EP3374529A1 - Liqueurs grasses polymères pour accroître la souplesse d'une peau pendant le tannage - Google Patents

Liqueurs grasses polymères pour accroître la souplesse d'une peau pendant le tannage

Info

Publication number
EP3374529A1
EP3374529A1 EP16834127.9A EP16834127A EP3374529A1 EP 3374529 A1 EP3374529 A1 EP 3374529A1 EP 16834127 A EP16834127 A EP 16834127A EP 3374529 A1 EP3374529 A1 EP 3374529A1
Authority
EP
European Patent Office
Prior art keywords
ranging
general formula
alkenyl
alkyl
fatty
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
Application number
EP16834127.9A
Other languages
German (de)
English (en)
Inventor
Giancarlo LOVATO
Michela PAGANIN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Corichem Srl
Original Assignee
Corichem Srl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from ITUB2015A005367A external-priority patent/ITUB20155367A1/it
Application filed by Corichem Srl filed Critical Corichem Srl
Publication of EP3374529A1 publication Critical patent/EP3374529A1/fr
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
    • C14C9/02—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes using fatty or oily materials, e.g. fat liquoring

Definitions

  • the present invention relates to the synthesis of polymeric fatliquors for increasing softness of skin during the tanning.
  • polymeric fatliquors allow obtaining an emulsion or a solution which remains stable during its transportation or its storage period, and that is strongly fixed to the leather, which does not allow being extracted, so that it is possible to wash the treated leather even in the5 washing machine.
  • main aim of the present invention is to obtain polymeric fatliquors able to confer a higher level of soft feeling in the treated skin in respect with the known polymeric fatliquors.
  • object of the invention is obtaining polymeric fatliquors able to confer to the treated skin a waxy feeling.
  • Another object of the invention is reduce the fogging of skin used for realizing finishing equipment for cars, so that the gravimetric fogging test results are next to zero.
  • an object of the invention is obtaining polymeric fatliquors able to confer to the skin the required lightness and comfort in order to be worn.
  • the subject of the invention is a polymeric fat based on a combination of a glycol polymer + maleic anhydride which was previously reacted with at least one among a fatty alcohol, an ethoxylated fatty alcohol, an ethoxylated fatty acid, a fatty ethoxylated amine and at least one amongst a sorbitol ester, a natural or synthetic glycerol monoester, a natural or synthetic glycerol diester, castor oil, ethoxylated castor oil, a modified lanolin fatty acid, lecithin, modified lecithin + sulfitation or phosphating or sulphation.
  • the polymeric fat may comprise fatty acids, natural and / or synthetic or ethoxylated glycerol oils, natural and / or synthetic fatty esters, e.g. sorbitol, a natural and/or synthetic glycerol monoester, and/or a natural and/or synthetic glycerol diester, lecithin and/or modified lecithin, castor oil, ethoxylated castor oil, modified lanolin.
  • This allows obtaining a polymeric fat able to soften the skin and obtaining leather which is pleasant during the touch, in a more effective way in respect with the polymeric fatliquor of the previous patent.
  • the glycol polymer may be combined in a molar ratio 1 : 0.7-1.3, preferably 1 :1 (so as to obtain advantageously a polymeric fat with less unreacted monomers which would not fix to the leather, and then a more effective product and less polluting for the waste water), with a previously prepared combination of fatty alcohols C6-C28 alkyl or C6-C28 alkenyl and with maleic anhydride in a molar ratio 1 : 0.7-1.3, preferably 1 :1.
  • introducing also the products up to C28 allows obtaining polymeric fatliquors with a higher full and waxy effect, in particular on the leather surface.
  • the polymeric fat may comprise a fatty carboxylic acid and/or fatty lanolin acid, previously treated with a polyglicol polymer having the general formula HO(CH2CH20)n and/or HO(C3H60)mH with n and m ranging from 3 to 300.
  • the polymeric fat may comprise:
  • the glycol polymer may be one of the following:
  • Polyethyleneglycol (PEG) having the general formula HO(C2H40)nH with n ranging from 3 to 300, preferably from 4 to 10
  • PPG polypropylene glycol
  • RN(C2H40)mH(C2H40)nH with R C6-C28 alkyl or C6-C28 alkenyl, preferably C10-C20, and m ranging from 2 to 300 and n ranging from 2 to
