ES428526A1 - Leather dressing - Google Patents

Leather dressing

Info

Publication number
ES428526A1
ES428526A1 ES428526A ES428526A ES428526A1 ES 428526 A1 ES428526 A1 ES 428526A1 ES 428526 A ES428526 A ES 428526A ES 428526 A ES428526 A ES 428526A ES 428526 A1 ES428526 A1 ES 428526A1
Authority
ES
Spain
Prior art keywords
stirring
stage
organic solvent
emulsion
nitrocellulose
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
Application number
ES428526A
Other languages
Spanish (es)
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.)
BASF SE
Original Assignee
BASF SE
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 DE19732337457 external-priority patent/DE2337457C3/en
Application filed by BASF SE filed Critical BASF SE
Publication of ES428526A1 publication Critical patent/ES428526A1/en
Expired 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
    • C14C11/00—Surface finishing of leather
    • C14C11/003—Surface finishing of leather using macromolecular compounds
    • C14C11/006—Surface finishing of leather using macromolecular compounds using polymeric products of isocyanates (or isothiocyanates) with compounds having active hydrogen
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Paints Or Removers (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Procedure for preparing aqueous dispersions for the final sizing of January, characterized in that, in a first stage, nitrocellulose is dissolved in an amount of 3-20%, with stirring, in an organic solvent, optionally with the addition of 10- 100% by weight of a plasticizer, and this aqueous nitrocellulose emulsion in an organic solvent is introduced, in a second stage and with stirring, into an aqueous dispersion of a polyurethane ionomer, maintaining a weight ratio between the emulsion and the dispersion between 1: 0.1 and 1: 10. (Machine-translation by Google Translate, not legally binding)
ES428526A 1973-07-24 1974-07-23 Leather dressing Expired ES428526A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732337457 DE2337457C3 (en) 1973-07-24 Final finishing agent for leather

Publications (1)

Publication Number Publication Date
ES428526A1 true ES428526A1 (en) 1977-01-16

Family

ID=5887785

Family Applications (1)

Application Number Title Priority Date Filing Date
ES428526A Expired ES428526A1 (en) 1973-07-24 1974-07-23 Leather dressing

Country Status (8)

Country Link
JP (1) JPS5042001A (en)
AR (1) AR199850A1 (en)
BR (1) BR7406020D0 (en)
CA (1) CA1066856A (en)
ES (1) ES428526A1 (en)
FR (1) FR2238761B1 (en)
GB (1) GB1465415A (en)
IT (1) IT1016962B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930410A1 (en) 1979-07-26 1981-02-12 Bayer Ag PROCESS FOR THE PRODUCTION OF STABLE Aqueous DISPERSIONS OF OLIGO- OR POLYURETHANES, AND THEIR USE AS A COATING AGENT FOR FLEXIBLE OR NON-FLEXIBLE SUBSTRATES
US4496624A (en) * 1982-07-14 1985-01-29 Norwood Industries, Inc. Fibrous web impregnated with coagulated polyurethane and polyolefin admixture
SE8303950L (en) * 1982-07-14 1984-01-15 Norwood Ind Inc POLYMER COMPOSITION
KR200193442Y1 (en) * 1997-12-08 2000-09-01 송상구 Height adjustable desk with drawer connection cover
DE102006016452A1 (en) * 2006-04-07 2007-10-11 Bayer Materialscience Ag Nitrocellulose based binders for aqueous nail polishes
EP2028204A1 (en) * 2007-08-22 2009-02-25 Bayer MaterialScience AG NC-PU dispersions with accelerated drying
CN102504167B (en) * 2011-10-10 2013-07-10 嘉兴禾欣化学工业有限公司 Preparation method for nitrated cellulose-modified waterborne polyurethane resin
CN106905858B (en) * 2017-01-17 2018-11-27 济宁市化工研究院 A kind of aqueous nitrocellulose brightener and preparation process
CN111533875B (en) * 2020-05-07 2022-04-19 合肥科天水性科技有限责任公司 Preparation method of cationic waterborne polyurethane, leather bottom sealing resin and leather coating
CN119877296A (en) * 2025-03-05 2025-04-25 广州市名格皮具有限公司 Processing technology of high-elasticity durable leather cloth

Also Published As

Publication number Publication date
FR2238761B1 (en) 1977-10-14
IT1016962B (en) 1977-06-20
CA1066856A (en) 1979-11-27
JPS5042001A (en) 1975-04-16
DE2337457A1 (en) 1975-02-13
AU7152774A (en) 1976-01-29
GB1465415A (en) 1977-02-23
BR7406020D0 (en) 1975-05-13
AR199850A1 (en) 1974-09-30
FR2238761A1 (en) 1975-02-21
DE2337457B2 (en) 1977-03-03

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19930916