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公开(公告)号:US3512918A
公开(公告)日:1970-05-19
申请号:US3512918D
申请日:1966-06-29
Applicant: BASF AG
Inventor: ENDRES HORST , LEPPMEIER FRANZ , ERDMANN HANS
IPC: C14C3/18
CPC classification number: C14C3/18
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公开(公告)号:CA795232A
公开(公告)日:1968-09-24
申请号:CA795232D
Applicant: BASF AG
Inventor: LEPPMEIER FRANZ , ERDMANN HANS , ENDRES HORST
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公开(公告)号:AU2526477A
公开(公告)日:1978-11-23
申请号:AU2526477
申请日:1977-05-19
Applicant: BASF AG
Inventor: FISCHER KARL , HORN PETER , ECKERT GUENTER , LEPPMEIER FRANZ
Abstract: A specific copolyamide and its use for finishing leather and leather substitutes, particularly those of polyurethane. A particular advantage of the copolyamide is its sealing effect counteracting the migration of dyes, plasticizers and fats, combined with other advantages such as good mechanical properties and the stability of the solutions.
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公开(公告)号:CA1085992A
公开(公告)日:1980-09-16
申请号:CA281976
申请日:1977-07-04
Applicant: BASF AG
Inventor: HORN PETER , LEPPMEIER FRANZ , ECKERT GUENTER , FISCHER KARL
Abstract: Nylon copolymer containing piperazine and a process for finishing leather and imitation leather, having a surface of polyurethane or plasticized PVC, by applying a solution of this nylon copolymer and drying it. The overall properties of the finish are better then those of conventional finishes.
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公开(公告)号:CA1084650A
公开(公告)日:1980-08-26
申请号:CA278452
申请日:1977-05-16
Applicant: BASF AG
Inventor: FISCHER KARL , HORN PETER , ECKERT GUENTER , LEPPMEIER FRANZ
Abstract: A specific copolyamide and its use for finishing leather and leather substitutes, particularly those of polyurethane. A particular advantage of the copolyamide is its sealing effect counteracting the migration of dyes, plasticizers and fats, combined with other advantages such as good mechanical properties and the stability of the solutions.
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公开(公告)号:GB1090606A
公开(公告)日:1967-11-08
申请号:GB2967866
申请日:1966-07-01
Applicant: BASF AG
Inventor: ENDRES HORST , LEPPMEIER FRANZ , ERDMANN HANS
IPC: C14C3/08
Abstract: In a process for the complete tanning of material such as animal hides, pelts, fur skins and furs, and the re-tanning of leather, the material is treated with between 1 and 30% of its weight of a methylol derivative of a mononuclear phenol or a binuclear phenol compound containing, in each nucleus, not more than one phenolic hydroxyl group, and being free from anionic groups and condensed rings, in a weakly acidic to weakly alkaline aqueous solution, e.g. having a pH between 6 and 9. The solution may contain up to 50%, by weight of a water-soluble organic solvent, such as methanol, ethanol and acetone. Suitable derivatives are: mono-, di- or polymethylol derivatives of phenol, cresols, xylenols, thymol, carvacrol, halophenols, phenylphenols, monohydroxy- and dihydroxy-diphenylmethanes, dihyroxy-diphenylpropanes. Particularly suitable derivatives are: monomethylol- and dimethylol-4, 4' dihydroxy-diphenyl sulphone. missing page 170
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公开(公告)号:FR1485961A
公开(公告)日:1967-06-23
申请号:FR67995
申请日:1966-07-02
Applicant: BASF AG
Inventor: ENDRES HORST , LEPPMEIER FRANZ , ERDMANN HANS
IPC: C14C3/18
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公开(公告)号:GB1067798A
公开(公告)日:1967-05-03
申请号:GB3829865
申请日:1965-09-08
Applicant: BASF AG
Inventor: MILLER FRANZ-FRIEDRICH , LIDLE HELMUT , LEPPMEIER FRANZ
IPC: C14C1/06
Abstract: Hides and skins are depilated in an aqueous medium with compounds (e.g. sodium chlorite) which split off chlorine dioxide in the presence of an acid, the acid used being one which does not tan or swell the hides. The hides may be immersed in a mixture of the solutions of the chlorine dioxide yielding substance and acid or in the solution of the chloride dioxide yielding substance or acid alone before the addition of the other. The pH of the treating composition may be raised to dissolve the damaged hair or the pH may be adjusted to allow the hides to be tanned. The acid may be produced in the treating medium by adding to the treating medium a salt which gives the desired acid on the addition of an acid or acid salt (e.g. sulphuric, phosphoric, acetic or trichloroacetic acid or potassium or sodium hydrogen sulphate). Suitable non-swelling acids are sulphuric and/or carboxylic acids of the benzene series containing hydroxy, amaino or nitro groups and/or halogen atoms and sulphuric acids of the napthalene series which contain the said substituents (long list of such acids given) and linear polyphosphoric acids.
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公开(公告)号:FR1446704A
公开(公告)日:1966-07-22
申请号:FR30945
申请日:1965-09-09
Applicant: BASF AG
Inventor: MILLER FRANZ FRIEDRICH , LIDLE HELMUT , LEPPMEIER FRANZ
IPC: C14C1/06
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