  • m ranging from 2 to 10 and n ranging from 2 to 10, or a fatty ethoxylated amine having the general formula RR'N(C2H40)mH with R and R' C6-C28 alkyl or C6-C28 alkenyl, preferably C10-C20, and m ranging from 2 to 300, preferably ranging from 2 to 10.
  • the method for obtaining a polymeric fatliquor according to the invention comprises the following steps: Providing a glycol polymer
  • the following step may be provided:
  • stripping shall be understood the step of setting the compound at a temperature of 160°-350°C for from 2 to 10 hours in possible presence of an acid catalyst as paratoluenesulfonic acid, sulphuric acid, ecc, and at a pressure ranging from -0.1 to -0.997 Bar, in respect with the unitary atmospheric pressure, for a period ranging from 20 minutes to 6 hours, preferably from 20 minutes to 4 hours.
  • an acid catalyst as paratoluenesulfonic acid, sulphuric acid, ecc
  • the step of setting the compound at a pressure ranging from -0.1 to -0.997 Bar in respect with the unitary atmospheric pressure may occur up to obtaining less than 5 mg/KOH acidity.
  • the following step may be provided:
  • the following step may be provided:
  • the compound may be treated alternatively with sulphur dioxide in a molar ratio 1 : 0,7-1 ,3 preferably 1 :1 , at a temperature of from 50 to 100°C, preferably from 80 to 95°C, for from
  • Triethanolamine Monoethanolamine so as to obtain a emulsion or a dispersion of the polymeric fatliquor having from 20% to 90% of active substance, preferably from 30 to 70%.
  • the method for obtaining a polymeric fat according to the invention comprises also the following steps:
  • This decrease in pressure allows advantageously obtaining a purer and more effective product, in particular for skins for automotive upholstery: in such a way values of gravimetric fogging close to zero may be obtained.
  • the compound may be treated alternatively with sulphur dioxide in a molar ratio 1 : 0.7-2.5, at a temperature of from 50 to 100°C, preferably from 80 to 95°C, for from 1 to 4 hours, preferably from 1 to 2 hours.
  • the compound may be treated alternatively with P205 and/or phosphoric acid in a molar ratio 1 : 0.3-3, at a temperature ranging from 50 to 100°C, for from 1 to 6 hours,
  • the compound may be treated alternatively. with sulphuric acid or sulphuric anhydride in a molar ratio 1 : 0.3-2.0, at a temperature ranging from 10 to 60°C, for from 1 to 4 hours,
  • Triethanolamine Monoethanolamine up to a PH between 4 and 9.
  • a possible wash follows, with a slightly alkaline water solution of sodium chloride or sodium sulphate at a concentration ranging from 1% to 30%, separating the wash water and then neutralizing with a water solution of the following alkalis: ammonia, sodium hydroxide, potassium hydroxide, Diethanolamine, Triethanolamine, Monoethanolamine up to a PH between 4 and 9.
  • polymeric fatliquors subject matter of the invention may be obtained by one of the following procedures:
  • PG may be PEG ,PPG, PEG/PPG, fatty ethoxylated alcohol, ethoxylated fatty acid, ethoxylated castor oil, ethoxylated primary and secondary amines;
  • AM corresponds to maleic anhydride
  • R may be: fatty alcohol, fatty ethoxylated alcohol, ethoxylated fatty acid, glycerol monoester, glycerol diester, sorbitol ester, castor oil, ethoxylated castor oil, modified lanolin, lecithin, modified lecithin, ethoxylated primary and secondary amines;
  • PG corresponds to PEG and/or PPG and/or PEG/PPG
  • AM corresponds to maleic anhydride
  • R may be: fatty alcohol, fatty ethoxylated alcohol, ethoxylated fatty acid, glycerol monoester, glycerol diester, sorbitol ester, castor oil, ethoxylated castor oil, modified lanolin, lecithin, modified lecithin, ethoxylated primary and secondary amines;
  • These new substances may be used as fatliquoring agents alone or as raw material for formulating fatliquoring agents for leather, skins, furs, fabrics or other fibrous materials.
  • the leathers treated with these polymeric fatty are soft, smooth, with a fine grain and compact.
  • the fatliquoring treatments based on these polymeric fatliquors have a high factor of exhaustion and a high fattening power and this leads to allow us using a smaller quantity compared to existing agents fatliquoring with equal quality result on the leather, thus obtaining a lower COD of exhaust -20/30% in the exhausted baths.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Cosmetics (AREA)
  • Polyethers (AREA)

