US5087646A
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Formulations and process for dressing leather and coating textiles
Assignee: Bayer AG
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Filing: 1989-08-22
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Granted: 1992-02-11
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Expires: 2009-08-22
Abstract
Abstract Aqueous formulations containing a copolymer of monoolefinically unsaturated monomers having an acid number of 5 to 150 mg of KOH/g of substance and/or a polyurethane having an acid number of 5 to 150 mg of KOH/g of substance as the binder and a triglycidyl isocyanurate having an epoxy value of 0.5 to 1.01 as the cross-linker are suitable for dressing fill grain, buffed or split leathers.
Inventors
- 👤 Leo Tork
- 👤 Ludwig Rottmaier
- 👤 Wolfgang Hohne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:00
CPC Classifications
C; C14; C14C; C14C11/00; C14C11/003; C14C11/006
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
64 words
In an aqueous formulation for dressing leather and for textile coating comprising a carboxyl-containing polymer as binder and a 1,2-polyepoxide compound as crosslinker, the improvement wherein the binder is a copolymer of monoolefinically unsaturated monomers having an acid number of 5 to 150 mg of KOH/g of substance and the 1,2-polyepoxide compound is a triglycidyl isocyanurate having an epoxy value of 0.5 to 1.01.
Claim 2
Dependent Claim
64 words
In an aqueous formulation for dressing leather and for textile coating comprising a carboxyl-containing polymer as binder and a 1,2-polyepoxide compound as crosslinker, the improvement wherein the binder is a copolymer of monoolefinically unsaturated monomers having an acid number of 5 to 150 mg of KOH/g of substance and the 1,2-polyepoxide compound is a triglycidyl isocyanurate having an epoxy value of 0.5 to 1.01.
Claim 3
Dependent Claim
126 words
An aqueous formulation according to claim 1, wherein the copolymer consists of polymerized units of a) 0-70% by weight of butadiene, isoprene of mixtures thereof, b) 0-40% by weight of acrylonitrile, methacrylonitrile, acrylamide, methacrylamide, methylolacrylamide, methylolmethacrylamide or mixtures thereof, c) 0-60% by weight of styrene, α-methylstyrene, o- or p-chlorostyrene, o- or p-bromostyrene, p-tert-butyl styrene or mixtures thereof, d) 0-99% by weight of acrylic esters with aliphatic C 1 -C 8 -alcohol radicals or mixtures thereof, e) 0-20% by weight of vinyl acetate, f) 1-25% by weight of acrylic acid, methacrylic acid, itaconic acid, maleic acid, fumaric acid, itaconic, maleic or fumaric monoesters having 1 to 8 C atoms in the alcohol component or mixtures thereof, the sum of the percentages of a) to f) being 100.
Claim 4
Dependent Claim
27 words
An aqueous formulation according to claim 1, wherein the crosslinker is a triglycidyl isocyanurate of the formula (I) ##STR2## in which R 1 denotes hydrogen or methyl.
Claim 5
Dependent Claim
12 words
An aqueous formulation according to claim 1, which further contains base-digested casein.
Claim 6
Dependent Claim
14 words
An aqueous formulation according to claim 1, which further contains customary auxiliaries and additives.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-10 | 1995-08-12 | 1996-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-10 | 1999-08-12 | 2000-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-10 | 2003-08-12 | 2004-02-11 | $7700.00 | Window Closed / Lapsed |