EP0464531A3 - Enzymatic bating preparations - Google Patents

Enzymatic bating preparations Download PDF

Info

Publication number
EP0464531A3
EP0464531A3 EP19910110302 EP91110302A EP0464531A3 EP 0464531 A3 EP0464531 A3 EP 0464531A3 EP 19910110302 EP19910110302 EP 19910110302 EP 91110302 A EP91110302 A EP 91110302A EP 0464531 A3 EP0464531 A3 EP 0464531A3
Authority
EP
European Patent Office
Prior art keywords
proteases
preparations
totality
proportions
bating
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.)
Granted
Application number
EP19910110302
Other languages
German (de)
Other versions
EP0464531B1 (en
EP0464531A2 (en
Inventor
Juergen Dr. Christner
Ernst Pfleiderer
Tilman Dr. Taeger
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.)
Roehm GmbH Darmstadt
Original Assignee
Roehm GmbH Darmstadt
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
Application filed by Roehm GmbH Darmstadt filed Critical Roehm GmbH Darmstadt
Publication of EP0464531A2 publication Critical patent/EP0464531A2/en
Publication of EP0464531A3 publication Critical patent/EP0464531A3/en
Application granted granted Critical
Publication of EP0464531B1 publication Critical patent/EP0464531B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C14C1/00—Chemical treatment prior to tanning
    • C14C1/08—Deliming; Bating; Pickling; Degreasing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Enzymes And Modification Thereof (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Medicinal Preparation (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Abstract

The invention concerns enzymatic bating preparations for carbonic acid deliming using proteases, which bating preparations contain A) alkaline bacterial protease having a pH optimum between 9 and 11 in proportions of 10 - 20% by weight, based on the totality of the proteases P, B) pancreas protease having a pH optimum between 7 and 9 in proportions of between 40 - 70% by weight, based on the totality of proteases P, and C) fungal or bacterial protease having a pH optimum within the pH range 5 to 7 in proportions of from 20 to 40% by weight, based on the totality of proteases P, with the proviso that the proteolytic activities of the A') alkaline bacterial proteases at pH 10, B') the pancreatic enzymes at pH 8 and C') the acidic fungal or bacterial protease at pH 6.5 have been adjusted to the same level.
EP91110302A 1990-06-23 1991-06-22 Enzymatic bating preparations Expired - Lifetime EP0464531B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4020110A DE4020110A1 (en) 1990-06-23 1990-06-23 NEW ENZYMATIC SEEDING PREPARATIONS
DE4020110 1990-06-23

Publications (3)

Publication Number Publication Date
EP0464531A2 EP0464531A2 (en) 1992-01-08
EP0464531A3 true EP0464531A3 (en) 1992-09-09
EP0464531B1 EP0464531B1 (en) 1994-09-28

Family

ID=6408983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91110302A Expired - Lifetime EP0464531B1 (en) 1990-06-23 1991-06-22 Enzymatic bating preparations

Country Status (5)

Country Link
EP (1) EP0464531B1 (en)
AT (1) ATE112323T1 (en)
DE (2) DE4020110A1 (en)
DK (1) DK0464531T3 (en)
ES (1) ES2062621T3 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2147542A (en) * 1937-01-27 1939-02-14 Ruby Kid Co Treating skins, hides, and pelts
DE974813C (en) * 1954-12-24 1961-05-04 Roehm & Haas G M B H Process for pickling animal skin
DE2321629A1 (en) * 1973-04-28 1974-11-14 Roehm Gmbh PICKLING PROCESS

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2147542A (en) * 1937-01-27 1939-02-14 Ruby Kid Co Treating skins, hides, and pelts
DE974813C (en) * 1954-12-24 1961-05-04 Roehm & Haas G M B H Process for pickling animal skin
DE2321629A1 (en) * 1973-04-28 1974-11-14 Roehm Gmbh PICKLING PROCESS

Also Published As

Publication number Publication date
ATE112323T1 (en) 1994-10-15
ES2062621T3 (en) 1994-12-16
DE4020110A1 (en) 1992-01-02
EP0464531B1 (en) 1994-09-28
DK0464531T3 (en) 1994-11-14
EP0464531A2 (en) 1992-01-08
DE59103082D1 (en) 1994-11-03

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