SU274102A1 - METHOD OF STABILIZATION OF PULPERS AIRS - Google Patents
METHOD OF STABILIZATION OF PULPERS AIRSInfo
- Publication number
- SU274102A1 SU274102A1 SU1299641A SU1299641A SU274102A1 SU 274102 A1 SU274102 A1 SU 274102A1 SU 1299641 A SU1299641 A SU 1299641A SU 1299641 A SU1299641 A SU 1299641A SU 274102 A1 SU274102 A1 SU 274102A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- stabilization
- pulpers
- airs
- cellulose ethers
- thermo
- Prior art date
Links
- 238000011105 stabilization Methods 0.000 title description 3
- 229920003086 cellulose ether Polymers 0.000 description 6
- 239000003381 stabilizer Substances 0.000 description 6
- 238000010525 oxidative degradation reaction Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 229940081735 acetylcellulose Drugs 0.000 description 4
- FYADHXFMURLYQI-UHFFFAOYSA-N 1,2,4-triazine Chemical class C1=CN=NC=N1 FYADHXFMURLYQI-UHFFFAOYSA-N 0.000 description 2
- 229920002301 Cellulose acetate Polymers 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 230000000087 stabilizing Effects 0.000 description 2
- 150000003918 triazines Chemical class 0.000 description 2
- 229960000583 Acetic Acid Drugs 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000003107 substituted aryl group Chemical group 0.000 description 1
Description
Изобретение касаетс стабилизации эфиров целлюлозы от термоокислительной деструкции в процессе их эксплуатации и переработки.The invention relates to the stabilization of cellulose ethers from thermo-oxidative degradation during their operation and processing.
Известны стабилизаторы эфиров целлюлозы от термоокислительной деструкции. Однако их эффективность недостаточна и не сочетаетс со стабилизацией от действи ультрафиолетовых лучей. Кроме того, известен способ стабилизации органических полимеров как синтетических , так и продуктов модификации природных полимеров, например эфиров целлюлозы , от деструкции под действием ультрафиолетовых лучей, по которому в качестве стабилизаторов примен ют производные триазина общей формулыKnown stabilizers of cellulose ethers from thermo-oxidative degradation. However, their effectiveness is insufficient and is not combined with stabilization from the action of ultraviolet rays. In addition, a method is known for stabilizing organic polymers of both synthetic and modifying natural polymers, such as cellulose ethers, from destruction by ultraviolet rays, in which triazine derivatives of the general formula are used as stabilizers.
,хx
х- сhs
c-z-yc-z-y
где X - замещенный арил;where X is substituted aryl;
Z-группа -О-,-S- или N(R)-, в которой R может быть Н или алкилом .Z-group -O -, - S - or N (R) -, in which R can be H or alkyl.
RI - алкил, алкенил, циклоалкил, арил, а этерпфицированный или ацилированный гндроксил или галоид .RI is alkyl, alkenyl, cycloalkyl, aryl, and an esterified or acylated hydroxyl or halogen.
п может быть О-2, а Ri - заместителем в полонсении 3, 4 и 5.n may be O-2, and Ri may be a surrogate in polonseny 3, 4, and 5.
Целью изобретени вл етс повышение устойчивости к термоокислительной деструкции эфиров целлюлозы. Дл этого в качестве производных триазина используют 6-амино-4оксифениламино-2-о-оксифенилтриазин -1,3,5 или 2-о-оксифенил - 4 - - анизидино - б-амииотриазин-1 ,3,5, или 2-д-оксифениламинотриаз1Ш1 ,3,5, или 2,4-бис - rt-метоксифениламинотриазин-1 ,3,5, дл этой цели ранее не примен вшиес .The aim of the invention is to increase the resistance to thermo-oxidative degradation of cellulose ethers. For this, 6-amino-4-oxyphenylamino-2-o-hydroxyphenyl triazine -1,3,5 or 2-o-hydroxyphenyl-4 - - anisidino-b-amyiotriazin-1, 3.5, or 2-d are used as triazine derivatives. -oxiphenylaminotriaz1SH1, 3.5, or 2,4-bis-rt-methoxyphenylaminotriazin-1, 3.5, has not previously been used for this purpose.
