Patent US3673059A successfully refreshed from Google Patents.
US3673059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry cleanable vinyl type artificial leather
Assignee: UNIROYAL PLASTICS COMPANY Inc WORLD HEADQUARTERS MIDDLEBURY CT 06749 A CORP OF
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Filing: 1970-05-13
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Granted: 1972-06-27
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Expires: 1990-05-13
Abstract
Abstract Blends of thermoplastic polyurethane elastomer, vinyl, chloridevinyl acetate-vinyl alcohol terpolymer, and hexakis(methoxymethyl)melamine resin cast from solution and cured by heating are resistant to dry cleaning. Material in the form of a sheet including a layer having the stated composition may have a patent leather finish, and the flexibility may be varied, for use in clothing or footwear, usually in combination with a textile fabric layer as a backing.
Inventors
- 👤 Jack P Brandt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:28
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; B; B32; B32B; B32B27/00; B32B27/12; B32B27/30; B32B27/304; B32B27/306; B32B27/40; B32B27/42; C08K; C08K5/00; C08K5/16; C08K5/34; C08L75/00; C08L75/04; D; D06; D06N; D06N3/00; D06N3/12; D06N3/14; D06N3/142; B32B2375/00; B32B2451/00; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31573; Y10T428/31576; Y10T428/3158; Y10T428/31855; Y10T428/31859; Y10T428/31862; Y10T428/31909; Y10T428/31928; Y10T442/00; Y10T442/20; Y10T442/2041; Y10T442/2098; Y10T442/2352; Y10T442/2369; Y10T442/2549; Y10T442/2566; Y10T442/273
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
13 words
A composition as in claim 1 dissolved in an inert volatile organic solvent.
Claim 2
Dependent Claim
7 words
A cross-linked composition as in claim 1.
Claim 3
Dependent Claim
16 words
A composition as in claim 3 in the form of a sheet resistant to dry cleaning.
Claim 4
Dependent Claim
16 words
A leather-like sheet comprising a flexible supporting substrate coated with a composition as in claim 3.
Claim 5
Dependent Claim
64 words
A flexible leather-like sheet material having hand and drape suitable for use in clothing comprising a slip coat layer made of a composition comprising a blend of a thermoplastic polyurethane elastomer and vinyl chloride-vinyl acetate-vinyl alcohol copolymer resin, and underlying laminate layer made of a composition as in claim 3, and a supporTing textile fabric backing layer, said layers being united in face-to-face relationship.
Claim 6
Dependent Claim
57 words
A flexible leather-like sheet material as in claim 6 in which the proportions of (A) thermoplastic polyurethane elastomer and (B) vinyl chloride-vinyl acetate vinyl alcohol copolymer resin in said underlying laminate layer are from 70 to 90 parts of (A) and from 10 to 30 parts of (B), per 100 parts by weight of (A) plus (B).
Claim 7
Dependent Claim
40 words
A flexible leather-like sheet material as in claim 7 in which the proportions of (A) and (B) are 75 to 85 parts of (A) and 15 to 25 parts of (B) per 100 parts by weight of (A) plus (B).
Claim 8
Dependent Claim
56 words
A leather-like sheet material suitable for use as a shoe upper material comprising a skin coat layer made of a composition as in claim 3, an underlying plasticized polyvinyl chloride resin layer adhered to the skin coat layer, and a textile fabric backing layer on said underlying layer, the said layers being united in face-to-face relationship.
Claim 9
Dependent Claim
54 words
A patent leather-like sheet material as in claim 9 in which the proportions of (A) thermoplastic polyurethane elastomer and (B) vinyl chloride-vinyl acetate-vinyl alcohol copolymer resin in said skin coat layer are 35 to 65 parts of (A) and 35 to 65 parts of (B), per 100 parts by weight of (A) plus (B).
Claim 10
Dependent Claim
52 words
A patent leather-like sheet material as in claim 10 in which the proportions of (A) and (B) are 40 to 55 parts of (A) and 45 to 60 parts of (B), and the amount of hexakis(methoxymethyl)melamine resin is from 0.5 to 10 parts, per 100 parts by weight of (A) plus (B).
Claim 11
Dependent Claim
177 words
A leather-like dry-cleanable laminated fabric which is flexible, non-porous, and has a patent leather-like non-tacky slip-coat finish which is hard, dry and wear-resistant, comprising the following layers united in face-to-face relationship: i. a layer of textile fabric backing; ii. a laminate coat on one side of said fabric backing comprising a blend of (A) 75 to 85 parts by weight of thermoplastic polyurethane elastomer, (B) 15 to 25 parts by weight of vinyl chloride-vinyl acetate-vinyl alcohol cross-linking copolymer resin, and (C), as a cross-linking agent for said resin, 1 to 7 parts by weight of hexakis(methoxymethyl)melamine resin, per 100 parts by weight of (A) plus (B); and iii. a slip coat on the outer surface of said laminate coat comprising a blend of (A'') 40 to 55 parts by weight of thermoplastic polyurethane elastomer, (B'') 45 to 60 parts by weight of vinyl chloride-vinyl acetate-vinyl alcohol cross-linking copolymer resin, and (C'') as a cross-linking agent for said resin, 1 to 7 parts by weight of hexakis(methoxymethyl) melamine resin, per 100 parts by weight of (A'') plus (B'').
Claim 12
Dependent Claim
121 words
A leather-like dry-cleanable laminated footwear upper material which is flexible and non-porous and has a durable non-tacky patent leather finish skin coat, comprising the following layers united in face-to-face relationship: i. a layer of textile fabric backing; ii. a plasticized polyvinyl chloride resin layer on one side of said fabric backing; and iii. a skin coat adhered to the outer side of said resin layer comprising a blend of (A) 40 to 55 parts by weight of thermoplastic polyurethane elastomer, (B) 45 to 60 parts by weight of vinyl chloride-vinyl acetate-vinyl alcohol cross-linking copolymer resin, and (C), as a cross-linking agent for (B), 1 to 7 parts by weight of hexakis(methoxymethyl)melamine resin, per 100 parts by weight of (A) plus (B).
Claim 13
Dependent Claim
181 words
A leather-like dry-cleanable laminated sheet material having hand and drape suitable for clothing, which is flexible and has a soft hand non-patent finish comprising the following layers united in face-to-face relationship: i. A layer of textile fabric backing; ii. a laminate coat on one side of said fabric backing comprising a blend of (A) 75 to 85 parts by weight of thermoplastic polyurethane elastomer, (B) 15 to 25 parts by weight of vinyl chloride-vinyl acetate-vinyl alcohol cross-linking copolymer resin, and (C), as a cross-linking agent for said resin, 1 to 7 parts by weight of hexakis(methoxymethyl) melamine resin, per 100 parts by weight of (A) plus (B); and iii. a slip coat on the outer surface of said laminate coat comprising a blend of (A'') 75 to 85 parts by weight of thermoplastic polyurethane elastomer, and (B'') 15 to 25 parts by weight of vinyl chloride-vinyl acetate-vinyl alcohol copolymer resin per 100 parts by weight of (A'') plus (B''), the said cross-linking agent (C) being present only in said layer (ii) for the purpose of curing the said resin (B) therein.
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |