US5973035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulosic fiber composites
Assignee: Xyleco Inc
•
Filing: 1997-10-31
•
Granted: 1999-10-26
•
Expires: 2017-10-31
Abstract
Abstract Composites of a resin and texturized cellulosic or lignocellulosic fiber, and methods for forming the composites, are disclosed.
Inventors
- 👤 Marshall Medoff
- 👤 Arthur Lagace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:28
CPC Classifications
C; C08; C08J; C08J11/00; C08J11/04; C08J11/06; C08J3/00; A; A01; A01N; A01N25/00; A01N25/34; A23; A23L; A23L33/00; A23L33/20; A23L33/21; A23L33/24; B; B29; B29B; B29B17/00; B29B17/0026; C08J5/00; C08J5/04; C08J5/045; C08L; C08L101/00; B29B17/04; B29B17/0412; B29B17/02; B29B2017/0213; B29B2017/0217; B29B2017/0224; B29B2017/0424; B29B2017/044; B29K; B29K2311/00; B29K2311/12; B29L; B29L2007/00; B29L2007/002; C08J2323/00; C08J2323/02; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/52; Y02W30/62; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2929; Y10T428/2931
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
57 words
A composite comprising a resin and at least about 2% by weight fiber, wherein the resin is selected from the group consisting of polyethylene, polypropylene, polystyrene, polycarbonate, polybutylene, thermoplastic polyesters, polyethers, thermoplastic polyurethane, PVC, and Nylon; the fiber is cellulosic or lignocellulosic paper that has been sheared to the extent that the internal fibers are substantially exposed.
Claim 2
Dependent Claim
57 words
A composite comprising a resin and at least about 2% by weight fiber, wherein the resin is selected from the group consisting of polyethylene, polypropylene, polystyrene, polycarbonate, polybutylene, thermoplastic polyesters, polyethers, thermoplastic polyurethane, PVC, and Nylon; the fiber is cellulosic or lignocellulosic paper that has been sheared to the extent that the internal fibers are substantially exposed.
Claim 3
Dependent Claim
14 words
The composite of claim 1, comprising at least about 5% by weight texturized fiber.
Claim 4
Dependent Claim
10 words
The composite of claim 1, wherein the fiber is newsprint.
Claim 5
Dependent Claim
11 words
The composite of claim 1, wherein the resin is magazine paper.
Claim 6
Dependent Claim
12 words
The composite of claim 1, wherein the resin is bleached kraft board.
Claim 7
Dependent Claim
12 words
The composite of claim 1, wherein the resin is a thermoplastic resin.
Claim 8
Dependent Claim
11 words
The composite of claim 6, wherein the thermoplastic resin is polyethylene.
Claim 9
Dependent Claim
11 words
The composite of claim 6, wherein the thermoplastic resin is polypropylene.
Claim 10
Dependent Claim
26 words
The composite of claim 1, wherein the composite comprises about 50% to about 70% by weight resin and about 30% to about 50% by weight fiber.
Claim 11
Dependent Claim
36 words
A composite comprising polyethylene and fiber, wherein the fiber is cellulosic or lignocellulosic paper, at least about 50% by weight of said paper having been sheared to the extent that the internal fibers are substantially exposed.
Claim 12
Dependent Claim
36 words
A composite comprising polyethylene and fiber, wherein the fiber is cellulosic or lignocellulosic paper, at least about 50% by weight of said paper having been sheared to the extent that the internal fibers are substantially exposed.
Claim 13
Dependent Claim
63 words
A composite comprising a resin and fiber, wherein the composite has a flexural strength of at least 3,000 psi, the fiber is cellulosic or lignocellulosic paper that has been sheared to the extent that the internal fibers are substantially exposed, and the resin is selected from the group consisting of polyethylene, polypropylene, polystyrene, polycarbonate, polybutylene, thermoplastic polyesters, polyethers, thermoplastic polyurethane, PVC, and Nylon.
Claim 14
Dependent Claim
63 words
A composite comprising a resin and fiber, wherein the composite has a flexural strength of at least 3,000 psi, the fiber is cellulosic or lignocellulosic paper that has been sheared to the extent that the internal fibers are substantially exposed, and the resin is selected from the group consisting of polyethylene, polypropylene, polystyrene, polycarbonate, polybutylene, thermoplastic polyesters, polyethers, thermoplastic polyurethane, PVC, and Nylon.
Claim 15
Dependent Claim
17 words
The composite of claim 9, wherein the composite has a flexural strength of at least 6,000 psi.
Claim 16
Dependent Claim
17 words
The composite of claim 9, wherein the composite has a flexural strength of at least 10,000 psi.
Claim 17
Dependent Claim
21 words
The composite of claim 1, wherein at least about 50% of the fibers have a length/diameter ratio of at least 5.
Claim 18
Dependent Claim
21 words
The composite of claim 1, wherein at least about 50% of the fibers have a length/diameter ratio of at least 25.
Claim 19
Dependent Claim
21 words
The composite of claim 1, wherein at least about 50% of the fibers have a length/diameter ratio of at least 50.
References Cited (Backward Citations)
US1824221A
Cited
US2516847A
Cited
US3516953A
Cited
US3718536A
Cited
US4113908A
Cited
US3943079A
Cited
US4112038A
Cited
US4204010A
Cited
US4244847A
Cited
US4279790A
Cited
US4265846A
Cited
US4559376A
Cited
EP0161766A1
Cited
US4608922A
Cited
US4632170A
Cited
US4717742A
Cited
US4810445A
Cited
US4791020A
Cited
US4818604A
Cited
US4746688A
Cited
US4874095A
Cited
US5155147A
Cited
US5582682A
Cited
AU4781190A
Cited
US4963603A
Cited
US5380180A
Cited
US5137668A
Cited
US5254617A
Cited
US5124519A
Cited
US5064692A
Cited
US5100603A
Cited
US5543205A
Cited
US5439542A
Cited
US5366790A
Cited
US5194461A
Cited
US5574094A
Cited
US5421205A
Cited
US5372878A
Cited
US5298102A
Cited
US5284610A
Cited
US5441801A
Cited
US5437766A
Cited
US5516472A
Cited
US5643635A
Cited
US5480602A
Cited
WO1996013551A1
Cited
WO1996013468A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-10-25 | 2003-04-26 | 2003-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-10-25 | 2007-04-26 | 2007-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-10-25 | 2011-04-26 | 2011-10-26 | $7700.00 | Window Closed / Lapsed |