Стабилизаторы можно вводить как на стадии получени эфиров целлюлозы, так и в процессе их переработки нз растворов. Пример. Из растворов ацетилцеллюлозыStabilizers can be introduced both at the stage of the preparation of cellulose ethers and during their processing in nz solutions. Example. From acetylcellulose solutions
в лед ной уксусной кислоте, содержащих стабилизаторы в количестве 0,005 люль на 1 кг ацетилцеллюлозы, известным способом отливают пленки. Последние сушат, прогревают при 220°С в течение 30 мин в среде кислородаIn glacial acetic acid containing stabilizers in the amount of 0.005 people per 1 kg of cellulose acetate, films are cast in a known manner. The latter are dried, heated at 220 ° C for 30 minutes in an oxygen environment
Удельна в зкость 0,25%-ного раствора ацетилцеллюлозы в ацетоне после термоокпслительной деструкции в зависимости от примен вшегос стабилизатора:The specific viscosity of a 0.25% acetylcellulose solution in acetone after thermal oxidative degradation, depending on the application of the stabilizer:
6-амино-4-п-оксифениламино-2-ооксифенилтриазин-1 ,3,50,486-amino-4-p-hydroxyphenylamino-2-oxyphenyltriazin-1, 3.50.48
2-о-оксифенил-4-л-анизидино-6-аминотриазин-1 ,3,50,542-o-hydroxyphenyl-4-l-anisidino-6-aminotriazin-1, 3,50,54
2-п-оксифениламинотриазин-1,3,50,492-p-hydroxyphenylaminotriazine-1,3,50,49
2,4-бис-п-метоксифе11Иламинотриазин1 ,3,52,4-bis-p-methoxyfe11Ilaminotriazin1, 3,5
0,4-9 0.4-9
Без стабилизатора 0,17Without stabilizer 0.17
До термоокислительиой деструкции стабилизированна и нестабилизированна ацетилцеллюлоза имела удельную в зкость 0,25%-ного раствора в ацетоне 0,82.Prior to thermo-oxidative degradation, stabilized and unstabilized cellulose acetate had a specific viscosity of 0.25% solution in acetone of 0.82.
Предмет изобретени Subject invention
Способ стабилизации эфиров целлюлозы путем обработки их производными триазина, отличающийс тем, что, с целью повышени З стоцчивости к термоокислительной деструк-. ции, Б качестве производных триазина примен ют 6-амино-4-«-оксифениламино-2-о-оксифенилтриазин-1 ,3,5 или 2-о-оксифенил-4-/г-анизидино-б-аминотриазин-1 ,3,5, или 2-«-оксифениламинотриазин-1 ,3,5, или 2,4-бис-п-метоксифениламинотриазин-1 ,3,5.A method of stabilizing cellulose ethers by treating them with triazine derivatives, characterized in that, with the aim of increasing H to relate to thermo-oxidative destruction. 6-amino-4 - "- hydroxyphenylamino-2-o-hydroxyphenyltriazin-1, 3.5 or 2-o-hydroxyphenyl-4- / g-anisidino-b-aminotriazin-1, 3 are used as triazine derivatives. , 5, or 2 - "- hydroxyphenylaminotriazin-1, 3.5, or 2,4-bis-p-methoxyphenylaminotriazin-1, 3.5.
Publications (1)
Publication Number | Publication Date |
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SU274102A1 true SU274102A1 (en) |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6875781B2 (en) | 2003-04-04 | 2005-04-05 | Cell Therapeutics, Inc. | Pyridines and uses thereof |
US7291616B2 (en) | 2001-10-31 | 2007-11-06 | Cell Therapeutics, Inc. | Aryl triazines as LPAAT-β inhibitors and uses thereof |
US7419984B2 (en) | 2002-10-17 | 2008-09-02 | Cell Therapeutics, Inc. | Pyrimidines and uses thereof |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7291616B2 (en) | 2001-10-31 | 2007-11-06 | Cell Therapeutics, Inc. | Aryl triazines as LPAAT-β inhibitors and uses thereof |
US7618968B2 (en) | 2001-10-31 | 2009-11-17 | Cell Therapeutics, Inc. | Aryl triazines as LPAAT-β inhibitors and uses thereof |
US7419984B2 (en) | 2002-10-17 | 2008-09-02 | Cell Therapeutics, Inc. | Pyrimidines and uses thereof |
US6875781B2 (en) | 2003-04-04 | 2005-04-05 | Cell Therapeutics, Inc. | Pyridines and uses thereof |
US7208507B2 (en) | 2003-04-04 | 2007-04-24 | Cell Therapeutics, Inc. | Pyridines and uses thereof |
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