SU54203A1 - The method of obtaining synthetic tanning agents - Google Patents
The method of obtaining synthetic tanning agentsInfo
- Publication number
- SU54203A1 SU54203A1 SU54203A1 SU 54203 A1 SU54203 A1 SU 54203A1 SU 54203 A1 SU54203 A1 SU 54203A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- tanning agents
- synthetic tanning
- phenol
- water
- parts
- Prior art date
Links
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims description 4
- 238000006277 sulfonation reaction Methods 0.000 claims description 3
- 238000007796 conventional method Methods 0.000 claims 1
- 230000003993 interaction Effects 0.000 claims 1
- 239000011541 reaction mixture Substances 0.000 claims 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Natural products OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000005011 phenolic resin Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 210000003491 Skin Anatomy 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229960005188 collagen Drugs 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 150000004682 monohydrates Chemical class 0.000 description 1
- -1 phenol aldehyde Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N sulfonic acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
Description
Как известно, синтетические дубители типа сульфокислот, изготовленные на базе фенолов, обладают р дом существенных преимуществ. Сюда относ тс хорошее формирование кожи, повышенный уровень св зывани с коллагеном и повышенна устойчивость к воздействию тепла и влаги.As is known, synthetic tannins of the sulfonic acid type, made on the basis of phenols, have a number of significant advantages. These include good skin formation, an increased level of binding to collagen and increased resistance to heat and moisture.
Оказалось, что указанные свойства могут быть еще значительно улучшены путем введени в сульфомассу, полученную сульфированием фенолальдегидных смол, фенольных смол, т. е. продуктов конденсации фенолов с альдегидами и другими соединени ми , содержащими карбонильную группу.It turned out that these properties can still be significantly improved by introducing phenol resins, i.e. condensation products of phenols with aldehydes and other compounds containing a carbonyl group, into the sulfo mass obtained by the sulphonation of phenol aldehyde resins.
Дл указанной цели в сульфомассу, полученную сульфированием продукта начальной конденсации фенола с альдегидом , вводитс нерастворима в воде фенольна смола, и смесь нагреваетс при размешивании до тех пор, пока не будет достигнута удовлетворительна растворимость в воде. Количество фенольной смолы можно варьировать в широких пределах, причем, в зависимости от вз тых пропорций сульфомассы и смолы, измен ютс дуб щие свойства получаемого продукта. Чем большее количествоFor this purpose, the sulfolum obtained by the sulfonation of the product of the initial condensation of phenol with aldehyde is introduced into the water-insoluble phenolic resin, and the mixture is heated with stirring until satisfactory solubility in water is achieved. The amount of phenolic resin can be varied over a wide range, and, depending on the proportions of sulfomass and resin taken, the dubbing properties of the resulting product change. The larger number
смолы вводитс в сульфомассу, тем лучше формирующее действие, выше коэфициент дубности кожи и меньше чувствительность дубител к изменени м кислотного режима дублени .the resin is introduced into the sulfomass, the better the forming effect, the higher the coefficient of tannic skin and the less sensitivity of tanning agents to changes in the acid mode of tanning.
После достижени растворимости в воде можно примен ть дополнительную конденсацию с небольшими количествами альдегида, однако это не вл етс об зательным. Готовый продукт может быть нейтрализован содой или аммиаком до желаемого уровн кислотности.After water solubility is achieved, additional condensation may be used with small amounts of aldehyde, however this is not necessary. The finished product can be neutralized with soda or ammonia to the desired level of acidity.
Пример. 100 ч. фенола конденсируютс с 40 ч. 40%-го формалина в присутствии 200 ч. воды и 40 ч. серной кислоты и полученна смола отдел етс от водного сло . 100 ч. полученной смолы сульфируютс при 60-65° с 90 ч. моногидрата в течение 2 часов до растворимости в воде. После этого масса разбавл етс 20 ч. воды и конденсируетс с 10ч. 40%-го формалина. В конденсированную массу прибавл етс 100ч. фенольной смолы, приготовленной, как описано выше, и смесь размешиваетс при 60-70 в течение 2 часов до растворимости в воде. После этого масса охлаждаетс , разбавл етс 60 ч. воды и конденсируетс вторично с 10 ч. 40%-гоExample. 100 parts of phenol are condensed from 40 parts of 40% formalin in the presence of 200 parts of water and 40 parts of sulfuric acid, and the resulting resin is separated from the aqueous layer. 100 parts of the obtained resin are sulphurized at 60-65 ° with 90 parts of monohydrate for 2 hours until solubility in water. The mass is then diluted with 20 parts of water and condensed from 10 hours. 40% formalin. 100 h is added to the condensed mass. a phenolic resin prepared as described above, and the mixture is stirred at 60-70 for 2 hours until it is soluble in water. After this, the mass is cooled, diluted with 60 parts of water and condensed a second time from 10 hours. 40%
формалина. Продукт частично нейтрализуетс и примен етс в дублении.formalin. The product is partially neutralized and applied in tanning.
Предмет изобретени .The subject matter of the invention.
Claims (2)
Family
ID=
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