired effect of the present invention will not be noticeable, and if it exceeds 5% by weight, no further effects can be expected. The more preferred usage amount is 0.2
% to Kg 4% by weight, particularly preferably 0.3% by weight
3% by weight. In the present invention, a saturated polyester and a predetermined amount of the compound represented by the above general formula () (hereinafter referred to as compound ()) are reacted, and the reaction method is to melt the saturated polyester and the compound (). A method in which a saturated polyester and a compound () are uniformly mixed while the polyester is melted, and after molding, the molded product is heat-treated to cause the unreacted compound () to react; Examples include a method in which the compound () is impregnated with the compound () and then heat-treated to cause the compound () to react, but the method described above is the most preferred. Further, the reaction temperature is preferably 150°C to 320°C, more preferably 200°C to 300°C, especially
240°C to 290°C is preferred. Furthermore, the reaction pressure may be increased pressure, but normal pressure or reduced pressure is preferred. The preferred reaction time varies depending on the reaction temperature, but
The time is about 30 seconds to 60 minutes, more preferably 1 minute to 30 minutes, particularly preferably 1 minute to 15 minutes. This reaction can be carried out not only by mixing and reacting the two in an ordinary polyester polymerization reactor with stirring, but also by mixing the two in an extruder, for example. For example, if they are mixed during yarn spinning, membrane formation, or plastic extrusion molding or injection molding, polyester fibers, films, and plastic molded products with a low carboxyl group content can be obtained. In the present invention, when the saturated polyester is reacted with the compound represented by the general formula (), various additives such as ultraviolet absorbers, heat stabilizers, flame retardants, and enhancers are added to the saturated polyester or during the reaction. Whitening agents, lubricants, nucleating agents, mold release agents, pigments, fillers, etc. may be added. Hereinafter, the present invention will be explained in detail with reference to Examples. still,
All "parts" in the examples are "parts by weight."
means. In addition, the amount of terminal carboxyl groups is
A. Conix's method (Makromol.Chem. 26 226
(1958)). Examples 1 to 6 and Comparative Example 1 100 parts of polyethylene terephthalate with an intrinsic viscosity of 0.68 and a terminal carboxyl group weight of 38 equivalents/10 6 g was melted at 280°C in a nitrogen stream, and a predetermined amount of the compound () shown in Table 1 was melted. An addition reaction was carried out. Substantially no coloration of the polymer occurred during this reaction. Table 1 shows the intrinsic viscosity and terminal carboxyl group equivalent of the polyester after 3 minutes. As a comparison, Table 1 also shows the case in which the compound () is not added at all, but from Table 1, in the case of the present invention, the compound () reacts with the polyester under the melting condition of the polymer, and the terminal carboxyl of the polyester is It can be seen that the base amount is significantly reduced.
ãè¡šã
å®æœäŸïŒã12åã³æ¯èŒäŸïŒ
極éç²åºŠ0.74åã³æ«ç«¯ã«ã«ããã·ã«åºåœé43åœ
éïŒïŒïŒïŒïœã®ããªããã©ã¡ãã¬ã³ãã¬ãã¿ã¬ãŒã
100éšã«è¡šïŒã«ç€ºãæå®éã®ååç©ïŒïŒããã¬
ã³ããã次ãã§ãšã¯ã¹ãã«ãŒããŒãã枩床240
âãå¹³åæ»çæéçŽïŒåã§æº¶èæŒåºãããŠã·ãŒã
ãåŸããåŸãããã·ãŒãã®æ¥µéç²åºŠåã³æ«ç«¯ã«ã«
ããã·ã«åºåœéãè¡šïŒã«ç€ºããã
å°ãè¡šïŒã«ã¯ååç©ïŒïŒãå
šãæ·»å ããªãå Ž
åã«ã€ããŠã䜵èšããããè¡šïŒãããã®ãã®ã®æ«
端ã«ã«ããã·ã«åºãå¢å ããŠããã®ã«æ¯ã¹ãæ¬çº
æã®åŠãååç©ïŒïŒãæ·»å åå¿ãããå Žåã«ã¯
èããããªãšã¹ãã«ã®æ«ç«¯ã«ã«ããã·ã«åºåœéã
æžå°ããŠããã®ããããã[Table] Examples 7 to 12 and Comparative Example 2 Intrinsic viscosity 0.74 and terminal carboxyl group equivalent 43 equivalents/10 6 g of polytetramethylene terephthalate
A predetermined amount of the compound () shown in Table 2 was blended into 100 parts, and then heated to 240°C using an extruder.
A sheet was obtained by melt extrusion at a temperature of about 3 minutes at an average residence time of about 3 minutes. Table 2 shows the intrinsic viscosity and terminal carboxyl group equivalent of the obtained sheet. Table 2 also shows the case where compound () is not added at all, but Table 2 shows that the number of terminal carboxyl groups in this product increases, whereas when compound () is added and reacted as in the present invention. It can be seen that the terminal carboxyl group equivalent of the polyester is significantly reduced.
ãè¡šã
å®æœäŸ13åã³æ¯èŒäŸïŒ
åãçŽ500ÎŒã®ããªãšãã¬ã³ãã¬ãã¿ã¬ãŒã
ïŒæ¥µéç²åºŠ0.64ãæ«ç«¯ã«ã«ããã·ã«åºåœé32åœé/
ïŒïŒïŒïœïŒããïŒââããšãã«ã¢ããâïŒâãªã
ãµãŸãªã³ãçŽïŒééïŒ
溶解ãããããã«ãšã³æº¶æ¶²
äžã«ãã«ãšã³ã®éæµæž©åºŠäž30åé浞挬ããããã
次ãã§ã該ã·ãŒããååºã也ç¥åŸã空æ°äž180â
ã§ïŒæéç±åŠçãããšããã極éç²åºŠã¯0.62ãæ«
端ã«ã«ããã·ã«åºåœéã¯ïŒåœé/106ïœãšãªã€ãã
æ¯èŒãšããŠãã«ãšã³æº¶æ¶²ã«æµžæŒ¬ããããšãªã
ã«ãäžèšãšåãæ¡ä»¶ã§ã·ãŒããç±åŠçããå Žåã«
ã¯ãã·ãŒãã®æ¥µéç²åºŠã¯0.62ãæ«ç«¯ã«ã«ããã·ã«
åºåœéã¯36åœé/106ïœãšãªã€ãã[Table] Example 13 and Comparative Example 3 Polyethylene terephthalate with a thickness of about 500ÎŒ (intrinsic viscosity 0.64, terminal carboxyl group equivalent 32 equivalents/
10 6 g) was immersed in a toluene solution in which about 2% by weight of 2-N-phenylamino-2-oxazoline was dissolved at the reflux temperature of toluene for 30 minutes.
Next, take out the sheet, dry it, and store it in the air at 180°C.
When heat treated for 1 hour, the intrinsic viscosity was 0.62 and the terminal carboxyl group equivalent was 6 equivalents/10 6 g. As a comparison, when the sheet was heat-treated under the same conditions as above without being immersed in a toluene solution, the sheet had an intrinsic viscosity of 0.62 and a terminal carboxyl group equivalent of 36 equivalents/10 6 g.
Claims (1)
ãªãšã¹ãã«ã«å¯ŸããŠ0.1ééïŒ ä¹è³ïŒééïŒ ã®äž
èšäžè¬åŒïŒïŒã§ç€ºãããååç©ãšã åŒäžãR1ã¯æ°ŽçŽ åååã¯ïŒäŸ¡ã®ææ©åºã§ãã
R2ã¯ïŒäŸ¡ã®ææ©åºã§ããããŸãã¯ïŒäŸ¡ã®æ
æ©åºã§ããããåŒãã®ç°æ§é ã¯ïŒå¡ç°å ã¯ïŒå¡ç°ã§ããã åå¿ããããããšãç¹åŸŽãšããæ«ç«¯ã«ã«ããã·ã«
åºéã®å°ãªãããªãšã¹ãã«ã®è£œé æ¹æ³ã[Claims] 1. A substantially linear saturated polyester and a compound represented by the following general formula () in an amount of 0.1% to 5% by weight based on the saturated polyester. In the formula, R 1 is a hydrogen atom or a monovalent organic group
R 2 is a monovalent organic group. Further, X is a divalent organic group, and the ring structure of [Formula] is a 5-membered ring or a 6-membered ring. A method for producing a polyester having a small amount of terminal carboxyl groups, which comprises reacting the polyester.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5178480A JPS56149425A (en) | 1980-04-21 | 1980-04-21 | Preparation of polyester containing little carboxyl end-group |
EP80107518A EP0030350B1 (en) | 1979-12-05 | 1980-12-02 | Method for reducing the terminal carboxyl group content of a saturated polyester, a saturated polyester having a reduced terminal carboxyl group content, and a molded article composed of such a saturated polyester |
DE8080107518T DE3069425D1 (en) | 1979-12-05 | 1980-12-02 | Method for reducing the terminal carboxyl group content of a saturated polyester, a saturated polyester having a reduced terminal carboxyl group content, and a molded article composed of such a saturated polyester |
US06/213,051 US4351936A (en) | 1979-12-05 | 1980-12-04 | Method for reducing the terminal carboxyl group content of a saturated polyester, a saturated polyester having a reduced terminal carboxyl group content, and a molded article composed of such a saturated polyester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5178480A JPS56149425A (en) | 1980-04-21 | 1980-04-21 | Preparation of polyester containing little carboxyl end-group |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56149425A JPS56149425A (en) | 1981-11-19 |
JPS6148531B2 true JPS6148531B2 (en) | 1986-10-24 |
Family
ID=12896564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5178480A Granted JPS56149425A (en) | 1979-12-05 | 1980-04-21 | Preparation of polyester containing little carboxyl end-group |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56149425A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5936129A (en) * | 1982-08-23 | 1984-02-28 | Teijin Ltd | Magnetic recording item |
-
1980
- 1980-04-21 JP JP5178480A patent/JPS56149425A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS56149425A (en) | 1981-11-19 |
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