Abstract

La présente invention concerne la synthèse d'une liqueur grasse polymère à base d'un polymère de glycol + anhydride maléique ayant préalablement réagi avec au moins un composé parmi un ester de sorbitol, un monoester de glycérol naturel ou synthétique, un diester de glycérol naturel ou synthétique, l'huile de ricin, l'huile de ricin éthoxylée, un acide gras de type lanoline modifié, la lécithine, la lécithine modifiée, + sulfitation ou phosphatation ou sulfatation. Un procédé permettant d'obtenir la liqueur grasse polymère selon l'invention est en outre décrit.
EP16834127.9A 2015-11-09 2016-11-09 Liqueurs grasses polymères pour accroître la souplesse d'une peau pendant le tannage Pending EP3374529A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITUB2015A005367A ITUB20155367A1 (it) 2015-11-09 2015-11-09 Ingrassi polimerici per l?aumento della morbidezza delle pelli durante la concia
ITUB2016A000587A ITUB20160587A1 (it) 2015-11-09 2016-02-09 Ingrassi polimerici per l’aumento della morbidezza delle pelli durante la concia
PCT/IT2016/000262 WO2017081710A1 (fr) 2015-11-09 2016-11-09 Liqueurs grasses polymères pour accroître la souplesse d'une peau pendant le tannage

Publications (1)

Publication Number Publication Date
EP3374529A1 true EP3374529A1 (fr) 2018-09-19

Family

ID=57963397

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16834127.9A Pending EP3374529A1 (fr) 2015-11-09 2016-11-09 Liqueurs grasses polymères pour accroître la souplesse d'une peau pendant le tannage

Country Status (2)

Country Link
EP (1) EP3374529A1 (fr)
WO (1) WO2017081710A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4323550A1 (fr) 2021-04-15 2024-02-21 TFL Ledertechnik GmbH Polylactones modifiées utiles pour la nourriture en bain
CN117660705A (zh) * 2023-10-19 2024-03-08 四川达威科技股份有限公司 一种两性皮革加脂剂及其制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB306672A (en) * 1928-01-23 1929-02-28 Hanseatische Muehlenwerke Ag Improvements in or relating to processes for dressing leather, skins and the like
DE3238180C1 (de) * 1982-10-15 1984-04-19 Schill & Seilacher GmbH & Co, 7030 Böblingen Verfahren zum Fetten von Leder und Pelzen
DE3437443A1 (de) * 1984-10-12 1986-04-17 Henkel KGaA, 4000 Düsseldorf Verfahren zur herstellung von fettungsmittel fuer leder und pelze
EP3094755B1 (fr) * 2014-01-16 2023-04-26 Corichem S.r.l. Liqueurs grasses polymères

Also Published As

Publication number Publication date
WO2017081710A4 (fr) 2017-08-10
WO2017081710A1 (fr) 2017-05-18

Similar Documents

Publication Publication Date Title
US8771374B2 (en) Method for the production of leather, copolymers that are suitable therefor, and further uses thereof
Żarłok et al. Research on application of flax and soya oil for leather fatliquoring
CN102618673B (zh) 一种改性菜籽油复合加脂剂的制备方法
EP3374529A1 (fr) Liqueurs grasses polymères pour accroître la souplesse d'une peau pendant le tannage
CN110387009B (zh) 一种两性聚合物表面活性剂、及含有该表面活性剂的无铬鞣皮革加脂剂
EP3094755B1 (fr) Liqueurs grasses polymères
CN106435054B (zh) 皮革加脂复鞣剂以及制备方法
Pervez et al. Synthesis of biological based anionic fatliquor and its application on leather
US7749409B2 (en) Fatliquoring agents for the flame-retardant treatment of leather
JP6188223B2 (ja) 繊維製品用の洗浄剤
Kassahun Preparation of leather fatliquor cum filler from fleshing waste for retanning process in leather manufacture
PT95552A (pt) Processo de fabricacao de coiros a partir de peles de animais em que sao utilizados compostos quimicos fluorados
KR101581411B1 (ko) 식물성 텐닝 약품을 사용하는 가죽 제조 방법
Suparno Optimization of chamois leather tanning using rubber seed oil
ITUB20155367A1 (it) Ingrassi polimerici per l?aumento della morbidezza delle pelli durante la concia
CN116356086A (zh) 一种加脂剂及其制备方法和应用
US2555684A (en) Compositions for treating leather and textiles
CN103667548B (zh) 一种合成鲸蜡油复合加脂剂及其制备方法
CN108998587A (zh) 一种防水、防油以及防尘皮革的制作工艺
EP2646581B1 (fr) Procédé de production de cuir et formulations aqueuses appropriées à cet effet
US3101238A (en) Fat liquoring with reaction product of epoxidized esters and polybasic inorganic acids
US20100154128A1 (en) Method for producing leather
US20060096036A1 (en) Method for hydrophobing leather and furskins
RU2184785C1 (ru) Способ выработки натуральных кож
EP1510554A1 (fr) Procédé de fabrication de compositions de polysiloxanes et leur application pour l'hydrophobisation ou le surgraissage de matériaux fibreux.

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180518

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20210222