Patent · US Expired

Enzymatic soaking method

US5089414A · kind A · utility

5Cited by

2References

4Claims

0Family size

Assignee

Rohm Co., Ltd. · JP

Inventors

Juergen Christner · Emmelshausen, DE
Ernst Pfleiderer · Weiterstadt, DE
Tilman Taeger · Seeheim-Jugenheim, DE

Key dates

Filing date	May 24, 1990
Grant date	Feb 18, 1992
Priority date	—
Expiry date	May 24, 2010

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC14C1/04
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The soaking of hides and skins is enzymatically assisted in a method using an aqueous float having a pH from 9 to 11 which contains PA1 A) a lipase having an activity optimum in the pH region from 9 to 11, PA1 B) a protease with activity in the pH region from 9 to 11, and PA1 C) a surface active agent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.