Patent US4473049A successfully refreshed from Google Patents.
Patent US4501783A successfully refreshed from Google Patents.
US4501783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-slip floor material
Assignee: Toyo Linoleum Co Ltd
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Filing: 1983-06-06
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Granted: 1985-02-26
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Expires: 2003-06-06
Abstract
Abstract A non-slip plastics floor material having high durability and comprising a polyvinyl chloride matrix layer having synthetic resin particles dispersed therein throughout its entire thickness. The resin particles have a softening point higher than the processing temperature of the resin composition forming the matrix layer and higher abrasion resistance than the matrix layer. Some of the resin particles are exposed from the surface of the matrix layer.
Inventors
- 👤 Yoshiaki Hiragami
- 👤 Mikio Yabu
- 👤 Yozi Kawaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:42
CPC Classifications
D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0039; D06N7/0052; D06N7/0055; E; E04; E04F; E04F15/00; E04F15/02; E04F15/02172; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24405; Y10T428/249921; Y10T428/249953; Y10T428/249955; Y10T428/249958; Y10T428/25; Y10T428/254; Y10T442/00; Y10T442/30; Y10T442/3854; Y10T442/387; Y10T442/60; Y10T442/674; Y10T442/676; Y10T442/699
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
180 words
A non-slip floor material characterized in that the floor material comprises a polyvinyl chloride matrix surface layer having dispersed therein throughout its entire thickness synthetic resin particles selected from the group consisting of acrylic resin, polyurethane, nylon resin, polyester and ABS resin in an amount of 3 to 30 wt.% of the entire weight of the matrix layer, the resin particles being 100μ to 1 mm in particle size and having a softening point higher than the processing temperature of the resin composition forming the matrix layer and higher abrasion resistance than the matrix layer, a quantity of the resin particles being exposed from the surface of the matrix layer, wherein the difference in abrasion weight loss between the matrix layer and the particles is at least 50 mg and the difference in wear thickness between the matrix layer and the particles is at least 0.01 mm when the floor material is subjected to 1000 cycles of a Taber abraser apparatus at a loading of 500 g on each wheel, the wheels having S-33 sandpaper attached to the surfaces thereof.
Claim 2
Dependent Claim
180 words
A non-slip floor material characterized in that the floor material comprises a polyvinyl chloride matrix surface layer having dispersed therein throughout its entire thickness synthetic resin particles selected from the group consisting of acrylic resin, polyurethane, nylon resin, polyester and ABS resin in an amount of 3 to 30 wt.% of the entire weight of the matrix layer, the resin particles being 100μ to 1 mm in particle size and having a softening point higher than the processing temperature of the resin composition forming the matrix layer and higher abrasion resistance than the matrix layer, a quantity of the resin particles being exposed from the surface of the matrix layer, wherein the difference in abrasion weight loss between the matrix layer and the particles is at least 50 mg and the difference in wear thickness between the matrix layer and the particles is at least 0.01 mm when the floor material is subjected to 1000 cycles of a Taber abraser apparatus at a loading of 500 g on each wheel, the wheels having S-33 sandpaper attached to the surfaces thereof.
Claim 3
Dependent Claim
23 words
A floor material as defined in claim 1 wherein the resin particles are in the range of 140 to 150μ in particle size.
Claim 4
Dependent Claim
21 words
A floor material as defined in claim 1 wherein the matrix layer is about 0.1 to about 5 mm in thickness.
Claim 5
Dependent Claim
21 words
A floor material as defined in claim 3 wherein the matrix layer is about 0.3 to about 3 mm in thickness.
Claim 6
Dependent Claim
19 words
A floor material as defined in claim 1 which further has a backing laminated to the rear surface thereof.
Claim 7
Dependent Claim
42 words
A floor material as defined in claim 5 wherein the backing is a sheet of one of foamed plastics, non-foamed plastics, a woven fabric of one of organic and inorganic fibers, and a nonwoven fabric of one of organic and inorganic fiber.
Claim 8
Dependent Claim
25 words
A floor material as defined in claim 5 wherein the thickness of the floor material including the backing is about 1 to about 10 mm.
Claim 9
Dependent Claim
25 words
A floor material as defined in claim 7 wherein the thickness of the floor material including the backing is about 2 to about 5 mm.
Claim 10
Dependent Claim
15 words
A floor material as defined in claim 1, wherein the resin particles are of polyurethane.
Claim 11
Dependent Claim
17 words
A floor material as claimed in claim 5, wherein the backing is a sheet of foamed plastics.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-26 | 1988-08-27 | 1989-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-26 | 1992-08-27 | 1993-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-26 | 1996-08-27 | 1997-02-26 | $7700.00 | Window Closed / Lapsed |